Panasonic Technics SU-G700 Manuel D'utilisation page 30

Troubleshooting
Before requesting service, make the following checks. If you are uncertain about some of the check
points, or if the solutions indicated in the following guide do not resolve the issue, then consult your
dealer for instructions.
Heat buildup of this unit
This unit becomes warm while in use. This is not
a malfunction.
Do you have the latest firmware
installed?
Panasonic is constantly improving the unit's
firmware to ensure that our customers are
enjoying the latest technology. ( 27)
To restore all settings to the factory
defaults
When the following situations occur, reset the
memory:
• There is no response when buttons are pressed.
• You want to clear and reset the memory
contents.
1 Press [AMP].
2 Press [SETUP].
3 Press [ ], [ ] repeatedly to select
"Initialization" and then press [OK].
• A confirmation screen appears. Select "Yes"
in the following steps to restore all the
settings to defaults.
4 Press [ ], [ ] to select "Yes" and then
press [OK].
5 Press [ ], [ ] to select "Yes" and then
press [OK] again.
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(30)
General
The unit does not work.
Operations are not done properly.
• One of the unit's safety devices may have been
activated.
Press [ ] on the unit to switch the unit to
standby.
• If the unit does not switch to standby,
disconnect the AC power supply cord, wait
for at least 3 minutes, then reconnect it.
Press [ ] on the unit to switch on. If the
unit still cannot be operated, consult the
dealer.
A "humming" sound can be heard during
playback.
• An AC power supply cord of another device
or fluorescent light is near the cables. Turn off
other appliances, or keep them away from the
cables of this unit.
• A strong magnetic field near a TV or other
device may adversely affect the audio quality.
Keep this unit away from such a location.
• The speakers may output noise when a device
nearby is emitting powerful radio waves, such
as when a mobile phone is on a call.
No sound.
• Check the volume of this unit and the
connected device.
• Check connections to speakers and other
equipment.
• Connect speakers and measure the output
signal of the amplifier. ( 26)
• Check the impedance of the connected
speakers.
• Check to see if the correct input source is
selected.
• Insert the plugs of the cables to be connected
all the way in.
• Confirm the sound output setting. (Sound is
not output from the speakers connected to the
speaker output terminals of this unit while "PRE
OUT" is set to "On (Speaker:Off)".) ( 22)
• Playback of multi-channel content is not
supported.
• The digital audio input terminals of this unit can
only detect linear PCM signals. For details, refer
to the operating instructions of the device.