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LG CM4330 User Manual

LG CM4330
67 pages
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Mini Hi-Fi System
SERVICE MANUAL
MODEL: CM4330
(CM4330, CMS4330F)
CAUTION
BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”
IN THIS MANUAL.
MODEL: CM4330 (CM4330, CMS4330F)SERVICE MANUAL
3102,MARCH72033067NFA:ON/P
Website http://biz.lgservice.com
Internal Use Only
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LG CM4330 Specifications

General IconGeneral
KaraokeNo
Bass reflexYes
Speaker type4-way
RMS rated power180 W
Number of speakers2
TypeHome audio mini system
Product colorBlack
Disc types supportedCD-R, CD-RW
Playback disc formatsCD audio
Audio formats supportedMP3, WMA
Supported radio bandsAM, FM
Display type-
Apple docking compatibilityNot supported
USB 2.0 ports quantity1
Power sourceAC
Volume controlRotary

Summary

SECTION 1 SUMMARY

SERVICING PRECAUTIONS

Guidelines for safe and proper handling of the pick-up unit during service.

ESD PRECAUTIONS

Procedures to prevent damage from electrostatic discharge to sensitive components.

HIDDEN KEY MODE

Instructions for activating special operational modes using specific button combinations.

PROGRAM DOWNLOAD & UPDATE GUIDE

Steps for downloading and updating the system's firmware via USB.

SPECIFICATIONS

GENERAL SPECIFICATIONS

Basic electrical and physical characteristics of the Hi-Fi system.

AMPLIFIER AND SPEAKER SPECIFICATIONS

Details on audio power output, impedance, and speaker technical data.

SECTION 2 CABINET & MAIN CHASSIS

EXPLODED VIEWS AND COMPONENT SECTIONS

Illustrated breakdowns of the unit's main frame, mechanism, and speaker components.

PACKING ACCESSORY SECTION

List and illustration of accessories included in the product packaging.

SECTION 3 ELECTRICAL

ONE POINT REPAIR GUIDE

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

AUDIO ELECTRICAL TROUBLESHOOTING GUIDE

Diagnostic procedures for various audio system malfunctions and electrical faults.

CIRCUIT DIAGRAMS

Detailed schematics of the power supply, main, and front circuit boards.

WAVEFORMS OF MAJOR CHECK POINT

Visual representations of crucial signal waveforms for diagnostic analysis.

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