Read LG 32LG710H (CHASSIS:LA95A) Service Manual online
Digital RF Trouble shooting guide
Check RF Cable
Check IIC Signal
TU100 #7, 8 Pin
Check IIC line and level shifter
circuit
Check LGDT3305 Output
Clock(R141), Data(R142)
Clock(R141), Data(R142)
, Sync(R140)
Y
Y
N
Check Tuner 5V Power
IC401
Replace IC401
Y
N
Y
Maybe LGDT3305(IC1001) has
problems
N
Check X100
and application circuit
Check IF Signal
TU1001 #10, 11 Pin
Check tuner application circuit or
replace tuner.
N
Y
Replace X1200
N
Y
Replace IC101
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