Onkyo Stereo Amplifier A 905TX User Manual

English  
Integrated Stereo Amplifier  
A-905TX  
Instruction Manual  
INTEGRATED STEREO AMPLIFIER  
WIDE RANGE AMP TECHNOLOGY  
VOLUME  
INPUT  
CD  
MD  
TUNER  
TAPE  
STANDBY/ON  
STANDBY  
LINE/DVD CDR/PC  
DIRECT  
SOURCE DIRECT  
DIRECT  
BASS  
TREBLE  
BALANCE  
ACOUSTIC  
PRESENCE  
POWER  
PHONES  
TONE  
ON  
OFF  
OFF/1/2  
+
+
L
R
A-905TX  
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Important Safeguards  
1. Read Instructions – All the safety and 10. Power Sources – The appliance should be  
operating instructions should be read before  
the appliance is operated.  
connected to a power supply only of the type  
described in the operating instructions or as  
marked on the appliance.  
2. Retain Instructions – The safety and  
operating instructions should be retained for 11. Polarization If the appliance is provided with  
future reference.  
a polarized plug having one blade wider than  
the other, please read the following information:  
3. Heed Warnings – All warnings on the  
appliance and in the operating instructions  
should be adhered to.  
The polarization of the plug is a safety feature.  
The polarized plug will only fit the outlet one  
way. If the plug does not fit fully into the out-  
let, try reversing it. If there is still trouble, the  
user should seek the services of a qualified elec-  
trician. Under no circumstances should the user  
attempt to defeat the polarization of the plug.  
4. Follow Instructions – All operating and use  
instructions should be followed.  
5. Water and Moisture – The appliance should  
not be used near water – for example, near  
a bathtub, washbowl, kitchen sink, laundry  
tub, in a wet basement, or near a swimming  
pool, and the like.  
12. Power-Cord Protection – Power-supply  
cords should be routed so that they are not  
likely to be walked on or pinched by items  
placed upon or against them, especially near  
plugs, convenience receptacles, and the  
point where they exit from the appliance.  
6. Carts and Stands – The appliance should  
be used only with a cart or stand that is rec-  
ommended by the manufacturer.  
6A. An appliance and cart  
13. Cleaning – The appliance should be cleaned  
PORTABLE CART WARNING  
combination should  
only as recommended by the manufacturer.  
be moved with care.  
Quick stops, excessive  
force, and uneven sur-  
faces may cause the  
14. Nonuse Periods – The power cord of the ap-  
pliance should be unplugged from the outlet  
when left unused for a long period of time.  
appliance and cart  
combination to over-  
turn.  
15. Object and Liquid Entry – Care should be taken  
sothatobjectsdonotfallandliquidsarenotspilled  
into the enclosure through openings.  
S3125A  
7. Wall or Ceiling Mounting – The appliance 16. Damage Requiring Service – The appliance  
should be mounted to a wall or ceiling only  
as recommended by the manufacturer.  
should be serviced by qualified service per-  
sonnel when:  
A. The power-supply cord or the plug has  
been damaged; or  
B. Objects have fallen, or liquid has been  
spilled into the appliance; or  
C. The appliance has been exposed to rain; or  
D. The appliance does not appear to oper-  
ate normally or exhibits a marked change  
in performance; or  
E. The appliance has been dropped, or the  
enclosure damaged.  
8. Ventilation – The appliance should be situ-  
ated so that its location or position does not  
interfere with its proper ventilation. For ex-  
ample, the appliance should not be situated  
on a bed, sofa, rug, or similar surface that  
may block the ventilation openings; or if  
placed in a built-in installation, such as a  
bookcase or cabinet that may impede the  
flow of air through the ventilation openings,  
there should be free space of at least 20 cm  
(8 in.) and an opening behind the appliance.  
17. Servicing – The user should not attempt to ser-  
vice the appliance beyond that described in the  
operating instructions. All other servicing should  
be referred to qualified service personnel.  
9. Heat – The appliance should be situated away  
from heat sources such as radiators, heat reg-  
isters, stoves, or other appliances (including  
amplifiers) that produce heat.  
3
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Precautions  
1. Warranty Claim  
For British model  
You can find the serial number on the rear panel  
of this unit. In case of warranty claim, please re-  
port this number.  
Replacement and mounting of an AC plug on the  
power supply cord of this unit should be performed  
only by qualified service personnel.  
2. Recording Copyright  
IMPORTANT  
Recording of copyrighted material for other than  
personal use is illegal without permission of the  
copyright holder.  
The wires in the mains lead are coloured in accor-  
dance with the following code:  
Blue : Neutral  
Brown : Live  
3. AC Fuse  
The fuse is located inside the chassis and is not As the colours of the wires in the mains lead of  
user-serviceable. If power does not come on, con- this apparatus may not correspond with the  
tact your Onkyo authorized service station.  
coloured markings 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.  
The wire which is coloured brown must be con-  
nected to the terminal which is marked with the  
letter L or coloured red.  
4. Care  
From time to time you should wipe the front and  
rear panels and the cabinet with a soft cloth. For  
heavier dirt, dampen a soft cloth in a weak solu-  
tion of mild detergent and water, wring it out dry,  
and wipe off the dirt. Following this, dry immedi-  
ately with a clean cloth. Do not use rough mate-  
rial, thinners, alcohol or other chemical solvents  
IMPORTANT  
or cloths since these could damage the finish or A 5 ampere fuse is fitted in this plug. Should the fuse  
remove the panel lettering.  
need to be replaced, please ensure that the replace-  
ment fuse has a rating of 5 amperes and that it is ap-  
proved by ASTA or BSI to BS1362. Check for the ASTA  
mark or the BSI mark on the body of the fuse.  
IF THE FITTED MOULDED PLUG IS UNSUITABLE FOR  
THE SOCKET OUTLET IN YOUR HOME THEN THE  
FUSE SHOULD BE REMOVED AND THE PLUG CUT  
OFF AND DISPOSED OF SAFELY. THERE IS A DAN-  
GER OF SEVERE ELECTRICAL SHOCK IF THE CUT OFF  
PLUG IS INSERTED INTO ANY 13 AMPERE SOCKET.  
If in any doubt, please consult a qualified electrician.  
5. Power  
WARNING  
BEFORE PLUGGING IN THE UNIT FOR THE FIRST  
TIME, READ THE FOLLOWING SECTION CARE-  
FULLY.  
The voltage of the available power supply differs  
according to country or region. Be sure that the  
power supply voltage of the area where this unit  
will be used meets the required voltage (e.g., AC  
230 V, 50 Hz or AC 120 V, 60 Hz) written on the  
rear panel.  
For Canadian model  
For models having a power cord with a polarized  
plug:  
CAUTION: TO PREVENT ELECTRIC SHOCK,  
MATCH WIDE BLADE OF PLUG TO WIDE SLOT,  
FULLY INSERT.  
Declaration of Conformity  
We,  
ONKYO EUROPE  
ELECTRONICS GmbH  
INDUSTRIESTRASSE 20  
82110 GERMERING,  
GERMANY  
Modele pour les Canadien  
declare in own responsibility, that the ONKYO product described  
in this instruction manual is in compliance with the corresponding  
technical standards such as EN60065, EN55013, EN55020 and  
EN61000-3-2, -3-3.  
Sur les modèles dont la fiche est polarisée:  
ATTENTION: POUR ÉVITER LES CHOCS  
ÉLECTRIQUES, INTRODUIRE LA LAME LA PLUS  
LARGE DE LA FICHE DANS LA BORNE  
CORRESPONDANTE DE LA PRISE ET POUSSER  
JUSQU’AU FOND.  
