DOWNLOAD Sharp XG-C50XE (serv.man11) Service Manual ↓ Size: 36.8 KB | Pages: 19 in PDF or view online for FREE

Model
XG-C50XE (serv.man11)
Pages
19
Size
36.8 KB
Type
PDF
Document
Service Manual
Brand
Device
Projector / Troubleshooting
File
xg-c50xe-sm11.pdf
Date

Sharp XG-C50XE (serv.man11) Service Manual ▷ View online

44
XG-C50X
Yes
Yes
No
No
Checking of SOG Circuit
Measure the signal at pin (2) of 
IC8365 on the oscilloscope.
Is the composite sync signal 
reproduced in correct timing?
The SOG circuit is normal. End.
Measure the land of C8070 on the 
oscilloscope.
Is there the Y signal including sync 
signal?
Go to "Confirmation of Input Signal 
Setting".
The SOG sync separation circuit 
(INPUT PWB) is defective.
TROUBLE SHOOTING TABLE for PC I/F UNIT (Continued)
45
XG-C50X
TROUBLE SHOOTING TABLE for PC I/F UNIT (Continued)
Yes
No
Yes
No
No
Yes
Yes
Yes
No
No
Yes
No
5
6
5
Checking of Video Input
Feed the composite video signal 
to INPUT3.
Select INPUT3 using the set's key 
or the remote controller.
Does the picture appear?
Go to "Checking of Video 
Sync Signal".
Carry out the process 
adjustment.
Is there any disturbance in the 
picture?
Go to "Checking of Video 
Sync Signal".
Are the colors normal?
The video input is normal. End.
Is the video signal inputted to 
C8141?
Is there the signal at R8114?
Is there the signal at pin (3) 
of SC8002?
R8114 or its periphery is 
defective.
Q8002 or its periphery is 
defective.
The INPUT/OUTPUT PWB is 
defective.
46
XG-C50X
TROUBLE SHOOTING TABLE for PC I/F UNIT (Continued)
Yes
Yes
Yes
No
No
No
6
7
Check the clock signal of IC8015 
by FL8114.
Is the clock signal normal?
IC8015 is defective.
Go to "Checking of Video Sync 
Signal".
IC8025 or its periphery is defective.
Checking of Video Sync Signal
Measure the signal at pin (10) of 
IC8363 on the oscilloscope. 
(Checking of vertical sync signal)
Is the vertical sync signal normal?
Measure the signal at pin (6) of 
IC8363 on the oscilloscope. 
(Checking of horizontal sync signal)
Is the horizontal sync signal 
normal?
Go to "Confirmation of Input 
Signal Setting".
47
XG-C50X
TROUBLE SHOOTING TABLE for PC I/F UNIT (Continued)
Yes
Yes
No
No
7
Are the horizontal and vertical sync 
signals outputted at TL8130 and 
TL8131, respectively?
IC8015 or its periphery is 
defective.
Is there the specified clock 
(13.5 MHz) signal at FL8114?
IC8015 or its periphery is 
defective.
End.
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