Toshiba TheaterWide 23HL85, Service Manual

Page: 34 / 57

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Check input source cable
and jack
Re-soldering or Change
IC701
Check short circuits of
Main B/D
Check the Input / Output
IC450
Fail
Fail Fail
Check the input/output
of IC701
Check level(0W)
of R724
Check the input/output
of IC501
Pass
Pass
Pass
Re- soldering or Change
The defect part of IC450,
IC451
Fail
Re- soldering or Change
The defect part of IC501,
X500, IC701
Pass
Ref.3
Component Y signal Iutput :
IC701(Switching IC), #3
Ref.2
H_sync Input :
IC701(Switching IC) #23
Ref.2-1
V_sync Input :
IC701(Switching IC) #13
Ref.2-2
Component Y signal Iutput :
IC501(Scaler IC) #147
Ref.3
Process B
Ref.2/2-1/2-2