Acer Computer Monitor ETL1307150 User Manual
Acer AL1715  
Service Guide  
Service guide files and updates are available  
on the CSD web; for more information,  
please refer to http://csd.acer.com.tw  
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Conventions  
The following conventions are used in this manual  
SCREEN MESSAGES  
NOTE  
Denotes actual messages that appear on screen.  
Gives bits and pieces of additional information  
related to the current topic.  
Alerts you to any damage that might result from  
doing or not doing specific actions.  
WARNING  
CAUTION  
Gives precautionary measures to avoid possible  
hardware or software problems.  
Remind you to do specific actions relevant to the  
accomplishment of procedures.  
IMPORTANT  
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Preface  
Before using this information and the product it supports, please read the following general information.  
1. This Service Guide provides you with all technical information relating to the BASIC CONFIGURATION  
decided for Acer's "global" product offering. To better fit local market requirements and enhance product  
competitiveness, your regional office MAY have decided to extend the functionality of a machine (e.g.  
add-on card, modem, or extra memory capability). These LOCALIZED FEATURES will NOT be covered  
in this generic service guide. In such cases, please contact your regional offices or the responsible  
personnel/channel to provide you with further technical details.  
2. Please note WHEN ORDERING FRU PARTS, that you should check the most up-to-date information  
available on your regional web or channel. If, for whatever reason, a part number change is made, it will  
not be noted in the printed Service Guide. For ACER-AUTHORIZED SERVICE PROVIDERS, your Acer  
office may have a DIFFERENT part number code to those given in the FRU list of this printed Service  
Guide. You MUST use the list provided by your regional Acer office to order FRU parts for repair and  
service of customer machines.  
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WARNING: (FOR FCC CERTIFIED MODELS)  
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant  
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful  
interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy,  
and if not installed and used in accordance with the instructions, may cause harmful interference to radio  
communications. However, there is no guarantee that interference will not occur in a particular installation. If this  
equipment does cause harmful interference to radio or television reception, which can be determined by turning  
the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following  
measures:  
1. Reorient or relocate the receiving antenna.  
2. Increase the separation between the equipment and receiver.  
3. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.  
4. Consult the dealer or an experienced radio/TV technician for help.  
NOTICE:  
1. The changes or modifications not expressly approved by the party responsible for compliance could void the  
user's authority to operate the equipment.  
2. Shielded interface cables and AC power cord, if any, must be used in order to comply with the emission  
limits.  
3. The manufacturer is not responsible for any radio or TV interference caused by unauthorized modification to  
this equipment. It is the responsibility of the user to correct such interference.  
As an ENERGY STAR® Partner our company has determined that this product meets the ENERGY STAR®  
guidelines for energy efficiency.  
WARNING:  
To prevent fire or shock hazard, do not expose the monitor to rain or moisture. Dangerously high voltages are  
present inside the monitor. Do not open the cabinet. Refer servicing to qualified personnel only.  
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PRECAUTIONS  
z Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tub, swimming pool or  
in a wet basement.  
z Do not place the monitor on an unstable trolley, stand, or table. If the monitor falls, it can injure a person and  
cause serious damage to the appliance. Use only a trolley or stand recommended by the manufacturer or  
sold with the monitor. If you mount the monitor on a wall or shelf, use a mounting kit approved by the  
manufacturer and follow the kit instructions.  
z Slots and openings in the back and bottom of the cabinet are provided for ventilation. To ensure reliable  
operation of the monitor and to protect it from overheating, be sure these openings are not blocked or covered.  
Do not place the monitor on a bed, sofa, rug, or similar surface. Do not place the monitor near or over a  
radiator or heat register. Do not place the monitor in a bookcase or cabinet unless proper ventilation is  
provided.  
z The monitor should be operated only from the type of power source indicated on the label. If you are not sure  
of the type of power supplied to your home, consult your dealer or local power company.  
z The monitor is equipped with a three-pronged grounded plug, a plug with a third (grounding) pin. This plug will  
fit only into a grounded power outlet as a safety feature. If your outlet does not accommodate the three-wire  
plug, have an electrician install the correct outlet, or use an adapter to ground the appliance safely. Do not  
defeat the safety purpose of the grounded plug.  
zUnplug the unit during a lightning storm or when it will not be used for long periods of time. This will protect the  
monitor from damage due to power surges.  
z Do not overload power strips and extension cords. Overloading can result in fire or electric shock.  
z Never push any object into the slot on the monitor cabinet. It could short circuit parts causing a fire or electric  
shock. Never spill liquids on the monitor.  
z Do not attempt to service the monitor yourself; opening or removing covers can expose you to dangerous  
voltages and other hazards. Please refer all servicing to qualified service personnel  
z To ensure satisfactory operation, use the monitor only with UL listed computers which have appropriate  
configured receptacles marked between 100 - 240V AC, Min. 3.5A.  
z The wall socket shall be installed near the equipment and shall be easily accessible.  
z
For use only with the attached power adapter (output 12V DC) which have UL, CSA listed license  
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SPECIAL NOTES ON LCD MONITORS  
The following symptoms are normal with LCD monitor and do not indicate a problem.  
