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60PV550U-UC (CHASSIS:PU14K) - LG TV Service Manual (repair manual). Page 27

Read LG 60PV550U-UC (CHASSIS:PU14K) Service Manual online

Check  P301 All
Voltage Level (16V,5V)
Check Power connector
OK ?
Replace Power board
Y
N
Y
Check C311 
Voltage Level 5V
Replace Q302
Y
N
Check IC303 (pin2)
Voltage Level 3.3V
Replace IC303
Y
N
Check IC203 Flash Memory
Check  IC302 (pin2) Output
Voltage Level (3.3V) 
Replace  IC302
N
Y
Power-Up Boot Fail
Trouble Shooting Guide
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