Sony PFM-42X1 Service Manual page 38

NO RASTER ON Y, Pb, Pr/Y,Cb Cr SIGNAL
Replace Device
Q53, 54, 55, 50, 51, 52
3-4
Repeat
'A ' Process
Input Select
Input 1, Option
Pass
480P
480i
Check
Microvision Copy
Protection & Input Select
IC43(CXA2171)
Pass Pass
Power S/W off and on
after removing the Input
signal cable
720P
Pass
1080i
Fail
Check
Analog Switch DTV
IC4(BA7657)
Pass
Check
Fail
IC12(AD9888)
. In/Out H/V Sync
. Output Data
Pass
Check
IC10(FLI2310)
. S2310-RESET
. In/Out H/V Sync
. Output Data
Pass
Replace
the Main Board
Replace
the Main Board
Fail
Replace
the Main Board
PFM-42X1/42X1N