Circuit Diagrams; Smps - Power Circuit Diagram - LG S62T1-C Service Manual

CIRCUIT DIAGRAMS

1. SMPS - POWER CIRCUIT DIAGRAM

12
No Power
BD901 is Defective
11
10
9
8
7
IC901, IC902 are Defective
6
5
No Power
F901 is Defective
4
3
2
Warning
Parts that are shaded are critical with
respect to risk of fire or electrical shock.
1
A B C D
No Power
D911 is Defective
S/W Error
No AMP Power
PC901, Q901 are Defective
E F G H
2-101
IMPORTANT SAFETY NOTICE
WHEN SERVICING THIS CHASSIS, UNDER
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
FLD No Power
Vkk No Power
D950 is Defective
D951 is Defective
6.3 VA No Power
D952 is Defective
13 VA No Power
D953 is Defective
3.7 VA No Power
Switching Error
D918 is Defective
PC900, IC952 are Defective
Vcc No Power
D955 is Defective
Switching Error
PC902, IC953 are Defective
I J K L M
2-102
IN THE ORIGINAL CIRCUIT. SPECIAL COMPONENTS ARE NOTE :
SHADED ON THE SCHEMATIC FOR EASY IDENTIFICATION. 1. Shaded(
NO
THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIFFER FROM specified part number.
THE ACTUAL CIRCUIT USED. THIS WAY, IMPLEMENTATION 2. Voltages are DC-measured with a digital voltmeter during Play
OF THE LATEST SAFETY AND PERFORMANCE mode.
IMPROVEMENT CHANGES INTO THE SET IS NOT DELAYED
UNTIL THE NEW SERVICE LITERATURE IS PRINTED.
Vcc No Power
ZD950, ZD951 are Defective
N O P Q
) parts are critical for safety. Replace only with
SMPS
EAX64755401, REV1.2(2)
2011. 12. 27
R S T