Sharp Aquos LC-13E1M, Руководство по обслуживанию, Страница: 20 / 108

20
LC-13E1H/M
LC-15E1H/M
TROUBLE SHOOTING TABLE
(Continued)
No picture at all
Yes
No
Are inputs and outputs of IC801 as specified?
Check all the settings on the microprocessor
’s adjust process menu.
No picture
Check IC801 and its peripheral parts.
Yes
No
Are inputs and outputs of IC1201 as specified?
Check IC1201 and its peripheral parts.
Check LCD panel voltage and waveform.
No TV
and
VIDEO 1 output
Yes
No
Are inputs and outputs of IC402 as specified?
Check IC402 and its peripheral parts.
No
Is input at pin (73) of IC801 as specified?
Check IC801, A
V1 line and
their peripheral parts.
No TV output
Yes
No
Are voltages at pins (6), (7) and (9) of tuner as specified?
Check the power line.
Yes
No
Is output at pin (19) of tuner as specified?
Check the tuner and its peripheral parts.
No
Is input at pin (3) of IC402 as specified?
Check the line in question.
Yes
Check IC402 and its peripheral parts.
Yes
No
Are pins (2) and (4) of IC402 at
“H
”
and
“L
”
respectively?
Are pins (65) and (66) of IC2001 at
“H
”
and
“L
”
respectively?
No VIDEO 1 or 2 output
Yes
No
Are inputs and outputs of IC402 as specified?
Check IC402 and its peripheral parts.
No
No S VIDEO output
No
Are inputs at pins (71) and (72) of IC801 as specified?
Chec
k
SC3405, SY line
, SC line
and per
ipher
al
par
ts
.
No COMPONENT output
No
Is input at pins (4), (5), (6) and (75) of IC801 as specified?
Check J3404, DVD-Y
line,
PB line, PR line and peripheral parts.
Yes
Check the line in question.
Is input at Pin (73) of IC801 as specified?
Chec
k IC801,
A
V1 line and
their per
ipher
al
par
ts
.