Daewoo DTD-14D3 ME Service Manual page 56

APPENDIX
TROUBLE SHOOTING CHARTS
6. NO EXTERNAL A/V (RF OK)
CHECK EXTERNAL
AUDIO & VIDEO SIGNAL
I602,I571
ABNORMAL
NORMAL
CHECK SIGNAL AT PIN
1,28,30,32 OF I602
ABNORMAL
NORMAL
CHECK / REPLACE
I602
7. REMOTE CONTROL UNIT TROUBLE (LOCAL CONTROL OK)
CHECK PULSE AT COLLECTOR
OF Q1(TRANSMITTER BOARD)
NORMAL
CHECK PULSE AT PIN
24 OF I701
NORMAL
CHECK / REPLACE
701 & PERIPHEPAL COMPONENT
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CHECK RCA &
SCART JACK
CHECK / REPLACE
I701
ABNORMAL
ABNORMAL
- 25 -
CHECK / REPLACE
I571
CHECK / REPLACE
1,Q1 (TRANSMITTER BOARD)
CHECK IC1
R-2021-NM
CHECK SIGNAL AT
X1,C1 AND REPLACE
CHECK / REPLACE
IF01