Sharp XG-PH70X Service Manual page 58

XG-PH70X/XG-PH70X-N (1st. Edition)
DVI digital input check
Feed the DVI digital signal to INPUT3.
Select INPUT3.
Is a picture displayed?
Is a picture distorted?
Are colors normal?
The DVI digital input is normal.
NO
NO
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?
Measure the clock at R8169.
Is the clock normal?
The periphery of IC8025 is defective.
YES
YES
YES
YES
YES
NO The periphery of IC8020 is defective.
NO The periphery of IC8020 is defective.
NO The periphery of IC8020 is defective.
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