Test Mode - Sony HCD-D290 Service Manual

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[MC 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.
Procedure:
1. Press three buttons GROOVE , ENTER/NEXT , and
DISC 1 simultaneously.
2. The fluorescent indicator tube becomes blank instantaneously,
and the set is reset.
[CD Delivery Mode]
• This mode moves the pickup to the position durable to vibration.
Use this mode when returning the set to the customer after repair.
Procedure:
1. Press POWER button to turn the set ON.
2. Press PLAY MODE button and POWER button simulta-
neously.
3. A message "LOCK" is displayed on the fluorescent indicator
tube, and the CD delivery mode is set.
[MC Hot Reset]
• This mode resets the set with the preset data kept stored in the
memory. The hot reset mode functions same as if the power cord
is plugged in and out.
Procedure:
1. Press three buttons GROOVE , ENTER/NEXT , and
DISC 2 simultaneously.
2. The fluorescent indicator tube becomes blank instantaneously,
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and the set is reset.
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[Sled Servo Mode]
• This mode can run the CD sled motor freely. Use this mode, for
instance, when cleaning the pickup.
Procedure:
1. Select the function "CD".
2. Press three buttons GROOVE , ENTER/NEXT , and
FLASH simultaneously.
3. The Sled Servo mode is selected, if "CD" is blanking on the
fluorescent indicator tube.
4. With the CD in stop status, press ) button in CD section to
move the pickup to outside track, or 0 button to inside track.
5. To exit from this mode, perform as follows:
1) Move the pickup to the most inside track.
2) Press three buttons in the same manner as step 2.
Note:
• Always move the pickup to most inside track when exiting from
this mode. Otherwise, a disc will not be unloaded.
• Do not run the sled motor excessively, otherwise the gear can be
chipped.
[Change-over of FUNCTION Name]
• The FUNCTION name of external input terminal can be changed
over to VIDEO or MD. With the FUNCTION selected to "MD",
about 5dB mute is applied to the input gain.
Procedure:
1. Press POWER button to turn the set OFF.
2. Press POWER button together with FUNCTION button, and
the power is turned on, the display of fluorescent indicator tube
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changes to "MD" or "VIDEO" instantaneously, and thus the
FUNCTION is changed over.
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SECTION 3

TEST MODE

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[Change-over of AM Tuner Step between 9kHz and 10kHz]
• A step of AM channels can be changed over between 9kHz and
10kHz.
Procedure:
1. Press POWER button to turn the set ON.
2. Select the function "TUNER", and press TUNER/BAND
button to select the BAND "AM".
3. Press POWER button to turn the set OFF.
4. Press ENTER/NEXT and POWER buttons simultaneously,
and the display of fluorescent indicator tube changes to "AM
9k STEP" or "AM 10k STEP", and thus the channel step is
changed over.
[LED and Fluorescent Indicator Tube All Lit, Key Check
Mode]
Procedure:
1. Press three buttons GROOVE , ENTER/NEXT , and DISC 3
simultaneously.
2. LEDs and fluorescent indicator tube are all turned on.
Press DISC 2 button, and the key check mode is activated.
3. In the key check mode, the fluorescent indicator tube displays
"K 1 V0 J0". Each time a button is pressed, "K"value increases.
However, once a button is pressed, it is no longer taken into
account.
"J" Value increases like 1, 2, 3 ... if rotating JOG knob in "+"
direction, or it decreases like 0, 9, 8 ... if rotating in "–" direc-
tion.
"V" Value increases like 1, 2, 3 ... if rotating VOLUME knob
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in "+" direction, or it decreases like 0, 9, 8 ... if rotating in "–"
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direction.
4. To exit from this mode, press three buttons in the same manner
as step 1, or disconnect the power cord.
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