3M Projector MP8790 User Manual
MP8790  
Multimedia Projector  
Operator's Guide  
© 3M 2002. All Rights Reserved.  
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3M™ Multimedia Projector MP8790  
MP8790 Multimedia Projector  
Operator's Guide  
Thank you for purchasing this projector.  
WARNING • Please read the “Product Safety Guide" and this "Operator's  
Guide” thoroughly to ensure correct usage through understanding.  
After reading, store this instruction manual in a safe place for future reference.  
NOTE  
• The information in this manual is subject to change without notice.  
• The manufacturer assumes no responsibility for any errors that may appear in this manual  
• The reproduction, transmission or use of this document or contents is not permitted without express  
written authority.  
TRADEMARK ACKNOWLEDGEMENT :  
• PS/2, VGA and XGA are registered trademarks of the International Business Machines Corporation.  
• Apple, Mac and ADB are registered trademarks of Apple Computer, Inc.  
• VESA and SVGA are trademarks of the Video Electronics Standard Association.  
• Windows is a registered trademark of Microsoft Corporation.  
• All other trademarks are the property of their respective owners.  
CONTENTS  
Page  
PROJECTOR FEATURES................2  
PREPARATIONS ..............................2  
PART NAMES...................................4  
SETTING UP THE PROJECTOR .......6  
CONNECTING YOUR DEVICES.......8  
USING THE REMOTE CONTROL...13  
TURNING ON THE POWER ...........15  
TURNING OFF THE POWER .........17  
ADJUSTING THE VOLUME ...........18  
TEMPORARILY MUTING  
THE SOUND....................................18  
ADJUSTING THE POSITION..........19  
USING THE AUTOMATIC  
ADJUSTMENT FEATURE ..............20  
CORRECTING KEYSTONE  
Page  
ADJUSTING SCREEN WITH  
ONE-TOUCH...................................23  
SELECTING THE ASPECT  
RATIO..............................................24  
TEMPORARILY BLANKING  
THE SCREEN..................................24  
DISPLAYING CHILD WINDOW  
(P. IN. P: Picture in Picture) ..........24  
USING THE MENU FUNCTIONS.....25  
MULTIFUNCTIONAL SETTINGS.....26  
OPERATING THE PC SCREEN .....32  
THE LAMP ......................................33  
THE AIR FILTER.............................35  
OTHER CARE..................................37  
WHAT TO DO WHEN YOU THINK  
DISTORTIONS ................................21  
USING THE MAGNIFY  
FEATURE........................................22  
FREEZING THE SCREEN ..............22  
A MACHINE DEFECT HAS OCCURRED...38  
SPECIFICATIONS............................41  
ACCESSORIES .............................. 42  
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1
3M™ Multimedia Projector MP8790  
This liquid crystal projector is used to project  
various computer signals as well as NTSC / PAL /  
SECAM video signals onto a screen. Little space  
is required for installation and large images can  
easily be realized.  
PROJECTOR  
FEATURES  
Ultra High Brightness  
One Touch Function  
G
G
Crisp, ultra-bright presentations is achieved  
by using a UHB (ultra high brightness) lamp  
and a highly efficient optical system  
Just press the ONE TOUCH button to  
automatically retrieve input signals, calibrate  
images, and correct keystone distortion  
Partial Magnification Function  
Whisper Mode Equipped  
G
G
Interesting parts of images can be magnified  
for closer viewing  
Special mode is available for reducing  
projector noise to achieve quieter operation  
Your projector should come with the items  
shown below. Check to make sure that all the  
items are included. Contact your dealer if  
anything is missing.  
PREPARATIONS  
NOTE • Keep the original packing material for future reshipment.  
Power cord  
(US, UK, Europe)  
Stereo Mini-Cable  
S-Video  
Cable  
Projector  
(with Lens Cap)  
MP7650/MP7750  
Multimedia Projector  
ltj
e Securite de Produit  
itsanleitung des Gerats  
clíde Seguridad del Producto  
tliil
lt
di Sicurezza del Prodotto  
-
liidgids op Product  
RGB cable  
Video/Audio  
cable  
Component Video  
cable  
da Seguranca de Produto  
lttrisning for Produktsakerhets  
5 6 8  
(with white lead)  
(with green lead)  
LASER  
INDICATOR  
Operator's Guide  
Product Safety Guide  
Warranty  
STANDBY/ON VIDEO  
RGB  
UP  
FOCUS  
BLANK  
ZOOM  
PAGE  
DOWN  
LASER  
USB mouse  
cable  
Quick Start Guide  
ASPECT  
PUSH  
ENTER  
ESC  
MENU  
AUTO  
RESET  
PinP  
Two AA batteries  
(for the remote  
control)  
POSITION  
MAGNIFY  
ON  
VOLUME  
MUTE  
FREEZE  
OFF  
WIRELESS  
KEYSTONE ONE TOUCH  
RS-232C  
adapter  
Remote control  
2
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3M™ Multimedia Projector MP8790  
WARNING Precautions to observe in regards to the power cord: Please use extra  
caution when connecting the projector's power cord as incorrect or faulty  
connections may result in FIRE AND/OR ELECTRICAL SHOCK. Please adhere to the  
following safety guidelines to insure safe operation of the projector:  
•
Only plug the power cord into outlets rated for use with the power cord's specified voltage range.  
• Only use the power cord that came with the projector.  
• NEVER ATTEMPT TO DEFEAT THE GROUND CONNECTION OF THE THREE-  
PRONGED PLUG!  
• Make sure that you firmly connect the power cord to the projector and wall outlet.  
Connect your devices to the projector  
Connect your computer, VCR and/or other  
devices you will be using to the projector.  
8
～
12  
1
Insert the batteries into the remote  
control  
13  
2
3
Connect the power cord  
(1) Connect the connector of the electrical power cord to the AC inlet of the main unit.  
(2) Firmly plug the power cord's plug into the outlet  
Power outlet  
(1)  
(2)  
AC inlet  
Power cord  
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3
3M™ Multimedia Projector MP8790  
THE PROJECTOR  
Indicates the  
corresponding  
reference page  
PART NAMES  
21  
16  
KEYSTONE button  
RGB indicator  
16  
RESET button  
19  
BNC indicator  
ZOOM button  
RGB  
BNC  
16  
DVI indicator  
16  
FOCUS  
RESET  
ZOOM  
KEYSTONE  
DVI  
INPUT dial  
16  
FOCUS button 16  
VIDEO  
ONE TOUCH MENU  
ENTER  
16 VIDEO indicator  
S-VIDEO  
COMPONENT  
ONE TOUCH button  
22  
S-VIDEO indicator  
STANDBY/ON  
16  
16  
MENU button  
25  
LANP  
TENP  
COMPONENT indicator  
STANDBY/ON button  
15  
39 LAMP indicator  
TEMP indicator 
39  
Control Panel  
Elevator screw  
6
Elevator feet  
6
15  
Lens cap  
29  
Air filter  
14  
Remote sensor  
Elevator button  
6
15  
Lens  
COMPONENT VIDEO port  
12  
REMOTE CONTROL port  
14  
CONTROL port  
10  
VIDEO IN port  
12  
WIRELESS & NETWORK  
31  
S-VIDEO IN port  
12  
MODULE port  
RGB OUT port  
12  
Remote sensor  
14  
3
DVI port  
11  
10  
AC power inlet  
RGB port  
Power switch  
15  
BNC port  
11  
10  
USB port  
AUDIO OUT port  
AUDIO IN 1/2 port  
AUDIO IN R/L port  
12  
9
10  
4
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THE REMOTE CONTROL  
LASER INDICATOR  
1 4  
RGB button  
1 6  
1 6  
2 6  
VIDEO button  
1 6  
1 5  
LASER  
INDICATOR  
ZOOM buttons  
PAGE buttons  
VIDEO  
ZOOM  
RGB  
STANDBY/ON  
STANDBY/ON button  
UP  
FOCUS  
BLANK  
PAGE  
DOWN  
FOCUS buttons  
BLANK button  
Disk pad  
1 6  
2 4  
2 6  
LASER  
LASER button  
1 4  
2 6  
Right mouse button  
<For mouse control>  
<For mouse control>  
Mouse cursor movement  
Left mouse click  
Right mouse click  
ASPECT  
Lever switch (*)  
2 5  
ASPECT button  
2 4  
2 5  
2 5  
2 5  
1 9  
2 2  
3 1  
2 1  
PUSH  
ENTER  
RESET button  
AUTO button  
PinP button  
1 9  
2 0  
2 4  
1 8  
1 8  
2 2  
Left  
/Right  
ESC  
MENU  
AUTO  
RESET  
PinP  
Key buttons  
POSITION  
ESC button  
MAGNIFY  
ON  
VOLUME  
MUTE  
MENU button  
VOLUME button  
MUTE button  
FREEZE button  
FREEZE  
OFF  
POSITION button  
MAGNIFY buttons  
WIRELESS button  
KEYSTONE button  
WIRELESS  
KEYSTONE ONE TOUCH  
ONE TOUCH button  
2 3  
REMOTE CONTROL port  
1 4  
* Using the lever switch  
Flip toward disk pad : Up ( ) key  
Flip toward MENU button: Down ( ) key  
Press in center  
: ENTER button  
5
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3M™ Multimedia Projector MP8790  
SETTING UP THE PROJECTOR  
CAUTION • Install the projector in a suitable environment according to instructions  
of the “Product Safety Guide” and "Operator's Guide".  
• If you press the elevator buttons without holding the projector, the projector might  
crash down, overturn, smash your fingers and possibly result in malfunction. To  
prevent damaging the projector and injuring yourself, ALWAYS HOLD THE  
PROJECTOR whenever using the elevator buttons to adjust the elevator feet.  
Adjusting the Projector's Elevator Feet  
If the surface on which the projector is placed, or the screen is tilted, use the  
elevator feet and elevator screw to adjust the projection angle of the main unit.  
The adjustment range of the elevator feet is 0 to 9 degrees.  
Press and hold in the elevator  
buttons  
1
Elevator button  
Raise or lower the projector to the  
desired height and then release the  
elevator buttons  
When you release the elevator buttons, the elevator  
feet will lock into position.  
2
Elevator feet  
Turn the elevator screw to fine tune.  
3
Elevator screw  
6
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3M™ Multimedia Projector MP8790  
Adjusting the Screen Size and Projection Distance  
Refer to the illustrations and tables below to determine the screen size and  
projection distance.  
