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LCD TV
P800 Pin #7~#10
Voltage Level = 5V ?
YES
P800 Pin #2
Voltage level = 5V ?
YES
P800 Pin #13, 14 = 12V
P800 Pin #17, 18 = 24V ?
YES
MAIN B'D L815 = 3.3V ?
YES
MAIN B'D L816 = 1.26V ?
YES
MAIN B'D L809 = 1.8V ?
YES
Check MAIN B'D X100 Clock
12MHz
YES
Replace MAIN B'D IC102
NAND FLASH
Copyright ⓒ 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Symptom
Power-Up Boot Fail
Check Power connector
OK ?
NO
Replace MAIN B'D Q801
NO
Replace Power Board
NO
Replace MAIN B'D IC804
NO
Replace MAIN B'D IC805
NO
Replace MAIN B'D IC807
NO
Replace MAIN B'D IC100
NO
Replace MAIN B'D IC103
Serial Flash
NO
Making
Revision
Replace Power Board
YES
Replace MAIN B'D
IC300, IC301 DDR2 Memory
NO
2009. 2 . 1
Replace MAIN B'D IC100
NO
1/25
LGE Internal Use Only
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