Daewoo DSC-30W60N Service Manual page 29

Troubleshooting charts
Check the following signals.
HP : pin 6 of PW01V
33.75KHz
VP : pin 7 of PW01V
60Hz
Check HP signal is to pin 13 of IC216 through IC204.
NO
Check IC204
Check HP signal is to pin 14 of IC216 .
Check EVEN/ODD signal is to pin 1 of IC216.
Pins 9, 10, and 11 : High (to be HD Component ), Low (no HD Component)
Check IC209.
HP signal is input to pin 1. DEC_HS (HP) is output to pin 15.
EVEN/ODD (VP) signal is input to pin 13.
DEC_VS (EVEN/ODD) signal is output to pin 14.
Pins 9, 10, and 11 : High (to be HD Component ), Low (no HD Component)
DEC_HS and DEC_VS of PA06D to DTV Decoder module
S1
5Vp-p
5Vp-p
YES
YES
YES
YES
NO
Check HP signal of Q426's base.
NO
Check VP signal of Q415's base.
YES
Check VP signal is to pin 21 of IC212.
YES
Check EVEN/ODD signal is to pin 46 of IC 212
YES
28
NO
Check IC204.
NO
Check IC212.
NO
Check IC216.
Check IC209.
END