Sharp XG-P25X Service Anleitung Seite 44

XG-P25X
TROUBLE SHOOTING TABLE FOR PC I/F UNIT
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Check the RGB input.
Check the component
Checking the PC PWB
YES
Is the user menu
displayed onscreen?
NO
Check the onscreen
display.
input signals.
Check the video input
signals.
Check the DVI input
signals.
End.
Check the basic signal flow. The
component signals and video signals flow
in the same way from CVIC IC to DAC
OUT. So there is no need to check the
lines after the CVIC IC.
The component input signals flow through
the same circuitry as for the RGB input
signals. Check the SOG (Sync On Green)
circuit and the color correction circuit.
The video input signals flow into the CVIC
IC through a different route from the RGB
input signals. Therefore check the video-
signal DAC and PLL IC.
Check the DVI digital as well as analog
input signals.
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