Sony AIR-SA20PK Operating Instructions (AIRSA15R) Operating Instructions Manual page 33

 The main unit is paired with another
S-AIR sub unit. Cancel pairing.
 Place so that the main unit and the sub
units are separated from other wireless
devices.
 Stop using any other wireless devices.
 The main unit or the sub unit is turned
off. Make sure the power supply cord
and the power cord are connected
and turn on the main unit and the sub
units.
The S-AIR channel fails to change.
 Check that the main unit and the sub
units are connected properly.
 If you are using an optional S-AIR sub
unit (such as the AIR-SA10) which
is not compatible with the MULTI
SOURCE mode, set the main unit to
the PARTY mode.
There is no sound.
 If you use another S-AIR main unit,
place it more than 8 m away from the
main unit.
 Confirm the S-AIR IDs of the main
unit and the sub units.
 Check the pairing setting.
 Place so that the main unit and the sub
units are closer.
 Stop using any equipment that
generates electromagnetic energy such
as a microwave oven.
 Place so that the main unit and the sub
units are separated from other wireless
devices.
 Stop using any other wireless devices.
 Change the S-AIR ID settings of the
main unit and the sub units.
 Turn off the main unit and the sub
units and then turn them on again.
 Check that the power supply cord and
the power cord are connected securely
and the main unit and the sub units are
turned on.
 Increase the volume of the sub units.
 Check that headphones are not
connected to the  (headphones) jack
on the rear panel of the sub units.
 Change the RF CHANGE setting on
the main unit (page 20).
There is noise or the sound skips.
 If you use another S-AIR main unit,
place it more than 8 m away from the
main unit.
 Place so that the main unit and the sub
units are closer.
 Stop using any equipment that
generates electromagnetic energy such
as a microwave oven.
 Place so that the main unit and the sub
units are separated from other wireless
devices.
 Stop using any other wireless devices.
 Change the S-AIR ID settings of the
main unit and the sub units.
 Do not place a mobile phone near the
main unit and the sub units, as this
may result in noise.
 Change the RF CHANGE setting on
the main unit (page 20).

Continued

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