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TX-SR603X/603E/8360
SERVICE MANUAL
SERVICE MANUAL
Ref. No. 3864
042005
AV RECEIVER
MODEL
TX-SR603X
MODEL
TX-SR603E
MODEL
TX-SR8360
TX-SR603X Black, Golden and Silver models
120V AC, 60Hz
230-240V AC, 50Hz
120V/220-230V AC, 50/60Hz
220-230V AC, 50/60Hz
B MDD, B MDC, S MDC
B MPA, S MPA
B MWT, G MWT
G MGR, G MGQ, G MGK
TX-SR603E Black and Silver models
230-240V AC, 50Hz
B MPP, S MPP
TX-SR8360 Golden model
220-230V AC, 50/60Hz
G MGR
RC-623M
STANDBY/ON
ZONE2
ZONE 2 LEVEL
PHONES
PURE AUDIO
MULTl CH
TONE
+
STEREO
LISTENING MODE
DISPLAY DIGITAL INPUT
RT/PTY/TP MEMORY TUNING MODE
RETURN
TUNING / PRESET
ENTER
SETUP
DVD
VIDEO 1
VIDEO 2
VCR 1
VCR 2
VIDEO 3
VIDEO 4
TAPE
TUNER
CD
SETUP MIC
S VIDEO
VIDEO
MASTER VOLUME
VIDEO 4 INPUT
LR
AUDIO
DIGITAL
OFF
STANDBY
CLEAR
SAFETY-RELATED COMPONENT
WARNING!!
COMPONENTS IDENTIFIED BY MARK
ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.


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TX-SR603X/603E/8360
SPECIFICATIONS
Audio Outputs
Digital Outputs
1(Optical ) 0(Coaxial )
Analog Outputs
TAPE, VIDEO1, VIDEO2
Subwoofer Pre Outputs
1
Speaker Outputs
9
Phones
1
Other Jacks
IR Input
1
12V Trigger Out
1
Specifications and features are subject to change without notice.
Power Supply
North American: AC 120 V, 60 Hz
Australian and European:
AC 230-240 V, 50 Hz
Others: AC 120/220-230 V, 50/60 Hz
AC 230-240 V, 50Hz
AC 220-230 V, 50/60 Hz
Power Consumption
North American: 6.7A
Others: 650 W
Stand-by Power Consumption
1.0 W
Dimensions
(W x H x D)
435 W x 175 H x 430 D mm
17-1/8" W x 6-7/8" H x 16-15/16" D inches
Weight
North American, Australian,
European, Singapore
and East southern asian: 13.6 kg
30.0 lbs
Others: 14.8 kg
32.6 lbs
Video Outputs
Component Video Output
OUT
S-Video Compatible Jack Output
MONITOR OUT, VIDEO1, VIDEO2
A/V Output
MONITOR OUT, VIDEO1, VIDEO2
Audio Inputs
Digital Inputs
Optical: 4(North American)/ 3(other)
Coaxial: 2
Analog Inputs
DVD(MULTICHANNEL), VIDEO1,
VIDEO2, VIDEO3, VIDEO4, TAPE, CD
Multichannel Inputs
6
General
Power Output
2 channel driven:
North American: 85 W + 85 W
(8 , 20Hz-20kHz, FTC)
European: 120 W + 120 W
(6 , 1kHz, DIN)
Asian, Australian: 150 W + 150 W
(6 , 1kHz, JEITA)
Dynamic Power
220 W + 220 W (3 , Front)
165 W + 165 W (4 , Front)
100 W + 100 W (8 , Front)
THD
(Total Harmonic Distortion)
0.08 % (Power Rated)
Damping Factor
60 (Front, 1kHz, 8 )
Input Sensitivity and Impedance
200 mV/ 47 k
(LINE)
Output Level and Impedance
200 mV/ 470
(REC OUT)
Frequency Response
10 Hz-100 kHz/ +1 dB-3 dB (Direct
mode)
Tone Control
10 dB, 50 Hz (BASS)
10 dB, 10 kHz (TREBLE)
SN Ratio
106 dB (LINE IHF-A)
Speaker Impedance
North American: 6 -
Others: 4 -
Amplifier Section
Input Sensitivity/Output Level
and Impedance
1 Vp-p /75
(Component and S-Video Y)
0.7 Vp-p /75
(Component Pb/Cb,Pr/Cr)
