XG-PH70X/XG-PH70X-N (1st. Edition)
4 – 16
DVI digital input check
Feed the DVI digital signal to INPUT3.
Select INPUT3.
Is a picture displayed?
NO
YES
Is a picture distorted?
NO
YES
Are colors normal?
NO
The periphery of IC8020 is defective.
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?
NO
The periphery of IC8020 is defective.
YES
Measure the clock at R8169.
Is the clock normal?
NO
The periphery of IC8020 is defective.
YES
The periphery of IC8025 is defective.
Содержание XG-PH70X - XGA DLP Projector
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Страница 132: ...XG PH70X XG PH70X N 1st Edition 8 50 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I PC I F Unit 5 Ref No 8xxx IC20 IC8020 ...
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Страница 134: ...XG PH70X XG PH70X N 1st Edition 8 52 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I PC I F Unit 6 Ref No 8xxx IC25A IC8025A ...
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Страница 140: ...XG PH70X XG PH70X N 1st Edition 8 58 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I PC I F Unit 9 Ref No 8xxx R260 R8260 NC ...
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