Circuit Diagrams - LG LHB976 Service Manual

CIRCUIT DIAGRAMS

1. MAIN SET CIRCUIT DIAGRAM
1-1. SMPS CIRCUIT
12
11
10
9
8
7
6
5
4
3
2
Warning
Parts that are shaded are critical with
1
respect to risk of fire or electrical shock.
A B C D E F G H I
2-131
IMPORTANT SAFETY NOTICE
WHEN SERVICING THIS CHASSIS, UNDER NO
CIRCUMSTANCES SHOULD THE ORIGINAL DESIGN
BE MODIFIED OR ALTERED WITH OUT PERMISSION
FROM THE LG CORPORATION. ALL COMPONENTS
SHOULD BE REPLACED ONLY WITH TYPES
IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT.
J K L M N
2-132
SPECIAL COMPONENTS ARE SHADED ON THE NOTE :
SCHEMATIC FOR EASY IDENTIFICATION. 1. Shaded( ) parts are critical for safety. Replace only
THIS CIRCUIT DIAGRAM MAY OCCASIONALLY with specified part number.
DIFFER FROM THE ACTUAL CIRCUIT USED. THIS 2. Voltages are DC-measured with a digital voltmeter
WAY, IMPLEMENTATION OF THE LATEST SAFETY during Play mode.
AND PERFORMANCE IMPROVEMENT CHANGES
INTO THE SET IS NOT DELAYED UNTIL THE NEW
SERVICE LITERATURE IS PRINTED.
O P Q R
SMPS
EBY61089401, REV5.2
2010.12.07
S T