The values shown in the table are calculated for a full size screen  
a:Distance from the projector to the screen (±10%)  
b:Distance from the lens center to the bottom of the screen (±10%)  
c:Distance from the lens center to the top of the screen (±10%)  
The screen  
Top view  
If 4:3 aspect ratio  
4
3
a [inch (m)]  
Min. Max.  
b
c
Screen Size [inch (m)]  
[inch (cm)] [inch (cm)]  
30 (0.8)  
40 (1.0)  
50 (1.3)  
60 (1.5)  
70 (1.8)  
80 (2.0)  
90 (2.3)  
100 (2.5)  
120 (3.0)  
150 (3.8)  
200 (5.0)  
250 (6.3)  
300 (7.5)  
34 (0.9) 52 (1.3) 0 (0) 18 (46)  
46 (1.2) 71 (1.8) 0 (0) 24 (61)  
58 (1.5) 89 (2.3) 0 (0) 30 (76)  
71 (1.8) 107 (2.7) 0 (0) 36 (91)  
83 (2.1) 126 (3.2) 0 (0) 42 (107)  
95 (2.4) 144 (3.7) 0 (0) 48 (122)  
108 (2.7) 162 (4.1) 0 (0) 54 (137)  
120 (3.0) 181 (4.6) 0 (0) 60 (152)  
144 (3.7) 217 (5.5) 0 (0) 72 (183)  
181 (4.6) 272 (6.9) 0 (0) 90 (229)  
243 (6.2) 364 (9.2) 0 (0) 120 (305)  
304 (7.7) 455 (11.6) 0 (0) 150 (381)  
366 (9.3) 547 (13.9) 0 (0) 180 (457)  
Lens center  
c
Side view  
Top view  
a
The screen  
If 16:9 aspect ratio  
16  
9
a [inch (m)]  
Min. Max.  
b
c
Screen Size [inch (m)]  
[inch (cm)] [inch (cm)]  
30 (0.8)  
40 (1.0)  
50 (1.3)  
60 (1.5)  
70 (1.8)  
80 (2.0)  
90 (2.3)  
100 (2.5)  
120 (3.0)  
150 (3.8)  
200 (5.0)  
250 (6.3)  
300 (7.5)  
37 (0.9) 57 (1.4) 2 (6.2) 17 (44)  
50 (1.3) 77 (2.0) 13 (32) 27 (70)  
64 (1.6) 97 (2.5) 16 (41) 31 (78)  
77 (2.0) 117 (3.0) 19 (49) 34 (86)  
90 (2.3) 137 (3.5) 22 (57) 37 (94)  
104 (2.6) 157 (4.0) 26 (65) 40 (102)  
117 (3.0) 177 (4.5) 29 (73) 43 (110)  
131 (3.3) 197 (5.0) 32 (81) 47 (118)  
157 (4.0) 237 (6.0) 38 (97) 53 (134)  
198 (5.0) 296 (7.5) 48 (121) 63 (159)  
265 (6.7) 396 (10.1) 64 (162) 78 (199)  
332 (8.4) 496 (12.6) 80 (202) 94 (240)  
399 (10.1) 596 (15.1) 96 (243) 110 (280)  
Lens center  
c
Side view  
b
a
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7
3M™ Multimedia Projector MP8790  
CONNECTING YOUR DEVICES  
Devices You Can Connect to the Projector  
(Refer to this section for planning your device  
configuration to use for your presentation.)  
CAUTION • Incorrect connecting could result in fire or electrical shock. Please  
read the "Product Safety Guide" and this "Operator's guide".  
ATTENTION Precautions to observe when connecting other devices to the projector  
• Whenever attempting to connect other devices to the projector, please thoroughly  
read the manual of each device to be connected.  
• TURN OFF ALL DEVICES prior to connecting them to the projector. Attempting to  
connect a live device to the projector may generate extremely loud noises or other  
abnormalities that may result in malfunction and/or damage to the device and/or  
projector. Refer to the “Technical” for the pin assignment of connectors and RS-232C  
communication data.  
• Make sure that you connect devices to the correct port. Incorrect connection may  
result in malfunction and/or damage to the device and/or projector.  
• Some cables may have to be used with core set. Use the accessory cable or a  
designated-type cable for the connection. For cables that have a core only at one  
end, connect the core to the projector.  
• Secure the screws on the connectors and tighten.  
Indicates the  
corresponding  
reference page  
Display monitors  
12  
DVD players  
11  
10 Laptop computers  
VCRs  
11  
Desktop computers  
10  
8
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3M™ Multimedia Projector MP8790  
Ports and Cables  
Refer to the table below to find out which projector port and cable to use for connecting a  
given device. Use this table for determining which cables to prepare.  
Function  
Projector Port  
Connection Cables  
RGB cable  
RGB  
(With D-sub 15-pin shrink jack and inch  
thread screws)  
Analog RGB input  
BNC(R/CR/PR)(G/Y)(B/CB/PB)(H)(V)  
• When BNC (RGB) is selected (*)  
BNC cable  
RGB cable  
Analog output  
DVI input  
RGB OUT  
(With D-sub 15-pin shrink jack and inch  
thread screws)  
DVI  
DVI cable  
AUDIO IN 1  
•
Linked to RGB or DVI port input  
AUDIO IN 2  
Linked to BNC (RGB) port input (*)  
Audio input from computer  
Audio/video cable (Stereo mini)  
•
USB mouse control  
PS/2 mouse control  
ADB mouse control  
Serial mouse control  
RS-232C communications  
S video input  
USB  
USB cable  
PS/2 mouse cable  
ADB mouse cable  
CONTROL  
Serial mouse cable  
RS-232C adapter + RS-232C cable  
S-video cable (mini DIN 4-pin jack)  
Audio/video cable  
S-VIDEO IN  
Video input  
VIDEO IN  
COMPONENT(CR/PR)(CB/PB)(Y)  
BNC(R/CR/PR)(G/Y)(B/CB/PB)  
• When BNC (COMPONENT) is  
selected (*)  
Component video input  
Component video cable  
Audio input from video equipment AUDIO IN R,L  
Audio output AUDIO OUT  
Wired remote control signal input REMOTE CONTROL  
Audio/video cable or audio cable (RCA jack)  
Audio cable (Stereo mini)  
Audio cable (Stereo mini)  
* Before using the BNC port, change RGB input to component video input on the BNC menu item of  
the INPUT menu.  
NOTE  
About Plug-and-Play Capability  
•
This projector is compatible with VESA DDC 1/2B. Plug-and-Play can be achieved by connecting  
this projector to computers that are VESA DDC (display data channel) compatible. Please take  
advantage of this function by connecting the accessory RGB cable to the RGB port (DDC 1/2B  
compatible). Plug-and-Play may not work properly if any other type of connection is attempted.  
• Plug-and-Play is a system composed of the computer, its operating system and  
peripheral equipment (i.e. display devices).  
• Please use the standard drivers as this projector is a Plug-and-Play monitor.  
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9
3M™ Multimedia Projector MP8790  
CONNECTING YOUR DEVICES (continued)  
Connecting to a Computer  
ATTENTION Whenever attempting to connect a laptop computer to the projector,  
be sure to activate the laptop's RGB external image output (set the laptop to CRT  
display or to simultaneous LCD and CRT display). For details on how this is done,  
please refer to the instruction manual of the corresponding laptop computer.  
REMOTE  
REMOTE  
CONTROL  
CONTROL  
DVI  
CR/PR  
Y
Ca/Pa  
COMPONENT VIIDEO  
DVI  
CR/PR  
Y
Ca/Pa  
COMPONENT VIIDEO  
A
B
A
RGB  
RGB OUT  
B/Ca/Pa  
CONTROL  
RGB  
RGB OUT  
B/Ca/Pa  
CONTROL  
R-AUDIO IN-L VIDEO IN  
R-AUDIO IN-L VIDEO IN  
S-VIDEO IN  
S-VIDEO IN  
R/CR/PR  
G/Y  
H
V
1
2
R/CR/PR  
G/Y  
H
V
1
2
C
D
B
BNC  
AUDIO IN  
AUDIO OUT  
USB  
BNC  
AUDIO IN  
AUDIO OUT  
USB  
C
A
B
D
B
A
USB cable  
If connecting to a  
USB port equipped  
computer  
Desktop computer  
Laptop computer  
NOTE  
• Some computers may have multiple display screen modes. Use of some of these  
modes will not be possible with this projector.  
• For some RGB input modes, the optional Mac adapter is necessary.  
10  
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3M™ Multimedia Projector MP8790  
Connecting to a Computer (continued)  
BNC Input  
DVI Input  
REMOTE  
REMOTE  
A
CONTROL  
CONTROL  
DVI  
CR/PR  
Y
DVI  
Ca/Pa  
COMPONENT VIIDEO  
CR/PR Ca/Pa  
Y
COMPONENT VIIDEO  
RGB  
RGB OUT  
CONTROL  
RGB  
RGB OUT  
B/Ca/Pa  
CONTROL  
R-AUDIO IN-L VIDEO IN  
R-AUDIO IN-L VIDEO IN  
S-VIDEO IN  
S-VIDEO IN  
R/CR/PR  
G/Y  
B/Ca/Pa  
H
V
1
2
R/CR/PR  
G/Y  
H
V
1
2
B
B
A
A
A
A
A
BNC  
AUDIO IN  
AUDIO OUT  
USB  
BNC  
AUDIO IN  
AUDIO OUT  
USB  
A
A
B
B
Desktop computer  
Desktop computer  
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11  
3M™ Multimedia Projector MP8790  
CONNECTING YOUR DEVICES (continued)  
Connecting to a VCR  
Connecting to a DVD Player  
REMOTE  
REMOTE  
CONTROL  
CONTROL  
DVI  
CR/PR  
Y
Ca/Pa  
COMPONENT VIIDEO  
DVI  
CR/PR  
Y
Ca/Pa  
COMPONENT VIIDEO  
A A A  
C
B B B  
B
A A A  
RGB  
RGB OUT  
B/Ca/Pa  
CONTROL  
RGB  
RGB OUT  
B/Ca/Pa  
CONTROL  
R-AUDIO IN-L VIDEO IN  
S-VIDEO IN  
R-AUDIO IN-L VIDEO IN  
S-VIDEO IN  
R/CR/PR  
G/Y  
H
V
1
2
R/CR/PR  
G/Y  
H
V
1
2
BNC  
AUDIO IN  
AUDIO OUT  
USB  
BNC  
AUDIO IN  
AUDIO OUT  
USB  
A
B
A
B
C
S-VIDEO cable  
S-VIDEO cable  
If using a S-video  
connection  
If using a S-video  
connection  
If using an audio/video  
connection  
If using a component  
video connection  
VCR  
DVD player  
Connecting to a Display Monitor  
REMOTE  
CONTROL  
DVI  
CR/PR  
Y
Ca/Pa  
COMPONENT VIIDEO  
A
RGB  
RGB OUT  
CONTROL  
R-AUDIO IN-L VIDEO IN  
S-VIDEO IN  
R/CR/PR  
G/Y  
B/Ca/Pa  
H
V
1
2
BNC  
AUDIO IN  
AUDIO OUT  
USB  
A
Display monitor  
12  
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3M™ Multimedia Projector MP8790  
USING THE REMOTE CONTROL  
Putting batteries into the remote control unit  
CAUTION Precautions to observe in regards to the batteries  
Always handle the batteries with care and use them only as directed. Improper use may result in  
battery cracking or leakage, which could result in fire, injury and/or pollution of the surrounding environment.  
