Onkyo Stereo Amplifier A 933 User Manual

*En_A933_01.fm Page 1 Monday, December 20, 2004 1:23 PM  
Contents  
Integrated Amplifier  
Introduction.................................... 2  
A-933  
Instruction Manual  
Connections................................. 10  
Enjoying Audio Sources.............. 17  
Troubleshooting........................... 20  
Specifications .............................. 22  
Thank you for purchasing an Onkyo IntegratedAmpli-  
fier. Please read this manual thoroughly before making  
connections and plugging in the unit.  
Following the instructions in this manual will enable  
you to obtain optimum performance and listening  
enjoyment from your new Integrated Amplifier.  
Please retain this manual for future reference.  
En  
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Precautions  
1. Recording Copyright—Unless it’s for personal use  
only, recording copyrighted material is illegal with-  
out the permission of the copyright holder.  
For British models  
Replacement and mounting of an AC plug on the power  
supply cord of this unit should be performed only by  
qualified service personnel.  
2. AC Fuse—The AC fuse inside the unit is not user-  
serviceable. If you cannot turn on the unit, contact  
your Onkyo dealer.  
IMPORTANT  
The wires in the mains lead are coloured in accordance  
with the following code:  
3. Care—Occasionally you should dust the unit all  
over with a soft cloth. For stubborn stains, use a soft  
cloth dampened with a weak solution of mild deter-  
gent and water. Dry the unit immediately afterwards  
with a clean cloth. Don’t use abrasive cloths, thin-  
ners, alcohol, or other chemical solvents, because  
they may damage the finish or remove the panel let-  
tering.  
Blue:  
Neutral  
Brown: Live  
As the colours of the wires in the mains lead of this  
apparatus may not correspond with the coloured mark-  
ings identifying the terminals in your plug, proceed as  
follows:  
The wire which is coloured blue must be connected to  
the terminal which is marked with the letter N or  
coloured black.  
4. Power  
WARNING  
BEFORE PLUGGING IN THE UNIT FOR THE  
FIRST TIME, READ THE FOLLOWING SEC-  
TION CAREFULLY.  
AC outlet voltages vary from country to country.  
Make sure that the voltage in your area meets the  
voltage requirements printed on the unit’s rear panel  
(e.g., AC 230 V, 50 Hz or AC 120 V, 60 Hz).  
The wire which is coloured brown must be connected to  
the terminal which is marked with the letter L or  
coloured red.  
IMPORTANT  
The plug is fitted with an appropriate fuse. If the fuse  
needs to be replaced, the replacement fuse must  
approved by ASTA or BSI to BS1362 and have the same  
ampere rating as that indicated on the plug. Check for  
the ASTA mark or the BSI mark on the body of the fuse.  
If the power cord’s plug is not suitable for your socket  
outlets, cut if off and fit a suitable plug. Fit a suitable  
fuse in the plug.  
Some models have a voltage selector switch for  
compatibility with power systems around the world.  
Before you plug in such a model, make sure that the  
voltage selector is set to the correct voltage for your  
area.  
5. Never Touch this Unit with Wet Hands—Never  
handle this unit or its power cord while your hands  
are wet or damp. If water or any other liquid gets  
inside this unit, have it checked by your Onkyo  
dealer.  
For European Models  
Declaration of Conformity  
6. Handling Notes  
• If you need to transport this unit, use the original  
packaging to pack it how it was when you origi-  
nally bought it.  
• Do not leave rubber or plastic items on this unit  
for a long time, because they may leave marks on  
the case.  
• This unit’s top and rear panels may get warm  
after prolonged use. This is normal.  
• If you do not use this unit for a long time, it may  
not work properly the next time you turn it on, so  
be sure to use it occasionally.  
We,  
ONKYO EUROPE  
ELECTRONICS GmbH  
LIEGNITZERSTRASSE 6,  
82194 GROEBENZELL,  
GERMANY  
declare in own responsibility, that the ONKYO product  
described in this instruction manual is in compliance with the  
corresponding  
EN55013, EN55020 and EN61000-3-2, -3-3.  
technical standards such as EN60065,  
GROEBENZELL, GERMANY  
I. MORI  
ONKYO EUROPE ELECTRONICS GmbH  
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Features  
Supplied Accessories  
Make sure you have the following accessories:  
Separate design allows various  
component configurations  
Stereo digital amp featuring Onkyo’s  
unique VL (Vector Linear) Digital  
technology  
Remote controller (RC-613S)  
& two batteries (AA/R6)  
O
N
1
S
T
A
N
D
B
Y
Can be used as a power amplifier with a  
2
5
3
6
9
4
7
1
0
/0  
F
M
8
>
1
0
A
G
R
M
OU  
P
C
D
C
L
E
A
R
M
D
separate preamp (MAIN IN function)  
TA  
P
E
/C  
D
R
V
O
L
U
P
R
M
E
E
S
E
T
M
U
T
IN  
G
P
R
E
S
V
ET  
O
L
U
M
E
T
IM  
E
S
L
R
E
E
P
Super Bass, Bass, and Treble tone  
ME  
MOR  
Y
E
N
T
E
R
R
R
E
AND  
O
P
E
A
M
P
T
IN  
P
U
T
M
DI  
S
ODE  
P
LAY  
S
C
R
OL  
L
C
C
L
A
O
C
L
L
K
R
C
-6  
1
3
S
controls  
Selectable A/B speaker outputs  
Included remote controller can be used  
with other Onkyo components  
Phono input for connecting a turntable  
In catalogs and on packaging, the letter added to the end  
of the product name indicates the color of the A-933.  
Specifications and operation are the same regardless of  
color.  
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Table of Contents  
Introduction  
Important Safety Instructions ....................................................................................2  
Precautions..................................................................................................................3  
Features .......................................................................................................................4  
Supplied Accessories.................................................................................................4  
Table of Contents........................................................................................................5  
Front & Rear Panels....................................................................................................6  
Front Panel............................................................................................................6  
Rear Panel.............................................................................................................7  
Remote Controller (RC-613S).....................................................................................8  
Installing the Batteries ...........................................................................................9  
Using the Remote Controller .................................................................................9  
Connections  
Connecting the A-933 ...............................................................................................10  
About the System Functions................................................................................10  
Connecting Your Speakers..................................................................................11  
Connecting a Subwoofer .....................................................................................12  
Hookup Diagrams for Onkyo Separate Collection...............................................13  
Audio Components..............................................................................................14  
Connecting a CD player...................................................................................14  
Connecting an MD Recorder............................................................................14  
Connecting a Tuner..........................................................................................14  
Connecting a Cassette Deck............................................................................14  
Connecting a Turntable....................................................................................15  
Connecting a TV or Other Component with an Audio Output ..........................15  
Connecting a Preamp ......................................................................................15  
Connecting Another Component’s Power Cord ...............................................15  
Connecting  
Components...........................................................................16  
Connecting the Power Cord.............................................................................16  
Enjoying Audio Sources  
Turning on the A-933...........................................................................................17  
Listening to Components.....................................................................................17  
Selecting Speaker Set A or B...........................................................................17  
Muting the A-933 (remote controller only)........................................................18  
Using Headphones...........................................................................................18  
Using the Tone Controls......................................................................................18  
Selecting Tone or Direct Mode.........................................................................18  
Adjusting the Super Bass.................................................................................18  
Adjusting the Bass ...........................................................................................18  
Adjusting the Treble .........................................................................................18  
Using the MAIN IN Function................................................................................19  
Recording ............................................................................................................19  
Others  
Troubleshooting........................................................................................................20  
Specifications............................................................................................................22  
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Front & Rear Panels  
Front Panel  
1 2 3 4  
5 6  
7
MD  
LINE  
TAPE/CDR  
CD  
STANDBY/ON  
TUNER  
ON(G)  
STANDBY(R)  
PHONO  
SUPER BASS  
BASS  
TREBLE  
POWER  
(
)
G
TO N E  
DIRECT  
R
PHONES  
A
B
MAIN IN  
MAX  
(
)
ON  
OFF  
SPEAKERS  
8
9
0
A
B
C D  
For detailed information, refer to the pages in parentheses.  
