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Pioneer VSX-523-K Service Manual

Pioneer VSX-523-K
101 pages
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ORDER NO.
PIONEER CORPORATION 1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, Japan
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION
2013
2013 Printed in Japan
VSX-5231
RRV4483
AV Receiver
VSX-5231
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
This service manual should be used together with the following manual(s).
For SPECIFICATIONS and PANEL FACILITIES, refer to the operating instructions.
Model Type Power Requirement Remarks
VSX-5231 CUXESM AC 120 V
Model No. Order No. Remarks
VSX-523-K/CUXESM RRV4418
K-ZZZ JULY
jomi

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Pioneer VSX-523-K Specifications

General IconGeneral
Channels5.1
Power Output (Watts per Channel)80
HDMI Inputs4
HDMI Outputs1
Network ConnectivityNo
3D SupportYes
4K Pass-ThroughYes
USB PortYes
BluetoothNo
Wi-FiNo
Audio Formats SupportedDolby TrueHD, DTS-HD Master Audio
Input Sensitivity/Impedance200mV/47k ohms
Signal-to-Noise Ratio98dB
Frequency Response5 Hz - 100 kHz, +0 dB/-3 dB
Total Harmonic Distortion0.08%

Summary

SAFETY INFORMATION

SAFETY PRECAUTIONS AND PRODUCT NOTICES

General safety checks, warnings, and product safety notices for technicians.

SERVICE PRECAUTIONS

NOTES ON SOLDERING

Guidance on using lead-free solder and soldering iron for environmental protection.

NOTES ON REPLACING PARTS

Identifies parts difficult to replace as discrete components; requires whole Assy replacement.

SPECIFICATIONS

SPECIFICATIONS OVERVIEW

Details amplifier, audio, video, tuner, digital I/O, and miscellaneous specs.

BASIC ITEMS FOR SERVICE

CHECK POINTS AFTER SERVICING

Confirms recommended check points to maintain product quality after repairs.

BLOCK DIAGRAM

OVERALL WIRING DIAGRAM

Shows the main signal flow and connections between major assemblies.

AUDIO BLOCK DIAGRAM

Illustrates the signal path for the audio processing section.

POWER SUPPLY BLOCK DIAGRAM

Shows the power distribution and regulation stages.

DIAGNOSIS

TROUBLESHOOTING

Provides flowcharts for diagnosing common issues like 'No Power'.

PROTECTION CIRCUIT

Diagrams for overload, DC, and thermal protection circuits.

IC INFORMATION

Pin functions and descriptions for the main and sub CPU ICs.

SERVICE MODE

Display mode for numbers of protection detections

How to enter and use display mode for protection detection counts.

Reset mode for numbers of protection detections

Procedure to reset protection detection counts to zero.

Unit Operation on Error Detection

DC (AMP Abnormality) Error Detection

Unit behavior and indications during DC error detection.

OVERLOAD (Overcurrent) Error Detection

Unit behavior and indications during overload error detection.

TEMP (AMP Overheat) Error Detection

Unit behavior and indications during temperature error detection.

Cancel DC Error Status

Procedure to cancel key input inhibition after DC error detection.

DISASSEMBLY PROCEDURES

Discharging Capacitors

Procedure for discharging capacitors in MAIN Assy and CPU Assy.

D-MAIN Assy Procedures

Disassembly and diagnosis procedures for the D-MAIN Assy.

EACH SETTING AND ADJUSTMENT

ADJUSTMENT REQUIRED WHEN REPAIRED OR REPLACED

Details adjustments needed after replacing specific assemblies or parts.

UPDATING OF THE FIRMWARE

IDLE CURRENT ADJUSTMENT

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