Read Sharp LC-15E1E (serv.man3) Service Manual online
LC-13E1E
LC-15E1E
LC-15E1E
17
TROUBLE SHOOTING TABLE
(Continued)
No picture (2)
Check all the settings microprocessor
’s adjust process menu.
Is input at pin
(74) of IC801
normal?
Check the AV2
line and its
peripheral parts.
Check the W9,
SY-line, SC-line
and their
peripheral parts.
No
No VIDEO 1
output
Is input at pin (1)
of IC402 and pin
(71) of IC801
normal?
No
No S-VIDEO
output
Check IC1203
and its
peripheral parts.
No
No
Yes
Yes
Yes
No TELETEXT
output
Yes
Is input at pins (2),
(5), (11), and (14)
of IC1203 normal?
Is input at pins (3),
(4) and (5) of
SC1602 normal?
Is output at pins (1)
and (7) of IC1619 and
pin (1) of IC1620
normal?
No
Check connection
cable
Check the R, G
and B line.
No
Check IC1619,
IC1620 and their
peripheral parts.
Is output at pins
(57)~(59) of IC1601
normal?
No
Yes
Check V2V0 line
and its peripheral
parts.
Is input at pin (21) of
IC1601 normal?
Check IC1601 and its
peripheral parts.
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