Read Sharp XG-NV5XE (serv.man40) Service Manual online
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XG-NV5XE
XG-NV5XM
XG-NV5XM
TROUBLE SHOOTING TABLE FOR PC I/F UNIT-6
Checking the OSD circuit and its peripheral circuits
Yes
Display OSD on the screen.
Yes
No
Are there signals at pins (56), (58),
(71) and (72) of IC8048?
(71) and (72) of IC8048?
IC8029 or its peripheral circuit faulty.
Yes
No
Are there signals at pins (34), (35)
and (36) of IC8046?
and (36) of IC8046?
IC8048 or its peripheral circuit faulty.
Yes
No
Are there signals at pins (16) thru
(18) of IC8046?
(18) of IC8046?
IC8048 or its peripheral circuit faulty.
IC8036 or its peripheral circuit faulty.
Yes
No
Using remote controller, is there
signal at pin (48) of IC8033?
signal at pin (48) of IC8033?
IC8001 circuit faulty.
Yes
No
Using remote controller, is there
signal at pin (45) of IC8033?
signal at pin (45) of IC8033?
IC8033 circuit faulty.
Yes
No
IC8033 circuit faulty.
LCP-side circuit faulty.
Checking the remote control
Yes
No
Run the remote control. Are there
signals at pin (59) of CON3 (P8502)
connector?
signals at pin (59) of CON3 (P8502)
connector?
LCD circuitry faulty.
Using remote controller, is there
signal at pin (60) of CON3 (P8502)
connector?
signal at pin (60) of CON3 (P8502)
connector?