NOTES  
• Due to the nature of the fluorescent light, the screen may flicker during initial use. Turn off the Power Switch  
and then turn it on again to make sure the flicker disappears.  
• You may find slightly uneven brightness on the screen depending on the desktop pattern you use.  
• The LCD screen has effective pixels of 99.99% or more. It may include blemishes of 0.01% or less such as a  
missing pixel or a pixel lit all of the time.  
• Due to the nature of the LCD screen, an afterimage of the previous screen may remain after switching the  
image, when the same image is displayed for hours. In this case, the screen is recovered slowly by changing  
the image or turning off the Power Switch for hours.  
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Table of Contents  
Chapter 1  
Monitor Features ----------------------------------------------------------------- 6  
Monitor Features --------------------------------------------------------------------------- 8  
Factory Preset Timing Table -----------------------------------------------------------10  
Block Diagram ------------------------------------------------------------------------------11  
Main board Diagram ----------------------------------------------------------------------12  
Software Flowchart ----------------------------------------------------------------------- 13  
Main board Layout ------------------------------------------------------------------------ 15  
Inverter Board Layout ---------------------------------------------------------------------17  
Front Bezel ---------------------------------------------------------------------------- ------18  
Rear Bezel -----------------------------------------------------------------------------------19  
Chapter 2  
Operating Instructions ----------------------------------------------------------- 20  
External Controls ----------------------------------------------------------------------------20  
Front Panel Controls -----------------------------------------------------------------------20  
OSD Menu ------------------------------------------------------------------------------------22  
Hot-Key Menu --------------------------------------------------------------------------------25  
OSD Message --------------------------------------------------------------------------------26  
LOGO -------------------------------------------------------------------------------------------27  
Chapter 3  
Chapter 4  
Chapter 5  
Chapter 6  
Machine Disassembly --------------------------------------------------------------28  
Troubleshooting --------------------------------------------------------------------- 31  
Connector Information ------------------------------------------------------------ 34  
FRU (Field Replacement Unit) List -------------------------------------------- 35  
Exploded Diagram ---------------------------------------------------------------------------35  
Chapter 7  
Schematic Diagram ---------------------------------------------------------------- 40  
Analog Input --------------------------------------------------------------------------------- 40  
Input -------------------------------------------------------------------------------------------- 41  
Scaler TSU16AK ---------------------------------------------------------------------------- 42  
Panel Interface ------------------------------------------------------------------------------- 43  
MCU -------------------------------------------------------------------------------------------- 44  
Appendix  
Online Support Information ------------------------------------------------------ 45  
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Chapter 1  
Monitor Features  
SAMSUNG  
TFT Color LCD  
43.2cm(17.0")  
Driving system  
Size  
Pixel pitch  
0.264mm(H) x 0.264mm(V)  
300cd/m2 (Typical)  
500:1(Typical)  
LCD Panel  
Brightness  
Contrast  
Viewable angle  
Response time  
150° (H) 135° (V)  
12ms  
R, G, B Analog Interface  
Digital (Dual-Input Model)  
30KHz – 80KHz  
Video  
Input  
H-Frequency  
V-Frequency  
55-75Hz  
Display Colors  
16.2M Colors  
Dot Clock  
Max. Resolution  
Plug & Play  
135MHZ  
1280 x 1024 @75Hz  
VESA DDC1/2BTM  
≤45W  
ON Mode  
EPA ENERGY  
STAR®  
OFF Mode  
≤3W  
D-Sub 15pin  
Input Connector  
DVI-D 24pin (Dual-Input Model)  
Analog:0.7Vp-p(standard),75 OHM, Positive  
Digital signal (Dual-Input Model)  
Horizontal: 337.92mm  
Vertical: 270.34mm  
100~264VAC,47~63HZ  
Input Video Signal  
Maximum Screen Size  
Power Source  
Operating Temp: 5° to 50°C  
Storage Temp: -20° to 65°C  
Operating Humidity: 10% to 85%  
Environmental Considerations  
Dimensions  
430(W)×445(H)×152(D) mm  
4.2kg Unit (net)  
Weight (N. W.)  
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• Auto Adjust Key  
• </ Volume down (option)  
• >/ Volume up (option)  
• Power Button  
• MENU/ Exit  
External Controls  
Switch  
• Contrast  
• Brightness  
• Focus  
• Clock  
• H.Position  
• V.Position  
• Language  
• Input signal Selection  
• Auto configuration (Analog model only)  
• (Warm) Color  
• (Cool) Color  
External Controls  
Functions  
• RGB Color temperature  
• Reset  
• OSD position /timeout  
• Display information  
• Exit  
45 Watts  
Power Consumption (Maximum)  
Regulatory Compliance  
CUL, FCC, VCCI, CCC, MPRII, CE, TÜV/GS,  
CE, TCO’99, ISO13406-2  
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Factory Preset Timing Table  
10  
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Monitor Block Diagram  
The LCD MONITOR contains a main board, an inverter/power board, keypad board and audio board which  
house the flat panel control logic, brightness control logic and DDC.  
