XG-C40XE (serv.man5). Service Manual - Part 2 - Troubleshooting (32-47) - Sharp Projector Service Manual (repair manual). Page 13

Read Sharp XG-C40XE (serv.man5) Service Manual online

44
XG-C40XU/XE
Yes
Yes
No
No
Checking the S-
XGA's red video 
circuit and its 
peripheral circuits
Checking the VGA's 
red video circuit and 
its peripheral  
circuits
Is there signal at pin (139) of IC8606?
Terminal PWB,C8616 defective.
Is there signal at pin (139) of IC8606?
Is there signal at pin (144) of IC8606?
Is there signal at pin (Y11)(TL8612) of 
IC8609?
1
1
Yes
Yes
Yes
Yes
No
No
No
Yes
No
Check the video 
system's red video 
circuit and its 
peripheral circuits
Yes
Yes
No
No
Yes
No
No
 Are there signals at pins (21) thru (31) 
as well as (34) thru (41), except for 
GND, of P8606?
Are there signals at TL8044 and 
TL8046?
Are there signals at pins (1) thru 
(10)  of IC8051?
IC8051 or its peripheral circuit or output 
PWB faulty.
IC8025 or its peripheral circuit faulty.
IC8606 or its peripheral circuit faulty.
IC8020 or its peripheral circuit faulty.
IC8029 or its peripheral circuit faulty.
IC8609 or its peripheral circuit faulty.
C8702 or its peripheral circuit or signal 
PWB faulty.
Are there signals at pins (21) thru (31) 
as well as (34) thru (41), except for 
GND, of P8606?
Are there signals at pins (112) thru 
(119)  of IC8020?
Are there signals at pins (69) thru (73) 
and (189) thru (192) of IC8020?
TROUBLE SHOOTING TABLE FOR PC I/F UNIT-5
Page of 16
Display

Click on the first or last page to see other XG-C40XE (serv.man5) service manuals if exist.