A POWER switch (17)  
J SUPER BASS control (18)  
This control is for adjusting the level of very-low  
bass sounds.  
This is the main power switch. When set to OFF, the  
A-933 is completely shutdown. When set to ON, the  
A-933 can be set to On or Standby.  
K BASS control (18)  
This control is for adjusting the level of bass  
sounds.  
B STANDBY/ON button (17)  
This button is used to set the A-933 to On or  
Standby. For models with a [POWER] switch, this  
button has no effect unless the [POWER] switch is  
set to ON.  
L TREBLE control (18)  
This control is for adjusting the level of treble  
sounds.  
C STANDBY indicator (17)  
This indicator lights up when the A-933 is in  
Standby mode.  
M TONE(R)/DIRECT(G) button & indicator (18)  
This button is used to select Tone mode or Direct  
mode. The indicator lights up red (R) in Tone mode;  
green (G) in Direct mode.  
D Remote control sensor (9)  
This sensor receives control signals from the remote  
controller.  
N MAIN IN button & indicator (19)  
When the A-933 is used as a power amplifier with a  
separate preamp, this button is used to set the MAIN  
IN function. The indicator lights up blue while the  
MAIN IN function is on.  
E Input selector (17)  
This control is used to select from the following  
input sources: PHONO, TUNER, CD, LINE, MD,  
or TAPE/CDR.  
F Input selector indicator (17)  
These indicators show the currently selected input  
source.  
G VOLUME control (18)  
This control is used to adjust the volume of the  
A-933.  
H PHONES jack (18)  
This phone jack is for connecting a standard pair of  
stereo headphones for private listening.  
I SPEAKERS A/B buttons & indicators (17)  
These buttons are used to select which speaker set,  
A or B, outputs sound. The indicators show if each  
speaker set is on or off.  
6
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Front & Rear Panels—Continued  
Rear Panel  
1 2 3 4 5 6  
7
8
9
L
GND  
L
L
SPEAKERS  
B
A
R
R
R
L
PHONO (MM)  
TUNER  
L
CD  
LINE  
AC OUTLET  
AC 230-240V  
50 Hz  
UNSWITCHED  
L
R
L
R
L
SUBWOOFER  
PREOUT  
TOTAL 100W MAX.  
R
R
R
REMOTE  
OUT  
IN  
OUT  
IN  
CONTROL  
MAIN IN  
MD  
CAUTION: SPEAKER IMPEDANCE  
TAPE/CDR  
A
A
or  
+
B
B
:
:
4 OHMS MIN. /SPEAKER  
8 OHMS MIN. /SPEAKER  
INTEGRATED AMPLIFIER  
MODEL NOA. -933  
0 A B  
C
A Grounding terminal  
J SUBWOOFER PREOUT  
This terminal is for connecting a turntable’s ground  
This jack is for connecting a powered subwoofer.  
wire.  
K MAIN IN  
B PHONO (MM) input  
This analog audio input is for connecting a separate  
preamp when you want to use the A-933 as a power  
amplifier.  
This analog audio input is for connecting a turntable  
with a moving-magnet cartridge.  
C TUNER input  
Caution:  
This analog audio input is for connecting a tuner’s  
analog audio output.  
Do not connect a component that does not have an  
output volume control, such as a CD player, because  
the sound will be output at maximum volume and  
may damage the A-933 and your speakers.  
D CD input  
This analog audio input is for connecting a CD  
player’s analog audio output.  
L MD IN/OUT  
This analog audio input and output are for connect-  
ing an MD recorder with an analog audio input and  
output.  
E LINE input  
This analog audio input is for connecting a compo-  
nent’s analog audio output (TV, etc).  
M TAPE/CDR IN/OUT  
F
REMOTE CONTROL jacks  
These (Remote Interactive) jacks can be con-  
This analog audio input and output are for connect-  
ing a recorder (CD, cassette, etc) with an analog  
audio input and output.  
nected to the  
jacks on your other Onkyo audio  
components. The A-933’s remote controller can  
then be used to control all of your components. To  
use  
, you must make an analog audio connection  
between the A-933 and each component.  
G SPEAKERS B  
These terminal posts are for connecting speaker set  
B.  
H SPEAKERS A  
These terminal posts are for connecting speaker set  
A.  
I AC OUTLET  
This AC outlet can be used to supply power to  
another audio component. The type of outlet  
depends on the country in which you purchased the  
A-933.  
See pages 11–16 for connection information  
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Remote Controller (RC-613S)  
E Reverse & Fast Forward [ ]/[ ] buttons  
These buttons are used for reverse and fast forward  
on an Onkyo Separate Collection CD, MD, cassette,  
or CDR component that’s connected via  
some Onkyo tuners that’re connected via  
they’re used to change the frequency.  
. On  
,
1
2
ON  
STANDBY  
F VOLUME [ ]/[ ] buttons (18)  
These buttons adjust the volume of the A-933.  
1
5
9
2
6
3
7
4
8
G TIMER, Up/Down [ ]/[ ] & ENTER buttons  
3
4
These buttons set the clock and timer on an Onkyo  
Separate Collection tuner that’s connected via  
.
>
10  
GROUP  
10/0  
A
B
C
D
E
H MEMORY button  
FM  
AM  
CD  
CLEAR  
This button is used to set the memory playback  
function on an Onkyo Separate Collection CD, MD,  
or CDR component that’s connected via . With  
memory playback, you can make a custom program.  
MD  
TAPE/CDR  
VOLUME  
I RANDOM button  
This button is used to set the random playback func-  
tion on an Onkyo Separate Collection CD, MD, or  
CDR component that’s connected via  
5
6
.
F
PRESET  
PRESET  
MUTING  
J P MODE button  
This button sets the playback mode on an Onkyo  
Separate Collection MD or CDR component that’s  
G
H
VOLUME  
TIMER  
SLEEP  
connected via  
.
7
K GROUP button  
I
This button selects groups on an Onkyo Separate  
ENTER  
REPEAT  
P MODE  
Collection MD component that’s connected via  
.
