Tuner Function Check - LG CM2630B Service Manual

ELECTRICAL TROUBLESHOOTING GUIDE

7. TUNER FUNCTION CHECK

Tuner function check
Check
tuner module(TU100)
operation.
YES
Check IC200(CS5346)_Pin41, 42, 43, 44
output waveform.
YES
Waveform OK?
YES
Check IC501 I2S data.
(Pin81, 85, 86)
YES
OK
NO
Check tuner module voltage
(Pin6 : +3.3 V).
Replace the module.
NO
Check or replace IC200.
NO
Replace IC501.
3-11
NO