The Inverter board will drive the backlight of panel.  
The Power will provide the 12V DC-power to inverter board and main board.  
Monitor Block Diagram  
POWER (90V-264V)  
LAMP  
PWPC  
AUDIO IN  
AUDIO  
DC-DC  
ANALOG IN  
LCD Controller  
LCD PANEL  
-Scaler  
-OSD  
-LVDS IC  
DVI IN  
MCU  
-ADC  
KEY BOARD  
SPEAKER  
SPEAKER  
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MAIN BOARD DIAGRAM  
VAA2  
VCC2.5V VAA1 VAA3  
VCC3.3V  
VAA4  
AT24C02  
(DDC) U301  
PA 0~9  
PB 0~9  
DDC SCL/SDA  
VGA R/G/B  
VGA Input  
Panel  
VGA Hs / Vs  
RXD/TXD  
U401  
TSU16AK  
VLCD  
U601  
Winbond  
EPR SDA/SCL  
AT24C16  
KEY Control  
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Software Flow Chart  
(1)  
(2)  
(3)  
(4)  
(5)  
Y
N
N
(6)  
(8)  
(9)  
(7)  
Y
(10)  
(11)  
(12)  
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1. Initialize MCU settings, including I/O, Timer, ISR and Serial Port settings.  
2. Read EEPROM content to recover monitor settings, including brightness, contrast, color  
temperature and OSD position….etc.  
3. Initialize system variable, including system flag, OSD timeout counter, burin mode status… etc.  
4. Initialize OSD menu variable for user operation  
5. Initialize device on the board, now only MST scaler chip will be initialized  
6. Check if system is in power off status from first AC power up. If yes, then go to 7, else go to 8.  
7. If yes, system will be forced to enter power off status  
8. Mode detection  
9. Check if input timing has been changed, if yes then go to 10, else go to 11  
10. Setup MST scaler for display according input timing  
11. OSD handler for OSD operation.  
12. Debug handler, only debug only  
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Monitor Board Layout  
Item  
X401  
Description  
CRYSTAL 14.318MHzHC-49U  
20MHz  
X601  
U201  
RT9164A18PG S0T-223  
AIC1084-33CM  
U202  
U301  
M24C02-WMN6T SMT  
TSU16AK pqfp-128  
W78E65P-40  
U401  
U601  
CN201  
CN301  
CN302  
CN503  
CN601  
CN602  
RN601  
RN602  
HEADER 2*6P  
D-SUB 15PIN  
3 PIN  
PIN HEADER 24P 2.0mm  
PIN EADER  
WAFER 16PIN 2.0mm DIP  
CHIP AR 8P4R 10KOHM +-5  
CHIP AR 8P4R 10KOHM +-5  
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Inverter Board Layout  
Item  
Description  
1.5MM RIVET  
PT201  
PT202  
IC901  
IC902  
IC903  
CN102  
CN201  
CN202  
CN203  
CN204  
CN301  
CN302  
BD901  
NR901  
C905  
1.5MM RIVET  
SG6841D BY SYSTEM  
PC123 Y82  
HTL431  
HEADER 2*6P  
WAFER  
WAFER  
CONN.2P R/A 87210-0236 DIP  
WAFER  
PHONE JACK(Only for SPK)  
3 PIN  
BRIDGE 2KBP06M  
8 OHM NCTR  
100UF +-20% 400V  
X'FMR  
T901  
Q211  
2SC5706 DIP SANYO  
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Front Bezel  
Item  
1
Description  
Auto Adjust Key/Exit  
2
3
4
>/ Volume up (option)  
</ Volume down (option)  
MENU/ENTER  
5
6
LED  
POWER  
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Back Bezel  
Item  
Description  
AC POWER CORD  
1
2
3
4
Signal Cable  
Audio Cable（Only for speaker）  
DVI Cable (Only Dual-Input Mode)  
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Chapter 2  
Operating Instructions  
Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the  
monitor. By changing these settings, the picture can be adjusted to your personal preferences.  
• The power cord should be connected.  
• Connect the video cable from the monitor to the video card.  
• Press the power button to turn on the monitor position. The power indicator will light up.  
External Control Button  
EXTERNAL CONTROLS  
1. Auto Adjust Key/Exit  
2. >/ Volume up (option)  
3. </ Volume down (option)  
4. MENU/ENTER  
5. LED  
6. Power Key  
FRONT PANEL CONTROLS  
• Power Button:  
Press this button to turn the monitor ON or OFF.  
• MENU / ENTER:  
Activate OSD menu when OSD is OFF or activate/de-activate adjustment function when OSD is ON or Exit  
OSD menu when in Volume Adjust OSD status.  
• </ Volume down:  
Activates the volume control when the OSD is OFF or navigate through adjustment icons when OSD is ON or  
adjust a function when function is activated.  
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• >/ Volume up:  
Activates the volume control when the OSD is OFF or navigate through adjustment icons when OSD is ON or  
adjust a function when function is activated.  