INPUT  
DISPLAY  
J
K
L
M
L CLEAR button  
MEMORY  
RANDOM  
8
9
0
This button is used to remove the last track from the  
memory function program, etc., on an Onkyo Sepa-  
rate Collection CD, MD, cassette, or CDR compo-  
SCROLL  
CLOCK  
CALL  
nent that’s connected via  
.
M CD control buttons  
These buttons are used to control an Onkyo Sepa-  
rate Collection CD player that’s connected via  
Pause [ ]: Pauses playback  
.
For detailed information, refer to the pages in parenthe-  
ses.  
Stop [ ]: Stops playback  
Play [ ]: Starts playback  
N MD control buttons  
A STANDBY button (17)  
These buttons are used to control an Onkyo Sepa-  
rate Collection MD player that’s connected via  
Pause [ ]: Pauses playback  
This button is used to set the A-933 to Standby.  
.
B ON button (17)  
This button is used to turn on the A-933.  
Stop [ ]: Stops playback  
Play [ ]: Starts playback  
C Number buttons  
These buttons are used to enter track numbers. To  
enter a single-digit number, simply press the corre-  
sponding button. The [10/0] button is used to enter  
either 10 or 0. The [>10] button is used when enter-  
ing 2-digit numbers above 10.  
O TAPE/CDR control buttons  
For double cassette decks, only Deck B can be con-  
trolled.  
Reverse Play/Pause [  
playback on an Onkyo Separate Collection cas-  
sette deck that’s connected via ; pauses play-  
/
]: Starts reverse  
See the instruction manual supplied with each com-  
ponent for more information.  
back on an Onkyo Separate Collection CDR.  
Stop [ ]: Stops playback  
Play [ ]: Starts playback  
D FM & AM buttons  
These buttons are used to select AM or FM on an  
Onkyo Separate Collection tuner that’s connected  
P MUTING button (18)  
This button is used to mute the A-933.  
via  
.
8
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Remote Controller (RC-613S)—Continued  
Notes:  
Q Previous & Next [  
]) buttons  
]/[  
] (PRESET [  
]
• The supplied batteries should last for about six  
months, although this will vary with usage.  
[
These buttons are used to select the previous or next  
track on an Onkyo Separate Collection CD, MD,  
cassette, or CDR component that’s connected via  
. Pressing them repeatedly selects earlier or later  
tracks. On an Onkyo Separate Collection tuner,  
they’re used to select radio presets.  
• If the remote controller doesn’t work reliably, try  
replacing the batteries.  
• Don’t mix new and old batteries or different types of  
batteries.  
• If you intend not to use the remote controller for a long  
time, remove the batteries to prevent damage from  
leakage or corrosion.  
R SLEEP button  
This button is used to set the sleep function on an  
Onkyo Separate Collection tuner that’s connected  
• Expired batteries should be removed as soon as possi-  
ble to prevent damage from leakage or corrosion.  
via  
.
S INPUT [ ]/[ ] buttons (17)  
These buttons are used to select from the following  
input sources: PHONO, TUNER, CD, LINE, MD,  
or TAPE/CDR.  
Using the Remote Controller  
T REPEAT button  
Point the remote controller toward the remote control  
sensor.  
This button is used to set the repeat playback func-  
tions on an Onkyo Separate Collection CD, MD, or  
Remote control sensor  
CDR component that’s connected via  
.
U DISPLAY button  
This button is used to change the information shown  
on the display.  
V SCROLL button  
This button is used to scroll text displayed on an  
Onkyo Separate Collection MD or CDR component  
O
N
1
ST  
AN  
DB  
2
Y
5
3
6
9
4
1
0
/0  
7
FM  
8
>
1
0
AM  
G
RO  
UP  
CD  
CL  
EA  
R
M
D
TA  
PE  
/C  
DR  
VO  
that’s connected via  
.
P
R
LU  
ME  
E
S
E
T
M
U
T
IN  
G
P
R
E
VO  
LU  
S
E
T
M
E
TI  
M
ER  
SL  
EE  
P
ME  
MO  
RY  
EN  
TE  
R
RA  
ND  
OM  
RE  
PE  
AT  
About 5 m  
(16 f  
P
IN  
PU  
T
MO  
DE  
DIS  
PL  
AY  
SC  
RO  
LL  
CL  
CA  
O
CK  
LL  
W CLOCK CALL button  
R
C
-
6
13  
S
eet)  
This button is used to display the time on an Onkyo  
Separate Collection tuner that’s connected via  
.
Notes:  
• The remote controller may not work reliably if the  
A-933 is subjected to bright light, such as direct sun-  
light or inverter-type fluorescent lights. Keep this in  
mind when installing.  
Installing the Batteries  
Remove the battery  
compartment cover, as  
shown.  
• If another remote controller of the same type is used in  
the same room, or the A-933 is installed close to  
equipment that uses infrared rays, the remote control-  
ler may not work reliably.  
• Don’t put anything, such as a book, on the remote con-  
troller, because the buttons may be pressed inadvert-  
ently, thereby draining the batteries.  
Insert the two supplied  
batteries (AA/R6) in  
accordance with the  
polarity markings in  
the battery compart-  
ment.  
• The remote controller may not work reliably if the  
A-933 is installed in a rack behind colored glass doors.  
Keep this in mind when installing.  
• The remote controller will not work if there’s an obsta-  
cle between it and the A-933’s remote control sensor.  
Replace the battery  
compartment cover.  
9
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*En_A933_02.fm Page 10 Tuesday, January 25, 2005 1:46 PM  
Connecting the A-933  
About the System Functions  
If you connect another component from the Onkyo Separate Collection to the A-933 with the appropriate  
and audio  
cables, you can use the following system functions.  
(No cables are supplied with the A-933.)  
cables are special cables solely for use with Onkyo products.  
Connecting components from the Onkyo Separate Collection.  
See page 13 for more information.  
Auto Power On  
When you turn on the power or start playback on a component that’s connected to the A-933, the A-933 will turn on  
automatically. And when you set the A-933 to Standby, all connected components will go on Standby as well. (The  
A-933’s POWER switch must be set to ON for this to work.)  
Direct Change  
When playback is started on an audio component connected via  
ponent as the input source.  
, the A-933 will automatically select that com-  
See page 16 for more information.  
Remote Control Operation  
You can control all components in your system by using the  
A-933’s remote controller.  
Program Timer  
With an Onkyo tuner, you can program its timer to automati-  
cally start playback or recording at a specific time.  
See the tuner’s instruction manual for  
more information.  
One-touch CD Dubbing  
If your system comprises a CD player and CDR, MD recorder,  
or cassette deck, you can dub an entire CD simply with one  
press of a button.  
Dubbing Individual Tracks  
See your MD recorder’s, CDR’s, or  
cassette deck’s instruction manual for  
more information.  
If your system comprises a CD player and MD recorder or  
CDR, you can dub your favorite CD tracks individually with  
one press of a button.  
Synchro Recording  
When using a CDR, MD recorder, or cassette deck to record  
from a CD player, you can start the recording process simply  
by starting playback on the CD player.  
• Simply connecting an  
cable will not enable the system functions. You must make an analog audio connection  
between the A-933 and each component as well.  