GERMERING, GERMANY  
A.HORIUCHI  
ONKYO EUROPE ELECTRONICS GmbH  
4
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Table of contents  
Connections  
Connecting to the ONKYO Separate Collection Series components .................. 6  
Connecting to components other than the Separate Collection Series............ 12  
Connecting speaker systems .......................................................................... 15  
Preparations  
Preparing the remote controller...................................................................... 17  
Operation  
Turning the unit on ........................................................................................ 18  
Choosing the required source ........................................................................ 19  
Adjusting the sound....................................................................................... 20  
Source Direct function/Muting/Listening with the headphones ....................... 21  
Recording ...................................................................................................... 22  
Other Information  
Troubleshooting ............................................................................................. 23  
Specifications................................................................................................. 24  
Index to parts and controls............................................................................. 25  
Supplied accessories  
Check that the following accessories are supplied with this unit.  
Remote controller x 1  
(RC-456S)  
Batteries x 2  
(Size AA, R6, or UM-3)  
5
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Connections  
Connecting to the ONKYO Separate Collection Series components  
This section introduces you to the other Separate Collection Series system components and their con-  
venient system functions, followed by connecting instructions.  
The following Separate Collection Series components are commercially available:  
T-405TX ............ Stereo Tuner  
• K-505TX ........... Stereo Cassette Tape Deck  
• C-705TX ........... Compact Disc (CD) Player (Not available in U.S. and Canada)  
• C-707CHX ........ Compact Disc (CD) Changer (Only available in U.S. and Canada)  
• MD-105TX ........ Minidisc (MD) Recorder (Not available in U.S. and Canada)  
• CDR-205TX ...... Compact Disc (CD) Recorder (available only in part of Asia)  
Note that the available components may vary according to the area.  
Combination use of the unit with the above system components enables you to operate the following  
convenient functions:  
• Auto Power On  
You can turn on the unit by pressing the STANDBY/ON switch on one of the system components.  
(The unit's POWER switch must be set to ON.)  
You can turn on all the system components at the same time by pressing the STANDBY/ON switch  
on the unit. (The unit's POWER switch must be set to ON.)  
You can turn off each component not in use independently afterwards.  
• Direct Change  
Press the following button on the component you want to operate to switch the units input selector  
automatically to that component:  
– The play button on the CD player (or changer), MD recorder, or stereo cassette tape deck, or  
– The PRESET  
/
buttons on the tuner.  
• Remote Control Operation  
All the system components can be operated using the supplied remote controller. The remote con-  
trol buttons operate in the same way as the buttons on each component with the same indication.  
• Program Timer  
You can operate timer playback and recording using T-405TX. (Refer to the T-405TX instruction  
manual for more information.)  
• Sleep Timer  
You can fall asleep to a music/radio program using the timer. (Refer to the T-405TX instruction  
manual for more information.)  
• CD Dubbing  
Simple CD dubbing using a stereo cassette tape deck or MD recorder is possible with the pressing of  
a single button (CD dubbing function using an MD recorder is not avalable on the C-707CHX). (Refer  
to the K-505TX or MD-105TX Instruction Manual for more information).  
• CD/MD Synchro Recording  
When using a stereo cassette tape deck, MD recorder or CD recorder to record from the CD player or  
when using a stereo cassette tape deck to record from an MD recorder, you can record with simply  
starting on a CD player or MD recorder. (Refer to the K-505TX, MD-105TX or CDR-205TX instruction  
manual for more information.)  
• Dubbing a specific track from CD  
You can specify a track on a CD and easily dub it to a connected MD recorder or CD recorder. (Refer  
to the MD-105TX or CDR-205TX instruction manual for more information.)  
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6
Arranging the system components  
Combination example 1  
Select the tuner T-405TX, CD player C-705TX (or CD changer C-707CHX), and stereo cassette tape  
deck K-505TX in addition to this unit. When you arrange these components, stack them as shown  
below.  
Vertical way stacking  
Horizontal way stacking  
Tuner  
(T-405TX)  
Tuner  
(T-405TX)  
Stereo cassette tape  
deck (K-505TX)  
Amplifier – this unit  
(A-905TX)  
Stereo cassette tape  
deck (K-505TX)  
CD player  
Amplifier – this unit  
(A-905TX)  
CD player  
(C-705TX) or  
CD changer  
(C-707CHX)  
(C-705TX) or  
CD changer  
(C-707CHX)  
Combination example 2  
Select the tuner T-405TX, CD player C-705TX and MD recorder MD-105TX in addition to this unit.  
When you arrange these components, stack them as shown below.  
Vertical way stacking  
Horizontal way stacking  
Tuner  
(T-405TX)  
MD recorder  
(MD-105TX)  
Tuner  
(T-405TX)  
Amplifier – this unit  
(A-905TX)  
MD recorder  
(MD-105TX)  
CD player  
(C-705TX)  
CD player  
(C-705TX)  
Amplifier – this unit  
(A-905TX)  
Tip  
In addition to the above combination examples, you can also connect both the MD recorder MD-105TX  
and stereo cassette tape deck K-505TX with the tuner T-405TX, CD player C-705TX, and this unit.  
7
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Connecting to the ONKYO Separate Collection Series components  
Connecting to the audio connector  
Before connecting  
• Do not connect the units AC power cord (mains lead) to a wall outlet (the mains) until you have  
completed all the other connections, including  
“Connecting speaker systems” on page 15.  
and AC OUTLET connections on page 11 and  
• On each pair of connectors, a red connector (marked R) corresponds to the right channel, and a  
white connector (marked L) to the left channel. Connect white plugs of audio connection cables to  
L connectors and connect red plugs of audio connection cables to R connectors.  
• Please refer to the instruction manual for each component when you make any connections.  
Audio connection cable  
To L connector  
To R connector  
(White)  
(Red)  
(White)  
(Red)  
To L connector  
To R connector  
• Insert the plug securely. If the connection is incomplete, noise or malfunction may result.  
Improper connection  
Insert completely  
• When you use a digital audio optical cable, do not bend it sharply nor coil it tightly.  
• Bundling an audio connection cable with the power cord or speaker cord may degrade the sound  
quality.  
• Be sure to use the  
cable, supplied with each component (except for the A-905TX) to connect to  
the remote control connector. If the connection is incomplete, you will be unable to operate the  
device using the remote controller.  
• CD players and MD recorders use heat-sensitive parts. Do not place them on top of the amplifier.  
To connect both the MD recorder MD-105TX and stereo cassette tape deck K-505TX to the  
unit:  
Connect the MD recorder to the unit following the “Connections for combination example 2” on the  
next page and connect the stereo cassette tape deck to the unit following the “Connections for com-  
bination example 1.”  
The 230-240 V model is shown in the following illustrations.  
8
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Connections for combination example 1  
(
)
(
)
OUT REC IN PLAY  
L
OUT(REC) IN(PLAY)  
CAUTION:  
SPEAKER IMPEDANCE  
OHMS MIN./SPEAKER  
4
OUTPUT  
L
L
L
L
SPEAKERS  
OUTPUT  
R
R
REMOTE  
REMOTE  
CONTROL  
TUNER LINE/DVD  
OUT(REC) IN(PLAY)  
TAPE  
CONTROL  
R
OUT(REC) IN(PLAY)  
AC OUTLET  
L
AC 230-240V  
UNSWITCHED  
100W MAX.  
50Hz  
L
R
L
ANTENNA  
FM  
AC OUTLET  
R
R
R
AC 230-240V  
50Hz  
SWITCHED  
100W MAX.  
OUT  
IN  
SUBWOOFER  
PRE OUT  
CDR/PC  
CD  
MD  
PROCESSOR  
TUNER LINE/DVD  
TAPE  
(
)
(
)
(
)
(
)
OUT REC IN PLAY  
OUT REC IN PLAY  
R
Tuner (T-405TX)  
Amplifier  
L
– this unit (A-905TX)  
R
CDR/PC  
CD  
MD  
ANALOG  
OUTPUT  
INPUT OUTPUT  
(REC) (PLAY)  
ANALOG  
OUTPUT  
AC OUTLET  
AC 230-240V  
UNSWITCHED  
100W MAX.  
