XG-V10XE (serv.man9). Page 20-59 - Sharp Projector Service Manual (repair manual). Page 37

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56
XG-V10XE
TROUBLE SHOOTING TABLE FOR PC I/F UNIT-10
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Checking the VIDEO sync signal
Measure the TL8135 output on 
oscilloscope screen.
Is the vertical sync signal as 
specified?
Measure the TL8132 output on 
oscilloscope screen.
Is the horizontal sync signal as 
specified?
Are there horizontal and 
vertical sync signals at TL8130 
and TL8131?
Check the input signal settings.
Input PC board defective.
IC8302 or its peripherals 
defective.
Is the pulse output at pin (4) of 
IC8328 in the same timing as 
the horizontal signal?
CVIC_IC or its peripherals 
defective.
Is the pulse output at pin (5) of 
IC8328 in the same timing as 
the pulse at pin (4)?
CVIC_IC or its peripherals 
defective.
Is there 69-MHz or so clock at 
FL8102?
No problem with the VIDEO 
sync signal and clock.
IC8328 (PLL_IC) or its 
peripherals defective.
» 
Checking the VIDEO vertical sync signal.
» 
Checking the VIDEO 
    vertical sync signal
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