Daewoo 712B Service Manual page 22

6. Unstable Picture
6-1. Horizontal
input pin of IC501
Trouble in IC501
All manuals and user guides at all-guides.com
Unstable
picture
Is H.Sync
No
correct?
Yes
Is the
No
pin 1 of IC501
5V?
Yes
20
Check H.Sync Out of
Micom or its ambient
circuits.
Check the value of
C514, R516