Daewoo DV6T811N-LT, Service Manual

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14
TROUBLESHOOTING
E. No sound in broadcasting (Stereo)
Is 5V obtained at IC101
pin#1, 11, 33?
Oscillation of IC101 pin#5,6?
YES
NO
NO
NO
YES
YES
Is SIF output from RF101
pin#18 to IC101 pin#2?
Is AUDIO output at IC101
pin#26, 27?
Check IC251 pin#2,3.
Check POWER circuit.
Exchange X101.
Check RF101.
Exchange IC101.
NO
NO
Is Video signal input at IC601
pin#50?
Check POWER circuit.
No OSD appears.
Is 5V obtained at IC601 pin#
53, 98, 99?
Is Video signal output at IC601
pin#52?
NO
Replace IC601.
D. No OSD(On Screen Display) appears
YES
YES
NO
Check IC 601. Check IC 601.