DAEWOO DVK10DY
Instrukcja Serwisowa

C.REC Luminance NG
Is the video signal obtained from pin 31 of IC301? YES NO Check Scart jack or A/V jack and pattern

Is ON/OFF 5V supplied to pin 26 and pin 54 of IC301 at 5volts?

NO

Check ON/OFF 5V

YES

Is REC(H) supplied to anode of DA01 at 4.2volt?

NO

Check SSB Data and REC(H)

YES Is the video signal from pin 31 of IC301 fed to pin 38 of IC301? NO

Check IC301

YES

Is the luminance signal from pin 36 of IC301 fed to pin 35 of IC301?

NO

Check C302

YES

Is the luminace signal from pin 47 of IC301 fed to pin 52 of IC301? YES

NO

Is QV SYNC (H) supplied to anode of D301 at 0 volt? NO YES

Change IC301

Check QV SYNC

Is the modulating luminance signal from pin 52 of IC301 fed to pin 15 of ICA01? YES

NO Check record EQ circuit

To HEADAMP IC

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