Circuit Diagrams; Smps - Power #1 Circuit Diagram - LG CM9750 Service Manual

CIRCUIT DIAGRAMS

1. SMPS - POWER #1 CIRCUIT DIAGRAM

No Power
BD901 or BD902 is Defective
12
11
10
9
8
7
6
5
4
No Power
F901 is Defective
3
2
CAUTION:
Danger if fuse is incorrectly replaced.
1
Replace only with the type identical to fuse rating
and(or) model name described in main label.
A B C D
Warning
Parts that are shaded are critical with
respect to risk of fire or electrical shock.
E F G H
IMPORTANT SAFETY
WHEN SERVICING THIS CHASSIS, UNDER NO
CIRCUMSTANCES SHOULD THE ORIGINAL DESIGN
BE MODIFIED OR ALTERED WITHOUT PERMISSION
FROM THE LG CORPORATION. ALL COMPONENTS
SHOULD BE REPLACED ONLY WITH TYPES
IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT.
SPECIAL COMPONENTS ARE SHADED ON THE
I J K L M
3-49 3-50
NOTE :
SCHEMATIC FOR EASY IDENTIFICATION. THIS 1. Shaded( ) parts are critical for safety. Replace only
CIRCUIT DIAGRAM MAY OCCASIONALLY DIFFER with specified part number.
FROM THE ACTUAL CIRCUIT USED. THIS WAY, 2. Voltages are DC-measured with a digital voltmeter
IMPLEMENTATION OF THE LATEST SAFETY AND during Play mode.
PERFORMANCE IMPROVEMENT CHANGES INTO
THE SET IS NOT DELAYED UNTIL THE NEW
SERVICE LITERATURE IS PRINTED.
No Power
Q902 ~ Q905 are Defective
N O P Q R
SMPS 1/2
EAX66225601_1.5(5)-SD(#1)
2014. 12. 22
S T