• See the instruction manual supplied with each component for more information about the  
system functions.  
• When using the A-933 as a power amplifier (MAIN IN function), the  
system functions are unavailable.  
10  
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*En_A933_02.fm Page 11 Tuesday, January 25, 2005 1:46 PM  
Connecting the A-933—Continued  
RCA Audio Connection Color Coding  
Before Making any Connections  
• Always refer to the instructions that came with the  
component that you are connecting.  
• Red connectors are used for the right channel, and  
white connectors are used for the left channel.  
• Do not plug in the power cord until all connec-  
tions have been properly made.  
Left (white)  
L
• Do not bind audio cables with power cords and  
speaker cables. Doing so may adversely affect the  
sound quality.  
Right (red)  
R
• To prevent interference, keep power cords and  
speaker cables away from the tuner’s antenna.  
• Push each plug in all the way to make a good con-  
nection (loose connections can cause noise or mal-  
functions).  
Right!  
Wrong!  
ConnectingYour Speakers  
• Be careful not to short the  
positive and negative wires.  
Doing so may damage the  
A-933.  
• Don’t connect more than one  
wire to each speaker terminal.  
Doing so may damage the  
A-933.  
Speaker Connection Precautions  
You can connect one or two sets of speakers (A/B) to  
the A-933, and select which set outputs sound, or use  
both sets at the same time.  
Connecting one set of speakers (A or B): Only con-  
nect speakers with an impedance of 4 ohms or more  
but less than 16 ohms. If you use speakers with a  
lower impedance, and use the A-933 at high volume  
levels for a long period of time, the built-in protection  
circuit may be activated.  
• Don’t connect a speaker to more than one pair of  
speaker terminals.  
Connecting two sets of speakers (A and B): Only  
connect speakers with an impedance of 8 ohms or  
more but less than 16 ohms. If you use speakers with  
a lower impedance, and use the A-933 at high volume  
levels for a long period of time, the built-in protection  
circuit may be activated.  
SPEAKERS  
B
A
R
L
R
L
• Disconnect the power cord from the wall outlet  
before making any connections.  
• Read the instructions supplied with your speakers.  
• Pay close attention to speaker wiring polarity. In other  
words, connect positive (+) terminals to only positive  
(+) terminals, and negative (–) terminals to only nega-  
tive (–) terminals. If you get them the wrong way  
around, the sound will be out of phase and will sound  
unnatural.  
• Unnecessarily long and very thin speaker cables may  
affect the sound quality and should be avoided.  
11  
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*En_A933_02.fm Page 12 Tuesday, January 25, 2005 1:46 PM  
Connecting the A-933—Continued  
Connecting the Speaker Cables  
Connecting a Subwoofer  
You can connect a subwoofer with a built-in power  
amplifier to the A-933’s SUBWOOFER PREOUT jack.  
Strip about 15 mm of insu-  
15 mm  
1
lation from the ends of the  
speaker cables, and twist  
the bare wires tightly, as  
shown.  
L
GND  
L
L
SPEAK
B
R
R
R
L
PHONO (MM)  
TUNER  
L
CD  
LINE  
L
R
L
SUBWOOFER  
PREOUT  
Unscrew the terminal.  
LINE INPUT  
2
R
R
R
REMOTE  
OUT  
IN  
OUT  
IN  
CONTROL  
MAIN IN  
MD  
TAPE/CDR  
INTEGRATED  
MODEL NO  
AMPLIF9IE3R3  
A
.
-
LINE INPUT  
SUBWOOFER  
PRE OUT  
Fully insert the bare  
wires.  
3
Tip: The volume and quality of the bass output from  
your subwoofer will depend on its position, the shape of  
your listening room, and your listening position. In gen-  
eral, a good bass sound can be obtained by installing the  
subwoofer in a front corner, or at one-third of the way  
along the wall in front of your listening position. To find  
the best position for your subwoofer, while playing a  
movie or some music with good bass, experiment by  
placing your subwoofer at various positions within the  
room, and choose the one that provides the most satisfy-  
ing results.  
Screw the terminal tight.  
4
The following illustration shows which speaker should  
be connected to each pair of terminals.  
Right  
speaker  
Speaker set A  
Left  
speaker  
+
+
L
L
L
SPEAKERS  
A
B
R
R
R
L
OMM)  
TUNER  
L
CD  
LINE  
AC OUTLET  
AC 230-240V  
50 Hz  
UNSWITCHED  
L
R
L
R
L
TOTAL 100W MAX.  
R
R
R
REMOTE  
OUT  
IN  
OUT  
IN  
CONTROL  
AIN IN  
MD  
CAUTION: SPEAKER IMPEDANCE  
TAPE/CDR  
A
A
or  
+
B
B
:
:
4
8
OHMS MIN. /SPEAKER  
OHMS MIN. /SPEAKER  
INTEGRATED AMPLIFIER  
MODEL NOA. -933  
A-933  
+
+
Right  
speaker  
Left  
speaker  
Speaker set B  
12  
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*En_A933_02.fm Page 13 Tuesday, January 25, 2005 1:46 PM  
Connecting the A-933—Continued  
Hookup Diagrams for Onkyo Separate Collection  
The A-933 can be used with the Onkyo Separate Collection C-733 CD Player and T-433 Tuner as shown below.  
T-433  
A-933  
To wall outlet  
L
GND  
L
L
SPEAKERS  
B
A
R
R
L
PHONO (MM)  
TUNER  
L
CD  
LINE  
AC OUTLET  
AC 230-240V  
50 Hz  
UNSWITCHED  
L
R
L
R
L
SUBWOOFER  
PREOUT  
TOTAL 100W MAX.  
R
R
R
REMOTE  
OUT  
IN  
OUT  
IN  
CONTROL  
MAIN IN  
MD  
CAUTION: SPEAKER IMPEDANCE  
TAPE/CDR  
A
A
or  
+
B
B
:
:
4
8
OHMS MIN. /SPEAKER  
OHMS MIN. /SPEAKER  
INTEGRATED AMPLIFIER  
MODEL NOA. -933  
C-733  
DIGITAL  
OUT  
OPTICAL  
ANALOG  
OUT  
CONPACT DISC PLAYER  
-
C 733  
MODEL NO.  
REMOTE  
CONTROL  
L
R
Stacking Components  
Connections  
• The illustration below shows how Onkyo Separate  
Collection components can be stacked. The CD  
player is sensitive to heat, so don’t put it on top of the  
amplifier.  
• Connection information is provided on the following  
pages.  
• No  
cables are included with the A-933. Use the  
cables supplied with your other Onkyo Separate  
Collection components.  
• The jacks are used when the A-933 is combined  
with other -compatible components from the  
Onkyo Separate Collection.  
• Some components have two or more  
jacks. These  
Vertical stacking  
jacks are all the same, and you can use any of them.  
Simply connecting an cable will not enable the  
T-433  
system functions. You must make an analog audio  
connection between the A-933 and each compo-  
nent.  