L
50Hz  
REMOTE  
CONTROL  
R
DIGITAL OUTPUT  
OPTICAL 2  
INPUT OUTPUT  
1
"CLASS LASER  
1
REMOTE  
(REC)  
(PLAY)  
L
CONTROL  
PRODUCT"  
L
L
D
R
D
AC OUTLET  
50Hz  
AC 230-240V  
UNSWITCHED  
100W MAX.  
R
R
CD player (C-705TX) or  
CD changer (C-707CHX)  
Stereo cassette tape  
deck (K-505TX)  
: Signal flow  
Connections for combination example 2  
(
)
(
)
OUT REC IN PLAY  
L
L
Amplifier  
– this unit (A-905TX)  
R
R
Tuner (T-405TX)  
TUNER LINE/DVD  
TAPE  
(
)
(
)
(
)
(
)
OUTPUT  
OUT REC IN PLAY  
OUT REC IN PLAY  
L
OUT(REC) IN(PLAY)  
CAUTION:  
OUTPUT  
SPEAKER IMPEDANCE  
4
OHMS MIN./SPEAKER  
REMOTE  
CONTROL  
L
L
L
SPEAKERS  
AC OUTLET  
AC 230-240V  
UNSWITCHED  
100W MAX.  
L
50Hz  
R
R
REMOTE  
TUNER LINE/DVD  
OUT(REC) IN(PLAY)  
TAPE  
CONTROL  
OUT(REC) IN(PLAY)  
R
R
L
ANTENNA  
F
L
AC OUTLET  
R
AC 230-240V  
50Hz  
R
SWITCHED  
100W MAX.  
OUT  
IN  
SUBWOOFER  
PRE OUT  
CDR/PC  
CD  
MD  
PROCESSOR  
R
CDR/PC  
CD  
MD  
ANALOG  
ANALOG  
OUTPUT  
DIGITAL OUTPUT  
OPTICAL  
INPUT OUTPUT  
DIGITAL INPUT  
OPTICAL  
(
)
(
)
PLAY  
REC  
1
2
1
2
L
L
L
R
R
R
ANALOG  
OUTPUT  
AC OUTLET  
AC 230-240V  
UNSWITCHED  
100W MAX.  
L
50Hz  
ANALOG  
INPUT OUTPUT  
(REC) (PLAY)  
REMOTE  
CONTROL  
REMOTE  
CONTROL  
R
DIGITAL OUTPUT  
OPTICAL  
DIGITAL INPUT  
OPTICAL  
1
2
L
L
"CLASS  
1
LASER  
1
2
PRODUCT"  
R
R
CD player (C-705TX)  
: Signal flow  
MD recorder (MD-105TX)  
Optical cable  
9
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Connecting to the ONKYO Separate Collection Series components  
Connecting a CD Recorder CDR-205TX:  
ANALOG  
(
)
(
)
OUT REC IN PLAY  
INPUT  
(REC)  
OUTPUT  
(PLAY)  
REMOTE  
CONTROL  
L
OUT(REC) IN(PLAY)  
CAUTION:  
SPEAKER IMPEDANCE  
OHMS MIN./SPEAKER  
4
DIGITAL  
OPTICAL  
L
L
SPEAKERS  
L
R
R
L
L
INPUT  
1
INPUT  
2
OUTPUT  
ANALOG  
REMOTE  
TUNER LINE/DVD  
OUT(REC) IN(PLAY)  
TAPE  
CONTROL  
OUT(REC) IN(PLAY)  
INPUT  
(REC)  
OUTPUT  
(PLAY)  
REMOTE  
CONTROL  
R
DIGITAL  
OPTICAL  
INPUT  
1
INPUT  
2
OUTPUT  
L
L
L
AC OUTLET  
R
AC 230-240V  
50Hz  
R
R
R
R
R
SWITCHED  
100W MAX.  
OUT  
IN  
SUBWOOFER  
PRE OUT  
K
L
CDR/PC  
CD  
MD  
PROCESSOR  
CDR/PC  
CD  
CD Recorder  
(CDR-205TX)  
Amplifier – this unit  
(A-905TX)  
: Signal flow  
Connecting a processor such as ED-205:  
L
OUT(REC) IN(PLAY)  
CAUTION:  
SPEAKER IMPEDANCE  
4
OHMS MIN./SPEAKER  
L
L
S
VIDEO  
SUB WOOFER  
PRE OUT  
REMOTE  
VIDEO  
CONTROL  
SPEAKERS  
S
U
R
R
O
U
N
D
R
R
CENTER  
R
L
REMOTE  
IN  
OUT  
IN  
MONITOR  
OUT  
IN  
OUT IN MONITOR OUT  
VIDEO-2  
CENTER  
TUNER LINE/DVD  
OUT(REC) IN(PLAY)  
TAPE  
CONTROL  
R
VIDEO-1  
VIDEO-2  
VIDEO-1  
OUT(REC) IN(PLAY)  
L
L
CAUTION:  
SPEAKER  
IMPEDANCE  
SPEAKERS  
AC OUTLET  
R
AC 230-240V  
50Hz  
R
6
OHMS MIN.  
SWITCHED  
100W MAX.  
OUT  
IN  
SUBWOOFER  
PRE OUT  
IN  
OUT  
IN  
IN  
OUT  
FRONT SURROUND  
MULTI  
SUB-  
/SPEAKER  
CDR/PC  
CD  
MD  
PROCESSOR  
VIDEO-1  
VIDEO-2  
PROCESSOR  
WOOFER  
CHANNEL INPUT  
N  
OUT  
FRONT  
OUT  
IN  
SUBWOOFER  
PRE OUT  
PROCESSOR  
PROCESSOR  
Processor  
(e.g. ED-205)  
Amplifier – this unit  
(A-905TX)  
: Signal flow  
Note:  
Jumper plugs have been installed on the A-905TXs PROCESSOR connectors. To connect an AV sur-  
round processor, such as ED-205, remove the jumper plugs, then connect pin cables (see page 13).  
10  
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Connecting the  
connectors and AC OUTLETS  
Before connecting  
• The hookups on page 9, 10 is needed in addition to the  
(for remote control operations) and AC  
OUTLET (for power supply to each component) hookups on this page.  
• Each component has two  
connectors. There is no difference between those connectors. The  
components may be connected in any order.  
• The  
cable for connecting the  
connectors is supplied with each component (not supplied with  
the unit).  
Connections  
To use the Clock/Timer function of the tuner T-405TXs, connect the power cord as shown below and  
connect the cable and audio connection cables (see page 9, 10). Be sure to connect the power cord  
of the T-405TX to an AC outlet that supplies continuous power. Also, turn on the POWER switch on the  
A-905TX to use the Timer function.  
Stereo cassette tape  
deck (K-505TX) or  
MD recorder (MD-  
105TX)  
To wall outlet  
OUTPUT  
REMOTE  
CONTROL  
INPUT OUTPUT  
REMOTE  
(REC)  
(PLAY)  
AC OUTLET  
AC 230-240V  
UNSWITCHED  
100W MAX.  
L
CONTROL  
50Hz  
L
D
R
ANTENNA  
FM  
75  
R
AC OUTLET  
AC 230-240V  
50Hz  
UNSWITCHED  
100W MAX.  
Tuner (T-405TX)  
(The illustration is  
MD-105TX.)  
L
OUT(REC) IN(PLAY)  
CAUTION:  
SPEAKER IMPEDANCE  
4 OHMS MIN./SPEAKER  
ANALOG  
OUTPUT  
L
L
AC OUTLET  
AC 230-240V  
UNSWITCHED  
100W MAX.  
