LG CMS4540F/W Service Manual

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.
3-26
AUDIO ELECTRICAL TROUBLESHOOTIHG GUIDE

LG CMS4540F/W Specifications

General

Brand	LG
Model	CMS4540F/W
Category	Stereo System
Language	English