• Auto Adjust button / Exit:  
1.When OSD menu is in active status, this button will act as EXIT-KEY  
(Exit OSD menu).  
2. When OSD menu is in off status, press this button for 2 seconds to activate the Auto Adjustment function.  
The Auto Adjustment function is used to set the H-Pos, V-Pos, Clock and Focus.  
• Power Indicator:  
Green—Power On mode.  
Orange— Power Off mode.  
NOTES  
NOTES  
• Do not install the monitor in a location near heat sources such as radiators or air ducts, or in a place subject to  
direct sunlight, or excessive dust or mechanical vibration or shock.  
• Save the original shipping carton and packing materials, as they will come in handy if you ever have to ship  
your monitor.  
• For maximum protection, repackage your monitor as it was originally packed at the factory.  
• To keep the monitor looking new, periodically clean it with a soft cloth. Stubborn stains may be removed with a  
cloth lightly dampened with a mild detergent solution. Never use strong solvents such as thinner, benzene, or  
abrasive cleaners, since these will damage the cabinet. As a safety precaution, always unplug the monitor  
before cleaning it.  
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OSD Menu  
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How to adjust a setting:  
1. Press the MENU-button to activate the OSD window. See figure 4.  
2. Press <or >to select the desired function. See figure 4.  
3. Press the MENU-button to select the function that you want to adjust.  
4. Press < or >to change the settings of the current function.  
5. To exit and save, select the exit function. If you want to adjust any other function, repeat steps 2-4.  
The description for control function:  
Main Menu Icon  
Sub Menu Icon Sub Menu Item  
Description  
Contrast  
Contrast from Digital-register.  
Brightness  
Focus  
Backlight Adjustment  
Adjust Picture Phase to reduce Horizontal-Line noise  
Adjust picture Clock to reduce Vertical-Line noise.  
Adjust the horizontal position of the picture.  
Adjust the vertical position of the picture.  
Clock  
H. Position  
V. Position  
N/A  
N/A  
Warm  
Cool  
Recall Warm Color Temperature from EEPROM.  
Recall Cool Color Temperature from EEPROM.  
User / Red  
User / Green  
User / Blue  
Red Gain from Digital-register.  
Green Gain Digital-register.  
Blue Gain from Digital-register.  
N/A  
N/A  
N/A  
N/A  
N/A  
English  
繁體中文  
Deutsch  
简体中文  
日本語  
Set OSD display language to English.  
Set OSD display language to Traditional Chinese.  
Set OSD display language to German.  
Set OSD display language to Simplified Chinese.  
Set OSD display language to Japanese.  
H. Position  
V. Position  
Adjust the horizontal position of the OSD.  
Adjust the vertical position of the OSD.  
Adjust the OSD timeout.  
OSD Timeout  
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Main Menu Icon  
Sub Menu Icon Sub Menu Item  
Description  
Auto Adjust the H/V Position, Focus and Clock of  
picture.  
N/A  
N/A  
Auto Config  
(Only Analog-Input  
Model)  
Analog  
Select input signal from analog (D-Sub)  
Select input signal from digital (DVI)  
(Only Dual-Input  
Mode)  
N/A  
N/A  
Digital  
Show the resolution, H/V frequency and input port of  
current input timing.  
Information  
Clear each old status of Auto-configuration and set  
the color temperature to Cool.  
N/A  
N/A  
Reset  
Exit  
Exit OSD  
Hot-Key Menu  
The description for Hot-Key function:  
Item  
Operation  
Icon  
Description  
When the OSD is closed, press Left or  
Volume of Audio adjustment. The Audio  
will be Mute when volume=0.  
Volume Right button will be Volume Hot-Key  
Function  
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OSD Message  
The description for OSD Message:  
Item  
Description  
1.) When Analog signal input, if User Press Hot-Key “Auto”, will show this message, and the  
monitor do the auto config function.  
Auto Config  
Please Wait  
2.) When Digital signal input, without this OSD Message.  
Input Not  
When the Hsync Frequency, Vsync Frequency or Resolution is out of the monitor support range,  
will show this message. This message will be flying.  
Supported  
1.) Analog-Only Model: When the video cable is not connected, will show this message. This  
message will be flying.  
Cable Not  
Connected  
2.) Dual-Input Model: Dual-Input Model without this OSD Message.  
1.) Analog-Only Model: When the video cable is connected, but there is no active signal input,  
will show this message, then enter power saving.  
No Signal  
2.) Dual-Input Model: When the video cable is not connected, or the video cable is connected  
but there is no active signal input, will show this message, then enter power saving.  
LOGO  
When the monitor is power on, the LOGO will be showed in the center, and disappear slowly.  
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Chapter 3  
Machine Disassembly  
This chapter contains step-by-step procedures on how to assemble the monitor for maintenance and  
troubleshooting.  
NOTE: 1.The screws for the different components vary in size. During the disassembly process, group the  
screws with the corresponding components to avoid mismatch when putting back the components.  
