Test Mode - Sony CX-BK2 Service Manual

Compact disc deck receiver
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[Cold Reset]
*
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
button to turn off the main power.
POWER 1
2. While depressing the
button, press the
x
3. The fluorescent indicator tube does not display any message
and the set is reset.
[Version Display Mode]
*
The version of the microcomputer is displayed.
Procedure:
1. Press the
button to turn the set on.
POWER 1
2. To enter the test mode, press two buttons
simultaneously for more than five seconds. The version of the
microcomputer is displayed.
[FL Tube Check]
*
All fluorecent segments are tested.
Procedure:
1. Insert a disc, and extract an AC plug.
[FUNCTION]
2. While depressing the
to enter the test mode.
3. The message "CD TEST" is displayed, the initialization is
performed.
Then all segments of the fluorecent indicator tube are turned on.
[CD Ship Mode]
*
This mode moves the optical pick-up to the position durable
to vibration. Use this mode when returning the set to the cus-
tomer after repair.
Procedure:
1. Press the
button to turn the set on.
POWER 1
2. Set the FUNCTION to CD.
3. Press the x button for more than five seconds.
4. After a message "MECHA LOCK" is displayed on the fluo-
rescent indicator tube, the CD ship mode is set and the power
is turned off.
[Disc Tray Lock]
The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.
Setting Procedure :
1. Press the
button to turn the set on.
POWER 1
2. Press two buttons of x and Z simultaneously for five sec-
onds.
3. The message "LOCKED" is displayed and the tray is locked.
Releasing Procedure :
1. Press two buttons of x and Z simultaneously for five sec-
onds again.
2. The message "UNLOCKED" is displayed and the tray is un-
locked.
Note : When "LOCKED" is displayed, the tray lock is not released
by turning power on/off with the
[AMP Test]
*
This mode is used to check the function of the amplifier.
Procedure:
1. Extract an AC plug.
[GEQ]
2. While depressing the
ter the AMP test mode. The message "AMP TEST" is displayed.
3. The message "Volume MAX" is displayed, when the
UME]
knob is rotated clockwise. The message "Volume 0" is
[VOLUME]
displayed, when the
wise.
[BASE]
[TREBLE]
4. Each time the
or
SECTION 5

TEST MODE

button.
POWER 1
x
and
POWER 1
button, insert an AC plug
button.
POWER 1
button, insert an AC plug to en-
[VOL-
knob is rotated counterclock-
knob is turned, the mes-
sage "EQ MAX", "EQ MIN" or "EQ FLAT" is displayed in
this order.
[AM Channel Step 9 kHz/10kHz Selection Mode]
*
Either the 9 kHz step or 10 kHz step can be selected for the
AM channel step.
Procedure:
1. Set the FUNCTION to AM.
[BAND]
2. While depressing the
ton.
3. The channel step is changed over.
[CD Test Mode]
*
This mode can run the CD sled motor freely. Use this mode,
for instance, when cleaning the pickup.
Procedure:
1. Extract an AC plug.
[FUNCTION]
2. While depressing the
to enter the CD test mode. The message "CD TEST" is dis-
played.
3. With the CD in stop status, press the
pickup to outside track, or press the
4. When press the
B
button, normal playback is performed.
5. Each time the
button is pressed during normal playback,
B
the tracking servo is switched on or off.
[CD Repeat 5 Times Limit Release Mode]
Procedure:
1. Press the
button to turn the set on.
POWER 1
2. Select the FUNCTION to CD.
3. Press three buttons of
x
neously.
4. The repeat all mark blinks and then repeat 5 times limit is
released.
CX-BK2
button, press the
POWER 1
button, insert an AC plug
>
button to move the
.
button to inside track.
[FUNCTION]
and
and
simulta-
B
but-
23

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