E-14
2012 March 7 
HT-SL72 / HT-SL77 ZB271
Many potential problems can be resolved by the owner
without calling a service technician.
If something is wrong with this product, check the following
before calling your authorized SHARP dealer or service
center.
* For HT-SL77
Sudden temperature changes, storage or operation in an
extremely humid environment may cause condensation
inside the cabinet. Condensation can cause the unit to
malfunction. If this happens, leave the power on until
normal playback is possible (about 1 hour). 
When this product is subject to strong external interference
(mechanical shock, excessive static electricity, abnormal
supply voltage due to lightning, etc.) or if it is operated
incorrectly, it may malfunction.
If the unit is not restored in the previous operation, 
unplug and plug in the unit again 
or
unplug all component connected and plug in again.
During the Amplifier power on position (BLUE indicator 
light up), press the PAIRING button for more than 10 
seconds.
Note:
This operation will restore the DIGITAL (HDMI) function
volume to the default setting.
Periodically wipe the cabinet with a soft cloth.
Caution:
● Do not use chemicals for cleaning (gasoline, paint
thinner, etc.). It may damage the cabinet finish.
● Do not apply oil to the inside of each component. It may
cause malfunctions.
Symptom Possible cause
● No sound is heard 
from Sound Bar/
Subwoofer.
● Is the TV input signal 
(selection) set properly?
● Is HDMI compliant 
equipment being used?*
● Is the HDMI cable 
connected correctly?*
● Is the HDMI cable of the 
correct type being used? 
(with ARC)*
● Does the sound input 
support PCM signal?*
● Do not connect or 
disconnect an HDMI cable 
while power is on. This 
may lead to operation 
problems.*
● Check if the Subwoofer 
already turn on.
● Manually re-link the 
Amplifier and Subwoofer 
(refer page 13).
● Noise is heard 
during playback.
● Move the speaker away 
from any computers or 
mobile phones.
● The power is not 
turned on.
● Is the unit unplugged? 
● The protection circuit may 
be activated. Unplug and 
plug in the power cord 
again after 5 minutes or 
more.
● Volume cannot be 
controlled via TV.*
● Check if the HDMI CEC is 
enabled. 
● 3D images not 
displayed on the TV.*
● Depending on the TV and 
Video component, 3D 
images may not be 
displayed.
Check the operation 
manual of the respective 
component.
● Background noise 
appears when 
connecting with 
headphone output of 
TV-Terminal.
● Please change to HDMI/
ARC or RCA-Output 
terminal from TV-Set. This 
effect may occur 
depending on TV-Brand, 
model and age, and it is 
not the Sound Bar 
problem.
Symptom Possible cause
● Wireless connection 
cannot be 
established.
● Check the distance 
between the Amplifier and 
Subwoofer (less than 32 
feet (10m)).
● Make sure there is no other 
wireless devices near the 
unit.
● Make sure there is no 
obstacles (especially 
metal) blocking between 
the Amplifier and 
Subwoofer.
● Manually re-link the 
Amplifier and Subwoofer 
(refer page 13).
● If the Amplifier is wall 
mounted behind the TV, 
make sure the distance 
between the TV and 
Amplifier are not less than 
8" (20cm) to avoid wireless 
interruption.
If problem occurs during operation