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Onkyo TX-SR603 User Manual

Onkyo TX-SR603
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TX-SR603/603E/8360
SERVICE MANUAL
SERVICE MANUAL
Ref. No. 3864
042005
AV RECEIVER
MODEL
TX-SR603
MODEL TX-SR603E
MODEL TX-SR8360
TX-SR603 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, 50HzB MPP, S MPP
TX-SR8360
Golden model
220-230V AC, 50/60HzG MGR
RC-591M
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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Onkyo TX-SR603 Specifications

General IconGeneral
Channels7.1
Total Harmonic Distortion0.08%
Frequency Response10 Hz - 100 kHz
HDMI Inputs2
HDMI Outputs1
Component Video Inputs3
Component Video Outputs1
Digital Audio Inputs (Optical)2
Digital Audio Inputs (Coaxial)2
Audio Formats SupportedDolby Digital, DTS, Dolby Pro Logic II
THX CertifiedNo
Input Sensitivity/Impedance200 mV/47 kΩ
Signal-to-Noise Ratio100 dB
Power Output (per channel)90 Watts @ 8 Ohms
Video Inputs/OutputsComposite: 4 Inputs / 1 Output, S-Video: 1 Output

Summary

Model Variants and Safety Information

TX-SR603 Model Variants

Lists Black, Golden, and Silver models.

TX-SR603E Model Variants

Lists Black and Silver models.

TX-SR8360 Model Variants

Lists the Golden model variant.

Safety-Related Component Warning

Critical components for fire/shock risk, replacement instructions.

Technical Specifications

Amplifier and Video Specifications

Details on power, THD, impedance, video inputs/outputs, and frequency response.

Tuner and General Specifications

FM/AM specs, power supply, dimensions, weight, and other general details.

Service Procedures

Fuse Replacement and Initialization

Procedures for replacing fuses and initializing the unit to factory settings.

Microprocessor Check and Memory Backup

How to check the microprocessor version and details on the memory backup system.

Exploded Views - Part 1

Component Layout Diagram 1

Visual representation of component placement on the first part of the exploded view.

Exploded Views - Part 2

Component Layout Diagram 2

Visual representation of component placement on the second part of the exploded view.

Block Diagram

Audio and Digital Signal Flow

Illustrates the signal paths for audio inputs, tuner, digital sources, and outputs.

Schematic Diagrams - Part 1

Audio Input Section Schematic

Detailed circuit diagram for the audio input stage, showing component connections.

Schematic Diagrams - Part 2

DSP Section Schematic

Circuit diagram detailing the Digital Signal Processing (DSP) section and its connections.

Schematic Diagrams - Part 3

Power Amplifier Section (1/2)

Circuit diagram for the first part of the power amplifier section, showing transistor and resistor details.

Schematic Diagrams - Part 4

Power Amplifier Section (2/2)

Circuit diagram for the second part of the power amplifier section, detailing output stages.

Schematic Diagrams - Part 5

Speaker Terminal Section Schematics

Circuit diagrams for speaker terminal connections, including front, surround, and zone speakers.

Schematic Diagrams - Part 6

Power Supply Section Schematics

Circuit diagrams for the power supply units, detailing AC input and voltage selection.

Schematic Diagrams - Part 7

Display Section Schematic

Circuit diagram for the front panel display and related controls.

Schematic Diagrams - Part 8

Video Section Schematic

Detailed circuit diagram for video inputs, outputs, and processing.

PC Board Connection Diagram

Inter-Board Connectivity

Diagram showing how various PC boards are interconnected.

Printed Circuit Board Views - Part 1

U01 Video PC Board (Side A)

Component layout view of the Video PC Board (Side A).

Printed Circuit Board Views - Part 2

U01 Video PC Board (Side B)

Component layout view of the Video PC Board (Side B).

Printed Circuit Board Views - Part 3

U02 Display PC Board (Side A)

Component layout view of the Display PC Board (Side A).

Printed Circuit Board Views - Part 4

U02 Display PC Board (Side B)

Component layout view of the Display PC Board (Side B).

Printed Circuit Board Views - Part 5

U03 DSP PC Board (Side A)

Component layout view of the DSP PC Board (Side A).

Printed Circuit Board Views - Part 6

U03 DSP PC Board (Side B)

Component layout view of the DSP PC Board (Side B).

Printed Circuit Board Views - Part 7

U04 Switch PC Board (Side A)

Component layout view of the Switch PC Board (Side A).

U05 Headphone Jack PC Board (Side A)

Component layout view of the Headphone Jack PC Board (Side A).

Printed Circuit Board Views - Part 8

U06 Front Opt PC Board (Side A)

Component layout view of the Front Optical/IR PC Board (Side A).

U07 IR Terminal PC Board (Side A)

Component layout view of the IR Terminal PC Board (Side A).

Printed Circuit Board Views - Part 9

U09 Amplifier PC Board (Component Side)

Component layout view of the Amplifier PC Board (Component Side).

Printed Circuit Board Views - Part 11

U10 Sec. Terminal-2 PC Board (Component Side)

Component layout view of the Secondary Terminal-2 PC Board (Component Side).

U11 SBR Amplifier PC Board (Component Side)

Component layout view of the SBR Amplifier PC Board (Component Side).

U12 Thermal Sensor PC Board (Component Side)

Component layout view of the Thermal Sensor PC Board (Component Side).

Printed Circuit Board Views - Part 12

U15 Power Supply-1 PC Board (Component Side)

Component layout view of the Power Supply-1 PC Board (Component Side).

Printed Circuit Board Views - Part 13

U17 Power Supply-2 PC Board (Component Side)

Component layout view of the Power Supply-2 PC Board (Component Side).

U18 Sec. Terminal-1 PC Board (Component Side)

Component layout view of the Secondary Terminal-1 PC Board (Component Side).

Printed Circuit Board Views - Part 14

U19 Speaker Terminal PC Board (Component Side)

Component layout view of the Speaker Terminal PC Board (Component Side).

U20 Center Speaker Terminal PC Board (Component Side)

Component layout view of the Center Speaker Terminal PC Board (Component Side).

Printed Circuit Board Views - Part 15

U22 Driver Amplifier PC Board (Component Side)

Component layout view of the Driver Amplifier PC Board (Component Side).

Microprocessor Terminal Descriptions - Part 1

Q701 Microprocessor Pinout (1-50)

Detailed description of microprocessor Q701 pins 1 through 50, including I/O and function.

Microprocessor Terminal Descriptions - Part 2

Q701 Microprocessor Pinout (51-100)

Detailed description of microprocessor Q701 pins 51 through 100, including I/O and function.

Adjustment Procedures

Idling Current Adjustment Procedure 1

Steps for adjusting idling current after transistor or board replacement, including test points.

Adjustment Procedure Diagrams

Idling Current Adjustment - Figure 1

Diagram illustrating test points and trimming resistors for idling current adjustment on amplifier boards.

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