CX-LFAV500, XR-FAV500 - Sony Audio Service Manual (repair manual). Page 14

14

*

The cold reset clears all data including preset data stored in
the RAM to initial conditions. Execute this mode when re-
turning the set to the customer.

Procedure:
1. Press the [POWER] button to turn off the main power.
2. While depressing the  x  button, press the [POWER] button.
3. The fluorescent indicator tube does not display any message

and the set is reset.

*

Fluorescent segments are tested when this test is activated.

Procedure:
1. Extract an AC plug.
2. While depressing the  CD u  button, insert an AC plug.
3. All segments of the fluorescent indicator tube turn on.
4. CD test mode is activated.
5. To exit from this mode, press the [POWER] button or discon-

nect the power cord.

*

The model and the version are displayed.

Procedure:
1. Press the [POWER] button to turn the set on.
2. To enter the test mode, press two buttons  x  and [POWER]

simultaneously for more than five seconds. The model and the
version are displayed.

*

This mode is used to check the function of the amplifier.

Procedure:
1. Extract an AC plug.
2. While depressing the [AUX] button, insert an AC plug to enter

the AMP test mode. The message “AMP TEST” is displayed.

3. The message “Volume MAX” is displayed, when the [VOL-

UME] knob is rotated clockwise. The message “Volume 0” is
displayed, when the [VOLUME] knob is rotated counterclock-
wise.

4. Each time the [BASS] or [TREBLE] knob is turned, the mes-

sage “EQ MAX”, “EQ MIN” or “EQ FLAT” is displayed in
this order.

5. To release from this mode, disconnect the AC plug and turn

the power off.

*

Either the 9 kHz step or 10 kHz step can be selected for the
AM channel step.

Procedure:
1. Set the function to AM.
2. While depressing the [TUNER/BAND]  button, press the

[POWER] button.

3. The channel step is changed over.

Procedure:
1. Extract an AC plug.
2. While depressing the  TAPE Y  button, insert an AC plug.
3. The message “TC TEST” is displayed and TC test mode is

activated.

*

Zero Return

1. Press the + > M  or  – .m  button.
2. The tape is rewound to the counter zero position.
*

Automatic record/playback test

1. Press  the  REC START/REC PAUSE  button.
2. The message “AUX” is displayed and AUX input is selected.
3. The tape is rewound to the counter zero position and record-

ing is started automatically.

4. When the  x  button  is pressed, the tape is rewound to the

recording stated point and the set starts playback.

5. To exit from this mode, press the [POWER] button or discon-

nect the power cord.