• Keep the battery away from children and pets.  
•
•
Be sure to use only the batteries specified for use with the remote control. Do not mix new batteries with used ones.  
When inserting batteries, verify that the plus and minus terminals are aligned correctly (as indicated in the remote control).  
• When you dispose the battery, you should obey the law in the relative area or country.  
Remove the battery cover  
1
Slide back and remove the battery cover in the direction of the  
arrow.  
Insert the batteries  
2
Align and insert the two AA batteries (that came with the  
projector) according to their plus and minus terminals (as  
indicated in the remote control).  
Close the battery cover  
3
Replace the battery cover in the direction of the arrow and  
snap it back into place.  
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13  
3M™ Multimedia Projector MP8790  
USING THE REMOTE CONTROL (continued)  
Operating the remote control  
WARNING • The laser pointer of the remote control transmitter is used in  
place of a finger or rod. Never look directly into the laser beam outlet or point  
the laser beam at other people. The laser beam can cause vision problems.  
CAUTION • Use of controls or adjustments or performance of procedures  
other than those specified herein may result in hazardous radiation exposure.  
•
•
The remote control works with both the  
projector's front and rear remote sensors.  
The range of the remote sensor on the front is 3  
meters with a 60-degree range (30 degrees to the  
left and right of the remote sensor), and back is 3  
meters with a 40-degree range.  
•
•
Since the remote control uses infrared light to send  
signals to the projector (Class 1 LED), be sure to use  
the remote control in an area free from obstacles  
that could block the remote control's output signal to  
the projector.  
approximately  
3 meters  
approximately  
3 meters  
The wired remote control:  
You can use the remote control as a wired remote control, by connecting the REMOTE CONTROL ports of the  
main unit and remote control via an audio cable (3.5 dia. stereo mini cable with plugs).  
ATTENTION  
Precautions to observe when using the remote control  
• Do not disassemble the remote control.  
• Do not drop or otherwise expose the remote control to physical impact.  
•
Do not get the remote control wet or place it on wet objects. Doing so may result in malfunction.  
• Do not place the remote control near the projector’s lens, fan, or vents.  
• Remove the batteries from the remote control and store them in a safe place if you  
won't be using the remote control for an extended period.  
• Replace the batteries whenever the remote control starts to malfunction.  
•
When strong light, such as direct sunlight or light from an extremely close range (such as from an  
inverter fluorescent lamp), hits the projector's remote sensor, the remote control may cease to function.  
Adjust the direction of the projector to keep light from directly hitting the projector's remote sensor.  
14  
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3M™ Multimedia Projector MP8790  
TURNING ON THE POWER  
Precautions  
～
8
12  
Connect all devices to be used to the projector prior to turning on the power.  
WARNING When the power is ON, a strong light is emitted. Do not look into the  
lens.  
Make sure that the power cord is firmly and  
correctly connected to the projector and outlet  
LASER  
INDICATOR  
1
STANDBY/ON VIDEO  
RGB  
3
UP  
FOCUS  
BLANK  
ZOOM  
PAGE  
DOWN  
Turn on the projector's power  
Set the power switch to [ | ] (ON). The STANDBY/ON  
indicator will light to solid orange.  
LASER  
2
power switch  
Control panel  
STANDBY/ON indicator  
Press the STANDBY/ON button (control  
panel or remote control)  
3
4
• The projector begins warming up and the  
STANDBY/ON indicator blinks green.  
STANDBY/ON  
• The STANDBY/ON indicator stops blinking  
and lights to solid green once the  
projector's power is completely on.  
NOTE  
Turn the  
power on/off in  
right order.  
Remove the lens cap  
The picture is projected.  
• Power on the  
projector before the  
computer or video  
tape recorder.  
• Power off the  
projector after the  
computer or video  
tape recorder.  
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15  
3M™ Multimedia Projector MP8790  
TURNING ON THE POWER (continued)  
Selecting an Input Signal  
Using the remote control  
Using the projector's control panel  
5
If selecting RGB input  
Press the RGB button  
Press this button to toggle between the devices  
connected to RGB IN 1 and 2. As illustrated  
below, each time you press the RGB button, the  
projector switches between RGB IN 1 and 2.  
Select the signal you wish to project.  
Turn the INPUT dial  
Turning the dial cycles  
through the inputs as  
shown below. Select the  
terminal to which the signal  
you want to project is input.  
•
When BNC (RGB) is selected:  
•
When BNC (RGB) is selected:  
RGB  
RGB  
BNC(RGB)  
DVI  
RGB BNC(RGB) DVI  
COMPONENT VIDEO  
S-VIDEO  
VIDEO  
•
When BNC (COMPONENT) is selected:  
•
When BNC (COMPONENT) is selected:  
RGB DVI  
RGB  
BNC(COMPONENT)  
DVI  
If selecting video input  
Press the VIDEO button  
Press this button to toggle between the  
devices connected to VIDEO IN, S-VIDEO  
IN and COMPONENT VIDEO. As  
COMPONENT VIDEO  
S-VIDEO  
VIDEO  
VIDEO  
NOTE  
Turn the INPUT dial and set it at the  
click point, otherwise input signal  
selection may be incorrect.  
illustrated below, each time you press the  
VIDEO button, the projector switches between  
VIDEO IN, S-VIDEO IN and COMPONENT VIDEO.  
Select the signal you wish to project.  
•
When BNC (RGB) is selected:  
VIDEO IN  
S-VIDEO IN  
COMPONENT VIDEO  
•
When BNC (COMPONENT) is selected:  
VIDEO IN  
S-VIDEO IN  
COMPONENT VIDEO  
BNC(COMPONENT)  
ZOOM  
Use the ZOOM  
the screen size  
/
buttons to adjust  
6
7
ZOOM  
(Control panel)  
(Remote control)  
FOCUS  
Use the FOCUS  
the focus  
/
buttons to adjust  
FOCUS  
(Control panel)  
(Remote control)  
16  
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3M™ Multimedia Projector MP8790  
TURNING OFF THE POWER  
Press the STANDBY/ON button (control  
LASER  
INDICATOR  
1
panel or remote control)  
The message "Power off?" will appear on the screen for  
approximately 5 seconds.  
STANDBY/ON VIDEO  
RGB  
STANDBY/ON  
UP  
FOCUS  
BLANK  
ZOOM  
PAGE  
DOWN  
LASER  
Press the STANDBY/ON button again  
(control panel or remote control)  
Press the STANDBY/ON button again while the "Power off?"  
message is visible. The projector lamp goes off and starts cooling  
down. While cooling, the STANDBY/ON indicator flashes orange.  
When in this state, pressing the STANDBY/ON button has no  
effect.  
2
ASPECT  
PUSH  
ENTER  
ESC  
MENU  
AUTO  
RESET  
PinP  
When lamp cooling is complete, the STANDBY/ON indicator stops  
flashing, and turning solid orange.  
POSITION  
MAGNIFY  
ON  
VOLUME  
MUTE  
FREEZE  
STANDBY/ON  
OFF  
WIRELESS  
KEYSTONE ONE TOUCH  
Control panel  
Check that the STANDBY/ON indicator  
stops blinking and lights to  
solid orange.  
Switch the power switch to  
[O] (OFF).  
3
4
power switch  
STANDBY/ON indicator  
Confirm that the STANDBY/ON indicator has  
gone off and then attach the lens cap.  
When the projector has completed powering down, the  
STANDBY/ON indicator will go off.  
NOTE  
•
Except in cases of  
emergency, do not turn off  
the power switch while the  
STANDBY/ON indicator is  
solid or flashing green.  
Doing so could shorten  
the lamp lifetime.  
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17  
3M™ Multimedia Projector MP8790  
ADJUSTING THE VOLUME  
VOLUME  
Press the VOLUME button  
LASER  
INDICATOR  
1
As illustrated on the right, a dialog will  
STANDBY/ON VIDEO  
RGB  
appear on the screen to aid you in adjusting  
the volume.  
UP  
VOLUME  
FOCUS  
BLANK  
ZOOM  
PAGE  
DOWN  
LASER  
16  
2
Use the lever switch  
volume  
/
to adjust the  
ASPECT  
Press the VOLUME button again to close the dialog and  
complete this operation. (Even if you don't do anything, the  
dialog will automatically disappear after a few seconds.)  
PUSH  
ENTER  
ESC  
MENU  
AUTO  
RESET  
PinP  
POSITION  
VOLUME  
MAGNIFY  
ON  
VOLUME  
MUTE  
FREEZE  
Press this to increase the volume  
Press this to decrease the volume  
OFF  
WIRELESS  
KEYSTONE ONE TOUCH  
16  
TEMPORARILY MUTING THE SOUND  
DOWN  
Press the MUTE button  
1
BLANK  
LASER  
As illustrated on the right, a dialog will appear on the  
screen indicating that you have muted the sound. Press  
the VOLUME button to close the dialog. (Even if you don't  
do anything, the dialog will automatically disappear after  
a few seconds.)  
ASPECT  
Press the MUTE button again to restore the sound.  
PUSH  
ENTER  
VOLUME  
ESC  
MENU  
AUTO  
RESET  
PinP  
MUTE  
POSITION  
MAGNIFY  
ON  
VOLUME  
MUTE  
FREEZE  
OFF  
WIRELESS  
KEYSTONE ONE TOUCH  
16  
18  
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3M™ Multimedia Projector MP8790  
ADJUSTING THE POSITION  
Press the POSITION button  
As illustrated on the right, a dialog will appear on the screen to  
aid you in adjusting the position.  
LASER  
INDICATOR  
1
STANDBY/ON VIDEO  
RGB  
UP  
FOCUS  
BLANK  
ZOOM  
PAGE  
DOWN  
LASER  
POSITION  
POSITION  
ASPECT  
2 Use the  
,
,
,
buttons to adjust the  
PUSH  
ENTER  
position  
ESC  
MENU  
AUTO  
RESET  
PinP  
When you want to initialize the position, press the RESET  
button during adjustment.  
