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LG FFH-286A User Manual

LG FFH-286A
49 pages
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3CD CHANGER
HI-FI SYSTEM
SERVICE MANUAL
MODEL : FFH-286A/AD, FE-286E
SERVICE MANUAL MODEL:
FFH-286A/AD, FE-286E
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LG FFH-286A Specifications

General IconGeneral
BrandLG
ModelFFH-286A
CategoryStereo System
LanguageEnglish

Summary

SECTION 1. GENERAL

SERVICING PRECAUTIONS

Guidelines for safe and proper servicing of the device.

NOTES REGARDING HANDLING OF THE PICK-UP

Specific instructions for handling the sensitive pick-up component.

NOTES REGARDING COMPACT DISC PLAYER REPAIRS

Precautions for servicing CD player components, including static electricity.

ESD PRECAUTIONS

Measures to prevent damage from electrostatic discharge to sensitive components.

CAUTION. GRAPHIC SYMBOLS

Explanation of hazard symbols used in the manual for safety awareness.

SECTION 2. ELECTRICAL

ADJUSTMENTS

Procedures for aligning and calibrating the system's circuits.

TROUBLESHOOTING

Flowchart for diagnosing and resolving common malfunctions in the unit.

WAVEFORMS OF MAJOR CHECK POINT

Illustrations of critical signal waveforms for troubleshooting and alignment.

INTERNAL BLOCK DIAGRAM OF ICs

FAN8039BD3 5-CH Motor Driver

Block diagram and pin definitions for the 5-channel motor driver IC.

KA78R33 Low Dropout Voltage Regulator

Internal block diagram and description of the voltage regulator.

LC72131 AM/FM PLL Frequency Synthesizer

Block diagram of the PLL frequency synthesizer IC.

LA1837 Single-Chip Home stereo IC

Block diagram of the AM/FM IF and MPX IC.

KIA 78R12 PI 4 TERMINAL LOW DROP VOLTAGE REGULATOR

Electrical characteristics table for the KIA78R12 voltage regulator.

BA3126N 2-channel head switch

Description of the 2-channel head switch for radio cassette recorders.

BU2090F 12-bit, Serial IN, Parallel OUT driver

Block diagram and pin description for the serial-to-parallel driver IC.

SECTION 3. EXPLODED VIEWS

CABINET AND MAIN FRAME SECTION

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

TAPE DECK MECHANISM: AUTO STOP DECK(OPTIONAL)

Exploded view of the optional auto-stop tape deck mechanism.

TAPE DECK MECHANISM: AUTO REVERSE DECK

Exploded view of the auto-reverse tape deck mechanism.

CD MECHANISM

Exploded view of the CD playback mechanism and its parts.

SECTION 4. SPEAKER SECTION

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