Read LG 42PG20-UA (CHASSIS:PU84A) Service Manual online
- 12 -
TROUBLE SHOOTING GUIDE
Power-Up Boot Fail Trouble Shooting
Check P701 All
Voltage Level (16V, 5V)
Check Power connector
OK ?
Replace Power board
Y
N
Y
Check IC706 #2 Pin
Voltage Level 2.6V
Replace IC706 &
Recheck
Y
N
Check X100 Clock
12MHz
Replace 100
Y
N
Replace IC105 Flash Memory
Check Q706 Output
Voltage Level (5V)
Replace Q801
N
Y
Click on the first or last page to see other 42PG20-UA (CHASSIS:PU84A) service manuals if exist.