Sony CDX-M800

Adjusting the sound
characteristics

You can adjust the bass, treble, balance, fader,
and subwoofer volume.

Press (SOUND) repeatedly to select
the desired item.
Each time you press (SOUND), the item
changes as follows:

BASS (bass)

TREBLE (treble)

BALANCE (left-right)

t FADER (front-rear)

t SUB (subwoofer volume)

Adjust the level of a selected item by
pressing

< or ,.

When adjusting with the rotary commander,
press (SOUND) and rotate the VOL control.

After 3 seconds, the display returns to the
normal play mode.

Note
Adjust within 3 seconds after selecting the item.

Quickly attenuating the
sound

(With the rotary commander or the card
remote commander)

Press (ATT).
“ATT on” appears in the display momentarily.

To restore the previous volume level, press
(ATT) again.

Tip
When the interface cable of a car telephone is
connected to the ATT lead, the unit decreases the
volume automatically when a telephone call comes in
(Telephone ATT function).

Changing the sound and
display settings

— Menu

The following items can be set:

Set up

• Clock Adjust (page 8)
• CT (Clock Time) (page 19)
• Beep — to turn the beeps on or off.
• AUX-A (page 25) — to turn the AUX source

display on or off.

Display

• Clock (Clock Information) — to display the

clock and the play mode at the same time (on).

• A.IMG (Auto Image) (page 24) — to step

through the display images of one or all display
modes.

• Demo (Demonstration) — to turn the

Demonstration mode on or off.
– Select “on” to activate Demo display.
– Select “off” to deactivate the Demonstration

mode.

• Info (Display Information) — to display the

display items (depending on the source, etc.) at
the bottom of the display while a display image
is displayed:
– Select “on” to display the display items, and

by pressing (DSPL/PTY), the display item
will change.

– Select “off” to not display any display items.

• Dimmer — to change the brightness of the

display.
– Select “Auto” to dim the display only when

you turn the lights on.

– Select “on” to dim the display.
– Select “off” to deactivate the Dimmer.

• Contrast* — to adjust the contrast if the

indications on the display are not recognizable
because of the unit’s installation position.

• BlackOut — to blacken the display, while the

operation mode is on.
– Select “on” to black out the indications.

The indications will disappear, but the unit
will react if you press any button.