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3. Analog RF Video Trouble Shooting guide
Check RF cable & signal.
Y
Check TU6500 Pin8.
(Video output)
Y
Check tuner 5V power L6501.
Y
Check tuner 3.3V power L6502.
Y
Check tuner 1.8V power IC6501
2pin : 1.8V
Y
Check MTK LVDS output.
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Only for training and service purposes
N
Replace Tuner..
N
Check IC2404.
N
Replace L6502
N
Replace IC6501.
N
Replace IC105.
- 17 -
N
Replace IC2404.
LGE Internal Use Only
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