L
SPEAKERS  
50Hz  
CD player (C-705TX)  
or  
R
R
REMTE  
CONTROL  
REMOTE  
R
DIGITAL OUTPUT  
OPTICAL 2  
Amplifier – this unit  
(A-905TX)  
TUNER LINE/DVD  
OUT(REC) IN(PLAY)  
TAPE  
CONROL  
R
OUT(REC) IN(PLY)  
1
"CLASS  
PRODUCT"  
1
LASER  
L
AC OUTLET  
R
AC 230-240V  
50Hz  
SWITCHED  
100W MAX.  
OUT  
IN  
SUBWOOFER  
PRE OUT  
CDR/PC  
CD  
MD  
PROCESSOR  
CD changer (C-  
707CHX)  
Note:  
If you have a CD Recorder CDR-205TX, connect the CDR-205TXs  
connector on the A-905TX.  
connector to an available  
If you connect the power cord as shown below, you can turn off the power to the entire system by  
simply turning off the POWER switch on the amplifier A-905TX.  
Note:  
K-505TX or  
MD-105TX  
T-405TX  
If the system is connected so that  
you can use the tuners T-405TX  
OUTPUT  
REMOTE  
CONTROL  
INPUT OUTPUT  
Clock/Timer function, turning off  
REMOTE  
(REC)  
(PLAY)  
AC OUTLET  
L
CONTROL  
AC 230-240V  
UNSWITCHED  
100W MAX.  
50Hz  
L
D
R
ANTENNA  
FM  
75  
the power to the entire system will  
turn off the power to the tuner,  
and the Clock and Timer functions  
will no longer function. If you wish  
to use the clock or Timer function,  
leave the POWER switch set to  
ON.  
R
AC OUTLET  
AC 230-240V  
50Hz  
UNSWITCHED  
100W MAX  
.
C-705TX or  
C-707CHX  
A-905TX  
L
OUT(REC) IN(PLAY)  
CAUTION:  
SPEAKER IMPEDANCE  
OHMS MIN./SPEAKER  
ANALOG  
OUTPUT  
4
L
L
To wall  
outlet  
AC OUTLET  
AC 230-240V  
UNSWITCHED  
100W MAX.  
L
SPEAKERS  
50Hz  
R
R
REMOTE  
CONTROL  
REMOTE  
R
DIGITAL OUTPUT  
OPTICAL 2  
TUNER LINE/DVD  
OUT(REC) IN(PLAY)  
TAPE  
OUT(REC) IN(PLAY)  
CONTROL  
R
1
"CLASS  
PRODUCT"  
1
LASER  
L
AC OUTLET  
R
AC 230-240V  
50Hz  
SWITCHED  
100W MAX.  
OUT  
IN  
SUBWOOFER  
PRE OUT  
CDR/PC  
CD  
MD  
PROCESSOR  
11  
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Connecting to components other than the  
Separate Collection Series  
Connecting audio/video equipment to audio connectors  
Before connecting  
• Do not connect the AC power cord (mains lead) to the wall outlet (the mains) until you have com-  
pleted all the other connections including the sound processor connections on the next page, the  
connections on page 14, and the speaker connections on page 15.  
• On each pair of connectors, a red connector (marked R) corresponds to the right channel, and a  
white connector (marked L) to the left channel.Connect white plugs of audio connection cables to L  
connectors and connect red plugs of audio connection cables to R connectors .  
Audio connection cable  
To L connector  
To R connector  
(White)  
(Red)  
(White)  
(Red)  
To L connector  
To R connector  
• Please refer to the instruction manual for each component when  
you make any connections.  
Improper connection  
• Insert the plug securely. If the connection is incomplete, noise  
or malfunction may result.  
• If you are using an audio optical cable, do not bend or wrap it  
tightly.  
Insert completely  
Connections  
Stereo cassette  
tape deck  
DVD player or  
Tuner  
VCR, etc.  
AUDIO  
OUT  
AUDIO OUT  
REC  
INPUT  
PLAY  
OUTPUT  
Amplifier  
– this unit (A-905TX)  
(
)
(
)
OUT REC IN PLAY  
L
OUT(REC) IN(PLAY)  
CAUTION:  
L
L
SPEAKER IMPEDANCE  
L
L
4
OHMS MIN./SPEAKER  
SPEAKERS  
R
R
REMOTE  
TUNER LINE/DVD  
OUT(REC) IN(PLAY)  
TAPE  
CONTROL  
R
OUT(REC) IN(PLAY)  
L
R
R
AC OUTLET  
R
AC 230-240V  
50Hz  
SWITCHED  
100W MAX.  
OUT  
IN  
SUBWOOFER  
PRE OUT  
CDR/PC  
CD  
MD  
PROCESSOR  
TUNER LINE/DVD  
TAPE  
(
)
(
)
(
)
(
)
OUT REC IN PLAY  
OUT REC IN PLAY  
L
(illustration is 230-240 V model)  
Sound processor  
(such as a signal processor and  
a graphic equalizer)  
R
IN  
OUT  
PROCESSOR  
CDR/PC  
CD  
MD  
: Signal flow  
REC  
INPUT  
PLAY  
OUTPUT  
OUTPUT  
OUTPUT  
CD recorder or audio  
processor for PC  
MD recorder  
CD player  
12  
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About the LINE/DVD connector  
You can connect this connector to the audio output of video devices, such as a DVD player, Satelite  
tuner, VCR, or the audio output of a second CD player or tape deck.  
Note:  
You cannot connect a turntable to this connector. If you wish to connect a turntable, obtain a phono  
equalizer at a store and connect it as described in the instruction manual that comes with the phono  
equalizer.  
About the CDR/PC, MD, and TAPE connectors  
You can also connect a second MD recorder or tape deck to the CDR/PC connector, and/or connect a  
second device to the MD or TAPE connector. (If you try to connect an Onkyo tape deck, MD recorder, or  
CD recorder that has  
connections.)  
connectors in this way, a malfunction may occur. Do not use the  
cables for  
You can connect a digital audio processor for a personal computer to the CDR/PC connector.  
About the processor’s connectors  
You can connect a sound processor (e.g. graphic equalizer, surround processor, etc.) to the unit.  
Before connecting  
• Disconnect the jumper plugs using the PROCESSOR connectors.  
– Please retain them for future use.  
– Never connect the jumper plugs to the other connectors, as this may cause the unit to malfunc-  
tion, so that the sound is not reproduced.  
– If you do not use the PROCESSOR connectors, reconnect the jumper plugs to them firmly.  
Note:  
When connecting jumper plugs, make sure you hold the plugs horizontally as shown in the figure and  
connect each plug to the IN and OUT jacks.  
Jumper plug  
IN  
OUT  
PROCESSOR  
Connect the sound processor to the unit.  
This unit  
INPUT  
L
(
)
(
OUT REC IN PLAY  
)
CAUTION:  
SPEAKER IMPEDANCE  
L
L
4
OHMS MIN./SPEAKER  
SPEAKERS  
R
R
REMOTE  
TUNER LINE/DVD  
OUT(REC) IN(PLAY)  
TAPE  
CONTROL  
R
OUT(REC) IN(PLAY)  
Sound processor  
OUTPUT  
L
AC OUTLET  
R
AC 230-240V  
50Hz  
SWITCHED  
100W MAX.  
OUT  
IN  
SUBWOOFER  
PRE OUT  
CDR/PC  
CD  
MD  
PROCESSOR  
IN  
OUT  
PROCESSOR  
SUBWOOFER  
PRE OUT  
: Signal flow  
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13  
Connecting to components other than the Separate Col-  
lection Series  
Connecting the  
cables  
If your other components are made by ONKYO and those components are equipped with  
connec-  
tors, you can control the  
-connected components with the supplied remote controller.  
Before connecting  
• The unit must be connected in the  
system hookups for  
control operations.  
• Each component has two connectors. There is no difference between these connectors.  