0.28 Vp-p /75
(S-Video C)
1 Vp-p /75
(Composite)
Component Video
Frequency Response
5 Hz-50 MHz
Video Section
FM
Tuning Frequency Range
North American: 87.5 MHz-107.9 MHz
Others: 87.5 MHz- 108.0 MHz
Usable Sensitivity
Stereo: 17.2 dBf 2
V(75
IHF)
Mono: 11.2 dBf 1
V(75
IHF)
S/N Ratio
Stereo: 70 dB (IHF-A)
Mono: 76 dB (IHF-A)
THD
Stereo: 0.3 % (1kHz)
Mono: 0.2 % (1kHz)
Frequency Response
30 Hz-15 kHz /
1 dB
Stereo Separation
45 dB (1kHz)
AM
Tuning Frequency Range
North American: 530 kHz-1700 kHz
Others: 522 kHz-1611 kHz
Usable Sensitivity
30
V
S/N Ratio
40 dB
THD
0.70%
Tuner Section
Video Inputs
Component Video Input
1, 2, 3
S-Video Compatible Jack Input
DVD, VIDEO1, VIDEO2, VIDEO3, VIDEO4
A/V Input
DVD, VIDEO1, VIDEO2, VIDEO3, VIDEO4


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TX-SR603X/603E/8360
SERVICE PROCEDURE
1. Replacing the fuses
This symbol located near the fuse indicates that the
fuse used is show operating type, For continued protection against
fire hazard, replace with same type fuse, For fuse rating, refer to
the marking adjacent to the symbol.
Ce symbole indique que le fusible utilise est e lent.
Pour une protection permanente, n'utiliser que des fusibles de meme
type. Ce demier est indique la qu le present symbol est apposre.
2. To initialize the unit
The AV receiver uses a battery-less memory backup system in order to retain radio presets and other settings
when it's unplugged or in the case of a power failure.
Although no batteries are required, the AV receiver must be plugged into an AC outlet in order to charge the
backup system. Once it has been charged, the AV receiver will retain the settings for several weeks,
although this depends on the environment and will be shorter in humid climates.
1. Press and the hold down the
VIDEO 1/VCR button, then press the STANDBY/ON button when the unit is Power on.
2. After " Clear " is displayed, the preset memory and each mode stored in the memory, are initialized and will return to
the factory settings.
4. Memory Backup
Main microprocessor Q701 only.
1. Press and the hold down the
DISPLAY button , then press the STANDBY/ON button when the unit is Power on.
Version is displayed on FL display only for
3 seconds.
2. Press the
STANDBY/ON button to Power off.
3. To check version of microprocessor
Ver.1.01/05305a
Ex.
REF NO.
F901
F901
F901 or
F901 or
F902
F902 or
F902 or
F903
F903 or
F903
F903 or
F903 or
F6901
F6901 or
F6902
F6902 or
F9501
F9501 or
F9501 or
PART NAME
FUSE
FUSE
FUSE
FUSE
FUSE
FUSE
FUSE
FUSE
FUSE
FUSE
FUSE
FUSE
FUSE
FUSE
FUSE
FUSE
FUSE
FUSE
FUSE
DESCRIPTION
10A-UL
5A-SE-EAK
5A-SE-TL250V
5A-SE-TL250V
5A-SE-EAK
5A-SE-TL250V
5A-SE-TL250V
5A-UL/T-237
5A-T/UL-ST2
2.5A-SE-EAK
2.5A-SE-TL250V
2.5A-SE-TL250V
12A-UL/T-314
12A-TUL-250V
12A-UL/T-314
12A-TUL-250V
2.5A-SE-EAK
2.5A-SE-TL250V
2.5A-T/UL-ST2
PART NO.
