Toshiba 15VL56B Service Manual page 35

No Raster on Video Signal
(Video1, Video2)
Repeat Process A
Pass
Check the Input source
Pass
Ref.2
Check the Input/Output
of IC200
Pass
Check the Input/Output
of IC500
Pass
Check cable and jack
ITU656 Clock Out :
Ref.2
IC200(VCTI), #83
No Raster on TV(RF)
Signal
Pass
Check the Output of
TU100(Tuner)
Check short circuits of Main B/D
& Jack B/D
Fail
Check short circuits of Main B/D
or Change IC200
Fail
Check short circuits of Main B/D
or Change IC500
Fail
- 35 -
Check 5V, 33V of TU100
Re-soldering or
Fail
Change the defect part