Daewoo DV6T812N Service Manual page 15

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