Sony MDR-RF820RK

Replacing the ear pads

The ear pads are replaceable. If the ear pads
become dirty or worn out, replace them as
illustrated below.
The ear pad is not commercially available. You
can order replacements from the store where you
purchased this system, or at your nearest Sony
dealer.

Remove the old ear pad by pulling
it out of the groove on the housing.

Place the new ear pad on the driver
unit and insert the edge of the pad
into the groove as illustrated.

Make sure that the entire edge of the ear pad is
securely inserted into the groove.

The effective areas of
the transmitter

The optimum distance is up to approximately
100 m without the system picking up some
interference. However, the distance may vary
according to the surroundings and environment.
If the system picks up some noise while using it
within the above mentioned distance, reduce the
distance between the transmitter unit and the
headphones, or select another channel.

Notes
• When you use the headphones inside the effective

areas of the transmitter, the transmitter can be placed
in any direction from the listener.

• Even within the signal reception area, there are some

spots (dead spot) where the RF signal can not be
received. This characteristics is inherent to RF signals,
and does not indicate malfunction. By slightly moving
the transmitter, location of the dead spot can be
changed.