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No Raster on PC signal
Check input source cable
and jack
Re-soldering or Change
the defect part of
IC501, X500, IC701
Check short circuits of
Main B/D
Re-soldering or
Change IC701
Repeat Process A
Check Level(High) of R724
Fail
Fail
Fail
Pass
Pass
Pass
Pass
Check the input/output
of IC701
Check the input/output
of IC501
Ref.8
Component Y signal Iutput :
IC501(Scaler IC) #147
Ref.8
V_sync Input :
IC701(Switching IC) #13
Ref.7-2
H_sync Input :
IC701(Switching IC) #23
Ref.7-1
Component Y signal Iutput :
IC701(Switching IC), #3
Ref.7
Ref.7/7-1/7-2
