Read Sharp XG-NV7XE (serv.man3) Service Manual online
38
XG-NV7XE
XG-NV7XM
TROUBLE SHOOTING TABLE FOR PC I/F UNIT-1
Checking the clock circuit and its peripheral circuits
Yes
Yes
Yes
Yes
Yes
Yes
No
Is X8001 (6MHz) oscillating?
X8001 or its peripheral part faulty.
No
No
Is X8002 (32.768kHz) oscillating?
X8002 or its peripheral part faulty.
No
Is X8004 (22.165MHz) oscillating?
X8004 or its peripheral part faulty.
No
Is X8005 (14.3185MHz) oscillating?
X8005 or its peripheral part faulty.
Is X8003 (1.84MHz) oscillating?
No
Does pin (162) of IC8001 function?
X8003 or its peripheral part faulty.
IC8001 or its peripheral circuit faulty.
Checking the panel link input.
Yes
No
Is the signal a panel link input?
No
Terminal unit defective.
Yes
Are there signals at pins (1) thru (8)
of connector P8003?
of connector P8003?
Yes
No
IC8298 defective.
Are there sync signals at pins (47)
and (48) of IC8298?
and (48) of IC8298?
B
B
Click on the first or last page to see other XG-NV7XE (serv.man3) service manuals if exist.