XG-P10XE (serv.man2). Service Manual text - Page 1-47 - Sharp Projector Service Manual (repair manual). Page 41

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42
XG-P10XE
Checking the clock circuit and its peripheral circuits
Yes
Yes
Yes
Yes
Yes
No
Is X8001 (6MHz) oscillating?
X8001 or its peripheral part faulty.
No
No
Is X8004 (22.165MHz) oscillating?
X8004 or its peripheral part faulty.
No
Is X8005 (16.25MHz) oscillating?
X8005 or its peripheral part faulty.
Is X8003 (1.84MHz) oscillating?
No
No
Yes
No
Yes
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
No
Yes
No
Yes
Does pin (162) of IC8001 function?
X8003 or its peripheral part faulty.
IC8001 or its peripheral circuit faulty.
Are there signals at pins (100) and 
(101) of IC8606?
IC8004 or its peripheral parts 
defective.
Is there signal at TL8616?
IC8025 or its peripheral parts 
defective.
Is there signal at TL8615?
IC8609 or its peripheral parts 
defective.
Go to "Checking the Sync Signal 
Circuit and Its Peripherals."
Is the sync signal of split type?
Are there signals at TP8004 and 
TP8005?
Output PWB defective.
No
Is the sync signal of Sync On Green 
type?
Is there signal at TL8606?
IC8606 or its peripheral parts 
defective.
Does the input have a below-XGA 
resolution or is it video signal?
Are there signals at TL8023, 
TL8024 and TL8025?
Are there signals at TL8034 and 
TL8035?
IC8025 or its peripheral parts 
defective.
Are there signals at TL8043, TL8041 
and TL8042?
IC8020 or its peripheral parts 
defective.
E
E
Are there signals at TL8057 and 
TL8058?
IC8029 or its peripheral parts 
defective.
Are there signals at pins (19), (20), 
(21), (32), (36) and (40) of P8405?
IC8609 or its peripheral parts 
defective.
Go to "Checking the PLL Circuit and 
its Peripherals."
TROUBLE SHOOTING TABLE FOR PC I/F UNIT-1

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