LC-15B1U
24
TROUBLE SHOOTING TABLE
(Continued)
No picture
at all
No
Are inputs
and outputs
of IC801 as
specified?
Chec
k all the settings on the microprocessor
’s adjust process men
u.
No picture
Chec
k IC402
and its
per
ipher
al
par
ts
.
No TV
output
Yes
No
Are v
o
ltages
at Pins (6),
(7) and (9) of
tuner as
specified?
Chec
k the
po
w
e
r line
.
Yes
No
Is output at
Pin (19) of
tuner as
specified?
Chec
k the
tuner and its
per
ipher
al
par
ts
.
No
Is input at Pin
(3) of IC402
as specified?
Chec
k the
line in
question.
Yes
Chec
k IC402
and its
per
ipher
al
par
ts
.
Yes
No
Are Pins (2)
and (4) of
IC402 at
“H
”
and
“L
”
respectiv
ely?
Are Pins (65)
and (66) of
IC2001 at
“H
”
and
“L
”
respectiv
ely?
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?
Chec
k J3404,
D
VD-Y line
,
PB line
, PR
line and
per
ipher
al
par
ts
.
Yes
Chec
k the
line in
question.
No VIDEO
1 or 2
output
Yes
No
Are inputs
and outputs
of IC402 as
specified?
Chec
k IC402
and its
per
ipher
al
par
ts
.
No
Is input at Pin
(73) of IC801
as specified?
Chec
k IC801,
A
V1 line and
their
per
ipher
al
par
ts
.
Yes
Chec
k Pin (88)
of IC2001, or
chec
k SSW
line
.
Yes
Yes
No
Is the test-
patter
n
of
LCD
controller
displa
y
ed?
Chec
k
IC1201, its
per
ipher
al
par
ts and
LCD panel.
No
Chec
k IC801
and its
per
ipher
al
par
ts
.
Is the test-
patter
n
of
video
decoder
displa
y
ed?
Содержание Aquos LC 15B1U
Страница 28: ...28 LC 15B1U A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 CHASSIS LAYOUT MAIN Unit Side A MAIN Unit Side B ...
Страница 29: ...29 LC 15B1U A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 INVERTER Unit TERMINAL Unit CONTROL Unit LED Unit ...
Страница 32: ...33 LC 15B1U A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 SCHEMATIC DIAGRAMS Ë CONTROL Unit Ë LED Unit ...
Страница 40: ...47 LC 15B1U M E M O ...
Страница 42: ...49 LC 15B1U A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 Ë MAIN Unit Side B Component Parts ...
Страница 45: ...54 LC 15B1U A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 Ë Terminal Unit Side A Component Parts ...
Страница 46: ...55 LC 15B1U A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 Ë Terminal Unit Side B Component Parts ...