A-933  
C-733  
13  
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*En_A933_02.fm Page 14 Tuesday, January 25, 2005 1:46 PM  
Connecting the A-933—Continued  
Audio Components  
Connecting a CD player  
Connecting a Tuner  
Use an analog audio cable to connect the A-933’s CD  
L/R jacks to the analog audio output jacks on the CD  
player, as shown.  
Use an analog audio cable to connect the A-933’s  
TUNER L/R jacks to the analog audio output jacks on  
the tuner, as shown.  
L
L
GND  
L
L
L
L
GND  
L
L
B
SPEA
R
R
B
R
R
R
R
L
R
PHONO (MM)  
TUNER  
L
CD  
LINE  
R
L
CD
PHONO (MM)  
TUNER  
L
CD  
LINE  
L
R
L
L
TUNER  
R
L
SUBWOOFER  
PREOUT  
SUBWOOFER  
PREOUT  
R
R
R
REMOTE  
OUT  
IN  
OUT  
IN  
CONTROL  
R
R
R
MAIN IN  
MD  
TAPE/CDR  
REMOTE  
OUT  
IN  
OUT  
IN  
CONTROL  
INTEGRATED AMPLIFIER  
MODEL NOA. -933  
MAIN IN  
MD  
TAPE/CDR  
INTEGRATED AMPLIFIER  
MODEL NOA. -933  
OUT  
ANALOG  
OUT  
L
L
R
R
Connecting a Cassette Deck  
Connecting an MD Recorder  
Use an analog audio cable to connect the A-933’s  
TAPE/CDR IN L/R jacks to the cassette deck’s output  
jacks, and use another analog audio cable to connect the  
A-933’s TAPE/CDR OUT L/R jacks to the cassette  
deck’s input jacks, as shown.  
Use an analog audio cable to connect the A-933’s MD  
IN L/R jacks to the MD recorder’s analog audio output  
jacks, and use another analog audio cable to connect the  
A-933’s MD OUT L/R jacks to the MD recorder’s ana-  
log audio input jacks, as shown.  
L
GND  
L
GND  
L
L
L
L
L
SPEAK
L
SPEA
B
B
R
R
R
R
R
L
R
L
PHONO (MM)  
TUNER  
L
CD  
LINE  
PHONO (MM)  
TUNER  
L
CD  
LINE  
L
L
R
L
R
L
R
SUBWOOFER  
PREOUT  
SUBWOOFER  
PREOUT  
R
OUT  
IN  
R
R
R
REMOTE  
R
R
R
OUT  
IN  
OUT  
IN  
OUT  
IN  
CONTROL  
REMOTE  
TAPE/CDR  
MAIN IN  
MD  
OUT  
IN  
OUT  
IN  
CONTROL  
TAPE/CDR  
MAIN IN  
MD  
TAPE/CDR  
INTEGRATED AMPLIFIER  
MODEL NOA. -933  
M
D
INTEGRATED AMPLIFIER  
MODEL NOA. -933  
L
L
L
L
R
R
R
R
REC PLAY  
(IN) (OUT)  
REC PLAY  
(IN) (OUT)  
14  
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*En_A933_02.fm Page 15 Tuesday, January 25, 2005 1:46 PM  
Connecting the A-933—Continued  
Connecting a Turntable  
Connecting a Preamp  
The A-933’s PHONO input jacks are for use with mov-  
ing-magnet (MM) type cartridges.  
The A-933 can be used as a power amplifier with a sep-  
arate preamp.  
Use an analog audio cable to connect the A-933’s  
PHONO L/R jacks to the audio output jacks on the turn-  
table, as shown.  
In this case, use an analog audio cable to connect the  
A-933’s MAIN IN jacks to the preamp’s output jacks.  
Connect the speakers to the A-933, and connect the  
playback components to the preamp.  
L
GND  
L
L
SPEA
L
GND  
B
L
L
R
R
R
L
PHONO (MM)  
TUNER  
L
CD  
LINE  
SPEAKERS  
B
L
R
R
R
L
R
L
PHONO (MM)  
TUNER  
L
CD  
LINE  
SUBWOOFER  
PREOUT  
L
L
R
L
R
SUBWOOFER  
PREOUT  
R
R
R
REMOTE  
OUT  
IN  
OUT  
IN  
CONTROL  
MAN IN  
MD  
TAPE/CDR  
INTEGRATED AMPLIFIER  
MODEL NOA. -933  
R
R
R
R
REMOTE  
OUT  
IN  
OUT  
IN  
CONTROL  
MAIN IN  
MD  
TAPE/CDR  
INTEGRATED AMPLIFIER  
MODEL NOA. -933  
MAIN IN  
AUDIO OUT  
L
PRE OUT  
L
L
R
R
PHONO (MM)  
R
Ground wire  
Notes:  
• Do not connect a component that does not have an  
output volume control, because the sound will be out-  
put at maximum volume and may damage the A-933  
and your speakers.  
• To turn on the MAIN IN function, press the [MAIN  
IN] button for 3 seconds until the indicator lights up  
blue (page 19).  
• When the A-933 is used as a power amplifier, the  
remote controller and the following functions are dis-  
Notes:  
• If the turntable has a ground wire, connect it to  
A-933’s GND terminal. With some turntables, con-  
necting the ground wire may cause hum, in which  
case it should be disconnected.  
• If the turntable has a moving-coil (MC) type car-  
tridge, you’ll need a commercially available MC  
phono preamp. In this case, connect the turntable to  
the phono preamp’s input, and connect the phono  
preamp’s output to the A-933’s PHONO L/R jacks.  
abled: Volume control, Muting,  
system functions,  
Tone/Direct function, subwoofer output, and Record-  
ing. Some of these functions can be performed on the  
connected preamp.  
Connecting aTV or Other Component with  
an Audio Output  
Use an analog audio cable to connect the A-933’s LINE  
L/R jacks to the analog audio output jacks on the TV or  
other component, as shown.  
Connecting Another Component’s Power  
Cord  
The A-933 has an AC OUTLET on its rear panel. This  
can be used to connect the power cord of another audio  
component that you intend to use with the A-933.  
L
L
GND  
L
L
SPEA
B
R
R
R
R
L
PHONO (MM)  
TUNER  
L
CD  
LINE  
L
I  
N
E
L
R
L
SUBWOOFER  
PREOUT  
L
R
R
R
REMOTE  
OUT  
IN  
OUT  
IN  
CONTROL  
MAIN IN  
MD  
AC OUTLET  
SPEAKERS  
TAPE/CDR  
INTEGRATED AMPLIFIER  
MODEL NOA. -933  
B
A
AC 230-240V  
50 Hz  
R
L
UNSWITCHED  
CD  
LINE  
AC OUTLET  
AC 230-240V  
TOTAL 100W MAX.  
50 Hz  
UNSWITCHED  
R
L
R
L
TOTAL 100W MAX.  
R
REMOTE  
OUT  
IN  
CONTROL  
CAUTION: SPEAKER IMPEDANCE  
TAPE/CDR  
A
A
or  
+
B
B
:
:
4
8
OHMS MIN. /SPEAKER  
OHMS MIN. /SPEAKER  
INTEGRATED AMPLIFIER  
MODEL NOA. -933  
AUDIO OUT  
L
R
Note:  
Caution:  
If your TV has no audio output, you can connect the  
A-933 to an audio output on your VCR and use its tuner.  