Press the POSITION button again to close the dialog and  
complete this operation. (Even if you don't do anything, the  
dialog will automatically disappear after a few seconds.)  
This function is only available for RGB/BNC (RGB) input.  
POSITION  
MAGNIFY  
ON  
VOLUME  
MUTE  
FREEZE  
OFF  
WIRELESS  
KEYSTONE ONE TOUCH  
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19  
3M™ Multimedia Projector MP8790  
USING THE AUTOMATIC ADJUSTMENT FEATURE  
Press the AUTO button  
BLANK  
LASER  
1
AUTO  
ASPECT  
Automatic Adjustment for RGB Input  
Horizontal position (H. POSIT), vertical position (V.  
POSIT), clock phase (H. PHASE) and horizontal size (H.  
SIZE) are automatically adjusted.  
Make sure that the application window is set to its  
maximum size prior to attempting to use this feature.  
Dark pictures may still be incorrectly adjusted. Use a  
bright screen when adjusting.  
PUSH  
ENTER  
ESC  
MENU  
AUTO  
RESET  
PinP  
POSITION  
MAGNIFY  
ON  
VOLUME  
MUTE  
FREEZE  
OFF  
WIRELESS  
KEYSTONE ONE TOUCH  
Automatic Adjustment for Video Input  
The signal type best suited for the respective input  
signal is selected automatically.  
This feature is available only if VIDEO is set to AUTO in  
the INPUT menu.  
NOTE  
The automatic adjustment operation requires approximately 10 seconds. Also, please  
note that it may not function correctly with some input signals.  
20  
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3M™ Multimedia Projector MP8790  
CORRECTING KEYSTONE DISTORTIONS  
Press the KEYSTONE button  
KEYSTONE  
1
As illustrated on the right, a dialog will appear  
on the screen to aid you in correcting the  
distortion.  
ASPECT  
KEYSTONE  
PUSH  
ENTER  
16  
ESC  
MENU  
AUTO  
RESET  
PinP  
POSITION  
MAGNIFY  
ON  
VOLUME  
MUTE  
Use the  
,
buttons to select the  
FREEZE  
2
3
OFF  
direction of distortion to correct (  
/
)
WIRELESS  
KEYSTONE ONE TOUCH  
Use the lever switch /  
distortion  
to correct  
Press the KEYSTONE button again to close the dialog and  
complete this operation. (Even if you don't do anything, the  
dialog will automatically disappear after a few seconds.)  
NOTE  
• This function may not be work well with some types of input signals.  
• The adjustable range for correcting keystone distortions will vary with the type of  
input signal.  
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21  
3M™ Multimedia Projector MP8790  
USING THE MAGNIFY FEATURE  
MAGNIFY  
ON  
DOWN  
Press the MAGNIFY (ON) button  
The projector enters MAGNIFY mode.  
1
BLANK  
LASER  
Press the POSITION button, then use the lever switch  
to select the area to zoom. Press the  
POSITION button again to finalize the zoom area.  
2
/
,
/
ASPECT  
PUSH  
ENTER  
POSITION  
POSITION  
ESC  
MENU  
AUTO  
RESET  
PinP  
POSITION  
MAGNIFY  
ON  
VOLUME  
MUTE  
FREEZE  
OFF  
Use the lever switch  
zoom level  
/
to adjust the  
WIRELESS  
KEYSTONE ONE TOUCH  
3
Press the MAGNIFY (OFF) button to exit MAGNIFY mode  
and restore the screen to normal. (The projector will also  
automatically exit MAGNIFY mode if there is a change in the  
input signal's state.)  
NOTE  
The projector will automatically exit from MAGNIFY mode if either the INPUT SELECT,  
AUTO, ASPECT or VIDEO feature is used, or, if there is a change in the input signal's state.  
FREEZING THE SCREEN  
Press the FREEZE button  
PUSH  
ENTER  
1
FREEZE  
The [II] icon appears and the screen will freeze at  
ESC  
MENU  
AUTO  
RESET  
PinP  
the current image. Press the FREEZE button again  
and the [ ] appears as the projector exits FREEZE  
mode.  
POSITION  
MAGNIFY  
ON  
VOLUME  
MUTE  
FREEZE  
OFF  
WIRELESS  
KEYSTONE ONE TOUCH  
NOTE  
•
•
The projector will automatically exit from FREEZE mode if either the POSITION, VOLUME, MUTE, AUTO,  
BLANK ON/OFF or MENU ON/OFF feature is used, or, if there is a change in the input signal's state.  
If the projector continues projecting the same image for a long time (i.e. you forget to exit FREEZE mode),  
the image might possibly remain as an afterimage. Do not leave the projector in FREEZE mode for too long.  
22  
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ADJUSTING SCREEN WITH ONE-TOUCH  
FOCUS  
ZOOM  
PAGE  
DOWN  
ONE TOUCH  
Press the ONE TOUCH button  
You can activate the following functions just by  
pressing the ONE TOUCH button:  
1
BLANK  
LASER  
(1) Signal search: Cycle through input signals, displaying  
the images of retrieved signals. If no signal is found,  
returns to the signal that was selected before the search  
was begun.  
ASPECT  
•
When BNC (RGB) is selected:  
PUSH  
ENTER  
RGB  
BNC(RGB)  
DVI  
ESC  
MENU  
AUTO  
RESET  
PinP  
POSITION  
COMPONENT VIDEO  
S-VIDEO  
VIDEO  
MAGNIFY  
ON  
VOLUME  
MUTE  
•
When BNC (COMPONENT) is selected:  
FREEZE  
OFF  
RGB  
BNC(COMPONENT)  
DVI  
WIRELESS  
KEYSTONE ONE TOUCH  
COMPONENT VIDEO  
S-VIDEO  
VIDEO  
(2) Automatic adjustment: In RGB mode, automatically  
adjust the picture position and size; for VIDEO input,  
20  
automatically select the signal mode. (  
)
(3) Automatic keystone distortion correction: This is only  
performed if ONE TOUCH of the AUTO menu is set to  
TURN ON. When performed, the unit automatically corrects  
vertical keystone distortion due to the (forward/backward)  
29  
setup angle of the main unit. (  
)
NOTES  
• May not function properly with some input signals.  
• This function takes about 10 seconds to display an image.  
23  
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SELECTING THE ASPECT RATIO  
DOWN  
Press the ASPECT button  
1
RGB, DVI, COMPONENT VIDEO  
BLANK  
LASER  
ASPECT  
(HDTV signals : 1125i (1035i/1080i), 750p)  
4:3 16:9  
VIDEO IN, S-VIDEO IN, COMPONENT VIDEO  
(Non-HDTV signals : 525i, 525p,625i)  
ASPECT  
4:3  
16:9  
SMALL  
PUSH  
ENTER  
ESC  
MENU  
AUTO  
RESET  
PinP  
POSITION  
TEMPORARILY BLANKING THE SCREEN  
UP  
Press the BLANK button  
FOCUS  
ZOOM  
PAGE  
DOWN  
1
The input signal screen is shut off, and a blank screen  
appears. You can set the blank screen using the menu  
(from the SCREEN menu, select BLANK). Press the BLANK  
button again to remove the blank screen, and return to the  
input signal screen.  
BLANK  
LASER  
ASPECT  
BLANK  
PUSH  
ENTER  
ESC  
MENU  
RESET  
DISPLAYING CHILD WINDOW (P. IN. P: Picture in Picture)  
Press the P. in P. Button  
1
You can display the video input in a child window while  
ASPECT  
displaying RGB, BNC, or DVI input.  
Display child window  
(small)  
Display child window  
(large)  
PUSH  
ENTER  
No display  
ESC  
MENU  
AUTO  
RESET  
PinP  
POSITION  
You can select the video input to display in the child  
window, and the position of the child window, from the  
MAGNIFY  
ON  
VOLUME  
MUTE  
28  
INPUT menu. (  
)
FREEZE  
OFF  
WIRELESS  
KEYSTONE ONE TOUCH  
24  
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USING THE MENU FUNCTIONS  
MENU  
Press the MENU button  
The menu display appears on the screen. The projector  
LASER  
INDICATOR  
1
STANDBY/ON VIDEO  
RGB  
has the following menus: MAIN, PICTURE-1, PICTURE-2,  
INPUT, AUTO, SCREEN, and OPTION, WIRELESS. When  
UP  
FOCUS  
BLANK  
ZOOM  
PAGE  
DOWN  
you select a menu name using the lever switch  
/
, the  
current settings of items that can be manipulated from that menu are displayed.  
LASER  
Use the lever switch  
/
to select a menu, then  
2
3
press the  
or ENTER button  
The display of the selected menu appears.  
ASPECT  
[ex. Adjusting SHARPNESS]  
Use the lever switch  
or ENTER button.  
/
to select PICTURE-1, then press the  
PUSH  
ENTER  
MENU  
ESC  
MENU  
AUTO  
RESET  
PinP  
MAIN  
COLOR BAL R  
COLOR BAL B  
SHARPNESS  
COLOR  
–1  
+1  
–1  
+1  
–1  
PICTURE-1  
PICTURE-2  
INPUT  
POSITION  
AUTO  
TINT  
MAGNIFY  
ON  
VOLUME  
MUTE  
SCREEN  
OPTION  
WIRELESS  
: SELECT  
PUSH  
FREEZE  
ENTER  
OFF  
WIRELESS  
KEYSTONE ONE TOUCH  
Use the lever switch  
/
to select SHARPNESS,  
then press the  
The operation display of the selected item appears. To  
or ENTER button  
adjust a numerical value, press the  
or ENTER button  
again to switch to the single menu (small display showing  
only the operation display area).  
[ex. Adjusting SHARPNESS]  
Use the lever switch  
/
to select SHARPNESS, then  
press the  
or ENTER button.  
MENU  
MAIN  
COLOR BAL R  
COLOR BAL B  
SHARPNESS  
COLOR  
PICTURE-1  
PICTURE-2  
INPUT  
AUTO  
TINT  
SCREEN  
OPTION  
WIRELESS  
: SELECT  
PUSH  
ENTER  
0
Use the lever switch  
/
to adjust the level  
4
NOTE  
Press the MENU button to hide the menu and finish your  
•
For details about menu  
operations, see "MULTI  
FUNCTIONAL  
operation. Alternatively, press the  
return to the previous display.  
[ex. Adjusting SHARPNESS]  
or ESC button to  
26  
SETTINGS" (  
).  
Use the lever switch  
/
to adjust the sharpness.  
