Read Sharp LC-22SV2E (serv.man8) Service Manual online
22
LC-22SV2E
TROUBLE SHOOTING TABLE
(Continued)
No picture
Check all the settings microprocessor's adjust process menu.
Is input at pin
(74) of IC801
normal?
Check the AV1
line (SCART
INPUT) and
their peripheral
parts.
Check the
SY-line, SC-line
and their
peripheral parts.
No
No VIDEO 1
output
Is input at pins
(71) and (72) of
IC801 normal?
No
No S-VIDEO
(VIDEO 1)
output
Is input at pin
(70) of IC801
normal?
Check the
V2VO line and
their
peripheral parts.
No
No line
output
Is input at pins
(96)~(107),
(110)~(121)
and (132)~(143)
of IC4101
normal?
Is output at pins
(57)~(60) of
IC1601
normal?
Check IC4101
and its
peripheral parts.
Check the its
line. (V2V0)
Check the its
line.
Is output at pin
(21) of IC1601
normal?
No
Yes
Yes
No
No
No TELETEXT
output
Check IC1601
and its
peripheral parts.
Yes
Click on the first or last page to see other LC-22SV2E (serv.man8) service manuals if exist.