Sony CDX-3900R

Press (SOURCE) or insert a CD in the unit. For
details on operation, refer to page 8 (CD) and
page 10 (radio).

Press (OFF) to stop CD playback or radio
reception (the key illumination and display
remain on.)
Press (OFF) for two seconds to completely
turn the unit off.

Note
If your car has no ACC position on the ignition key
switch, be sure to turn the unit off by pressing
(OFF) for two seconds to avoid car battery wear.

This unit is operated by selecting items from a
menu.
To select, first enter the menu mode and
choose up/down ((+)/(–) of (PRST)), or
choose left/right ((–)/(+) of (SEEK/AMS)).

(PRST)

SOURCE

(SEEK/AMS)

SOURCE

Note
In Menu mode the “v” in the left of the display
indicates the selectable buttons of (PRST) and
(SEEK/AMS).

The clock uses a 24-hour digital indication.

Example: To set the clock to 10:08

Press (MENU), then press either side of
(PRST) repeatedly until “CLOCK”
appears.

1

Press (ENTER).

The hour indication flashes.

2

Press either side of (PRST) to set the
hour.

3

Press the (+) side of (SEEK/AMS).

The minute indication flashes.

4

Press either side of (PRST) to set  the
minute.

  Press (ENTER).

The clock starts.

After the clock setting is completed, the
display returns to normal play mode.