LG 50PG30 Service Manual page 13

Power-Up Boot Fail Trouble Shooting
Check P701 All
Voltage Level (16V, 5V)
Y
Check Q706 Output
Voltage Level (5V)
Y
Check IC706 #2 Pin
Voltage Level 2.6V
Y
Check X100 Clock
12MHz
Y
Replace IC105 Flash Memory
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Only for training and service purposes
TROUBLE SHOOTING GUIDE
Check Power connector
N
N
Replace Q801
Replace IC706 &
N
Recheck
N
Replace 100
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Y
OK ?
Replace Power board
LGE Internal Use Only