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Sharp LC-52LE920UN - Page 56

Sharp LC-52LE920UN
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LC-52LE920UN/LC-60LE920UN
|
No
audio
(4)
j
INPUT-4
No
audio
INPUT-5
No
audio
INPUT-6
No
audio
INPUT-7
No
audio
‘
[INPUT-4
input]
Is
INPUT-4
selected
on
the
input
select
menu
screen?
[INPUT-5
input]
Is
INPUT-5
selected
on
the
input
select
menu
screen?
[INPUT-6
input]
Is
INPUT-6
selected
on
the
input
select
menu
screen?
[INPUT-7
input]
Is
INPUT-7
selected
on
the
input
select
menu
screen?
4
NO
|
Refer
to
“:
No
external
input
video
[INPUT-4/5/6/7]’.
YES
[INPUT-4
input]
If
no
video
appears,
refer
to
“No
external
input
video
(HDMI)
[INPUT-4]”.
[INPUT-5
input]
If
no
video
appears,
refer
to
“No
external
input
video
(HDMI)
[INPUT-5]”.
[INPUT-6
input]
If
no
video
appears,
refer
to
“No
external
input
video
(HDMI)
[INPUT-6]”.
[INPUT-7
input]
If
no
video
appears,
refer
to
“No
external
input
video
(HDMI)
[INPUT-7]”.
t
Is
the
audio
output
selected
for
“VARIABLE”
on
the
menu
screen?
'
NO
|
Set
the
audio
output
to
“FIXED”.
YES
Does
the
digital
audio
signal
come
from
pins
(F28/F30/G28)
(AUBCK/AULRCK/AOSDATAQO)
of
1C3302
(CPU)
to
pin
(8/9/7)
(SP_BCLK/SP_LRCLK/SP_DATA)
of
1C2701
(Audio
DSP)?
'
NO
Check
the
line
between
1C3302
and
1C2701,
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
IC2703
(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
1C2702
(AMP
for
SW)?
Check
IC2701
and
its
peripheral
circuits.
(X2701,
etc.).
+
YES
e
About
the
L/R
Speakers.
e
About
the
L/R
Speakers.
Is
the
audio
output
from
1C2703
as
specified?
Check
IC2703
and
its
peripheral
circuits.
e
About
the
Subwoofer
Speaker.
e
About
the
Subwoofer
Speaker.
IS
the
audio
output
from
1C2702
as
specified?
Check
IC2702
and
its
peripheral
circuits.
‘
Yes
e
About
the
L/R
Speakers.
Check
the
connector (P2701)
L/R
speakers
and
their
periph-
eral
circuits.
e
About
the
Subwoofer
Speaker.
Check
the
connector
(P2702),
subwoofer
speaker
and
their
peripheral.
6-10

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