• Make sure that the maximum power requirement of  
the component connected to the AC OUTLET does  
not exceed the capacity printed on the A-933’s rear  
panel (100W).  
15  
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*En_A933_02.fm Page 16 Tuesday, January 25, 2005 1:46 PM  
Connecting the A-933—Continued  
Connecting the Power Cord  
Connecting  
Components  
• Before connecting the power cord, connect all your  
speakers and audio components.  
• Turning on the A-933 may cause a momentary power  
surge, which might interfere with other electrical  
equipment on the same circuit. If this is a problem,  
plug the A-933 into a different branch circuit.  
With  
(Remote Interactive), you can control your  
-compatible Onkyo CD player, Tuner, and so on  
with the A-933’s remote controller.  
To use  
nection between the A-933 and each audio compo-  
nent.  
, you must make an analog audio con-  
Tuner (T-433) etc.  
ACCUCLOCK  
TUNING PRESET  
CLEAR  
MEMORY FM MODE  
BAND  
CHARACTER  
STANDBY/ON  
KEY MODE  
TUNING  
/
PRESET  
DISPLAY  
STANDBY  
A-933 (Preamp)  
To wall outlet  
M
D
LINE  
TAPE/CDR  
C
D
STANDBY/ON  
TUNER  
ON(G)  
STANDBY(R)  
PHONO  
POWER  
SUPER BASS  
BASS  
TREBLE  
PHONES  
A
B
TONE  
(R)  
DIRECT(G)  
MAIN IN  
ON  
OFF  
SPEAKERS  
MAX  
ON  
STA  
NDB  
Y
1
2
3
4
5
6
7
8
9
1
0/0  
>
1
0
GROU  
P
FM  
AM  
CD  
CLE  
AR  
MD  
TAP  
E
/C  
DR  
VOL  
UM  
E
P
R
E
S
E
T
M
U
T
I
N
G
P
RE  
S
E
T
VOL  
ER  
UM  
E
SLE  
EP  
TIM  
ENT  
ER  
MEM  
ORY  
CD Player (C-733) etc.  
INP  
UT  
REPE  
AT  
DISP  
LAY  
RAN  
DOM  
P
MO  
DE  
SCRO  
LL  
CLO  
CAL  
CK  
L
R
C
-
613  
S
STANDBY/ON  
DISPLAY  
STANDBY  
Notes:  
• Push each plug in all the way to make a good connec-  
tion.  
• Use only dedicated  
(No cables are supplied with the A-933.)  
• The A-933 has four jacks. They’re all the same,  
cables for  
connections.  
so you can use any of them.  
jacks should be connected to only Onkyo compo-  
nents. Connecting them to another manufacturer’s  
component may cause it to malfunction.  
• Some components may not support all  
functions.  
See the manuals supplied with your other Onkyo  
components for more information.  
16  
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*En_A933_02.fm Page 17 Tuesday, January 25, 2005 1:46 PM  
Enjoying Audio Sources  
Turning On the A-933  
Listening to Components  
Input selector  
Volume  
STANDBY/ON  
STANDBY indicator  
SPEAKERS A, B  
ON  
STANDBY  
/
M
D
LINE  
TAPE/CDR  
STANDBY/ON  
STANDBY  
ON  
C
D
STANDBY/ON  
1
5
2
6
3
7
4
8
TUNER
ON(G)  
STANDBY(R)  
ON(G)  
STANDBY(R)  
PHONO  
POWER  
9
>
10  
GROUP  
10/0  
B
ASS  
TREBLE  
POWER  
SUP  
ER BASS 
CLEAR  
PHONES  
A
II
ON  
OFF  
SPEA
FM  
AM  
CD  
TO  
N
E
(
R
)
PHONES  
A
B
MAIN IN  
ON  
OFF  
SPEAKERS  
MAX  
DIRECT (G  
)
MD  
POWER  
TAPE/CDR  
VOLUME  
Press the [POWER] button.  
The STANDBY indicator lights up.  
VOLUME  
/
PRESET  
PRESET  
1
MUTING  
MUTING  
POWER  
VOLUME  
TIMER  
SLEEP  
ON  
OFF  
Selecting Speaker Set A or B  
Press the [STANDBY/ON] button.  
Alternatively, press the remote control-  
ler’s [ON] button.  
2
You can select which set of speakers outputs sound, or  
you can use both sets at the same time.  
STANDBY/ON  
To output sound from the speakers connected to the  
SPEAKERS A terminals, press the SPEAKERS [A]  
button. The indicator above that button will light up. If a  
subwoofer is connected, that too will output sound.  
To output sound from the speakers connected to the  
SPEAKERS B terminals, press the SPEAKERS [B]  
button. The indicator above that button will light up. If a  
subwoofer is connected, that too will output sound.  
To output sound from all connected speakers, press the  
SPEAKERS [A] and SPEAKERS [B] button so that  
both indicators are on.  
The A-933 turns on and the  
STANDBY indicator lights up green.  
Remote  
controller  
Note:  
When it’s turned on, the A-933 outputs  
no sound for about five seconds. This  
allows the circuits to stabilize.  
ON  
To turn off the A-933, press the  
[STANDBY/ON] button. The A-933  
will enter Standby mode.  
If the A-933 is connected to other components via  
, press the remote controller’s [ON] button once  
to turn on the A-933, and press it again to turn on the  
other components.  
Turn the input selector to select  
the component that you want to  
listen to.  
1
MD  
LINE  
TAPE/CDR  
CD  
TAPE/CDR: Select to hear the compo-  
nent connected to the TAPE/CDR IN  
jacks.  
MD: Select to listen to the component  
connected to the MD IN jacks.  
LINE: Select to listen to the compo-  
nent connected to the LINE jacks.  
CD: Select to listen to the component  
connected to the CD jacks.  
TUNER: Select to listen to the compo-  
nent connected to the TUNER jacks.  
PHONO: Select to listen to the turnta-  
ble connected to the PHONO jacks.  
Turning on all system components simultaneously:  
TUNER  
You can set the A-933 so that all connected  
compo-  
PHONO  
nents are turned on with just one press of the remote con-  
troller’s [ON] button or the A-933’s [STANDBY/ON]  
button. To do this, turn on the A-933, and then press and  
hold the remote controller’s [ON] button for 16 seconds  
until the A-933 switches to Standby mode.You will then  
be able to turn on the A-933 and all system components  
with just one press of the remote controller’s [ON] but-  
ton or the [STANDBY/ON] button on any system com-  
ponent.  
Notes:  
• The A-933 is shipped with the POWER switch in the  
ON position ( ). When the power cord is connected  
for the very first time, the A-933 will go on Standby,  
and the STANDBY indicator will light up.  
• To completely shut down the A-933, set the POWER  
switch to the OFF position ( ).  
17  
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*En_A933_02.fm Page 18 Tuesday, January 25, 2005 1:46 PM  
Enjoying Audio Sources—Continued  
Notes:  
Start playback on the selected  
component.  
