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

37
XG-C50X
TROUBLE SHOOTING TABLE for PC I/F UNIT (Continued)
Is the STEP signal as specified?
Select the STEP signal.
Is the onscreen display color 
normal?
No problem with the onscreen 
display.
In the process mode, make the 
LCD line adjustment.
Is the user menu displayed 
onscreen normally by the MENU 
key?
Is the signal compatible with the 
STEP signal outputted at TL106 
thru TL111?
Enter the process menu and select 
PATTERN. Then select the COLOR 
pattern.
No
Yes
No
Yes
Go to "Checking of GA4 and Its 
Periphery".
Yes
Rewrite the onscreen display data.
No
Checking of Onscreen Display
0
Rewrite the onscreen display data.
Yes
IC8025 is defective.
No
0
38
XG-C50X
TROUBLE SHOOTING TABLE for PC I/F UNIT (Continued)
Yes
No
Yes
1
2
3
No
Yes
Checking of RGB Input
Feed the sync separation type 
analog RGB signal to INPUT1.
Select INPUT1 using the set's key 
or the remote controller.
Does the picture appear?
Go to "Confirmation of Video 
Input".
Is the picture disturbed?
Go to "Checking of Sync Signal".
No
Go to "Checking of RGB Signal".
No
Yes
IC8013, IC8025 or their periphery 
is defective.
Do the three colors R, G and B 
appear?
Carry out the AUTOSYNC process.
Yes
Is the contour of picture clear?
No
Is there any disturbance in the 
vertical stripe pattern?
End
39
XG-C50X
TROUBLE SHOOTING TABLE for PC I/F UNIT (Continued)
IC8025 or IC8013 is defective.
Go to "Checking of Sync Signal".
Is there the signal at pin (55) of 
SC8002 (B-to-B connector)?
Somewhere in the signal route is 
defective. Check the capacitors 
and resistors between SC8002 
and IC8013.
Make "Confirmation of Input 
Signal Setting".
Is there the video signal at the land 
of C8070?
Yes
No
Yes
Confirmation of Video Input
The signal source or connector is 
defective.
End
Is the right item selected from input 
menu?
Are the connectors connected 
correctly?
Yes
No
Yes
Confirmation of Input Signal 
Setting
Select the right item.
2
No
Connect the connectors correctly.
1
No
40
XG-C50X
TROUBLE SHOOTING TABLE for PC I/F UNIT (Continued)
Is there the horizontal sync signal 
at TL8130?
Is there the vertical sync signal at 
TL8131?
Make confirmation of input signal 
setting.
R997, R996, SC8002 or their 
periphery is defective.
Is there the vertical sync signal at 
pin (11) of IC8363?
Is there the horizontal sync signal 
at pin (5) of IC8363?
Yes
Yes
Yes
Are both the vertical and horizontal 
sync signals in appropriate timing?
Yes
Is the signal generator 
(input source) appropriate?
No
R997, R996, SC8002 or their 
periphery is defective.
Yes
No
IC8363 is defective.
The sync signals are as specified. 
End of checking.
No
Yes
No
No
No
Checking of Sync Signal
Set the signal source 
appropriately.
2
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