Sharp XG-PH50X Serviceanleitung Seite 69

DVI digital input check
Feed the DVI digital signal to
INPUT3.
Select INPUT3.
Is a picture displayed?
YES
Is a picture distorted?
YES
Are colors normal?
YES
The DVI digital input is
normal.
Measure the vertical sync
signal at the pin 13 of IC8012
and the horizontal sync
signal at the pin 3 of IC8012,
respectively.
Are the sync signals normal?
YES
Measure the clock at R8169.
Is the clock normal?
YES
The periphery of IC8025 is
defective.
NO
NO
NO
The periphery of IC8020 is
defective.
NO
NO
The periphery of IC8020 is
defective.
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XG-PH50X
XG-PH50X-NL