Read LG 26LT673H (CHASSIS:LA2AM) Service Manual online
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TROUBLESHOOTING
Power-Up Boot Fail Trouble Shooting guide
No OSD 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
32.768KHz
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
Check LVDS Cable
Check LCD Module
Control board
Y
Replace Cable
N
Check P401 All
Voltage Level (5V, 12V, 24V)
Check power connector and
RL_ON(pin1) signal OK ?
Replace Power board
N
Y
Check Q409 output
Voltage(12V)
Y
Check Q409 application
circuit or replace Q409
N
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