Read LG 55LS675H (CHASSIS:LA2AG) Service Manual online
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TROUBLESHOOTING
1. Power-Up Boot Fail Trouble Shooting guide
Check P401 All
Voltage Level (3.5V, 12V, 24V)
Check power connector and
RL_ON signal OK ?
Replace Power board
Y
N
Y
Check IC5002
RESET and UPDATE pin
Check switch SW501, SW502
Y
N
Check X5000 Clock
32.768MHz
Check X5000 application circuit
or Replace X5000
Y
N
Check IC5002 IIC
communication state
Check IIC line or replace IC5002
N
Check IR input state of IC5002
57pin
Check IR board
N
Y
Re-download PTC Micom
Y
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