Sony HCD-HPR90 - Receiver Component For Mini Hi-fi Systems Service Manual page 13

CD SERVICE MODE
This mode can run the CD sled motor freely. Use this mode, for
instance, when cleaning the optical pick-up.
Procedure:
1. Press the button to turn the power on.
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2. Press the [CD] or [FUNCTION] key on the remote commander
to select "CD".
3. Press three buttons of [PUSH ENTER], [DSGX] and [DISC 1]
simultaneously, the message "SERVICE IN" is displayed on
the fluorescent indicator tube.
4. Press the button to move the optical pick-up to outside
M L
track and the message "SLED OUT" is displayed on the
fluorescent indicator tube, or press the
inside track and the message "SLED IN" is displayed on the
fluorescent indicator tube.
5. Press the button, "LD OFF" is displayed and laser diode is
x
turned off. Each time
x
OFF switch is performed.
6. To release this mode, press the
TUNER STEP CHANGE-OVER
A step of AM tuning interval can be changed over between 9 kHz
or 10 kHz.
Procedure:
1. Press the button to turn the power on.
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2. Press the [TUNER/BAND] button to select "AM".
3. Press the button again to turn the power off.
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4. Press two buttons of
M L
5. The message "STEP 9kHz" or "STEP 10kHz" is displayed on
the fluorescent indicator tube and thus the tuning interval is
changed over.
button to
l m
button is pressed, laser diode ON/
button.
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and simultaneously.
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HCD-HPR90/HPR99XM
13