Sony PCS-1500 Service Manual page 187

V-4
IR input is OK?
YES
Pictures from
both appear by pressing
"T" in pre-filter
input?
YES
There is no problem
PCS-1500/1500P
NO
NO
IC350, IC351 or their peripheral
Board is connected
to FFC correctly in the
PCS-1500/1500P?
The PCS-1500/1500P
works when the IPM board
is replaced?
Replace the IPM board
NO
Connect them again
YES
NO
YES
The PCS-1500/1500P
works when the DE-54 board
is replaced?
YES
Replace DE-54 board
4-2. Self-diagnostics Function
NO
CN902 and its peripheral
4-57