2. Note: The monitor surface is susceptible to scratching! Therefore, lay the monitor on a soft surface  
when mounting or removing the base.  
3.Wear gloves  
Picture  
Description  
To stick the insulated film on the mainframe  
and the shield  
Make preparation before putting the main  
board:  
1
2
1.insert the wiring harness  
2.stick the soft cushion  
To put the bezel on panel  
To fix the main frame and panel with the  
screws  
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Picture  
Description  
To put inverter board, and connect related  
interfaces  
To fix the board with screws  
To fix the wires with adhesive tape  
Connect Inverter board with Audio board  
To fix Audio board with screws  
To connect main board with Audio board  
To connect all other interfaces  
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To fix the main board with screws  
After having fix the board, cover the shield on  
them  
STRENGTH:  
In the end, cover the back bezel and connect above part with the chassis  
Warning: 1.In order to prevent the static disturbance, wear resisting static ring  
2. No watch  
27  
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Chapter 4  
Trouble shooting  
This chapter provides troubleshooting information for the AL1715:  
Defect Mode  
Failure Analysis  
Repair  
Testing  
Missing Line  
Bright Dot  
Abnormal  
Display  
Dark Dot  
Light Leakage  
Mura  
Check Panel  
Panel Change  
Image Sticking  
Dot Defect  
Brightness Spot  
Dot Defect  
Particle  
No display  
Check Power Board  
Check Main board  
Check Panel  
Change Power Board  
Change Main board  
Change Panel  
Check Keyboard  
Change Keyboard  
Check Line Connected  
Change Wires  
Power board and Mainborad  
Noise  
Check Main board  
Check Panel  
Change Main board  
Change Panel  
Test  
NG  
A
Completed  
Next  
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Defect Mode  
Failure Analysis  
Repair  
Testing  
Noise  
Check Single Cable  
Check Main board  
Change Single Cable  
Change Main board  
Change Panel  
A
Flicker  
Check Panel  
Abnormal  
Gray  
Check Main board  
Check Panel  
Change Main board  
Change Panel  
Check LVD Cable  
Change LVD Cable  
R\G\B  
Check Single Cable  
Check Main board  
Check Panel  
Change Single Cable  
Change Main board  
Change Panel  
Display  
Abnormal  
Monitor  
Check Power board  
Change Power board  
Shut Down  
Check Main board  
Check Keyboard  
Change Main board  
Change Keyboard  
No signal  
Check Single Cable  
Check Main board  
Change Single Cable  
Change Main board  
Power on  
Display  
Change Main board  
Check Main board  
Abnormal  
Test  
Next  
A
Completed  
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Defect Mode  
Failure Analysis  
Repair  
Testing  
LED  
A
Change Keyboard or  
Mainboard or wire  
LED Off  
Display  
Abnormal  
Change Keyboard or  
Mainboard  
LED Dark  
Change Keyboard or  
Mainboard or wire  
LED Abnormal  
LED Flicker  
Change Keyboard or  
Mainboard or wire  
Abnormal  
Keyboard  
Check Wires  
Change Wires  
Check Main board  
Change Main board  
Change Keyboard  
Check Keyboard  
Abnormal  
OSD  
Check Main board  
Check LVDS Wire  
Change Main board  
Change LVDS Wire  
Test  
Next  
Completed  
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Chapter 5  
Connector Information  
The following figure shows the connector locations on the monitor board:  
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Chapter 6  
FRU (Field Replaceable Unit) List  
This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of Acer Altos  
AL1721.Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise  
Authorization). Please note that WHENORDERING FRU PARTS, you should check the most up-to-date  
information available on your regional web or channel. For whatever reasons a part number change is made, it  
will not be noted on the printed Service Guide. For ACER AUTHORIZED SERVICE PROVIDERS, your Acer  
office may have a DIFFERENT part number code from those given in the FRU list of this printed Service Guide.  
You MUST use the local FRU list provided by your regional Acer office to order FRU parts for repair and service  
of customer machines.  
NOTE: To scrap or to return the defective parts, you should follow the local government ordinance or regulations  
on how to dispose it properly, or follow the rules set by your regional Acer office on how to return it.  
Exploded Diagram  
32  
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Note: above picture show the description of the following  
component  
No.  
Picture  
Description  
1
Front Bezel  
2
3
4
Main Frame  
Back cover  
Panel  
33  
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5
Shield  
No.  
6
Picture  
Description  
Hinge cover  
7
8
9
Stand base  
Foot sticker  
Inverter board  
10  
Mylar  
34  
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Function board  
11  
12  
Speaker (option)  
Description  
No.  
Picture  
13  
Main board  
14  
15  
16  
17  
Audio Board (option)  
Signal cable  
Audio cable (option)  
Power code  
18  
19  
Inverter board cable  
LVDS cable  
35  
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20  
Sponge  
21  
Mainframe screws  
Description  
No.  
