Xerox XL-795D Service Manual - Page 15

Signal Cable

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No display (White) Check the main NO board 5V ? Repair 5V Circuit YES +3.3V ? YES Check the main board 3.3V Regulator ? YES H/V Input Signal ? NO Check H/V Signal NO Check 3.3V Regulator NO Repair 3.3V Circuit YES Change Scaler IC Display ? YES OK ! NO Change Signal Cable

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15
NO
YES
NO
YES
NO
YES
YES
NO
NO
YES
No display
(White)
Check the main
board
5V
?
+3.3V ?
H/V Input
Signal ?
Check the main
board
3.3V
Regulator
?
Change
Scaler IC
Check
H/V Signal
Display ?
OK !
Change
Signal Cable
Repair
5V Circuit
Check
3.3V
Regulator
Repair
3.3V Circuit