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8. TUNER FUNCTION PART CHECK
TUNER FUNCTION PART CHECK
Check the TUNER module
(TU601) operation
Check the input
waveform of IC200( BU4052) 1,12PIN
Check the output
waveform of IC200 (BU4052)3, 13PIN
Check the input waveform of IC601
(BU4052)2, 15PIN
Check the input waveform of IC801.
OK
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
YES
YES
YES
YES
YES
NO
Check the TUNER MODULE power
(check the 2PIN 9V)
NO
Check the IC200 (BU4052)
16PINVDD, 8PIN VSS power
Replace the related part
NO
Check the IC801( MC4580)
4PIN VSS, 8PIN VDD power
Replace the related part
3-7
YES
YES
LGE Internal Use Only
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