Read LG 37LT760H (CHASSIS:LD2FF) Service Manual online
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TROUBLESHOOTING GUIDE
1. Power-Up Boot Fail Trouble Shooting guide
2. No OSD Trouble Shooting guide
Check P2401 All
Voltage Level (3.5V, 12V, 24V).
Check P2401 All
Voltage Level (3.5V, 12V, 24V).
Check Q2407 output
Voltage(12V).
Check IC8700 RESET pin.
Check LVDS Cable.
Check X8701 Clock
10MHz.
Check IC8700 IIC
Communication status.
Check IR input state of IC8700
13pin.
Re-download NEC Micom
Check LCD Module
Control board
Check power connector and
RL_ON signal OK?
Check power connector and
RL_ON signal OK?
Check Q2407 application circuit
Or replace Q2407.
Check switch SW8700.
Replace Cable.
Check X8701 application circuit
or Replace X8701.
Check IIC line or replace
IC8700.
Check IR board.
Replace Power Board.
Replace Power Board.
N
N
N
N
N
N
N
N
Y
Y
Y
Y
Y
Y
Y
Y
N
N
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