• The components may be connected in any order.  
• The hookups on the previous page are necessary independently of the  
system hookups.  
The illustration below is an example of a  
hookup.  
Connections  
Tuner  
Amplifier  
– this unit  
cable (supplied with every ONKYO  
MD recorder  
component that has  
connectors  
except for the amplifier and receiver)  
Stereo cassette  
tape deck  
CD player  
AC outlet connection  
You can connect the power cord from an-  
other audio device to the rear of the A-  
905TX.  
L
(
)
(
)
OUT REC IN PLAY  
CAUTION:  
SPEAKER IMPEDANCE  
L
L
4
OHMS MIN./SPEAKER  
SPEAKERS  
R
R
REMOTE  
TUNER LINE/DVD  
TAPE  
OUT REC IN PLAY  
CONTROL  
R
(
)
(
)
(
)
(
)
OUT REC IN PLAY  
L
AC OUTLET  
R
AC 230-240V  
50Hz  
Since the AC outlet on the unit is a  
SWITCHED type outlet, you can use the  
POWER switch to turn on/off the power  
to both the A-905TX and the connected  
audio device.  
SWITCHED  
100W MAX.  
OUT  
IN  
SUBWOOFER  
PRE OUT  
CDR/PC  
CD  
MD  
PROCESSOR  
230-240 V, 50 Hz models  
120 V, 60 Hz models  
The shape and capacity of the AC outlet  
may differ depending on the area of pur-  
chase. Make sure that the capacity of other  
components connected to this unit does not  
exceed the capacity that is printed on the  
Capacity is 100 watts.  
Capacity is 120 watts.  
14  
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rear panel.  
Connecting speaker systems  
Connecting left and right speakers  
Before connecting  
• The load impedance of each speaker must be at least 4 ohms.  
• Do not use unnecessarily long or extremely thin speaker cords. Otherwise, the DC resistance of the  
speaker cords may become too high, lowering the damping factor and causing the sound quality to  
deteriorate.  
• Do not connect the speaker cord to the L and R connectors at the same time and do not connect two  
or more speakers to the same speaker connectors.  
NO  
L
L
NO  
SPEAKERS  
SPEAKERS  
R
R
Preparing the speaker cords for connection  
Note  
2 Twist the stripped end  
NO  
1 Strip 15 mm from  
To prevent dam-  
age to circuits  
never short-circuit  
the positive (+)  
and negative (–)  
speaker wires.  
of the cord.  
the end of each  
cord.  
15mm  
Connecting the speaker cords to the speaker connectors  
L
SPEAKERS  
Left  
speaker  
Right  
speaker  
-
+
-
+
R
L
(
)
(
OUT REC IN PLAY  
)
CAUTION:  
SPEAKER IMPEDANCE  
OHMS MIN./SPEAKER  
L
L
4
SPEAKERS  
R
R
REMOTE  
TUNER LINE/DVD  
TAPE  
CONTROL  
R
(
)
(
)
(
)
OUT REC IN PLAY  
OUT REC IN PLAY  
( )  
L
AC OUTLET  
R
AC 230-240V  
50Hz  
SWITCHED  
100W MAX.  
OUT  
IN  
SUBWOOFER  
PRE OUT  
CDR/PC  
CD  
MD  
PROCESSOR  
This unit  
2 Insert the stripped end  
3 Turn the knob clock-  
1 Turn the knob counter-  
of the cord.  
wise to tighten.  
clockwise to loosen.  
15  
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Connecting speaker systems  
Connecting a subwoofer  
Before connecting  
• If your subwoofer isn’t equipped with an amplifier, connect a separate amplifier to the unit first, then  
connect the subwoofer to that amplifier.  
• The SUBWOOFER PRE OUT connector supplies the left and right mixed monaural signals to the  
subwoofer.  
Connections  
This unit  
L
(
)
(
OUT REC IN PLAY  
)
CAUTION:  
SPEAKER IMPEDANCE  
L
L
4
OHMS MIN./SPEAKER  
SPEAKERS  
R
R
REMOTE  
TUNER LINE/DVD  
TAPE  
CONTROL  
R
(
)
(
)
(
)
OUT REC IN PLAY  
OUT REC IN PLAY  
( )  
When connecting a subwoofer with a  
built-in amplifier  
L
AC OUTLET  
R
AC 230-240V  
50Hz  
SWITCHED  
100W MAX.  
OUT  
IN  
SUBWOOFER  
PRE OUT  
CDR/PC  
CD  
MD  
PROCESSOR  
Active  
Subwoofer  
Audio connection cable  
or  
IN  
OUT  
PROCESSOR  
SUBWOOFER  
PRE OUT  
When connecting a subwoofer with  
no built-in amplifier  
Audio connection cable  
Subwoofer  
Amplifier  
16  
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Preparations  
Preparing the remote controller  
Installing the remote controller  
batteries  
Using the remote controller  
Point the remote controller toward  
the remote control sensor.  
1
Remove the battery compartment  
cover by pressing and sliding it  
away from the remote controller  
unit.  
The STANDBY indicator lights up when the unit  
receives a signal from the remote controller.  
Remote control  
INTEGRA  
TED STEREO AMPLIFIER  
sensor  
VOLUME  
BY/ON  
CD  
MD  
WIDE RANGE AMP TECHNOLOGY  
INPUT  
TUNER  
T
APE  
SANDB
LINE/  
DVD  
CDR/PC  
BASS  
ONES  
TREBLE  
DIRECT  
BALANCE  
SOURCE DIRECT  
DIRECT  
-
+
-
+
TONE  
ACOUSTIC  
PRESENCE  
L
R
ON  
/
BOOST  
A-  
905TX  
30˚  
30˚  
2
Insert two AA (R6 or UM-3)-size  
batteries into the battery com-  
partment.  
Control range  
Carefully follow the polarity diagram (posi-  
tive + and negative - symbols) inside the  
battery compartment.  
Notes  
• Place the unit away from strong light such as  
direct sunlight or inverted fluorescent light which  
can prevent proper operation of the remote  
controller.  
• Using another remote controller of the same  
type in the same room or using the unit near  
equipment which uses infrared rays may cause  
operational interference.  
• Do not put any object such as a book on the  
remote controller. The buttons of the remote  
controller may be pressed by mistake and drain  
the batteries.  
• Make sure the audio rack doors do not have  
colored glass. Placing the unit behind such doors  
may prevent proper remote controller operation.  
• If there is any obstacle between the remote con-  
troller and the remote control sensor, the re-  
mote controller will not operate.  
3
Replace the compartment cover.  
Notes  
• Do not mix new batteries with old batteries or  
different kinds of batteries.  
To avoid corrosion, remove the batteries if the  
remote controller is not to be used for a long time.  
• Remove dead batteries immediately to avoid  
damage from corrosion. If the remote control-  
ler doesn’t operate smoothly, replace both the  
batteries at the same time.  
• The life of the batteries supplied is about six  
months but this will vary depending on usage.  
17  
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Operation  
Turning the unit on  
STANDBY/ ON  
CLOCK  
GRAPHIC EQ  
EFFECT MODE  
STANDBY/ON  
SLEEP  
FM  
INTEGRATED STEREO AMPLIFIER  
WIDE RANGE AMP TECHNOLOGY  
VOLUME  
TUNER INPUT  
PRESET  
STANDBY/  
ON  
AM  
INPUT  
Power/muting  
lamp  
TAPE  
PAUSE/STEP  
DVD  
CD  
MD  
TUNER  
TAPE  
STANDBY/ON  
STANDBY  
REPEAT SCROLL  
M
D
LINE/DVD CDR/PC  
DIRECT  
PLAY MODE CLEAR  
REC  
VOLUME  
SOURCE DIRECT  
DIRECT  
REPEAT RANDOM  
C
D
BASS  
TREBLE  
BALANCE  
ACOUSTIC  
PRESENCE  
POWER  
PHONES  
TONE  
MEMORY CLEAR  
REPEAT PLAY MODE  
DISC  
REC  
ON  
OFF  
OFF/1/2  
CDR  
+
+
L
R
A-905TX  
TONE  
CLEAR  
MUTING  
TIMER  
1
4
7
2
5
8
3
6
POWER switch  
UP/DOWN  
9
VOLUME  
ACOUSTIC  
STANDBY indicator  
Before turning the unit on  
STANDBY/ ON  
STANDBY/ON  
Turn VOLUME control to the leftmost position to  
avoid damaging the speakers.  
or  
STANDB
1
Connect the AC power cord (mains  
lead) to the wall outlet (the  
VOLUME  
mains).  