Picture  
Rear panel screws  
22  
Ground rush  
23  
24  
Hinge cover screws  
Function  
screws  
board  
25  
26  
Main shield screws  
D-sub screws  
27  
36  
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Chapter 7  
Schematic Diagram  
INPUT  
CN301  
DB15  
RXD  
TXD  
6
6
11  
12  
13  
14  
15  
1
6
2
7
3
8
4
9
5
10  
FB301  
FB302  
FB303  
0
0
0
　
　
　
1/16W  
1/16W  
1/16W  
R301  
R302  
R303  
R304  
100  
100  
100  
470  
　
　
　
　
1/16W C304 0.047uF  
1/16W C305 0.047uF  
1/16W C306 0.047uF  
1/16W C307 0.001uF  
RIN  
GIN  
BIN  
4
4
4
4
SOG  
PC5V  
R325  
C301  
C302  
NC  
C303  
NC  
VGA_CON  
75  
　
1/16W NC  
R305  
R306  
R307  
100  
100  
100  
　
　
　
1/16W C308 0.047uF  
1/16W C309 0.047uF  
1/16W C310 0.047uF  
GNDR  
GNDG  
GNDB  
4
4
4
D301  
BAV99  
D302  
BAV99  
D303  
BAV99  
VCC5V  
VCC5V  
R308  
10K  
　
1/16W  
VCC5V  
R309  
R310  
100  
150  
　
　
1/16W  
1/16W  
PC5V  
ST_DET1  
HSYNC  
6
4
HSI  
FB304  
150 OHM  
VSI  
R312  
100  
　
1/16W  
R311  
1K  
　
1/16W  
D304  
VSYNC  
4
BAT54C-GS08  
D319  
MLL5232B 5.6V  
D320  
MLL5232B 5.6V  
R313  
C311  
33pF  
R314  
10K  
C312  
220pF  
D317  
MLL5232B 5.6V  
2.2K  
　
1/16W  
　
1/16W  
R317  
R318  
10K  
C313  
0.1uF  
U301  
　
1/16W  
10K  
　
1/16W  
8
1
2
3
4
VCC  
WP  
SCL  
SDA  
A0  
A1  
A2  
7
6
5
CLK_DDC  
DAT_DDC  
R315  
R316  
100  
100  
　
　
1/16W  
1/16W  
GND  
CN302  
AT24C02N-10SC  
D321  
MLL5232B 5.6V  
D318  
MLL5232B 5.6V  
6
6
DDC_DAT  
DDC_CLK  
25  
26  
27  
29  
R
G
B
VCC5V  
DVI5V  
RGB GND  
HSYNC  
VSYNC  
SYNC GND  
DDC SCL  
DDC SDA  
+5V  
28  
8
15  
6
7
CLK_DDC2  
DAT_DDC2  
R319  
R320  
100  
100  
　
　
1/16W NC  
1/16W NC  
DVI5V  
D305  
BAT54C-GS08 NC  
R321  
10K 1/16W NC  
14  
16  
　
R322  
100  
　
1/16W NC  
ST_DET2  
6
HPD  
11  
3
19  
1/3shield  
2/4shield  
0/5shield  
clk shield  
D314  
D315  
D316  
C314  
0.1uF NC  
R323  
1/16W NC  
R324  
C315  
0.1uF NC  
U302  
LL5232B 5.6V 5% NCLL5232B 5.6V 5% NCLL5232B 5.6V 5% NC  
10K  
　
1/16W NC  
22  
10K  
　
8
7
6
5
1
2
3
4
VCC  
WP  
SCL  
A0  
A1  
A2  
18  
17  
10  
9
2
1
13  
12  
5
B+  
B-  
G+  
G-  
R+  
R-  
4
4
4
4
4
4
DAT0+  
DAT0-  
DAT1+  
DAT1-  
DAT2+  
DAT2-  
DAT3+  
DAT3-  
DAT4+  
DAT4-  
DAT5+  
DAT5-  
clk+  
SDA  
GND  
AT24C02N-10SC NC  
4
21  
20  
23  
24  
CLK+  
CLK-  
4
4
clk-  
JACK NC  
D306 D307 D308 D309 D310 D311 D312 D313  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
37  
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SCALER TSU16AK  
VCC3.3 FB401 VPO  
600 OHM  
VCC2.5 FB402 VDD  
600 OHM  
2
VCC3.3  
2
VCC2.5  
C405  
10uF/16V  
+
C414  
10uF/16V  
+
VAD VPLLVDVI VDPLL  
VPO  
VDD  
C406C407C408C409C410C411C412C413  
0.1uF0.1uF0.1uF0.1uF0.1uF0.1uF0.1uF0.1uF  
C415C416C417C418  
0.1uF0.1uF0.1uF0.1uF  
U401  
63  
62  
60  
59  
61  
58  
57  
37  
38  
29  
28  
PA0  
PA1  
PA2  
PA3  
PA4  
PA5  
PA6  
PA7  
PA8  
PA9  
102  
103  
106  
107  
108  
109  
110  
111  
112  
113  
LVA3P  
3
3
3
3
3
3
3
3
3
RIN  
GNDR  
GIN  
GNDG  
SOG  
RIN0  
RIN0M  
GIN0  
GIN0M  
SOGIN0  
BIN0  
BIN0M  
HSYNC0  
