Toshiba 15DL15, Service Manual

Page: 35 / 76

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No Raster on PC Signal
Check input source cable
and Jack
Check short circuits of
main B/D
Re-soldering or
Change IC701 of Main B/D
Repeat Process A
Check the input/
output of IC701 of Main B/D
Check the Input / Output
IC500 of Main B/D
Check R715 of Main B/D
Level(LOW 0V)
Fail
Fail
Fail
Pass
Pass
Pass
Pass
Re-soldering or
Change IC500
Ref.4/4-1
Ref.5/5-1
V Sync Input :
IC500 (Scaler IC), #182
Ref.5-1
H Sync Input :
IC500 (Scaler IC), #181
Ref.5
V Sync Input :
IC701 (Swiching IC), #13
Ref.4-1
H Sync Input :
IC701 (Swiching IC), #23
Ref.4