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50PM6700-TK (CHASSIS:PA22A) - LG TV Service Manual (repair manual). Page 34

Read LG 50PM6700-TK (CHASSIS:PA22A) Service Manual online

1. Power-Up Boot Fail Trouble Shooting
Replace Power board
N
Y
Check Micom Redownload or 
replace
Check P1100 All Voltage Level
(17V, 5V, 5V_ST)
Check Power connector
Y
Check Voltage Level 3.3V at 
C1105
N
Replace one of IC1100 & 
Recheck
Y
Y
Check Voltage Level 1.5V at 
C1121
N
Replace one of IC1105
& Recheck
Y
Y
Check Voltage Level 1.2V
at C1130
N
Replace one of IC1102 & 
Recheck
Y
Y
Replace IC103 EMMC Memory
Check All Voltage Level
at Bead
N
Replace one of Bead
& Recheck
Y
N
Replace one of IC400 ~ 403 
& Recheck
Y
Replace  IC100 & Recheck
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