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Sharp LC-52LE920UN User Manual

Sharp LC-52LE920UN
80 pages
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LC-52LE920UN/LC-60LE920UN
INPUT-1
No
audio.
|
‘
|
Is
INPUT-1
selected
on
the
input
select
menu
screen?
|
'
NO
|
Refer
to
“:
No
external
input
video
[INPUT-1]’.
|
YES
Is
the
audio
output
selected
for
“VARIABLE”
on
the
menu
screen?
|
‘
NO
|
Set
the
audio
output
to
“FIXED”.
|
YES
Does
the
audio
signal
come
from
pins
(4) (L)
and
(3)
(R)
of
input
terminal
(J507)
to
pins
(U29)(L)
and
(U28)
(R)
of
IC3302
(CPU)?
'
NO
|
Check
the
line
between
J507
and
1C3302.
|
YES
No
audio
(1)
INPUT-2
No
audio.
‘
|
Is
INPUT-2
selected
on the
input
select
menu
screen?
¥
No
|
Refer
to
“:
No
external
input
video
[INPUT-2]’.
YES
Is
the
audio
output
selected
for
“VARIABLE”
on the
menu
screen?
+
No
|
Set
the
audio
output
to
“FIXED”.
YES
Does
the
audio
signal
come
from
pins
(4) (L)
and
(1)
(R)
of
input
terminal
(J505)
to
pins
(R28)
(L)
and
(T26)
(R)
of
1C3302
(CPU)?
+
No
|
Check
the
line
between
J505
and
1C3302.
YES
Does
the
digital
audio
signal
come
from
pins
(F28/F30/G28)
(AUBCK/AULRCK/AOSDATAQO)
of
IC3302
(CPU)
to
pin
(8/9/7)
(SP_BCLK/SP_LRCLK/SP_DATA)
of
1C2701
(Audio
DSP)?
+
NO
Check
the
line
between
1C3302
and
IC2701,
and
their
peripheral
circuits.
YES
e
About
the
L/R
Speakers.
Does
the
digital
audio
signal
come
from
pins
(47/43/44/45)
of
IC2701
(Audio
DSP)
to
pin
(5/8/7/6)
of
1C2703
(AMP
for
L/R)?
e
About
the
Subwoofer
speaker.
Does
the
digital
audio
signal
come
from
pins
(47/43/44/46)
of
IC2701
(Audio
DSP)
to
pin
(5/8/7/6)
of
IC2702
(AMP
for
SW)?
4
YES
e
About
the
L/R
Speakers.
Is
the
audio
output
from
1C2703
as
specified?
e
About
the
Subwoofer
Speaker.
IS
the
audio
output
from
1C2702
as
specified?
t
Yes
e
About
the
L/R
Speakers.
Check
the
connector
(P2701)
L/R
speakers
and
their
peripheral
cir-
cuits.
e
About
the
Subwoofer
Speaker.
Check
the
connector
(P2702),
subwoofer
speaker
and
their
periph-
eral.
NO
NO
Check
IC2701
and
its
peripheral
circuits.
(X2701,
etc.).
e
About
the
L/R
Speakers.
Check
IC2703
and
its
peripheral
circuits.
e
About
the
Subwoofer
Speaker.
Check
IC2702
and
its
peripheral
circuits.

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Sharp LC-52LE920UN Specifications

General IconGeneral
BrandSharp
ModelLC-52LE920UN
CategoryTV
LanguageEnglish

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