Samsung TXT3093WHX Service Manual page 77

Troubleshooting
4. When there is no DTV signal output (DTV Block Check)
no signal
Half NIM
CHANGE
no signal
SYSTEM B'd
CHANGE
no signal
SYSTEM B'd
CHANGE
no signal
CXA2165
CHANGE
6-8
NO SIGNAL
TU01S #10,11 IF_O
CHECK (TUNER)
OK
DIC2000(X242H) output
MPEG #A15, #A16(DR2167
CHECK
OK
DIC4000(PW9050L)) output
DL4005~DL4007 check
OK
DIC01 output #62,#63
#64 check (CXA2165)
OK
signal picture CHECK
OK
REPAIR END
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