Zenith lx 140 service en

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zenith

SERVICE MANUAL

Product Type: MICRO COMPONENT
Chassis: 6720AA0008A

Manual Series: LX-14o

Manual Part #: 3829RAT11 OF

Model Line:E

Product Year: 2004

Model Series:

LX-1 40

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CONTENTS

SECTION 1. GENERAL .................................................... 1_2
SECTION 2. ELECTRICAL ---------------
SECTION 3. EXPLODED VIEWS

SECTION 4. SPEAKER PART ..........
SECTION 5_ REPLACEMENT LIST .................................. 5_1

Published FEBRUARY 2004
LG Electronics Alabama, Inc.
201 James Record Road
Huntsville, Alabama 35824-1513

Primed in korea

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(- [CONTENTS] -\

O SECTION 1. GENERAL

~ SERVICING PRECAUTIONS ............................................... 1-2
0 ESD PRECAUTIONS ..................................................... 1-4
~ SPECIFICATION .......................................................... 1-5

O SECTION 2. ELECTRICAL

- ADJUSTMENTS ......................................................... 2-1
~ TROUBLESHOOTING .................................................... 2-2
. WAVEFORMS OF MAJOR CHECK POINT .................................... 2-11
- BLOCK DIAGRAM ....................................................... 2-21
~ SCHEMATIC DIAGRAMS ................................................. 2-23
~ WIREING DIAGRAM ..................................................... 2-31
- PRINTED CIRCUIT DIAGRAMS ............................................ 2-32
~ INTERNAL BLOCK DIAGRAM OF ICs ....................................... 2-39

0 SECTION 3. EXPLODED VIEWS
- CABINET AND MAIN FRAME SECTION ........................................ 3-1

0 SECTION 4. SPEAKER

° SPEAKER PART .......................................................... 4-1

O SECTION 5. REPLACEMENT PARTS LIST
~ REPLACEMENT PARTS LIST ................................................ 5-1

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