Read Sharp XG-NV6XE (serv.man4) Service Manual online
45
XG-NV6XE
TROUBLE SHOOTING TABLE FOR PC I/F UNIT-4
C
Yes
Yes
No
No
C
Yes
Yes
No
No
Yes
Yes
Yes
No
No
Yes
Are there signals at TL45 and TL47?
Yes
Yes
No
No
Yes
No
Are there signals at pins (179) thru
(187) of IC8020?
(187) of IC8020?
IC8020 or its peripheral circuit faulty.
Yes
Yes
No
Are there signals at pins (5) and (6) of
P8405 connector?
P8405 connector?
Are there signals at pins (11) thru (20)
of IC8051?
of IC8051?
IC8051 or its peripheral circuit faulty.
No
IC8029 or its perpheral circuit faulty.
No
IC8025 or its peripheral circuit faulty.
P8405 connector or output PWB
faulty.
faulty.
Checking the
SXGA's green video
circuit and its
peripheral circuits
SXGA's green video
circuit and its
peripheral circuits
Checking the VGA's
green video circuit
and its peripheral
circuits
green video circuit
and its peripheral
circuits
Yes
No
Are there signals at pins (25) thru (32)
of P8404 connector?
of P8404 connector?
Check the video
system's green
video circuit and its
peripheral circuits
system's green
video circuit and its
peripheral circuits
Is there signal at pin (8) of IC8004 (or
pin (6) of IC8066)?
pin (6) of IC8066)?
Is there signal at pin (8) of IC8004 (or
pin (6) of IC8066)?
pin (6) of IC8066)?
Output PWB faulty.
Is there signal at the base of Q8007?
Is there signal at the base of Q8007?
IC8004 (or IC8066) or its peripheral
circuit faulty.
circuit faulty.
Is there signal at pin (6) of IC8010?
Is there signal at pin (6) of IC8010?
Q8006 and Q8007 or there peripheral
circuit faulty.
circuit faulty.
Are there signals at pins (21) thru (27)
and (33) thru (40) of IC8010?
and (33) thru (40) of IC8010?
Are there signals at pins (21) thru (27)
and (33) thru (40) of IC8010?
and (33) thru (40) of IC8010?
Are there signals at pins (165) thru
(177) of IC8020?
(177) of IC8020?
IC8010 or its peripheral circuit faulty.
Click on the first or last page to see other XG-NV6XE (serv.man4) service manuals if exist.