2
• Always turn down the volume before connecting your  
headphones.  
• All connected speakers are turned off while the head-  
phones plug is inserted in the PHONES jack.  
• The headphones output no sound while the MAIN IN  
function is on.  
To adjust the volume, use the  
A-933’s Volume control, or the  
remote controller’s VOLUME  
3
A-933  
[
]/[ ] buttons.  
Turn VOLUME control clockwise to  
increase the volume or counterclock-  
wise to decrease the volume.  
Remote  
controller  
Using the Tone Controls  
VOLUME  
While the MAIN IN function is on, the A-933’s tone  
controls have no effect.  
TONE(R)/DIRECT (G)  
M
D
LINE  
TAPE/CDR  
C
D
STANDBY/ON  
VOLUME  
TUNER  
ON(G)  
STANDBY(R)  
PHONO  
POWER  
SUPER BASS  
BASS  
TREBLE  
TO  
N
E
(
R
)
PHONES  
A
B
MAIN IN  
ON  
OFF  
SPEAKERS  
MAX  
DIRECT (G  
)
Muting the A-933 (remote controller only)  
TREBLE  
BASS  
SUPER BASS  
You can temporarily mute the output of the A-933.  
Press the remote controller’s  
[MUTING] button.  
The A-933 is muted, and the  
STANDBY indicator flashes green.  
Selecting Tone or Direct Mode  
1
MUTING  
The [TONE(R)/DIRECT(G)] button is  
used to select Tone or Direct mode.  
In Tone mode, the tone controls can be  
used to adjust the sound, and the  
TONE/DIRECT indicator lights up red  
(R).  
In Direct mode, the tone controls are bypassed, so you  
can enjoy a pure sound. The TONE/DIRECT indicator  
lights up green (G).  
TONE(R)  
DIRECT(G)  
To unmute the A-933, press the  
[MUTING] button again.  
Notes:  
• The Mute function will be cancelled  
if the remote controller’s VOLUME  
buttons are pressed or the A-933 is  
set to Standby.  
• When using the A-933 as a power  
amplifier (MAIN IN function), the  
Muting function has no effect.  
Adjusting the Super Bass  
The SUPER BASS control  
adjusts very-low bass sounds.  
SUPER BASS  
Turn it up to make them louder.  
Normally, it should be fully  
MAX  
turned down.  
Using Headphones  
Adjusting the Bass  
You can connect a pair of stereo headphones (1/4-inch  
phone plug) to the A-933’s PHONES jack for private  
listening.  
The BASS control adjusts bass  
sounds. Turn it up to make them  
BASS  
louder. Turn it down to make them  
quieter. Normally, it should be set  
midway.  
STANDBY/ON  
ON(G)  
STANDBY(R)  
PHONES  
Adjusting the Treble  
POWER  
SUPER BASS  
PHONES  
A
B
ON  
OFF  
SPEAKERS  
The TREBLE control adjusts treble  
sounds. Turn it up to make them  
TREBLE  
louder. Turn it down to make them  
quieter. Normally, it should be set  
midway.  
18  
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*En_A933_02.fm Page 19 Tuesday, January 25, 2005 1:46 PM  
Enjoying Audio Sources—Continued  
Using the MAIN IN Function  
Recording  
You can use the A-933 as power amplifier with a sepa-  
rate preamp. See page 15 for connection information.  
Unless you have the full consent of the  
copyright holder, copyright laws prohibit  
using your recordings for anything other  
than personal enjoyment!  
M
D
LINE  
TAPE/CDR  
C
D
STANDBY/ON  
TUNER  
ON(G)  
STANDBY(R)  
PHONO  
POWER  
SUPER BASS  
BASS  
TREBLE  
TO  
N
E
(
R
)
PHONES  
A
B
MAIN IN  
ON  
OFF  
SPEAKERS  
MAX  
DIRECT (G  
)
Input selector  
MAIN IN  
M
D
LINE  
TAPE/CDR  
C
D
STANDBY/ON  
TUNER  
ON(G)  
STANDBY(R)  
PHONO  
Press the [MAIN IN] button for 3  
seconds until the MAIN IN indica-  
tor lights up.  
1
POWER  
SUPER BASS  
BASS  
TREBLE  
TO  
N
E
(
R
)
PHONES  
A
B
MAIN IN  
ON  
OFF  
SPEAKERS  
MAX  
DIRECT (G  
)
The MAIN IN function comes on and  
the MAIN IN indicator lights up blue.  
MAIN IN  
Use the input selector to select  
the component that you want to  
record from.  
1
While the MAIN IN function is on,  
only audio from components con-  
nected to the preamp can be output.  
MD  
LINE  
TAPE/CDR  
CD  
TUNER  
PHONO  
To turn the MAIN IN function off,  
press the [MAIN IN] button for 3 sec-  
onds until the MAIN IN indicator goes  
off.  
Prepare the recorder:  
• Set the recorder so that it’s ready for  
recording.  
• If necessary, adjust the recording  
level on the recorder.  
2
3
Notes:  
• Do not connect a component that  
does not have an output volume con-  
trol to the MAIN IN jacks and use the  
MAIN IN function, because the  
sound will be output at maximum  
volume and may damage the A-933  
and your speakers.  
• See the recorder’s manual for more  
information.  
Start playback on the component  
selected in step 1.  
• While the MAIN IN function is on,  
the A-933’s Volume control has no  
effect. Before you turn off the  
MAIN IN function, make sure that  
the Volume control is not turned up  
high, to prevent any loud surprises.  
• While the MAIN IN function in on,  
the remote controller and the follow-  
ing A-933 functions are disabled:  
Note:  
If you select another input source dur-  
ing recording, the newly selected input  
source will be recorded.  
Notes:  
You can record on a recorder that’s connected to the  
MD OUT or TAPE/CDR OUT L/R jacks.  
• The tone controls have no effect on the signal being  
recorded.  
• When using the A-933 as a power amplifier (MAIN  
IN function), recording is not possible.  
• For information on one-touch CD dubbing, individual  
CD track dubbing, and timed recording with Onkyo  
Separate Collection components, see page 10.  
Volume control, Muting,  
system  
functions, Tone/Direct function, sub-  
woofer output, and Recording. Some  
of these functions can be performed  
on the connected preamp.  
19  
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*En_A933_02.fm Page 20 Tuesday, January 25, 2005 1:46 PM  
Troubleshooting  
If you have any trouble using the A-933, look for a solution here. If you can’t resolve the issue yourself, contact your  
Onkyo dealer.  
Power  
Can’t turn on the A-933.  
• Make sure that the power cord is properly plugged into the wall outlet.  
• Unplug the power cord from the wall outlet, wait five seconds or more, then plug it in again.  
• By default, pressing the A-933’s [STANDBY/ON] button once does not turn on all of the system components. You  
need to press the remote controller’s [ON] button again. Alternatively, you can set the A-933 so that all components  
do turn on simultaneously (page 17).  
The STANDBY indicator is flashing red.  
• The amp protection circuit has been activated. Remove the power cord from the wall outlet immediately and contact  
your Onkyo dealer.  
Audio  
There’s no sound or it’s very quiet.  
