Toshiba 15DL15, Service Manual

Page: 34 / 76

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No Raster on Component
,D2 Signal
Check input source cable
and jack
Check short circuits of Main B/D
& JACK B/D
Check short circuits of
Main B/D
Re-soldering or
Change IC701
Repeat Process A
Fail
Check
R217 of Main B/D
1.Component Jack (high)
2.D-JACK (LOW)
Check the Input/
Output of IC701 of Main B/D
Check the input / output
IC500 of Main B/D
Check R715 of Main
Level(high 3.3V)
Fail
Fail
Fail
Pass
Pass
Pass
Pass
Pass
Re-soldering or
Change IC500
Ref.2
Ref.3
Component Y signal Input :
IC701(Swiching IC), #3
Ref.2
Component Y signal Input :
IC500(Scaler IC), #147
Ref.3
Process B