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Sharp LC-52LE920UN User Manual

Sharp LC-52LE920UN
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LC-52LE920UN/LC-60LE920UN
|
No
audio
(3)
|
|
No
audio
at
UHF/VHF
broadcast
signal
reception.
|
No
audio
at
digital
broadcast
signal
reception.
|
|
Is
TV selected
on
the
input
select
menu
screen?
|
Is
TV
selected
on
the
input
select
menu
screen?
|
4
NO
'
NO
Refer
to
“No
video
at
UHF/VHF
broadcast
signal
Refer
to
“No
video
at
digital
broadcast
signal
reception”. reception’.
v
YES
Is
the
audio
output
selected
for
“VARIABLE”
on
the
menu
screen?
¥
No
|
Set
the
audio
output
to
“FIXED”.
v
YES
Is
there
the
SIF
signal
output
at
pin
(14)
of
tuner
(TU1102)?
'
NO
Check
the
tuner
(TU1102)
and
its
peripheral
cir-
cuits.
(I2C
line:
TUNER_SCL/TUNER_SDA,
ete.)
v
YES
Does
the
SIF
signal
come
from
pin
(14)
of
tuner
(TU1102)
to
pin
(AB27)
of
IC3302
(CPU)?
¥
No
Check
the
line
between
TU1102
and
1C3302,
and
their
peripheral
circuits
(Q1101,
Q1102,
etc.).
Y
YES
YES
If
no
video
appears,
refer
to
“No
video
at
digital
broadcast
signal
reception’.
‘
|
Is
the
audio
output
selected
for
“VARIABLE”
on the
menu
screen?
|
'
NO
|
Set
the
audio
output
to
“FIXED”.
|
v
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
1IC2701,
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)?
+
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?
+
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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