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No Raster on video Signal
(Video1)
No Raster on TV(RF)
Signal
Check short of main B/D
& JACK B/D
Check cable
and jack
Repeat A PROCESS
Check the output of
TU100(tuner)
Pass
Pass
Pass
Pass
Pass
Check 5V, 33V of TU100
Re-soldering or
Change the defect part
Fail
Fail
Fail
Fail
Check short of main B/D
or Change IC500
Fail
Check the input
source
Check short of main B/D
& JACK B/D
Check R217 Level
(Video1, RF : HIGH 3.3V)
Check the input/output
of IC200
Check the input/output
of IC300 (Comb Filter)
Pass
Check the input/output
of IC500
Ref.4
Ref.5
ITU656 Clock Out :
IC200(VCTi) #83
Ref.5
Y separated OUTPUT
IC300(Comb Filter) #96
Ref.4
Pass
Check short of main B/D or
change the defect part
Fail
