25
LC-15B1U
TROUBLE SHOOTING TABLE
(Continued)
No picture and sound
No color
No TV
color
No S-VIDEO color
Yes
No
Do F3701 function?
Chec
k all the settings on the microprocessor
’s adjust process men
u.
No
Are secondar
y outputs
(+38V
, +9V
, +5V
, -8V
, -20V)
of
T3701 as specified?
Yes
Are the oscillation w
a
v
e
fo
rm
at T3701
’s pr
imar
y side as
specified?
Yes
No
Disconnect F3701.
Is the load side shor
t-
circuited?
Yes
No
Is an
y of
T3701
’s pr
imar
y
side
, Q3700 and S4701 shor
t-
circuited?
Chec
k J3701, its per
ipher
al
par
ts and connection cab
le
.
Replace F3701.
Chec
k S4701 and
connection cab
le
.
Chec
k the secondar
y-side
load of
T3701.
Fluorescent lamp
Yes
No
Does F6500 and F6501
function?
Yes
No
Is Pin (34) of IC1201 at
“H
”?
Yes
No
Are the oscillation w
a
v
e
fo
rms
at the pr
imar
y side of
T6500
and
T6502 as specified?
Yes
Replace F6500 and F6501.
No
Is input at Pin (71) of IC801
as specified?
Chec
k SC3405, SC line and
per
ipher
al par
ts
.
Yes
Chec
k the line
, IC1201 and
its per
ipher
al par
ts
.
Chec
k D6500, Q6500~Q6505,
T6500~T6503 and their
per
ipher
al par
ts
.
Replace the fluorescent lamp
and chec
k the oscillation
w
a
v
e
fo
rm
again.
No VIDEO
color
Chec
k all the settings on the microprocessor
’s adjust process men
u.
No COMPONENT color
No
Is input at Pins (4) and (6) of
IC801 as specified?
Chec
k J3404, PB line
, PR line
and per
ipher
al par
ts
.
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 ...