Power/muting  
lamp  
L
(
)
(
OUT REC IN PLAY  
)
CAUTION:  
SPEAKER IMPEDANCE  
L
L
4
OHMS MIN./SPEAKER  
SPEAKERS  
R
R
REMOTE  
TUNER LINE/DVD  
OUT(REC) IN(PLAY)  
TAPE  
CONTROL  
R
OUT(REC) IN(PLAY)  
L
AC OUTLET  
R
AC 230-240V  
50Hz  
SWITCHED  
100W MAX.  
OUT  
IN  
SUBWOOFER  
PRE OUT  
CDR/PC  
CD  
MD  
PROCESSOR  
To wall  
outlet  
Notes  
• The A-905TX is shipped with the main power  
(POWER) switch in the ON position. When  
AC power cord (mains lead)  
the power cord is plugged in for the first time,  
the A-905TX will automatically enter the standby  
state and the STANDBY indicator will light (same  
condition after step 2.)  
• If the AC power cord (mains lead) is connected  
to the AC outlet of another component, that  
components AC power cord (mains lead) must  
be connected to the wall outlet (the mains) to  
supply power to the unit. If the component has  
a power switch, it must be set to On.  
• Leave POWER switch on. If you set POWER  
switch to off:  
– the remote controller will not operate, and  
– the timer functions will not operate.  
• If you do not use the unit for a long time, set  
POWER to off by pressing POWER switch again.  
• The unit may cause a power surge on your home  
circuit when you turn it on. If this interferes with  
any other devices connected to the same cir-  
cuit, plug this unit into another outlet on a sepa-  
rate circuit.  
(illustration is 230-240 V models)  
2
3
Press the POWER switch to supply  
power to the unit.  
The STANDBY indicator lights.  
POWER  
ON  
Press STANDBY/ON button or  
POWER button on the remote con-  
troller to turn on the unit.  
The STANDBY indicator goes off, and the  
power/muting lamp above the VOLUME  
control lights.  
18  
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Choosing the required source  
STANDBY/ ON  
GRAPHIC EQ  
EFFECT MODE  
CLOCK  
SLEEP  
TUNER INPUT  
PRESET  
Input source indicators  
FM  
AM  
TAPE  
INPUT  
PAUSE/STEP  
DVD  
INTEGRATED STEREO AMPLIFIER  
VOLUME  
VOLUME  
INPUT  
WIDE RANGE AMP TECHNOLOGY  
INPUT  
REPEAT SCROLL  
M
C
D
D
PLAY MODE CLEAR  
REC  
REPEAT RANDOM  
CD  
MD  
TUNER  
TAPE  
STANDBY/ON  
STANDBY  
MEMORY CLEAR  
REPEAT PLAY MODE  
LINE/DVD CDR/PC  
DISC  
REC  
CDR  
DIRECT  
TONE  
CLEAR  
SOURCE DIRECT  
DIRECT  
BASS  
TREBLE  
BALANCE  
ACOUSTIC  
PRESENCE  
POWER  
PHONES  
TONE  
MUTING  
TIMER  
1
4
2
5
8
3
6
9
ON  
OFF  
OFF/1/2  
+
+
L
R
A-905TX  
UP/DOWN  
ENTER  
7
VOLUME  
ACOUSTIC  
PRESENCE  
VOLUME  
/
--/---  
10  
/0  
1
Turn INPUT selector clockwise or  
counterclockwise until the input  
indicator of the source you wish  
to listen to lights.  
2
3
Start playing the source you se-  
lected in step 1.  
Set the volume to appropriate  
level using the VOLUME control or  
VOLUME (up)/ (down) buttons  
on the remote controller.  
Or press INPUT button on the re-  
mote controller.  
INPUT  
INPUT  
Turn VOLUME control clockwise to increase  
the volume or counterclockwise to decrease  
the volume.  
or  
VOLUME  
VOLUM
The indicators light in the following order:  
or  
CD  
MD  
TUNER  
CDR/PC  
LINE/DVD  
TAPE  
When you press the INPUT button on the  
remote controller repeatedly, the indicators  
light up in clockwise order.  
e.g. The CD player is selected.  
CD  
MD  
TUNER  
TAPE  
LINE/DVD CDR/PC  
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Adjusting the sound  
STANDBY/ ON  
CLOCK  
GRAPHIC EQ  
EFFECT MODE  
SLEEP  
FM  
TUNER INPUT  
PRESET  
INTEGRATED STEREO AMPLIFIER  
AM  
WIDE RANGE AMP TECHNOLOGY  
VOLUME  
TAPE  
INPUT  
PAUSE/STEP  
DVD  
CD  
MD  
TUNER  
TAPE  
REPEAT SCROLL  
M
D
STANDBY/ON  
STANDBY  
PLAY MODE CLEAR  
REC  
LINE/DVD CDR/PC  
DIRECT  
REPEAT RANDOM  
C
D
ACOUSTIC  
PRESENCE  
Indicator  
SOURCE DIRECT  
DIRECT  
MEMORY CLEAR  
REPEAT PLAY MODE  
BASS  
TREBLE  
BALANCE  
ACOUSTIC  
PRESENCE  
DISC  
REC  
POWER  
PHONES  
TONE  
CDR  
ON  
OFF  
TONE  
CLEAR  
OFF/1/2  
+
+
L
R
A-905TX  
MUTING  
TIMER  
1
4
2
5
8
3
6
9
UP/DOWN  
ENTER  
7
VOLUME  
BASS  
TREBLE  
ACOUSTIC  
PRESENCE  
BALANCE  
--/---  
10  
/
0
ACOUSTIC  
PRESENCE  
REMOTE CONTROLLER RC-456S  
ACOUSTIC PRESENCE  
1
2
Adjust left and right speaker bal-  
ance.  
Acoustic Presence adds realness to music through  
the use of exclusive Onkyo circuitry. Presence set-  
tings 1 and 2 are ideally suited for use with com-  
pact speakers.  
Turn BALANCE control to “L” to  
lower the volume level of the  
right speaker, or “R” to lower the  
volume level of the left speaker.  
BALANCE  
Press ACOUSTIC PRESENCE on the unit  
or remote controller.  
L
R
The indicator  
ACOUSTIC  
PRESENCE  
ACOUSTIC  
PRESENCE  
or  
Adjust the tone.  
The tone can be adjusted from –10  
to +10.  
OFF/1/2  
Turn BASS control to “+” to rein-  
force the level of the low frequen-  
cies, or “–” to attenuate it.  
Each press changes the mode as follows:  
There is no low frequency control at the cen-  
ter position.  
Acoustic Presence is off and  
the indicator is off.  
OFF  
1
Adjust high frequencies.  
Turn TREBLE control to “+” to re-  
inforce the level of the high fre-  
quencies, or “–” to attenuate it.  
The indicator lights up orange  
and the low end and bass  
range will be enhanced.  
There is no high frequency control at the  
center position.  
BASS  
TREBLE  
2
The indicator lights up green  
and the bass range will be  
further enhanced.  
+
+
Tip  
• Refer to the specifications on page 24 for more  
information on the boost amount.  