25  
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3M™ Multimedia Projector MP8790  
MULTIFUNCTIONAL SETTINGS  
This device has 8 separate menus: MAIN, PICTURE-1, PICTURE-2, INPUT,  
AUTO, SCREEN, OPTION, WIRELESS. Each of these menus is operated using  
the same methods. The basic operations of these menus are as follows.  
Menu screen display : Press the MENU button.  
Menu selection  
: Use the lever switch  
to select a menu name, then press the  
or ENTER button.  
Item selection  
: Use the lever switch  
ENTER button.  
to select an item, then press the  
or  
Return menu to last previous screen: Press the  
Execution of settings and/or adjustments  
button or the ESC button.  
Perform the operation using the lever switch  
:
.
(For further details, read the explanation for each separate menu.)  
I
nitialization of settings and/or adjustments: During operation, press the RESET button.  
(Functions that are executed at the same time  
as a selection, including H PHASE, LANGUAGE  
selection, and ADJUST, will not be reset.)  
End menu operations: Press the MENU button, or do not perform any operation for  
several seconds.  
MENU  
MAIN  
BRIGHT  
CONTRAST  
ASPECT  
PICT. POSIT.  
GAMMA  
MIRROR  
MAIN Menu  
PICTURE-1  
PICTURE-2  
INPUT  
With the MAIN menu, the seven items shown in the Table below can be  
performed.  
Perform each operation in accordance with the instructions in the Table.  
AUTO  
SCREEN  
OPTION  
WIRELESS  
: SELECT  
LANGUAGE  
12  
Example : MAIN Menu  
(BRIGHT)  
MAIN Menu  
Item  
Description  
Dark  
BRIGHT  
Adjust Brightness: Light  
CONTRAST  
Adjust Contrast: Strong  
Weak  
Select Aspect Ratio:  
At RGB Input or Hi-Vision 1125i(1035i/1080i)/750p of COMPONENT VIDEO  
Input:  
ASPECT  
4:3  
At VIDEO Input, S-VIDEO Input or 525i/525p/625i of COMPONENT VIDEO Input:  
4:3 16:9 SMALL  
16:9  
• The SMALL picture may not be displayed correctly with certain input signals.  
Select Picture Position (for 16:9/SMALL Picture):  
PICT.POSIT.  
GAMMA  
TOP  
CENTER  
BOTTOM  
DYNAMIC  
V:INVERT  
Select Gamma Mode:  
NORMAL  
CINEMA  
Select Mirror Status:  
MIRROR  
NORMAL  
H:INVERT  
H&V:INVERT  
ESPAÑOL  
Select Menu Language:  
ENGLISH  
FRANÇAIS  
NORSK  
DEUTSCH  
NEDERLANDS  
LANGUAGE  
ITALIANO  
POTUGUÊS  
26  
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3M™ Multimedia Projector MP8790  
MENU  
MAIN  
COLOR BAL R  
COLOR BAL B  
SHARPNESS  
COLOR  
PICTURE-1 Menu  
PICTURE-1  
PICTURE-2  
INPUT  
AUTO  
TINT  
With the PICTURE-1 menu, the five items shown in the Table  
below can be performed.  
Perform each operation in accordance with the instructions in the  
Table.  
SCREEN  
OPTION  
WIRELESS  
: SELECT  
12  
Example : PICTURE1 Menu  
(COLOR BAL R)  
PICTURE-1 Menu  
Item  
Description  
Adjust Red Color Balance: Dark  
Adjust Blue Color Balance: Dark  
COLOR BAL R  
Light  
Light  
COLOR BAL B  
SHARPNESS  
Adjust Sharpness (for VIDEO/S-VIDEO): Clear  
Soft  
Adjust COLOR (for VIDEO/S-VIDEO/COMPONENT VIDEO):  
Dark Light  
COLOR  
TINT  
Adjust Tint (for VIDEO/S-VIDEO): Green  
Red  
MENU  
MAIN  
V POSITION  
H POSITION  
H PHASE  
PICTURE-2 Menu  
PICTURE-1  
PICTURE-2  
INPUT  
H SIZE  
AUTO  
OVER SCAN  
With the PICTURE-2 menu, the five items shown in the Table  
below can be performed.  
Perform each operation in accordance with the instructions in the  
Table.  
SCREEN  
OPTION  
WIRELESS  
: SELECT  
12  
Example : PICTURE2 Menu  
(V POSITION)  
PICTURE-2 Menu  
Item  
Description  
Adjust Vertical Position (for RGB): Up  
Adjust Horizontal Position (for RGB): Left  
Adjust Horizontal Phase (for RGB/COMPONENT VIDEO):  
V POSITION  
H POSITION  
Down  
Right  
H PHASE  
H SIZE  
Right Left  
• Adjust to eliminate flicker.  
Adjust Horizontal Size (for RGB): Large  
• If the horizontal size adjustment is excessive, the image may not be displayed  
correctly. In such a case, initialize H SIZE with the RESET button.  
Small  
Select Over-scan Ratio (for VIDEO/S-VIDEO/COMPONENT VIDEO):  
LARGE  
MIDDLE  
SMALL  
OVER SCAN  
• If you select LARGE, you may note streaking on the top and bottom of the  
screen, or flicker. If this is irritating, we suggest you select SMALL.  
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27  
MULTIFUNCTIONAL SETTINGS (continued)  
MENU  
MAIN  
PICTURE-1  
PICTURE-2  
INPUT  
AUTO  
BNC  
VIDEO  
HDTV  
SYNC ON G  
P. IN P. INPUT  
P. IN P. POSIT  
RGB  
COMPONENT  
INPUT Menu  
The three Input menu items listed in the table below can be manipulated. For  
SCREEN  
RGB input, the reception signal’s horizontal and vertical frequency is displayed  
OPTION  
WIRELESS  
on the initial menu screen. Use the table below as a guide for operation.  
: SELECT  
Example : INPUT Menu  
(BNC)  
INPUT Menu  
Item  
Description  
BNC Pin (R/CR/PR, G/Y, B/CB/PB, H, V) function selection:  
BNC (RGB)  
(R) (G) (B) (H) (V)  
(Pins for RGB)  
BNC (COMPONENT)  
(CR/PR) (Y) (CB/PB) ( - ) ( - )  
(Pins for COMPONENT)  
BNC  
Selecting BNC (RGB) allows the 5 RGB2 pins (R/CR/PR, G/Y, B/CB/PB, H, V) to be  
used as RGB signal BNC input as-is.  
Selecting BNC (COMPONENT) allows the 3 leftmost RGB2 pins (R/CR/PR, G/Y,  
B/CB/PB) to be used as the COMPONENT VIDEO input CR/PR, Y, and CB/PB pins.  
Select Mode of Signal Type (for VIDEO/S-VIDEO):  
AUTO  
NTSC  
PAL  
SECAM  
NTSC4.43  
M-PAL  
N-PAL  
When AUTO is selected, the video/ S-video input function under ADJUST (  
are enabled, and is  
29  
executed simultaneously so that the optimum signal mode is selected from among the modes listed above.  
VIDEO  
Use this function if the image becomes unstable with VIDEO/S-VIDEO. (e.g. The image becomes irregular, or lacks color.)  
•
AUTO mode may not function correctly with a PAL60 signal and certain other signals.  
• The AUTO mode operation requires approximately 10 seconds.  
• For COMPONENT VIDEO, the signal type is identified automatically even if  
this function is inactive. For a HDTV signal, refer to the item HDTV below.  
Select HDTV Signal Mode: 1080i  
1035i  
HDTV  
•
If the selected HDTV mode is incompatible with the input signal, the picture may be distorted.  
On/Off SYNC ON G Mode: TURN ON  
TURN OFF  
Selecting TURN ON turns on the SYNC ON G mode. The SYNC ON G mode  
allows reception of SYNC on G.  
SYNC ON G  
• In the SYNC ON G mode, the picture may be distorted with certain input  
signals. In such a case, remove the signal connector so that no signal is  
received and turn SYNC ON G off, and then reconnect the signal.  
P. IN P. screen (*) input signal selection: VIDEO  
Selects the signal displayed on the P. IN P. subscreen.  
S-VIDEO  
P. IN P. INPUT  
P. IN P. POSIT  
P. IN P. screen (*) display position selection:  
Selects the position at which the P. IN P. subscreen is displayed.  
(*) The P. IN P. (picture-in-picture) function displays the video signal image in a subscreen (P. IN P. screen) on  
top of the screen on which the RGB signal image is being displayed. (See “Displaying Child Window” .)  
24  
28  
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3M™ Multimedia Projector MP8790  
MENU  
MAIN  
ADJUST  
EXECUTE  
AUTO Menu  
PICTURE-1  
PICTURE-2  
INPUT  
KEYSTONE  
POWER OFF  
ONE TOUCH  
AUTO  
With the AUTO menu, the four items shown in the Table below can  
be performed.  
Please perform each operation in accordance with the instructions  
in the Table.  
SCREEN  
OPTION  
WIRELESS  
: SELECT  
Example : AUTO Menu  
(ADJUST)  
AUTO Menu  
Item  
Description  
Auto Adjust (for RGB): Automatically adjusts H POSITION, V POSITION, H  
PHASE, and H SIZE. Use this function with the maximum window size.  
Auto Adjust (for VIDEO/S-VIDEO): This function automatically selects the  
appropriate signal mode depending on input signals. This is only performed if  
AUTO is selected on the VIDEO menu item ( 28 ) of the INPUT menu.  
• This function may not be available with a PAL60 signal and certain other  
signals.  
ADJUST  
• The AUTO mode operation requires approximately 10 seconds.  
•
For COMPONENT VIDEO, the signal type is identified automatically even if this  
function is inactive. For more information on HDTV signals, see HDTV. (  
)
28  
Automatic keystone distortion correction:  
You can automatically correct vertical keystone distortion corresponding to the  
angle (forward/backward tilt) at which the unit is set up.  
• If the projection screen is inclined, or if the projector is angled downwards, it  
may not be possible to make the correct adjustment when V: INVERT or H&V:  
INVERT is selected under the MIRROR item of the MAIN menu.  
• When the zoom adjustment is set to the TELE side, automatic correction may  
be excessive. The automatic correction function should be used with zoom  
set to WIDE whenever possible.  
KEYSTONE  
Adjust POWER OFF Time:  
Long (MAX. 99 min.)  
Short (Min. 1 min.)  
(DISABLE: 0 min.)  
If the time set here passes without valid signal input (there is no signal input, or  
signal input is out of specifications), the standby mode is set (see "TURNING  
POWER OFF  
ON THE POWER"  
selected.  