VSYNC0  
DDC1_CLK/GPO8  
DDC1_DAT/GPO7  
LVA3M  
LVACKP  
LVACKM  
LVA2P  
LVA2M  
LVA1P  
LVA1M  
LVA0P  
LVA0M  
BIN  
GNDB  
HSYNC  
VSYNC  
VAA1 FB403  
VAD  
PA[0..9]  
PB[0..9]  
PA[0..9]  
PB[0..9]  
5
5
DEL  
2
VAA1  
600 OHM  
C419  
10uF/16V  
+
40  
41  
43  
44  
46  
47  
49  
50  
52  
3
3
3
3
3
3
3
R+  
R-  
G+  
G-  
B+  
B-  
CLK+  
CLK-  
R+  
R-  
G+  
G-  
B+  
C420C421  
0.1uF0.1uF  
PB0  
PB1  
PB2  
PB3  
PB4  
PB5  
PB6  
PB7  
PB8  
PB9  
118  
119  
120  
121  
122  
123  
124  
125  
128  
1
NC/LVB3P  
NC/LVB3M  
NC/LVBCKP  
NC/LVBCKM  
NC/LVB2P  
NC/LVB2M  
NC/LVB1P  
NC/LVB1M  
NC/LVB0P  
NC/LVB0M  
B-  
CK+  
CK-  
REXT  
3
VDVI  
R403 390  
　
1/16W  
VAA2  
VAA3  
VAA4  
FB404 VPLL  
66  
67  
2
2
2
VAA2  
VAA3  
VAA4  
REFP  
REFM  
C401  
0.1uF  
600 OHM  
TSU16AK  
C422  
10uF/16V  
+
C423  
0.1uF  
69  
71  
70  
32  
72  
6
6
6
6
6
CSZ  
SCL  
SDA  
CSZ  
SCL  
SDA  
HWRESETZ  
INT  
FB405 VDVI  
HWRESET  
VCC5V  
INT  
600 OHM  
R407 R405 R404 R406  
C424  
10uF/16V  
+
73  
74  
C425C426  
0.1uF0.1uF  
2
6
AdjBACKLITE  
Volume  
PWM0  
PWM1  
VCC3.3  
C402 22pF  
33  
30  
77  
78  
31  
AD0  
AD1  
AD2  
AD3  
6
6
6
6
XIN  
ADO/NC  
AD1/NC  
AD2/NC  
AD3/NC  
X401  
R401  
NC  
FB406 VDPLL  
14.318MHz  
C403 22pF  
34  
XOUT  
6
600 OHM  
BUS TYPE/NC  
C404  
0.1uF  
3
2
C427  
10uF/16V  
+
BYPASS  
AVSS_LPLL  
R402  
4.7K  
　
1/16W  
C428  
0.1uF  
R402  
R401  
NC  
Direct Bus  
3-WIRE  
4.7K  
NC  
4.7K  
38  
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PANEL INTERFACE  
PA[0..9]  
4
PA[0..9]  
PA0  
PA1  
PA2  
PA3  
PA4  
PA5  
LVA3P  
LVA3M  
LVACKP  
LVACKM  
LVA2P  
CN503  
LVB0M  
LVB1M  
LVB2M  
LVBCKM RXOC-  
LVB3M  
LVA0M  
LVA1M  
LVA2M  
LVACKM RXEC-  
LVA3M RXE3-  
RXO0-  
RXO1-  
RXO2-  
RXO0+  
RXO1+  
RXO2+  
RXOC+  
RXO3+  
RXE0+  
RXE1+  
RXE2+  
RXEC+  
RXE3+  
LVB0P  
LVB1P  
LVB2P  
LVBCKP  
LVB3P  
LVA0P  
LVA1P  
LVA2P  
LVACKP  
LVA3P  
1
3
5
7
9
11  
13  
15  
17  
19  
21  
23  
2
4
6
8
10  
12  
14  
16  
18  
20  
22  
24  
LVA2M  
LVA1P  
LVA1M  
RXO3-  
RXE0-  
RXE1-  
RXE2-  
PA6  
PA7  
PA8  
PA9  
PB0  
PB1  
PB2  
PB3  
LVA0P  
LVA0M  
LVB3P  
LVB3M  
LVBCKP  
LVBCKM  
PB[0..9]  
4
PB[0..9]  
PB4  
PB5  
PB6  
PB7  
PB8  
PB9  
LVB2P  
LVB2M  
LVB1P  
LVB1M  
LVB0P  
LVB0M  
CON24A  
R502  
　 1/16W  
0
VLCD  
VLCD  
2
C509  
+
C510  
0.1uF  
C511  
0.1uF  
22uF/16V  
39  
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MCU  
VCPU  
2
VCPU  
RP601  
10Kx4  
RP602  
10Kx4  
R601  
10K  
R602  
10K  
C601  
.1u  
C602 22pF  
Y601  
U601  
35  
21  
43  
POWER  
ENTER  
RIGHT  
LEFT  
AUTO  
LED_B  
EA/VP  
XTAL1  
P0.0  
P0.1  
P0.2  
P0.3  
P0.4  
P0.5  
P0.6  
P0.7  
42  
41  
40  
39  
38  
37  
36  
C603  
11.0592MHZ  
VCPU  
10u/16V  
U603  
MAX810STR (NC)  
2
20  
10  
XTAL2  
RESET  
C604 22pF  
LED_O  
LED_G  
3
VCC RST  
24  
25  
26  
27  
28  
29  
30  
31  
16  
17  
18  
19  
HWRESET  
onPANEL_5V/3.3V  
onBACKLITE  
4
P2.0  
P2.1  
P2.2  
P2.3  
P2.4  
P2.5  
P2.6  
P2.7  
T0/P3.4  
T1/P3.5  
P3.6/WR  
P3.7/RD  
D601  
1N4148  
R603  
12  
14  