• When the A-933 is used as a power amplifier (MAIN IN indicator lights up blue), the sound from components con-  
nected to the preamp are output. To output the sound from a component that’s connected to the A-933, or to use the  
A-933 as a preamp, press the [MAIN IN] button for 3 seconds until the MAIN IN indicator goes off.  
• Make sure that all audio plugs are pushed in all the way (page 11).  
• Make sure that the inputs and outputs of all components are connected properly.  
• Make sure that the polarity of the speaker cables is correct and that the bare wires are in contact with the metal part  
of each speaker terminal (page 12).  
• Make sure that the correct input source is selected (page 17).  
• If the STANDBY indicator is flashing green, press the remote controller’s [MUTING] button to unmute the A-933  
(page 18).  
• Make sure that none of the cables are bent, twisted, or damaged.  
• Make sure that SPEAKERS A or B are selected. When only SPEAKERS A is selected (A indicator on), speakers  
connected to the SPEAKERS A terminals, and a connected subwoofer will output sound. When only SPEAKERS B  
is selected (B indicator on), speakers connected to the SPEAKERS B terminals, and a connected subwoofer will  
output sound.  
• To use a turntable with a moving-coil (MC) type cartridge, you need a commercially available MC phono preamp  
(page 15).  
Noise can be heard.  
• Using cable ties to bundle audio cables with power cords, speaker cables, and so on may degrade the audio perfor-  
mance, so don’t bundle them together.  
• An audio cable may be picking up interference. Try repositioning your cables.  
The tone controls don’t work.  
• If the TONE/DIRECT indicator is green, Direct mode is selected and the tone controls have no effect. Press the  
[TONE/DIRECT] button to select Tone mode. The TONE/DIRECT indicator will turn red (page 18).  
Remote Controller  
The remote controller doesn’t work.  
• Make sure that the batteries are installed with the correct polarity (page 9).  
• Install new batteries. Don’t mix different types of batteries or old and new batteries (page 9).  
• Make sure that the remote controller is not too far away from the A-933 and that there’s no obstruction between the  
remote controller and the A-933’s remote control sensor (page 9).  
• Make sure that the A-933 is not subjected to direct sunshine or inverter-type florescent lights. Relocate if necessary  
(page 9).  
• If the A-933 is installed in a rack or cabinet with colored glass doors, the remote controller may not work reliably  
when the doors are closed (page 9).  
Can’t control other components?  
• If it’s an Onkyo component, make sure that the  
only an cable won’t work.  
cable and analog audio cable are connected properly. Connecting  
20  
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*En_A933_02.fm Page 21 Tuesday, January 25, 2005 1:46 PM  
Troubleshooting—Continued  
Recording  
Can’t record.  
• The component connected to the MAIN IN jacks cannot be recorded.  
• When using the A-933 as a power amplifier (MAIN IN function), recording is not possible.  
Others  
The VOLUME control doesn’t work.  
• When using the A-933 as a power amplifier (MAIN IN function), theVolume control has no effect. Adjust the volume  
on the connected preamp instead.  
The Muting function doesn’t work.  
• When using the A-933 as a power amplifier (MAIN IN function), the Muting function does not work. Use the muting  
function on the connected preamp instead.  
The A-933 contains a microcomputer for signal processing and control functions. In very rare  
situations, severe interference, noise from an external source, or static electricity may cause it to  
lock up. In the unlikely event that this happens, unplug the power cord from the wall outlet, wait at  
least five seconds, and then plug it back in again.  
Onkyo is not responsible for damages (such as CD rental fees) due to unsuccessful recordings  
caused by the unit’s malfunction. Before you record important data, make sure that the material  
will be recorded correctly.  
To reset the A-933 to its factory defaults, with it turned on, while holding down the [MAIN IN]  
button, press the [STANDBY/ON] button.The input selector indicators light up briefly, and then the  
A-933 enters Standby mode.  
21  
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*En_A933_02.fm Page 22 Tuesday, January 25, 2005 1:46 PM  
Specifications  
Power output:  
Dynamic power:  
80 W + 80 W (8 , 1 kHz, DIN)  
270 W + 270 W (3 , Front)  
220 W + 220 W (4 , Front)  
110 W + 110 W (8 , Front)  
0.08% (1 kHz, 1 W)  
THD (total harmonic distortion):  
Damping factor:  
25 (Front, 1 kHz, 8 )  
Input sensitivity and impedance:  
200 mV, 50 k(LINE)  
2.5 mV, 50 k(PHONO MM)  
200 mV, 2.2 k(REC OUT)  
130 mV (MM, 1 kHz, 0.5%)  
10 Hz–60 kHz, +1 dB–3 dB (CD)  
+8 dB, –8 dB, 100 Hz (BASS)  
+8 dB, –8 dB, 20 kHz (TREBLE)  
+10 dB, 80 Hz (SUPER BASS)  
100 dB (LINE, IHF-A)  
Output level and impedance:  
Phono overload:  
Frequency response:  
Tone control:  
SN ratio:  
70 dB (PHONO, IHF-A)  
4–16 Ω  
Speaker impedance:  
Power supply:  
AC 230-240 V, 50 Hz  
100 W  
0.9 W  
275 × 103 × 328 mm  
7.5 kg  
Power consumption:  
Stand-by power consumption:  
Dimensions (W × H × D):  
Weight:  
Analog inputs:  
Analog outputs:  
Subwoofer pre outputs:  
Speaker outputs:  
Phones:  
PHONO, TUNER, CD, LINE, MD, TAPE/CDR, MAIN IN  
MD, TAPE/CDR  
1
2 (A, B)  
1
Specifications and features are subject to change without notice.  
22  
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*En_A933_02.fm Page 23 Tuesday, January 25, 2005 1:46 PM  
23  
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*En_A933_02.fm Page 24 Tuesday, January 25, 2005 1:46 PM  
Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN  
Tel: 072-831-8023 Fax: 072-831-8124  
ONKYO U.S.A. CORPORATION  
18 Park Way, Upper Saddle River, N.J. 07458, U.S.A.  
Tel: 201-785-2600 Fax: 201-785-2650 http://www.us.onkyo.com/  
ONKYO EUROPE ELECTRONICS GmbH  
Liegnitzerstrasse 6, 82194 Groebenzell, GERMANY  
Tel: +49-8142-4401-0 Fax: +49-8142-4401-555 http://www.eu.onkyo.com/  
ONKYO EUROPE UK Office  
Suite 1, Gregories Court, Gregories Road, Beaconsfield, Buckinghamshire, HP9 1HQ  
UNITED KINGDOM Tel: +44-(0)1494-681515 Fax: +44(0)-1494-680452  
HOMEPAGE  
ONKYO CHINA LIMITED  
Units 2102-2107, Metroplaza Tower I, 223 Hing Fong Road, Kwai Chung,  
N.T., HONG KONG Tel: 852-2429-3118 Fax: 852-2428-9039  
Printed in Japan  
I0501-1  
SN 29343979  
(C) Copyright 2005 ONKYO CORPORATION Japan. All rights reserved.  
* 2 9 3 4 3 9 7 9 *  
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