). This function is inactive when DISABLE (0 min.) is  
15  
Enabling/disabling the KEYSTONE  
button:  
function using the ONE TOUCH  
TURN ON  
TURN OFF  
Pressing the ONE TOUCH button will automatically retrieve pictures and  
automatically adjust the screen (see “ADJUSTING SCREEN WITH ONE-  
TOUCH” 23 ), and you can also set the function to execute KEYSTONE  
(see above in this table) simultaneously when pressed. KEYSTONE will be  
executed if TURN ON is selected.  
ONE TOUCH  
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29  
3M™ Multimedia Projector MP8790  
MULTIFUNCTIONAL SETTINGS (continued)  
MENU  
MAIN  
PICTURE-1  
PICTURE-2  
INPUT  
AUTO  
SCREEN  
OPTION  
WIRELESS  
: SELECT  
BLANK  
START UP  
MyScreen  
MyScreen Size  
MyScreen Lock  
MyScreen  
ORIGINAL  
SCREEN Menu  
With the SCREEN menu, the five items shown in the Table below can be performed.  
Please perform each operation in accordance with the instructions in the Table.  
Example : SCREEN Menu  
(BLANK)  
SCREEN Menu  
Item  
Description  
Selection of BLANK Screen:  
MyScreen  
ORIGINAL  
.
.
.
.
.
.
The BLANK Screen may be voluntarily selected. The BLANK Screen is displayed when the screen  
has been erased (i.e., made to vanish) by manipulating the BLANK button (please refer to the  
“Temporarily Blanking the Screen” section).  
BLANK  
MyScreen: Using the MyScreen category (see this Table, below), one can register a desired screen  
(or screens). At the time of factory shipment, this is set as a non-patterned (plain) blue color screen.  
ORIGINAL: Existing standard screens. Please make confirmation using the actual screen(s).  
Option screens: Various colored non-patterned (plain) screens displayed within the Menus.  
•
The MyScreen and the ORIGINAL Screen will each change to a non-patterned (plain) black color  
screen several minutes after being displayed.  
Selection of START UP Screen: MyScreen  
ORIGINAL  
TURN OFF  
The START UP Screen may be voluntarily selected. The START UP Screen is displayed when  
no signal has been inputted, or when spec signals are being inputted.  
MyScreen: Using the MyScreen category (see this Table, below), one can register a desired screen  
(or screens). At the time of factory shipment, this is set as a non-patterned (plain) blue color screen.  
ORIGINAL: Existing standard screens. Please make confirmation using the actual screen(s).  
TURN OFF: A non-patterned (plain) blue color screen.  
START UP  
•
The MyScreen and ORIGINAL screens will switch to the BLANK screen (see above in this  
table) a few minutes after being displayed. If the BLANK screen is the MyScreen or  
ORIGINAL screen, it will turn immediately to a solid black screen.  
Registration of MyScreen:  
When this item is executed, the MyScreen Menu for registration of MyScreen for the BLANK Screen  
and the START UP Screen is displayed. When operations are performed in accordance with this Menu,  
one can “cut” and register desired screens from among the received images within the display.  
1. After the “Do you start capturing this picture?” message has been displayed, pressing the ESC (or  
RESET) button interrupts execution of the MyScreen. When the ENTER button is pressed, the picture  
becomes static (no longer moves), and a frame for picture cutting, as well as the message that follows  
below, appear. Please press the button when the screen you want to register is currently being displayed.  
2. When the “Move the capture area as you want.” message has been displayed, pressing the ESC (or RESET)  
button will eliminate the static state of the picture, and operations can be performed again from operation 1.  
MyScreen  
The frame can be moved using the  
buttons. After designating the screen you  
want to register, pressing the ENTER button will initiate screen registration. The registration  
process takes approximately 1 minute to complete.  
3. When the registration has been completed, the screen of the registered MyScreen, plus the  
message, “MyScreen registration is finished,” will be displayed for several seconds, after which  
the operation is terminated.  
MyScreen Size  
MyScreen Lock  
Selection of MyScreen display size: x1  
FULL  
Invalidation of MyScreen registration function: TURN ON  
When TURN ON is selected, the MyScreen category (see this Table, above) cannot be executed; in  
this way, one can prohibit rewrites (“writeovers”) of the MyScreen.  
TURN OFF  
30  
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3M™ Multimedia Projector MP8790  
MENU  
MAIN  
VOLUME  
OPTION Menu  
PICTURE-1  
PICTURE-2  
INPUT  
WHISPER  
IR REMOTE  
LAMP TIME  
FILTER TIME  
With the OPTION menu, the five items shown in the Table below can  
be performed.  
Please perform each operation in accordance with the instructions in  
the Table.  
AUTO  
SCREEN  
OPTION  
WIRELESS  
: SELECT  
12  
Example : OPTION Menu  
(VOLUME)  
OPTION Menu  
Item  
Description  
Low  
VOLUME  
Adjust Volume: High  
Select WHISPER Mode:  
NORMAL  
WHISPER  
WHISPER  
When WHISPER is selected the WHISPER mode is activated. In the WHISPER  
mode, acoustic noise and screen brightness are reduced.  
2
Selecting the remote control receiver:  
3
The unit has 3 remote control receivers, as shown in the figure  
to the right (1, 2, and 3). You can select which of them to  
activate (“v” in the figure), and which to disable.  
• The ambient lighting and other factors may prevent the  
remote control operation from functioning properly. If this  
happens, use this function to disable receivers being  
impacted by unneeded light.  
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
3
3
3
3
3
3
3
IR REMOTE  
Refer to LAMP TIME: When set, this function displays the total time the  
projector lamp has been used since new.  
Reset LAMP TIME [Use this function only when the lamp has been replaced!]:  
Depress the RESET button for at least 3 seconds while lamp time is being  
displayed. The reset menu will then appear. After you replace the lamp with a  
new lamp, select RESET on the menu with the button.  
LAMP TIME  
• Do not reset the lamp time unless you have replaced the lamp. And, always  
reset the lamp time when replacing the lamp. The message functions will not  
operate properly if the lamp time is not reset correctly.  
•
Before replacing the lamp, carefully read the descriptions headed "THE LAMP".  
Refer to FILTER TIME: This function displays the total time the air-filter has  
been used since new.  
Reset FILTER TIME [Use this function only when the filter is cleaned or replaced!]:  
Depress the RESET button for at least 3 seconds while lamp time is being  
displayed. The reset menu will then appear. After you replace the filter, select  
RESET on the menu with the button.  
FILTER TIME  
RESET  
CANCEL  
• Do not reset the filter time unless you have cleaned or replaced the filter. And,  
always reset the filter time when cleaning or replacing the filter. The message  
functions will not operate properly if the filter time is not reset correctly.  
•
Before cleaning or replacing the filter, carefully read the descriptions headed "THE AIR FILTER".  
WIRELESS Menu  
The WIRELESS menu is only enabled if the wireless function is enabled. Using the  
wireless function requires a Wireless & Network Module Terminal (sold separately). See  
the Wireless & Network Module Terminal user’s manual for more information about the  
WIRELESS menu. Contact your local dealer for more information about the wireless  
function and Wireless & Network Module Terminal.  
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31  
3M™ Multimedia Projector MP8790  
OPERATING THE PC SCREEN  
You can use the remote control as a simplified mouse or keyboard.  
CAUTION Caution: Mistaken use of the mouse/keyboard control could damage your equipment.  
•
•
•
Only connect to a PC.  
Before connecting, read the manuals of the device you will connect.  
Do not unplug the connector cables while the computer is operating.  
LASER  
INDICATOR  
PS/2, ADB, Serial Mouse Control  
STANDBY/ON VIDEO  
RGB  
1. Turn off the projector and PC power, and connect the projector’s  
CONTROL terminal to the computer via the mouse cable.  
UP  
2. If a USB cable is connected, disconnect it. If a USB cable is connected, the USB control  
function is given priority, and mouse control from the CONTROL terminal will not function.  
3. Turn on the projector power, then the computer.  
The functions in the table below can be controlled. If you have difficulty with control,  
restart the computer (either from the software or by pressing the restart button).  
FOCUS  
BLANK  
ZOOM  
PAGE  
DOWN  
LASER  
Available Functions  
Remote Control Operation  
Move Pointer  
Move using  
Press the center  
Press the right mouse button  
on the disk pad  
ASPECT  
Left click with mouse  
Right click with mouse  
of the disk pad  
PUSH  
ENTER  
ESC  
MENU  
AUTO  
RESET  
PinP  
USB Mouse/Keyboard Control  
POSITION  
1. Connect the projector’s USB terminal to a PC using a USB cable.  
The functions in the table below can be controlled.  
MAGNIFY  
ON  
VOLUME  
MUTE  
FREEZE  
OFF  
Available Functions  
Remote Control Operation  
WIRELESS  
KEYSTONE ONE TOUCH  
Move Pointer  
Move using  
Press the center  
on the disk pad  
of the disk pad  
Left click with mouse  
Right click with mouse  
Press the right mouse button  
Press  
Press the keyboard’s  
keys  
Press the keyboard’s ENTER key  
Press keyboard’s PAGE UP key  
Press keyboard’s PAGE DOWN key  
Press keyboard’s ESC key  
Press the ENTER button  
Press PAGE UP button  
Press PAGE DOWN button  
Press ESC button  
NOTES  
•
It may not be possible to control notebook PCs, and other computers with built-in pointing devices (e.g.  
track balls), using this remote control. In this case, before connecting go into BIOS (system setup) and  
select external mouse, and disable the pointing devices. In addition, the mouse may not function if the  
computer does not have the needed utility program. See your computer’s hardware manual for details.  
The USB control can be used with Windows 95 OSR 2.1 or higher. It may not be possible to  
use the remote control, depending on the computer’s configurations and mouse drivers.  
The USB control can only be used for the functions listed above. You cannot do things like press two buttons  
at once (for instance, pressing two buttons at the same time to move the mouse pointer diagonally).  
This function is not available while the lamp is warming up (the POWER indicator flashes green), while adjusting the volume and  
display, correcting for trapezoidal distortion, zooming in on the screen, using the BLANK function, or displaying the menu screen.  
•
•
•
32  
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3M™ Multimedia Projector MP8790  
THE LAMP  
HIGH VOLTAGE  
HIGH TEMPERATURE  
HIGH PRESSURE  
To replace the lamp, check the model number of the replacement lamp (sold separately) and  
contact your local dealer.  
Replacement lamp model number: 78-6969-9601-2  
If the projector is mounted on the ceiling, or if the lamp has broken, ask your dealer to replace the  
lamp. Lamp replacement is hazardous and should not be attempted by the user.  
