Read LG 32LD333H (CHASSIS:LA06H) Service Manual online
Digital RF Trouble shooting guide
Check RF Cable
Check IIC Signal
TU5001 #7, 8 Pin
Check IIC line and level shifter
circuit
Y
N
Check Tuner 5V Power
IC401
Replace IC401
Y
N
Y
Check X201
and application circuit
Check IF Signal
TU5001 #10, 11 Pin
Check tuner application circuit or
replace tuner.
N
Y
Replace X201
N
Y
Replace IC101
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