Sony PFM-500A1WU Operating Instructions Manual page 7

To take off the panel cover
Loosen the screws as illustrated below and take off the
panel cover.
To install the Remote Commander in the
panel cover
Install the Remote Commander in the back of the left
panel cover as illustrated below.
Note
When housing the Remote Commander, make sure that
the top of the Remote Commander faces upward and
rear faces outside.
Screws
Remote
Commander
7
(EN)