Sony CDX-M800

After the security code setup is
completed

Should you re-install the unit in another car or
change the battery, the Check Code display
appears after turning on the unit. Enter your
stored 4-digit code with the cursor buttons
(

M/m/,), and press (ENTER).

Code Input display

: returns to the clock display.

: “Code Error” message appears.

Input the correct code using the cursor buttons.

Cancelling the security code

Repeat step 1 to 4 in “Setting the security code”
(Code Del display appears). Enter your stored
code with the cursor buttons (

M/m/,), and

press (ENTER).

Code Del display

: returns to a normal display.

: the “Code Error” message appears.

Input the correct code using the cursor buttons.

Note
You cannot change the security code unless you
delete your stored code.

Tip
If the security code is not stored, the Code Del display
does not appear.

Additional Information

Maintenance

Fuse replacement

When replacing the fuse, be sure to use one
matching the amperage rating stated on the
original fuse. If the fuse blows, check the power
connection and replace the fuse. If the fuse blows
again after replacement, there may be an internal
malfunction. In such a case, consult your nearest
Sony dealer.

Warning

Never use a fuse with an amperage rating
exceeding the one supplied with the unit as this
could damage the unit.

Fuse (10 A)