Daewoo DTU-14XX ME Service Manual page 52

TROUBLE SHOOTING CHARTS
7. NO EXTERNAL AV(RF OK)
CHECK CONNECTION
OF AV1,AV2,DVD1,DVD2
NORMAL
CHECK SIGNAL AT PIN
49,52,55,68,69,70 OF I701
NORMAL
CHECK SIGNAL AT PIN
R,G,B 83,84,85 OF I701
NORMAL
CHECK SIGNAL AT
R,G,B Input and
R,G,B Ouput
of I901
ABNORMAL
ABNORMAL
ABNORMAL
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CHECK Signal of
AV1,AV2,DVD1,DVD2
CHECK / REPLACE
I701
CHECK/REPLACE
I901