15  
33  
32  
2
P4.3  
4
INT  
2
INT0/P3.2  
INT1/P3.3  
ALE/P  
10K  
CSZ  
SCL  
SDA  
4
4
4
Reset  
Circuit  
VCPU  
PSEN  
R606  
R607  
10K  
10K  
VCPU  
R604  
R605  
10K  
10K  
R608  
R609  
100  
100  
2
3
4
5
6
7
8
9
P1.0  
P1.1  
P1.2  
P1.3  
P1.4  
P1.5  
P1.6  
P1.7  
C605  
.1u  
AD0  
AD1  
AD2  
AD3  
4
4
4
4
U602  
1
2
3
4
8
7
6
5
A0  
A1  
A2  
GND  
VCC  
WP  
SCL  
SDA  
R639  
NC  
13  
11  
R610  
R611  
R634  
R635  
NC  
NC  
100  
100  
DDC_DAT  
DDC_CLK  
TXD  
3
3
3
3
P3.1/TXD  
P3.0/RXD  
24C16  
R638  
0
R615  
R614  
10K  
10K  
8051-PLCC  
RXD  
VCC12V  
VCC5V  
R612R613  
NC 10K  
FB601 600 OHM  
VCPU  
CN603  
VCC12V  
2
CN601  
FB602 600 OHM  
VCPU  
1
2
3
4
1
3
5
2
4
6
VCC5V  
10K  
10K 1/16W  
2,3,4  
R632  
10K  
R631  
10K  
Standby  
Mute  
R627  
R626  
　
1/16W  
7
9
8
10  
3
3
ST_DET1  
ST_DET2  
OUT-R+  
OUT-R-  
DVI-DSUB SELECT  
Mute_key  
OUT-L+  
OUT-L-  
11  
13  
12  
14  
R630  
R633  
0
0
C613  
0.1uF/16V  
C612  
0.1uF/16V  
CON14A  
C614  
NC  
C615  
NC  
FB603  
R625  
10K  
　
1/16W  
Volume  
4
VCPU  
600 OHM  
VCPU  
VCPU  
C611  
R628  
470  
1uF/16V  
R617  
470  
R618  
470  
Q603  
Q602  
LED_B  
4.7K  
R616  
B
R629  
LED_O  
LED_G  
AUTO  
4.7KB  
Q601  
CN602  
B
R619  
4.7K  
PMBS3906  
PMBS3906  
DVI-DSUB SELECT  
LED_GRN  
1
3
5
7
9
11  
13  
15  
2
4
6
8
10  
12  
14  
16  
LED_BLUE  
PMBS3906  
LED_ORANGE  
R620  
0
0
0
R621  
R623  
0
0
ENTER  
LEFT  
RIGHT R622  
POWER  
R624  
Mute_key  
OUT-R+  
OUT-R-  
C606  
NC  
C608  
NC  
C610  
NC  
OUT-L+  
OUT-L-  
C607  
NC  
C609  
NC  
CON16A  
40  
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Appendix  
Online Support Information  
This section describes online technical support services available to help you repair your Acer Systems.  
If you are a distributor, dealer, ASP or TPM, please refer your technical queries to your local Acer branch  
office. Acer Branch Offices and Regional Business Units may access our website. However some  
sources will require a user i.d. and password. These can be obtained directly from Acer CSD Taiwan.  
Acer's Website offers you convenient and valuable support resources whenever you need them.  
In the Technical Information section you can download information on all of Acer's Notebook, Desktop  
Server models including:  
Service guides  
User's manuals  
Training materials  
Bios updates  
Spare parts lists  
TABs (Technical Announcement Bulletin)  
For these purposes, we have included an Acrobat File to facilitate the problem-free downloading of  
technical material.  
Also contained on this website are:  
Detailed information on Acer's International Traveler's Warranty (ITW)  
Returned material authorization procedures  
An overview of all the support services we offer, accompanied by a list of telephone, fax  
contacts for all your technical queries.  
We are always looking for ways to optimize and improve our services, so if you have any suggestions  
comments, please do not hesitate to communicate these to us.  
41  
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