LC-37GA3E (serv.man4) - Sharp TV Service Manual (repair manual). Page 5

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9
LC-32GA3E
LC-37GA3E
Rear vie
w
Using e
xternal equipment
Connecting e
xternal speaker
s
Make sur
e to connect the speaker ter
minal and
cable polarity (
) pr
operly
.
The speaker ter
minals have plus (
) and minus (
)
polarity
.
Plus is r
ed and minus is black.
The cables ar
e also divided into plus and minus.
When connecting the left/right speakers, be sur
e to
connect the plus/minus ter
minals with the cor
rect cables.
NO
TE
Unplug the AC cor
d fr
om the AC outlet befor
e installing
the speakers.
CA
UTION
Make sur
e exter
nal speakers have 4 ohm and 10 watt
specifications.
Connect the plus/minus ter
minals with the corr
ect cables.
Incorr
ect connection may cause a shor
t.
Ho
w to connect the
speaker cab
le
Pull up the
lid.
Inser
t the
edge of the
cab
le
.
1
2
3
Put the lid
bac
k
do
wn.
Make sur
e to disconnect the connected speaker
cables in advance when connecting exter
nal
speakers.
External A
udio Bypass
Exter
nal Audio Bypass automatically optimises the
audio quality to suit inter
nal (supplied) speaker
.
Pr
ess 
MENU
 and the MENU scr
een displays.
Pr
ess 
\
/|
 to select “Setup”.
1
2
Pr
ess 
\
/|
 to select “Y
es” or “No”, and then
pr
ess 
OK
.
5
Pr
ess 
'
/"
 to select “Speaker Setup”, and
then pr
ess 
OK
.
3
Pr
ess 
'
/"
 to select “Exter
nal Audio
Bypass”, and then pr
ess 
OK
.
4
NO
TE
Exter
nal Audio Bypass is gr
eyed out when Dolby V
ir
tual
is set to “On”.
When Dolby V
ir
tual is on, Exter
nal Audio Bypass
automatically sets to “Y
es”.
Description
Sets the optimum audio for the inter
nal
(supplied) speaker
.
When you ar
e using your own speakers,
output the original sound.
Selected item
No
Ye
s
Appendix
No power
.
Unit cannot be operated.
Remote contr
ol unit does not
operate.
Pictur
e is cut of
f.
Strange colour
, light colour
, or
dark, or colour misalignment.
Power is suddenly tur
ned of
f.
No pictur
e.
No sound.
Pr
oblem
P
ossib
le Solution
Check if you pr
essed 
 on the r
emote contr
ol unit.
If the indicator on the Display lights up r
ed, pr
ess 
.
Is the AC cor
d disconnected?
Has the power been tur
ned on?
Exter
nal influences such as lightning, static electricity
, etc., may cause  impr
oper
operation. In this case, operate the unit after first turning the power of
f, or
unplugging the AC cor
d and r
e-plugging it in after 1 or 2 minutes.
A
re
 batteries inser
ted with polarity (
,
) aligned?
A
re
 batteries wor
n out? (Replace with new batteries.)
A
re
 you using it under str
ong or fluor
escent lighting?
Is a fluor
escent light illuminated to r
emote contr
ol sensor?
Is the image position corr
ect?
A
re
 scr
een mode adjustments such as pictur
e size made corr
ectly?
Adjust the pictur
e tone.
Is the r
oom too bright? The pictur
e may look dark in a r
oom that is too bright.
Check the colour system setting.
Check the input signal setting.
The unit’
s inter
nal temperatur
e has incr
eased.
Remove any objects blocking vent or clean.
Check the power contr
ol setting.
Is sleep timer set?
Is connection to other components cor
rect?
Has input signal setup been done cor
rectly after connection?
Is the corr
ect input selected?
Is a non-compatible signal being input?
Is pictur
e adjustment corr
ect?
Is the antenna connected pr
operly?
Is “On” selected in “Audio Only”?
Is the volume too low?
Is “Audio Out (V
ariable)” selected in “INPUT 4”?
Is the speaker connected pr
operly?
Is “On” selected in “Centr
e Channel Input”?
Make sur
e that headphones ar
e not connected.
T
roub
leshooting
Cautions regarding use in high and low temperature environments
When the unit is used in a low temperature space (e.g. room, office), the picture may leave trails or appear
slightly delayed. This is not a malfunction, and the unit will recover when the temperature returns to normal.
Do not leave the unit in a hot or cold location. Also, do not leave the unit in a location exposed to direct sunlight
or near a heater, as this may cause the cabinet to deform and the LCD panel to malfunction.
Storage temperature: –20
°
C to +60
°
C (–4
°
F to +140
°
F).
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