Before replacing the lamp, make sure the power switch is off and the power cable is not plugged in,  
then wait at least 45 minutes for the lamp to cool sufficiently. Handling the lamp while hot can cause  
burns, as well as damaging the lamp.  
The LCD projector uses a glass lamp bulb. It is a mercury lamp with high  
WARNING  
internal pressure. High-pressure mercury lamps can break with a loud  
bang, or burn out, if jolted or scratched, or through wear over time. Each lamp has a  
different lifetime, and some may burst or burn out soon after you start using them. In  
addition, when the bulb bursts, it is possible for shards of glass to fly into the lamp housing,  
and for gas containing mercury to escape from the projector’s vent holes.  
•
Do not open the lamp cover while the projector is suspended from above. This is  
dangerous, since if the lamp’s bulb has broken, the shards will fall out when the cover is  
opened. In addition, working in high places is dangerous, so ask your local dealer to have  
the lamp replaced even if the bulb is not broken.  
•
•
Handle with care: jolting or scratching could cause the lamp bulb to burst during use.  
38  
If the replace lamp indicator (see "Related Messages" (  
) and "Regarding the indicator  
39  
Lamps" (  
)) comes on, replace the lamp as soon as possible. Using the lamp for long  
periods of time, or past the replacement date, could cause it to burst. Do not use old  
(used) lamps; this is a cause of breakage.  
•
•
•
If the lamp breaks soon after the first time it is used, it is possible that there are electrical problems  
elsewhere besides the lamp. If this happens, contact your local dealer or a service representative.  
If the lamp should break (it will make a loud bang when it does), ventilate the room well, and make  
sure not to breathe the gas that comes out of the projector vents, or get it in your eyes or mouth.  
If the lamp should break (it will make a loud bang when it does), unplug the power cord from  
the outlet, and make sure to request a replacement lamp from your local dealer. Note that  
shards of glass could damage the projector’s internals, or cause injury during handling, so  
please do not try to clean the projector or replace the lamp yourself.  
•
Obey local ordinances when disposing of used lamps. In most cases, it is possible to dispose of used  
bulbs in the same manner as used glass bottles, but in some cases, bulbs are sorted separately.  
• Do not use the projector with the lamp cover removed.  
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33  
3M™ Multimedia Projector MP8790  
THE LAMP (continued)  
Replacing the lamp  
All projector lamps will wear out eventually. If used for long periods of time, the image could become  
darkened, and the color contrast could be impacted as well. We recommend that you replace your lamps  
early. If the LAMP indicator turns red, or a message prompts you to replace the lamp when you power up  
the projector, the lamp needs to be replaced. (See "Related Messages" ( 38 ) and "Regarding the  
Indicator Lamps" ( 39 ) for details.)  
Turn off the projector, and unplug the  
power cord. Allow the lamp bulb to cool  
for at least 45 minutes, and prepare a  
new lamp.  
Insert the new lamp, and  
tighten the 3 screws firmly to  
lock it in place.  
1
2
4
5
Interlocking the 2 tabs of the  
lamp cover to the projector,  
put the lamp cover on the  
projector.  
After making sure that the projector has  
cooled adequately, slide the knob of a  
lamp cover lock as shown in the figure.  
Then, one side of the lamp cover is  
raised. Pull up the lamp cover and  
remove it, as shown in the figure.  
Then push the point of the  
lamp cover to fix it, as shown  
in the figure.  
Make sure that the lamp  
cover doesn’t come up.  
Knob of Lamp  
Cover Lock  
Tabs  
Unscrew the 3 screws, and slowly pull  
3
Push  
out the lamp by the handle.  
•
Be careful not to touch the inside of the lamp case.  
Turn on the projector power,  
and reset the lamp timer.  
6
• To reset the lamp timer, from the  
OPTION menu, select the LAMP  
31  
TIME. (  
)
ATTENTION • Make sure that the screws are screwed in firmly. Loose screws could result in damage or injury.  
• Do not use with lamp cover removed.  
•
Do not reset the lamp timer without replacing the lamp. Reset the lamp timer always when replacing  
the lamp. The message functions will not operate properly if the lamp timer is not reset correctly.  
• When the lamp has been replaced after the message of “CHANGE THE LAMP .....THE POWER  
WILL TURN OFF AFTER 0 hr.” is displayed, or the LAMP indicator is red, complete the following  
operation within 10 minutes of switching power on.  
NOTE  
• The LAMP indicator is also red when the lamp unit reaches high temperature.  
Before replacing the lamp, switch power off, wait approximately 20 minutes, and switch power on  
again. If the LAMP indicator is still red, replace the lamp.  
34  
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3M™ Multimedia Projector MP8790  
THE AIR FILTER  
Caring for the air filter  
The air filter should be cleaned about every 100 hours. If the LAMP indicator and  
TEMP indicator blink red simultaneously, or a message prompts you to clean the air  
filter when you turn on the unit, the filter needs to be cleaned. (See "Related  
38  
39  
Messages" (  
) and "Regarding the Indicator Lamps" (  
) for details.)  
Turn off the projector, and unplug the power cord  
1
2
Apply a vacuum cleaner to  
the top of the air filter cover  
to clean the air filter  
Filter Cover  
Turn on the projector, and use the menu to reset the filter  
timer  
3
• To reset the air filter timer, from the OPTION menu, select FILTER TIME.  
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35  
3M™ Multimedia Projector MP8790  
THE AIR FILTER (continued)  
Replacing the air filter  
If the soiling will not come off the air filter, or it becomes damaged, then it needs to be  
replaced. Please contact your local dealer, after confirming the model of your  
separately sold replacement air filter.  
Turn off the projector, and unplug the power cord. Prepare a  
new air filter (one specified for your projector)  
1
Remove the air filter cover and air filter  
2
Insert the new filter, and replace the  
filter cover  
3
Turn on the projector power, and using the menu, reset the  
4
filter timer  
• To reset the lamp timer, from the OPTION menu, select FILTER TIME.  
ATTENTION • Make sure to turn off the power and unplug the power cord before caring for  
the unit. Please carefully read "Safety Instructions", in order to care for your projector correctly.  
• Do not use with air filter cover removed.  
• If the air filter becomes clogged by dust or the like, internal temperature rises and could cause  
malfunction. The power is automatically turned off in order to prevent the unit from overheating  
internally.  
36  
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3M™ Multimedia Projector MP8790  
OTHER CARE  
Caring for the inside of the projector :  
In order to ensure the safe use of your projector, please have it cleaned and inspected by  
your local dealer about once every 2 years. Never try to care for the inside of the unit  
yourself. Doing so is dangerous.  
Caring for the lens :  
Lightly wipe the lens with a commercially available lens-cleaning wipe. Do not touch the  
lens directly with your hand.  
Caring for the cabinet and remote control transmitter :  
Wipe lightly with gauze or a soft cloth. If soiling is severe, dip a soft cloth in water or a  
neutral cleanser diluted in water, and wipe lightly after wringing well. Then, wipe lightly  
with a soft, dry cloth.  
ATTENTION • Make sure to turn off the power and unplug the power cord before caring for  
the unit. Please carefully read "Safety Instructions" in this manual, in order to care for your projector  
correctly.  
• Do not use cleaners or chemicals other than those listed above, including benzene and paint  
thinner.  
• Do not use aerosols or sprays.  
• Do not polish or wipe with hard objects.  
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37  
3M™ Multimedia Projector MP8790  
WHAT TO DO WHEN YOU THINK A MACHINE DEFECT HAS OCCURRED  
Related Messages  
When the unit's power is ON, messages such as those shown below may be displayed. When  
any such message is displayed on the screen, please respond as described below.  
Message  
Description  
CHANGE THE LAMP  
Lamp usage time is approaching 2,000 hours. (Note 2)  
Preparation of a new lamp, and an early lamp change, is  
recommended. After you have changed the lamp, please be  
sure to reset the lamp timer.  
AFTER REPLACING LAMP,  
RESET THE LAMP TIMER.  
(Note 1)  
Lamp usage time is approaching 2,000 hours. A lamp change  
CHANGE THE LAMP  
AFTER REPLACING LAMP,  
RESET THE LAMP TIMER.  
within  
hours is recommended. (Note 2)  
When lamp usage reaches 2,000 hours, the power will  
automatically be turned OFF. Please change the lamp by  
THE POWER WILL TURN OFF  
referring to “THE LAMP” (  
changed the lamp, please be sure to reset the lamp  
timer.  
). After you have  
33  
AFTER  
hr.  
(Note 1)  
As lamp use has reached 2,000 hours, the power will soon be  
automatically turned OFF. (Note 2)  
Please immediately turn the power OFF, and follow the  
CHANGE THE LAMP  
AFTER REPLACING LAMP,  
RESET THE LAMP TIMER.  
THE POWER WILL TURN OFF  
AFTER 0 hr.  
instructions in the “THE LAMP” (  
).  
33  
After you have changed the lamp, please be sure to reset the  
lamp timer. (  
)
31  
A note of precaution when cleaning the air filter.  
After cleaning the filter, operate FILTER TIME of the OPTION  
CLEAN THE AIR FILTER  
AFTER CLEANING AIR FILTER,  
RESET THE FILTER TIMER.  
Menu (  
), and perform reset of the filter timer.  
31  
There is no input signal.  
Please confirm the signal input connection, and the status of the  
signal source.  
NO INPUT IS DETECTED  
ON  
The horizontal or vertical wavelength of the inputted signal is  
outside of the response parameters of this unit. Please confirm  
the specs for this unit or the signal source specs.  
SYNC IS OUT OF RANGE  
fH  
fV  
ON  
kHz  
Hz  
The internal portion temperature is rising. Please turn the power  
OFF, and allow the unit to cool down for approximately 20  
minutes. After having confirmed the following items, then please  
resent the power to ON.  
CHECK THE AIR FLOW  
•
•
•
Is there blockage of the air passage aperture?  
Is the air filter dirty?  
Does the peripheral temperature exceed 35°C?  
NOTES  
Note 1: Although this message will be automatically disappeared after around 3 minutes, it will be  
reappeared every time the power is turned ON.  
Note 2: Lamps have a finite product life. Lamps are characterized by the fact that, after long hours of  
usage, a lamp will no longer light up, or the lamp will break or burst, etc. This unit is equipped  
with an automatic shut-down function, such that the power will automatically be turned OFF  
when lamp usage time has reached 2,000 hours. Please be aware, however, that among lamp  
types, there are major differences in product lifetimes; a lamp may thus fail to light even prior  
to the functioning of the automatic shut-down function of this unit.  
