LG 32LG710H Service Manual page 43

Power-Up Boot Fail Trouble Shooting guide
Check P400 All
Voltage Level (5V, 12V, 24V)
Check IC501 RESET and
UPDATE pin
Check X500 Clock
7.37MHz
Check IC502 IIC communication
Check IR input state of IC501
Re-download PTC Micom
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Only for training and service purposes
Check power connector and
N
RL_ON signal OK ?
Y
N
Check switch SW500, SW501
Y
Check X500 application circuit
N
or Replace X500
Y
N
Check IIC line or replace IC501
state
Y
N
Check IR board
23pin
Y
Y
Replace Power board
LGE Internal Use Only