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Sony SCD-XB940 Service Manual

Sony SCD-XB940
73 pages
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SERVICE MANUAL
SUPER AUDIO CD PLAYER
AEP Model
UK Model
SPECIFICATIONS
SCD-XB940
Model Name Using Similar Mechanism NEW
CD Mechanism Type CDM55B-DVBU3
Base Unit Name DVBU3
Optical Pick-up Name KHM-220AAA/J1N
– Continued on next page –
Photo: Black type
Ver 1.1 2002.05
9-929-212-12 Sony Corporation
2002E0500-1 Home Audio Company
C 2002.05 Published by Sony Engineering Corporation

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Sony SCD-XB940 Specifications

General IconGeneral
Channels2
Total Harmonic Distortion0.002%
Dynamic Range100 dB
Output Level2.0 V
Digital OutputCoaxial
Analog OutputRCA
Disc FormatsCD, CD-R, CD-RW
Frequency Response2 Hz - 20 kHz
Dimensions430 x 115 x 290 mm
TypeSuper Audio CD Player
Digital-to-Analog Converter1-bit D/A converter

Summary

Servicing Notes

Handling Optical Pick-up Block

Notes on safely handling the optical pick-up block to prevent electrostatic damage.

Laser Diode Emission Check

Guidelines for safely checking the laser diode emission from the optical pick-up.

Tray Opening Procedure

Methods to manually open the disc tray when the power is off.

Model Identification

Details for identifying the AEP and UK models by part numbers.

E01 Display Error

Troubleshooting steps for the "E01" display error.

General Unit Information

Front and Rear Panel Descriptions

Overview of controls and connectors on the front and rear panels.

Remote Control Functions

Description of buttons and features on the remote commander.

Compatible Disc Types

Information on playable disc formats and incompatible disc types.

Disassembly Procedures

Cover and Front Panel Removal

Procedure for disassembling the outer cover and front panel sections.

Board Component Removal

Steps for removing the audio/main board and mechanism deck.

Tray Removal

Specific instructions for removing the disc tray.

Diagrams and Waveforms

Printed Wiring and Schematic Notes

General notes and symbols used in diagrams and PWB layouts.

TK Board Diagrams

Printed wiring board and schematic diagrams for the TK board.

MAIN Board Diagrams

PWB layouts and schematic diagrams for the MAIN board (multiple parts).

AUDIO Board Diagrams

Printed wiring board and schematic diagrams for the AUDIO board.

Other Board Diagrams

PWB layouts and schematic diagrams for HP, Loading, Display, Power, and AC SW/Transformer boards.

Waveforms

Illustrations of key signal waveforms for various boards.

IC Block Diagrams

Block diagrams illustrating the internal structure of key ICs.

Exploded Views

Cover Section Exploded View

Exploded view diagram showing the components of the cover section.

Front Panel Section Exploded View

Exploded view diagram showing the components of the front panel section.

Chassis Section Exploded View

Exploded view diagram showing the components of the chassis section.

Mechanism Deck Exploded View

Exploded view diagram showing the components of the mechanism deck.

Electrical Parts List

Electrical Parts Listing

Comprehensive list of electronic components used in the unit.

Supplement-1: Test Mode

Test Mode Operation and Navigation

How to enter, exit, and navigate the test mode menus.

Self-Diagnosis Test Modes

Details on various self-diagnosis tests for system components.

Adjustment and Calibration Modes

Procedures for auto-adjustments, manual operations, and disc checks.

Specific Test Functions

Descriptions of other test modes like Version Info and RF Jitter.

Error Code Reference

Tables listing mechanism and DSP error codes and their meanings.

Revision History

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