• The effect might not be obvious if the sources  
bass range or low end is weak.  
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Source Direct function/Muting/Listening  
with the headphones  
STANDBY/ ON  
CLOCK  
GRAPHIC EQ  
EFFECT MODE  
SLEEP  
TUNER INPUT  
PRESET  
FM  
AM  
INTEGRATED STEREO AMPLIFIER  
WIDE RANGE AMP TECHNOLOGY  
INPUT  
VOLUME  
TAPE  
Power/muting  
lamp  
PAUSE/STEP  
DVD  
CD  
MD  
TUNER  
TAPE  
REPEAT SCROLL  
M
C
D
D
STANDBY/ON  
STANDBY  
PLAY MODE CLEAR  
REC  
LINE/DVD CDR/PC  
REPEAT RANDOM  
DIRECT  
VOLUME  
SOURCE DIRECT  
DIRECT  
MEMORY CLEAR  
REPEAT PLAY MODE  
BASS  
TREBLE  
BALANCE  
ACOUSTIC  
PRESENCE  
DISC  
REC  
POWER  
PHONES  
TONE  
CDR  
TONE  
CLEAR  
ON  
OFF  
OFF/1/2  
+
L
R
+
A-905TX  
MUTING  
TIMER  
1
4
2
5
8
3
6
9
MUTING  
UP/DOWN  
ENTER  
7
VOLUME  
ACOUSTIC  
PRESENCE  
PHONES  
SOURCE DIRECT  
--/---  
10  
/0  
Muting the sound  
SOURCE DIRECT selector  
By bypassing the audio circuits of certain controls,  
the Source Direct function allows you to enjoy a  
sound closer to the original.  
Press MUTING button on the remote  
controller to mute the sound.  
The power/muting lamp above the VOLUME con-  
trol flashes.  
DIRECT: A signal selected via the Input Selector  
will bypass the BASS and TREBLE con-  
trols.  
To restore the sound, press MUTING button again.  
VOLUME  
MUTING  
TONE: You can adjust the tonal quality of the  
signal selected by the Input Selector us-  
ing the BASS and TREBLE controls.  
Tip  
DIRECT  
During muting:  
SOURCE DIRECT indicator  
• if you press VOLUME or button on the re-  
mote controller, the sound will be restored, and  
• if you turn off the unit, and turn it on again, the  
sound will be restored.  
SOURCE DIRECT  
(This indicator lights up  
when the knob is set to  
“DIRECT.”)  
DIRECT  
TONE  
Listening with the headphones  
Note  
Connect the stereo headphones mini  
plug to the PHONES jack.  
If you set the SOURCE DIRECT knob to “DIRECT”,  
you cannot use the tone control function. How-  
ever, Acoustic Presence mode is enabled. (You can  
turn it off if you want.)  
The speakers will reproduce no sound while the  
headphones are connected.  
INTEGRATED STEREO  
CD  
STANDBY/ON  
STANDBY  
BASS  
POWER  
PHONES  
ON  
OFF  
+
Tip  
You can adjust the sound through the headphones  
as well as through the speakers. See “Adjusting  
the sound” on the previous page for operations.  
21  
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Recording  
STANDBY/ ON  
CLOCK  
GRAPHIC EQ  
EFFECT MODE  
SLEEP  
FM  
Input source indicators  
PRESET  
TUNER INPUT  
AM  
INPUT  
TAPE  
PAUSE/STEP  
DVD  
INTEGRATED STEREO AMPLIFIER  
VOLUME  
WIDE RANGE AMP TECHNOLOGY  
INPUT  
REPEAT SCROLL  
M
D
PLAY MODE CLEAR  
REC  
REPEAT RANDOM  
C
D
CD  
MD  
TUNER  
TAPE  
STANDBY/ON  
STANDBY  
MEMORY CLEAR  
REPEAT PLAY MODE  
LINE/DVD CDR/PC  
INPUT  
DISC  
REC  
CDR  
DIRECT  
TONE  
CLEAR  
SOURCE DIRECT  
DIRECT  
BASS  
TREBLE  
BALANCE  
ACOUSTIC  
PRESENCE  
POWER  
PHONES  
TONE  
MUTING  
TIMER  
1
4
2
5
8
3
6
9
ON  
OFF  
OFF/1/2  
L
R
+
+
UP/DOWN  
ENTER  
A-905TX  
7
VOLUME  
ACOUSTIC  
PRESENCE  
--/---  
10  
/0  
Before recording  
Refer to the instruction manuals of the related  
components for detailed recording operations.  
2
3
Prepare the playing source.  
e.g. Insert the CD you want to record from  
into the CD player.  
1
Turn INPUT selector clockwise or  
counterclockwise until the input  
indicator of the source you wish  
to record from lights.  
ONKYO  
CD PLAYER  
CD PLAYER  
Or press INPUT button on the re-  
mote controller.  
INPUT  
Prepare the recording component.  
INPUT  
e.g. 1 Insert an MD into the MD recorder.  
or  
The indicators light in the following order:  
CD  
MD  
TUNER  
e.g. 2 Insert a cassette into the stereo cas-  
sette tape deck.  
CDR/PC  
LINE/DVD  
TAPE  
When you press the INPUT button on the  
remote controller repeatedly, the indicators  
light up in clockwise order.  
e.g. The CD player is selected.  
e.g. 3 Insert a blank CD into the CD re-  
corder.  
CD  
MD  
TUNER  
TAPE  
LINE/DVD CDR/PC  
4
Start recording with the compo-  
nent prepared in step 3, then start  
playing the source prepared in  
step 2.  
22  
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Other Information  
Troubleshooting  
If you have any problems with the unit, please check the troubleshooting table below first. For any  
problems not covered in the table, please consult your nearest ONKYO authorized service center.  
Cause  
Remedy  
Symptom  
The AC power cord is not fully in- Insert the AC power cord (mains lead)  
The unit doesn’t turn on.  
serted into the wall outlet.  
plug into the wall outlet (the mains)  
securely.  
Sound is reproduced from  
neither left or right speaker.  
• Check the speaker connections (see  
page 15).  
• The wire of the speaker cord is  
touching the other jacks, connec-  
tors, or metal parts.  
• Adjust the volume level (see page  
19).  
• The volume level is turned down  
to the minimum.  
• Press MUTING button on the re-  
mote controller to restore the sound  
(see page 21).  
• Turn down the volume level first,  
then disconnect the headphones.  
Then, readjust the volume level.  
• Connect the jumper plugs to PRO-  
CESSOR connectors.  
• The sound is muted with the mut-  
ing function.  
• The headphones are connected to  
the PHONES jack.  
• Jumper plugs are not connected to  
the PROCESSOR connectors.  
• Check the speaker connections (see  
page 15).  
• The speaker cord is not connected  
properly or firmly, or is discon-  
nected.  
Sound is reproduced from  
only one speaker.  
• Adjust the sound balance (see page  
20).  
• Connect the jumper plug to PRO-  
CESSOR connectors.  
• The sound is unbalanced between  
the left and right speakers.  
• Jumper plug is not connected to  
the PROCESSOR connectors.  
• Adjust the volume to the proper  
level when you set the timer (see  
page 19).  
• The volume level is turned down  
to the minimum.  
No sound is reproduced  
when the (wake-up) timer  
operates.  
• Replace the batteries with new ones  
(see page 17).  
• Operate the remote controller  
within the control range (see page  
17).  
• The batteries in the remote control-  
ler are dead.  
• The remote controller is out of the  
control range.  
The remote control doesn’t  
operate.  
• Try to operate the remote control-  
ler from a different angle, or remove  
the obstruction.  
• There is some obstruction between  
the remote controller and the unit.  
Excessive electrical interference may temporarily render this system's sensitive microcomputer inoper-  
able. If this happens, unplug the system for at least five seconds.  
