Sharp LC-52LE920UN - Page 54

LC-52LE920UN/LC-60LE920UN
|
No
audio
(2)
j
|
[PC
analog
audio input]
INPUT-3_No
audio.
1 |
[HDMI
analog
audio
input]
INPUT-4_No
audio.
1
|
Is INPUT-3 selected
on
the
input
select
menu
screen?
| |
Is INPUT-4 selected
on
the
input
select
menu
screen?
|
'
NO
+
NO
1
| Refer
to
“:
No external
input
video
[INPUT-3]’.
|
|
Refer
to
“:
No external
input video [INPUT-4]’.
|
YES
YES
Is
the
audio output
selected
for “VARIABLE”
on
the
menu
screen?
|
Is
the audio
output
selected
for
“VARIABLE”
on
the
menu
screen? |
‘
NO
+
NO
’
|
Set
the
audio
output
to
“FIXED”.
|
| Set
the
audio output
to
“FIXED”.
|
YES
YES
Is
the “PC
input”
- “Audio
select for
“Video
+
Audio”
on
the
menu
Is
the “PC
input”
- “Audio
select”
selected
for “HDMI
+
Analog” on
screen?
the
menu
screen?
'
NO
'
NO
Set
the
“PC
input”
-
“Analog
select”
to
“Video
+
Set
the
“PC
input”
- “Analog
select”
to
“HDMI
+
Audio”.
Analog.
Vv
YES
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)?
y NO
Check the line between 1C3302 and IC2701,
and their peripheral circuits.
YES
e About the L/R Speakers. NO Check 1C2701 and its peripheral circuits. (X2701, etc.).
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. NO e About the L/R Speakers.
Is the audio output from 1C2703 as specified? Check 1C2703 and its peripheral circuits.
e About the Subwoofer Speaker. e About the Subwoofer Speaker.
IS the audio output from 1C2702 as specified? Check 1C2702 and its peripheral circuits.
+ 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.