252199
252078
252244
252278
252078
252244
252278
252164
252258
252075
252241
252275
252196
252301
252196
252301
252075
252241
252254
REMARKS
!, <DD, DC>
!, <WT>
!, <WT>
!, <WT>
!, <PP, PA, WT, GK, GR, GQ>, <8360>
!, <PP, PA, WT, GK, GR, GQ>, <8360>
!, <PP, PA, WT, GK, GR, GQ>
!, <DD, DC>
!, <DD, DC>
!, <PP, PA, WT, GK, GR, GQ>, <8360>
!, <PP, PA, WT, GK, GR, GQ>, <8360>
!, <PP, PA, WT, GK, GR, GQ>, <8360>
!
!
!
!
!
!
!
<Notes>
<DC> : TX-SR603X Canadian model
<DD> : TX-SR603X American model
<GK> : TX-SR603 Korean model
<GQ> : TX-SR603 Hong kong model
<GR> : TX-SR603 Chinese model
<PA> : TX-SR603 Australian model
<WT> : TX-SR603 World wide model
<PP> : TX-SR603E European model
<8360> : TX-SR8360 Chinese model


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OPERATION CHECK-1
SPEAKER PROTECT-1 (DC VOLTAGE DETECTION)
TX-SR603X/603E/8360
1. Press and the hold down the
CD button , then press the STANDBY/ON button when the unit is Power ON.
" Test - _ " is displays it only for
5 seconds.
2. Press the
VIDEO 3 button, while the character of " Test - _ " is displayed.
Unit will be in the state of " Test-4-00 ".
3. Repeatedly press
TONE
+ button until the character of " Test-4-21 " is displayed.
[Procedure]
<Note>
No load. No input.
Test - _
Test - 4-00
[When]
1. Exchange power transistors (Q6050 - Q6066).
2. Exchange amplifier PC board ass'y (NAAF-8523).
Test - 4-21
Checking the operation starts automatically as follows.
Test - 4-21
Test - 4-22
Test - 4-25
Test - 4-23
Test - 4-24
Protect OK
Protect OK
Protect
Protect OK
Protect OK
Protect OK
Test - 4-35
Clear
Turn off
Front L ch
Check
If all channel are OK, the character of " Test - 4 - 35 " is displayed.
4. Press the
STANDBY/ON button.
Front R ch
Check
Center ch
Check
Surround L ch
Check
Surround R ch
Check
Blinks
Test - 4-26
Protect OK
Surround Back L ch
Check
Test - 4-27
Protect OK
Surround Back R ch
Check


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TX-SR603X/603E/8360
OPERATION CHECK-2
SPEAKER PROTECT-2 (CURRENT DETECTION)
1. Press and the hold down the
CD button , then press the STANDBY/ON button when the unit is Power ON.
" Test - _ " is displays it only for
5 seconds.
2. Press the
VIDEO 3 button, while the character of " Test - _ " is displayed.
Unit will be in the state of " Test-4-00 ".
3. Repeatedly press
TONE
+ button until the character of " Test-4-35 " is displayed.
4. Connect the Dummy load of
3 ohms to the Front Lch speakers terminal.
At this time, check the speaker relay is
not turned off.
5. Connect the dummy load of
1 ohm to the Front Lch speakers terminal.
At that time, you check the speaker relay is
turned off and " Protect " is displayed.
Disconnect the dummy load at once when check the display of " Protect ".
6. Check other channels according to the same procedure.
[Procedure]
<Note>
No input.
Do not check two or more channels at the same time.
Do not connect dummy load to speaker terminals fro seconds 2 or more.
Test - _
Test - 4-00
[When]
1. Exchange power transistors (Q6050 - Q6066).
2. Exchange amplifier PC board ass'y (NAAF-8523).
Test - 4-35
Clear
Turn off
7. Press the
STANDBY/ON button.
Test - 4-35
Protect
Test - 4-35
Blinks