23  
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Specifications  
Power output  
Power supply  
AC 120 V, 60 Hz  
AC 230-240 V, 50 Hz  
22 watts per channel, min RMS,  
at 4 ohms, both channels driven  
1 kHz, with no more than 0.5% THD  
15 watts per channel, min RMS,  
at 8 ohms, both channels driven  
1 kHz, with no more than 0.2% THD  
2 × 20 watts at 4 ohms,1 kHz (DIN)  
2 × 14 watts at 8 ohms,1 kHz (DIN)  
2 × 32 watts at 4 ohms,1 kHz (EIAJ)  
Power consumption  
(AC 120 V, 60 Hz)  
: 63 W  
(AC 230-240 V, 50 Hz) : 58 W  
Dimensions (W × H × D)  
205 × 91 × 302 mm  
8-1/16" × 3-9/16" × 11-7/8"  
Total harmonic distortion  
Weight  
0.2% at rated power  
3.4 kg, 7.5 lbs  
IM distortion  
Specifications and external appearance are subject to  
change without notice as a result of product improve-  
ment.  
0.2% at rated power  
Damping factor  
30 at 8 ohms  
Frequency and response  
15 to 30,000 Hz 1 dB  
Input sensitivity/impedance  
TUNER/LINE/DVD/CD: 200 mV/50 kohms  
TAPE PLAY: 200 mV/50 kohms  
MD PLAY: 200 mV/50 kohms  
CDR/PC PLAY: 200 mV/2.2 kohms  
Output sensitivity/impedance  
TAPE REC: 200 mV/2.2 kohms  
MD REC: 200 mV/2.2 kohms  
CDR/PC REC: 200 mV/2.2 kohms  
Bass control  
8 dB at 50 Hz  
Treble control  
8 dB at 10,000 Hz  
Acoustic Presence  
1: +3 dB at 20.5 Hz, +3 dB at 82 Hz  
2: +3 dB at 20.5 Hz, +6 dB at 82 Hz  
Signal to noise ratio (IHF-A)  
LINE/DVD  
Muting  
–50 dB  
/CD/MD/CDR/PC: 100 dB  
24  
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Index to parts and controls  
For operational instructions, refer to the page indicated in square parentheses.  
Front panel  
STANDBY indicator [18]  
STANDBY/ON button [18]  
Remote control sensor [17]  
Input source indicators [19, 22]  
Power/muting lamp [18, 21]  
INPUT selector [19, 22]  
INTEGRATED STEREO AMPLIFIER  
WIDE RANGE AMP TECHNOLOGY  
INPUT  
VOLUME  
CD  
MD  
TUNER  
TAPE  
STANDBY/ON  
STANDBY  
LINE/DVD CDR/PC  
DIRECT  
SOURCE DIRECT  
DIRECT  
BASS  
TREBLE  
BALANCE  
ACOUSTIC  
PRESENCE  
PHONES  
POWER  
TONE  
ON  
OFF  
OFF/1/2  
+
+
L
R
A-905TX  
SOURCE DIRECT  
indicator [21]  
SOURCE DIRECT selector [21]  
VOLUME control [19]  
BALANCE control [20]  
TREBLE control [20]  
BASS control [20]  
PHONES jack [21]  
POWER ON/OFF switch [18]  
ACOUSTIC PRESENCE  
button/indicator [20]  
25  
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Index to parts and controls  
Remote controller  
You can control the other  
-connected components with the supplied remote controller.  
• The remote controller buttons operate in the same way as the buttons on each component with the  
same indication.  
• For actual operations, please refer to the Instruction Manual for each component.  
STANDBY/ ON  
CLOCK  
GRAPHIC EQ  
EFFECT MODE  
SLEEP  
FM  
STANDBY/ON button  
[18]  
Toggles between STANDBY  
TUNER INPUT  
PRESET  
AM  
INPUT button [19, 22]  
Enables you to select a listen-  
ing source.  
TAPE  
and ON.  
PAUSE/STEP  
DVD  
M D  
REPEAT SCROLL  
PLAY MODE CLEAR  
REC  
REPEAT RANDOM  
C D  
CDR  
MEMORY CLEAR  
REPEAT PLAY MODE  
DISC  
REC  
TONE  
CLEAR  
MUTING button [21]  
Mutes the sound temporarily.  
Disabled with this unit.  
MUTING  
TIMER  
1
4
2
5
8
3
6
9
UP/DOWN  
ENTER  
7
VOLUME  
VOLUME  
/
buttons [19]  
ACOUSTIC  
PRESENCE  
Enables you to increase or  
decrease the volume level.  
--/---  
10  
/0  
-
REMOTE CONTROLLER RC 456S  
ACOUSTIC PRESENCE but-  
ton [20]  
Switches acoustic presence  
off and types.  
26  
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Remote controller  
• Use the following buttons to control components that are connected to the  
- system.  
• Buttons marked with an asterisk (*) cannot be used when the unit is combined with the Separate  
Collection Series.  
Tuner control*  
CLOCK : Clock call button  
SLEEP : Sleep timer button  
Graphic equalizer control*  
EFFECT: Effect select button  
MODE: Mode select button  
PRESET  
/
: Tuner preset se-  
lect buttons  
FM: FM band select button  
AM: AM band select button  
MD recorder control  
REPEAT: Repeat mode button  
SCROLL: Scroll button  
: Stop button  
: Pause button  
: Play button  
PLAY MODE: Play mode selection  
button  
CLEAR: Clear button  
REC: Recording button  
: Track down button  
: Track up button  
Stereo cassette tape deck  
control  
: Fast-forward button  
: Rewind button  
: Reverse play button  
: Stop button  
STANDBY/ ON  
CLOCK  
GRAPHIC EQ  
EFFECT MODE  
SLEEP  
FM  
TUNER INPUT  
PRESET  
AM  
: Play button  
TAPE  
PAUSE/STEP  
DVD  
M D  
DVD player control  
: Chapter/track down button  
: Chapter/track up button  
: Stop button  
REPEAT SCROLL  
PLAY MODE CLEAR  
REC  
PAUSE/STEP : Pause/Step forward  
button  
: Play button  
REPEAT RANDOM  
C D  
CDR  
CD player (or changer) con-  
trol  
REPEAT: Repeat mode button  
RANDOM: Random play button  
: Stop button  
MEMORY CLEAR  
REPEAT PLAY MODE  
DISC  
REC  
CD recorder control  
REPEAT: Repeat mode button  
PLAY MODE: Play mode selection  
button  
: Stop button  
: Pause button  
: Pause button  
: Play button  
TONE  
CLEAR  
MEMORY: Memory button  
CLEAR: Clear button  
DISC: Disc button for CD changer  
: Track down button  
: Track up button  
MUTING  
TIMER  
1
4
2
5
8
3
6
9
: Play button  
UP/DOWN  
ENTER  
CLEAR: Clear button  
REC: Recording button  
: Track down button  
: Track up button  
7
VOLUME  
ACOUSTIC  
PRESENCE  
--/---  
10  
/0  
Tuner/CD player (or  
changer) /MD recorder con-  
trol  
1~9, 10/0: Number buttons  
—/—: Tens hold button  
-
REMOTE CONTROLLER RC 456S  
Timer setting control  
(Tuner)  
*
TIMER: Timer select button  
UP / DOWN : Setting select  
buttons  
ENTER: Enter button  
27  
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Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN  
Tel: 072-831-8111 Fax: 072-833-5222 http://www.onkyo-intl.com  
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.onkyousa.com  
ONKYO EUROPE ELECTRONICS GmbH  
Liegnitzerstrasse 6, 82194 Groebenzell, GERMANY  
Tel: +49-8142-4401-0 Fax: +49-8142-4401-555 http://www.onkyo.net  
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  
HOMEPAGE  
Printed in Japan  
E
SN 29343066  
I0103-1  
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