LG CM4540 - Tuner Function Check

8. TUNER FUNCTION CHECK
TUNER FUNCTION CHECK
Check tuner module voltage
(Pin4: +3.3 V).
NO
Check tuner
module(TU500)
operation.
YES
YES
Check IC501 Pin P8, P10, P11, T15.
Check tuner module data.
NO
YES
Refer to function check.
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AUDIO ELECTRICAL TROUBLESHOOTIHG GUIDE