Read Sony CX-LDB30 / CX-LDB50 / XR-DB30 / XR-DB50 Service Manual online
19
CX-LDB30/LDB50
[COLD RESET]
*
The cold reset clears all data including preset data stored in
the RAM to initial conditions. Execute this mode when
returning the set to the customer.
the RAM to initial conditions. Execute this mode when
returning the set to the customer.
Procedure:
1. Press the ?/1 button to turn off the main power.
2. Press two buttons of [AUDIO IN] and ?/1 simultaneously for
2. Press two buttons of [AUDIO IN] and ?/1 simultaneously for
more than two seconds.
3. The fluorescent indicator tube does not display any message
and the set is reset.
[COMMON TEST]
*
This mode is used to check the function of the amplifier.
Procedure:
1. Press the ?/1 button to turn the set on.
2. Press two buttons of x and [DISPLAY] simultaneously for
2. Press two buttons of x and [DISPLAY] simultaneously for
more than two seconds.
3. The message “Volume MAX” is displayed, when the
[VOLUME] knob is rotated clockwise. The message “Volume
MIN” is displayed, when the [VOLUME] knob is rotated
counterclockwise.
MIN” is displayed, when the [VOLUME] knob is rotated
counterclockwise.
4. Each time the [BASS] or [TREBLE] knob is turned or Press the
[EQ] button (RM), the message “TONE MAX”, “TONE MIN”
or “TONE FLAT” is displayed in this order.
or “TONE FLAT” is displayed in this order.
[PANEL TEST]
*
The panel test, the version, and inducing is displayed.
Procedure:
1. Press the ?/1 button to turn off the main power.
2. Press two buttons of [AUDIO IN] and [DISPLAY] simultaneously
2. Press two buttons of [AUDIO IN] and [DISPLAY] simultaneously
for more than two seconds.
3. All lighting display is done.
4. 4-1. To enter the test mode, press the button [i-Bass]
4. 4-1. To enter the test mode, press the button [i-Bass]
simultaneously.
The version of the microcomputer is displayed.
The version of the microcomputer is displayed.
4-2. To enter the key test mode, press the button [PLAY MODE/
TUNING MODE] simultaneously.
The version of the microcomputer is displayed.
The version of the microcomputer is displayed.
5. Press two buttons of [AUDIO IN] and [DISPLAY] simultaneously
for more than two seconds, it ends.
[CD Repeat 5 Times Limit Release Mode]
Procedure:
1. Press the ?/1 button to turn the set on.
2. Select the FUNCTION to CD.
3. Press two buttons of Z CD and [PLAY MODE/TUNING MODE]
2. Select the FUNCTION to CD.
3. Press two buttons of Z CD and [PLAY MODE/TUNING MODE]
simultaneously for more than two seconds.
4. The repeat all mark blinks and then repeat 5 times limit is
released.
[CD Ship Mode and Memory clear]
*
This mode moves the optical pick-up to the position durable
to vibration and Memory Clear. Use this mode when returning
the set to the customer after repair.
to vibration and Memory Clear. Use this mode when returning
the set to the customer after repair.
Procedure:
1. Press the ?/1 button to turn the set on.
2. Set the FUNCTION to CD.
3. Press two buttons of Z CD and > simultaneously for
2. Set the FUNCTION to CD.
3. Press two buttons of Z CD and > simultaneously for
more than two seconds.
4. After a message “MECHA LOCK” is displayed on the
fluorescent indicator tube, the CD ship mode is set and the
power is turned off.
power is turned off.
[Disc anti-theft]
Procedure:
1. Press the ?/1 button to turn the set on.
2. Set the FUNCTION to CD.
3. Press two buttons of x and Z CD simultaneously for more
2. Set the FUNCTION to CD.
3. Press two buttons of x and Z CD simultaneously for more
than five seconds.
4. Press two buttons of x and Z CD simultaneously for more
than five seconds to turn the set off.
[CD ERROR CODE]
Procedure:
1. Press the ?/1 button to turn the set on.
2. Set the FUNCTION to CD.
3. Press two buttons of CD u and [DISPLAY] simultaneously
2. Set the FUNCTION to CD.
3. Press two buttons of CD u and [DISPLAY] simultaneously
for more than two seconds.
4. Switch the CDM/NO DISC using > , . .
Advance the number using > , Reverse the number using
. .
. .
[CD SERVICE MODE Mode]
*
This mode can run the CD sled motor freely. Use this mode,
for instance, when cleaning the pickup.
for instance, when cleaning the pickup.
Procedure:
1. Press the ?/1 button to turn the set on.
2. Set the FUNCTION to CD.
3. While depressing the CD u button, Press the [i-Bass] button.
2. Set the FUNCTION to CD.
3. While depressing the CD u button, Press the [i-Bass] button.
The message “SERVICE MODE” is displayed.
4. With the CD in stop status, press the > button to move the
pickup to outside track, or press the . button to inside
track.
track.
5. When press the CD u button, normal playback is
performed.
6. Each time the CD u button is pressed during normal
playback, the tracking servo is switched on or off.
7. To exit this mode, either change to other functions or extract
an AC plug.
[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.
AM channel step.
Procedure:
1. Turn on the power, and press the [TUNER] button to select the
AMP band.
2. Turn off the power.
3
3
Press the > button and the ?/1 button at the same time to
enter this mode.
enter this mode.
SECTION 4
TEST MODE
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