38  
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3M™ Multimedia Projector MP8790  
Regarding the Indicator Lamps  
Lighting and flashing of the POWER indicator, the LAMP indicator, and the  
TEMP indicator have the meanings as described in the Table below.  
Please respond in accordance with the instructions within the Table.  
POWER  
LAMP  
TEMP  
Description  
indicator indicator indicator  
The orange  
Turned OFF Turned OFF  
The STANDBY mode is set  
lamp is lighted (Not lighted) (Not lighted)  
Flashing of the green lamp  
The green lamp is lighted  
Flashing of the orange lamp  
Turned OFF  
Turned OFF  
Turned OFF  
Turned OFF  
Turned OFF  
Turned OFF  
The unit is warming up. Please wait.  
The unit is in an ON state. Ordinary operations may be performed.  
The unit is cooling down. Please wait.  
The unit is cooling down. Please wait.  
Blinking of the  
red lamp  
A certain error has been detected. Wait until the POWER indicator lamp has finished  
flashing, and then perform the proper response measure using the item descriptions  
below as reference.  
-
-
The lamp does not light.  
There is a possibility that the interior portion has become heated. Turn the power OFF and wait  
approximately 20 minutes. After the main unit has cooled down, please confirm whether or not  
there is blockage of the air passage aperture, whether or not the filter is dirty, and/or whether or  
not the peripheral temperature exceeds 35°C, etc. After performing any needed maintenance,  
turn the power ON again; if the same display is displayed, then please change the lamp.  
The red lamp  
is lighted, or  
blinks  
The red lamp  
is lighted  
Turned  
OFF  
Either there is no lamp and/or lamp cover, or either of these has not been properly fixed  
(attached). Turn the power OFF and wait approximately 45 minutes. After the main unit has  
sufficiently cooled down, please make confirmation of the attachment state of the lamp and  
lamp cover. After performing any needed maintenance, turn the power ON again; if the same  
display is displayed, then please contact a sales store or a service company.  
The red lamp  
is lighted, or  
blinks  
Blinking of the  
red lamp  
Turned  
OFF  
The cooling fan is not operating. Turn the power OFF and wait approximately 20 minutes. After the  
main unit has cooled down, please make confirmation that no foreign matter has become caught in  
the fan, etc. After performing any needed maintenance, turn the power ON again; if the same display  
is displayed, then please contact a sales store or a service company.  
The red lamp  
is lighted, or  
blinks  
Blinking of the  
red lamp  
Turned  
OFF  
There is a possibility that the interior portion has become heated. Turn the power OFF and wait  
approximately 20 minutes. After the main unit has cooled down, please confirm whether or not  
there is blockage of the air passage aperture, whether or not the filter is dirty, and/or whether or  
not the peripheral temperature exceeds 35°C, etc. After performing any needed maintenance,  
turn the power ON again; if the same display is displayed, then please contact a sales store or a  
service company.  
The red lamp is  
lighted, or  
blinks  
The red lamp is  
lighted  
Turned  
OFF  
There is a possibility that the interior portion has become overcooled. Please use the unit within  
the usage temperature parameters (0°C to 35°C). After performing any needed maintenance,  
turn the power ON again; if the same display is displayed, then please contact a sales store or a  
service company.  
The green lamp  
is lighted  
Alternative blinking  
with the red lamp  
This is a notification that it is time to clean the filter.  
After cleaning the filter, operate the FILTER TIME portion of the OPTION Menu, and perform  
reset of the FILTER TIME.  
The green  
Simultaneous blinking  
with the red lamp  
lamp is lighted  
NOTE  
When the interior portion has become overheated, for safety purposes, the power source is automatically turned OFF,  
and the indicator lamps may also be turned OFF. Press the “ ” (power OFF) side of the main power switch, and wait  
for approximately 20 minutes. Please then use the unit only after having first confirmed that the unit has sufficiently  
cooled down.  
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39  
3M™ Multimedia Projector MP8790  
WHAT TO DO WHEN YOU THINK A MACHINE DEFECT HAS OCCURRED (continued)  
Phenomena That May Easily Be Mistaken for Machine Defects  
Before requesting repair, check in accordance with the following chart.  
If the situation cannot be corrected, then contact your dealer.  
Reference  
Page(s)  
Phenomenon  
Cases not involving a machine defect  
Items to be confirmed  
The main power source is not ON.  
Turn on the main power.  
3, 15  
The electrical power cord is not plugged in.  
Correctly connect the power cord.  
Be sure to press the “  
of the main power switch, and leave this OFF  
interrupted during operation, such as by for approximately 20 minutes. After the unit  
O” (power OFF) side  
Power does not  
come ON  
The main power source has been  
15  
a power outage (blackout), etc.  
has sufficiently cooled down, turn ON the  
power source.  
The input changeover settings  
are mismatched.  
Select the input signal, and  
correct the settings.  
16  
No sound or  
pictures are  
outputted  
No signal is being inputted.  
Correctly connect the connection cord.  
Correctly connect the connection cord.  
Adjust the VOLUME setting to a higher level.  
8-12  
8-12  
18  
The electrical wiring to this unit  
is not correctly connected.  
Pictures are  
displayed, but no  
sounds are heard  
The volume setting has been set at (or  
adjusted to) an extremely low level.  
Press the MUTE button to release  
(change) the MUTE mode setting.  
The MUTE mode is the current setting.  
18  
The electrical wiring to this unit  
is not correctly connected.  
Correctly connect the connection cord.  
8-12  
26  
Sounds are  
heard, but no  
pictures are  
displayed  
The brightness setting has been set at Adjust the BRIGHT setting to a  
(or adjusted to) an extremely low level.  
brighter level.  
The lens cap has not been removed.  
Remove the lens cap.  
15  
Colors have a faded-  
out appearance  
Color tone is poor  
Perform picture adjustments by changing the  
COLOR BAL R, the COLOR BAL B, and/or the  
TINT settings, etc.  
Color depth setting or color tone setting  
27  
The brightness setting and/or contrast  
setting has not been properly adjusted.  
Perform picture adjustments by changing the  
BRIGHT and/or CONTRAST settings, etc.  
26  
31  
The WHISPER mode is the current Change (by releasing) from the  
setting. WHISPER mode.  
Pictures appear  
dark  
Lamp is approaching the end of its Exchange the old lamp with a new  
33, 34  
product lifetime.  
Pictures appear Either the FOCUS setting or the H  
PHASE is not properly adjusted.  
lamp.  
Adjust the FOCUS and H PHASE settings.  
16, 27  
blurry  
Input signal changes INPUT dial is set between the click Turn the INPUT dial and set it at the  
16  
with no-operation.  
points.  
click point.  
NOTE  
Although bright spots or dark spots may appear on the screen, this is a unique characteristic of liquid crystal displays, and  
such do not constitute or imply a machine defect.  
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40  
3M™ Multimedia Projector MP8790  
SPECIFICATIONS  
NOTE • This specifications are subject to change without notice.  
Item  
Specification  
Product name  
Liquid crystal projector  
2.5 cm (0.99 type)  
TFT active matrix  
Panel size  
Drive system  
Pixels  
Liquid  
crystal  
panel  
786,432 pixels (1024 horizontal x 768 vertical)  
Zoom lens F=1.7 ~ 2.4 f=30.5 ~ 45.8 mm  
275 W UHB  
Lens  
Lamp  
+
Speaker  
1.0W 1.0W (Stereo)  
Power supply  
Power consumption  
Temperature range  
Size  
AC100 ~ 120V, 4.7A / AC220 ~ 240V, 2.0A  
430W  
0 ~ 35°C (Operating)  
380 (W) x 120 (H) x 303 (D) mm (Not including protruding parts)  
5.8 kg  
Weight (mass)  
RGB Input Ports  
AUDIO Ports  
RGB................................1  
BNC (when RGB selected)  
– (R.G.B.H.V)..................1  
DVI..................................1  
VIDEO Input Ports  
VIDEO IN ........................1  
S-VIDEO IN ....................1  
COMPONENT VIDEO  
– (CR/PR, CB/PB, Y) ........1  
BNC  
AUDIO IN 1 ....................1  
AUDIO IN 2 ....................1  
AUDIO IN (R, L)..............1  
RGB Output Port  
RGB OUT........................1  
AUDIO Output Port  
AUDIO OUT....................1  
CONTROL Ports  
CONTROL ......................1  
USB ................................1  
Other Ports  
Ports  
(when COMPONENT selected)  
– (CR/PR, Y, CB/PB) ........1  
WIRELESS & NETWORK MODULE....1  
REMOTE CONTROL ......1  
Dimension Diagram  
263  
380  
117  
Unit : mm  
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41  
3M™ Multimedia Projector MP8790  
ACCESSORIES  
Accessories ................................................................ Part Number  
UHB Lamp, 275W ................................................................................... 78-6969-9601-2  
Air Filter Assy .......................................................................................... 78-8118-9103-1  
Power Cord (US) ..................................................................................... 78-8118-8102-4  
Power Cord (UK) ..................................................................................... 78-8118-8101-6  
Power Cord (Europe) .............................................................................. 78-8118-8103-2  
VGA Cable .............................................................................................. 78-8118-8708-8  
RCA Video/Audio Cable .......................................................................... 78-8118-3234-0  
RCA Component Cable ........................................................................... 78-8118-8843-3  
S-Video Cable ......................................................................................... 78-8118-3238-1  
Stereo Mini-Cable.................................................................................... 78-8118-8846-6  
USB cable ............................................................................................... 78-8118-9057-9  
RS-232C Adapter .................................................................................... 78-8118-9114-8  
Remote Control ....................................................................................... 78-8118-9115-5  
Not Included with Basic Packet .......................................... Part Number  
Ceiling Mount .......................................................................................... 78-6969-9607-9  
Adjustable Height Suspension ................................................................ 78-6969-9564-2  
Shipping Case ......................................................................................... 78-6969-8925-6  
Carrying Case.......................................................................................... 78-6969-8926-4  
Wireless Module...................................................................................... 78-6969-9600-4  
Mouse Cable (PS/2) ................................................................................ 78-8118-8105-7  
Mouse Cable (Serial) .............................................................................. 78-8118-8107-3  
Mouse Cable (ADB) ................................................................................ 78-8118-8106-5  
Mac Adapter ............................................................................................ 78-8118-3308-2  
How to Order  
Please order these parts through your dealer, or contact 3M Customer Service at the  
following number:  
In U.S. or Canada : 1-800-328-1371  
In other locations, contact your local 3M sales office.  
© 3M 2002. All Rights Reserved.  
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42  

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