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English
Instruction Manual
Integrated Stereo Amplifier
A-905TX
Operation
Other
Information
Befor
e
using
Connections
Pr
eparations
STANDBY/ON
PHONES
STANDBY
A-905TX
INTEGRATED STEREO AMPLIFIER
TREBLE
BASS
BALANCE
POWER
OFF/1/2
--+
--+
L
R
PRESENCE
ACOUSTIC
CD
MD
TUNER
LINE/ DVD
TAPE
CDR/PC
SOURCE DIRECT
DIRECT
DIRECT
TONE
INPUT
ON
OFF
VOLUME
WIDE RANGE AMP TECHNOLOGY


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2
Thank you for purchasing ...
Before using
Main Features
· High-Quality Separate Component
· WRAT (Wide Range Amp Technology) Circuit
· Processor In/Out, Subwoofer Pre Out
· Six-audio Source Inputs
Thank you for purchasing the ONKYO A-905TX Integrated Stereo Amplifier.
Please read this manual thoroughly before making any connection or turning on the power. Follow
these instructions to obtain optimum performance and maximum listening enjoyment from your new
A-905TX. Please retain this manual for future reference.
· Acoustic Presence Circuit Naturally En-
hances the Extreme Low Range
· Source Direct Function
· System Control Remote Controller
WARNING:
TO REDUCE THE RISK OF FIRE OR
ELECTRIC
SHOCK,
DO
NOT
EXPOSE THIS APPLIANCE TO RAIN
OR MOISTURE.
CAUTION:
TO
REDUCE
THE
RISK
OF
ELECTRIC
SHOCK,
DO
NOT
REMOVE COVER (OR BACK). NO
USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
The lightning flash with arrowhead symbol, within
an equilateral triangle, is intended to alert the user
to the presence of uninsulated "dangerous
voltage" within the product's enclosure that may
be of sufficient magnitude to constitute a risk of
electric shock to persons.
The exclamation point within an equilateral
triangle is intended to alert the user to the
presence of important operating and maintenance
(servicing)
instructions
in
the
literature
accompanying the appliance.
WARNING
RISK OF ELECTRIC SHOCK
DO NOT OPEN
RISQUE DE CHOC ELECTRIQUE
NE PAS
OUVRIR
AVIS
Memory Preservation
This unit does not require memory preservation
batteries. A built-in memory power back-up sys-
tem preserves the contents of the memory dur-
ing power failures and even when the unit is un-
plugged. The unit must be plugged in order to
charge the back-up system.
The memory preservation period after the unit
has been unplugged varies depending on climate
and placement of the unit. On the average,
memory contents are protected over a period of
a few weeks after the last time the unit has been
unplugged. This period is shorter when the unit
is exposed to a highly humid climate.


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3
Befor
e
using
Important Safeguards
10. Power Sources ­ The appliance should be
connected to a power supply only of the type
described in the operating instructions or as
marked on the appliance.
11. Polarization ­ If the appliance is provided with
a polarized plug having one blade wider than
the other, please read the following information:
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.
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.
13. Cleaning ­ The appliance should be cleaned
only as recommended by the manufacturer.
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.
15. Object and Liquid Entry ­ Care should be taken
so that objects do not fall and liquids are not spilled
into the enclosure through openings.
16. Damage Requiring Service ­ The appliance
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.
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.
1.
Read Instructions ­ All the safety and
operating instructions should be read before
the appliance is operated.
2.
Retain Instructions ­ The safety and
operating instructions should be retained for
future reference.
3.
Heed Warnings ­ All warnings on the
appliance and in the operating instructions
should be adhered to.
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.
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
combination should
be moved with care.
Quick stops, excessive
force, and uneven sur-
faces may cause the
appliance and cart
combination to over-
turn.
7.
Wall or Ceiling Mounting ­ The appliance
should be mounted to a wall or ceiling only
as recommended by the manufacturer.
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.
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.
PORTABLE CART WARNING
S3125A


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4
Precautions
Declaration of Conformity
We, ONKYO EUROPE
ELECTRONICS GmbH
INDUSTRIESTRASSE 20
82110 GERMERING,
GERMANY
GERMERING, GERMANY
ONKYO EUROPE ELECTRONICS GmbH
A.HORIUCHI
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.
1. Warranty Claim
You can find the serial number on the rear panel
of this unit. In case of warranty claim, please re-
port this number.
2. Recording Copyright
Recording of copyrighted material for other than
personal use is illegal without permission of the
copyright holder.
3. AC Fuse
The fuse is located inside the chassis and is not
user-serviceable. If power does not come on, con-
tact your Onkyo authorized service station.
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
or cloths since these could damage the finish or
remove the panel lettering.
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 British model
Replacement and mounting of an AC plug on the
power supply cord of this unit should be performed
only by qualified service personnel.
IMPORTANT
The wires in the mains lead are coloured in accor-
dance with the following code:
Blue
: Neutral
Brown : Live
As the colours of the wires in the mains lead of
this apparatus may not correspond with the
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.
IMPORTANT
A 5 ampere fuse is fitted in this plug. Should the fuse
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.
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.
Modele pour les Canadien
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.


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5
Befor
e
using
Table of contents
Befor
e
using
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
Remote controller x 1
(RC-456S)
Batteries x 2
(Size AA, R6, or UM-3)
Supplied accessories
Check that the following accessories are supplied with this unit.