Daewoo DTD-14D3 ME Service Manual page 51

2. NO PICTURE (RASTER OK)
CHECK SIGNAL AT PIN
39 OF I501
ABNORML
CHANGE INPUT MODE
RF -> AV -> RF
CHECK SIGNAL
IF OF TUNER
ABNORML
CHECK SIGNAL AT PIN
54 OF I501
ABNORML
CHECK / REPLACE
I571 &
Peripheral Compnents
CHECK / REPLACE
SF 101,Q102,Q203
CHECK / REPLACE
SCL,SDA SIGNAL &
TUNER
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NORMAL
NORMAL
NORMAL
- 20 -
TROUBLE SHOOTING CHARTS
CHECK SIGNAL AT PIN
22,23,24 OF I501
NORMAL
ABNORML
CHECK VOLTAGE AT PIN
14 OF I501
NORMAL
CHECK SIGNAL AT PIN
12(X-TAL) OF I501
CHECK SIGNAL AT
CATHODE OF CRT
ABNORML
CHECK / REPALCE
CRT BOARD
APPENDIX