LG Electronics 42LT760H-ZA 8. Analog RF Audio Trouble Shooting guide

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8. Analog RF Audio Trouble Shooting guide
Check RF cable & signal.
Check IC5400.
Check Audio AMP output L5402,
L5403, L5404, L5405.
Replace IC105.
Check TU6500 Pin6.
(SIF output) Replace Tuner.
Replace L5402, L5403, L5404,
L5405.
Replace IC5400.
Check C352.
(SIF signal to IC105)
N
N
N
Y
Y
Y
Y
Y