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