Panasonic SC-HTB688 Operating Instructions Manual page 24

Sound
No sound (or image).
≥ Turn muting off. ( 20)
≥ Check the connections to the other devices.
( 9, 10)
≥ Make sure that the received audio signal is
compatible with this system. ( 27)
≥ Turn this system off and then on again.
≥ If the main unit is connected to the TV with only
an HDMI cable, make sure that the TV's HDMI
terminal is labelled "HDMI (ARC)". If not, connect
using the optical digital audio cable. ( 9, 10)
≥ If the connections are correct, there might be a
problem with the cables. Redo the connections
with different cables.
≥ Check the audio output settings on the
connected device.
The dual audio cannot be changed from main
to secondary.
If the audio received from the connected device is
not "Dolby Dual Mono" or the output setting is not
"Bitstream", the setting cannot be changed from
this system. Change the setting on the connected
device.
The volume is lowered when the main unit is
turned on.
"Volume limitation" is on.
If the main unit is turned off with the volume setting
in the greater half (above 50), the main unit will
automatically lower the volume to the middle (50)
when the main unit is turned on. ( 21)
The sound lags behind the image.
Depending on the TV, when this unit is connected
to it via Bluetooth , the sound output from this unit
®
may lag behind the TV image. Connect this unit
and the TV with an HDMI cable/optical digital
audio cable. ( 9, 10)
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There is no audio.
The power of the main unit turns off
automatically.
(When the main unit detects a problem, a safety
measure is activated and the main unit
automatically switches to standby mode.)
≥ There is a problem with the amplifier.
≥ Is the volume extremely high?
If so, lower the volume.
≥ Is this system placed in an extremely hot place?
If so, move this system to a cooler place and wait a
few moments and then try to turn it on again.
≥ Does the "SURROUND" indicator keep blinking?
If so, temperature of this unit is hot. Wait until its
temperature becomes low and the blinking
stops.
If the problem persists, confirm the indicator
status, turn this system off, unplug the AC mains
lead and consult your dealer. Please be sure to
remember the indicator status and inform the
dealer.
Active Subwoofer
No power.
Ensure the AC mains lead of the active subwoofer
is connected properly.
After turning the subwoofer on, it immediately
turns off.
Unplug the AC mains lead and consult your dealer.
No sound from the subwoofer.
≥ Check that the active subwoofer is turned on.
≥ Check that the WIRELESS LINK indicator lights. ( 18)
The WIRELESS LINK indicator does not light.
≥ There is no link between the main unit and the
active subwoofer.
Check that the main unit is turned on.
≥ The active subwoofer and the main unit may not
be paired correctly. Try the following operation.
(Wireless pairing)
1 Turn on the main unit.
2 Press and hold [I/D SET] on the rear of the
active subwoofer for more than 3 sec.
(The wireless link indicator will blink.)
3 Press [MUTE], [SOUND]*, [MUTE]*,
[HDMI (ARC)]* consecutively.
* Within 3 sec.
(" ", "OPTICAL" and "HDMI (ARC)"
indicators will blink in rotation on the main unit.)
When the wireless pairing is successful, "
"OPTICAL" and "HDMI (ARC)" indicators will turn off.
Consult your dealer if the problem persists.
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