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LG CM9530 User Manual

LG CM9530
87 pages
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Mini Hi-Fi System
SERVICE MANUAL
MODEL: CM9530
(CM9530, NS9530F/W)
CAUTION
BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”
IN THIS MANUAL.
MODEL: CM9530 (CM9530, NS9530F/W)SERVICE MANUAL
P/NO : AFN75914290 JANUARY, 2013
Website http://biz.lgservice.com
Internal Use Only

Table of Contents

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LG CM9530 Specifications

General IconGeneral
BrandLG
ModelCM9530
CategoryStereo System
LanguageEnglish

Summary

SECTION 1 SUMMARY

SERVICING PRECAUTIONS

Safety guidelines for handling sensitive components like the pick-up.

ESD PRECAUTIONS

Measures to prevent damage from static electricity to sensitive devices.

HIDDEN KEY MODE

Special function activation using front keys and remote.

SERVICE INFORMATION FOR EEPROM

Procedures for accessing and modifying EEPROM data.

PROGRAM UPGRADE GUIDE

Steps for updating the system firmware via USB.

SPECIFICATIONS

Technical details and performance characteristics of the system.

SECTION 2 CABINET & MAIN CHASSIS

CABINET AND MAIN FRAME SECTION (CM9530)

Exploded view of the main unit's chassis and frame components.

MECHANISM DECK SECTION (DP17TM)

Exploded view of the optical disc mechanism.

PACKING ACCESSORY SECTION

List and illustration of included accessories and packaging materials.

SPEAKER SECTION

Exploded views and details of the front and subwoofer speakers.

SECTION 3 ELECTRICAL

ONE POINT REPAIR GUIDE

Step-by-step troubleshooting for common power and sound issues.

ELECTRICAL TROUBLESHOOTING GUIDE

Flowcharts for diagnosing power supply and system operation failures.

WAVEFORMS OF MAJOR CHECK POINT

Oscilloscope waveform examples for key signals during testing.

WIRING DIAGRAM

Diagram illustrating the interconnections between major PCB units.

BLOCK DIAGRAMS

High-level overview of the system's functional blocks and power distribution.

CIRCUIT DIAGRAMS

Detailed schematics for various system sections like SMPS and amplifier.

CIRCUIT VOLTAGE CHART

Table listing specified and measured voltages for SMPS board components.

PRINTED CIRCUIT BOARD DIAGRAMS

Top and bottom views of major PCBs for component identification.

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