Daewoo DTH-25G1FST/FSP/FS, Service Manual, Page: 28 / 63

TROUBLE SHOOTING CHARTS
3. NO PICTURE
Step Check Point
Condition
Rem ark
Yes N o
1 W aveform is fig.2 next step Check/replace TU 01
2 C heck 33V next step Check/replace R107, D103, R416, R102
3 C heck 5V next step Check/replace R101, D101
4 C heck 9V next step Check/replace L102, L105
5 C heck signal pulse next step Check/replace RC 104, I701, TU 01
6 C heck signal pulse next step Check/replace RC 103, I701, TU 01
7 C heck AG C voltage Check/replace I501 0~7.0 V dc