Test Mode - Sony HCD-GRX30 Service Manual

[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 p , ENTER/NEXT , and 1/u simulta-
neously.
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 vibra-
tion. Use this mode when returning the set to the customer after
repair.
Procedure:
1. Press 1/u button to turn the set ON.
2. Press LOOP button and 1/u button simultaneously.
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 p , ENTER/NEXT , and DISC 1
simultaneously.
2. The fluorescent indicator tube becomes blank instantaneously,
and the set is reset.
[Sled Servo Mode]
• This mode can run the CD sled motor freely. Use this mode, for
instance, when cleaning the pickup.
Procedure:
1. Press 1/u button to turn the set ON.
2. Select the function "CD".
3. Press three buttons p , ENTER/NEXT , and § simulta-
neously.
4. The Sled Servo mode is selected, if "CD" is blanking on the
fluorescent indicator tube.
5. With the CD in stop status, press ) + button to move the
pickup to outside track, or – 0 button to inside track.
6. 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.
SECTION 4

TEST MODE

[Change-over of AM Tuner Step between 9 kHz and
10 kHz]
• A step of AM channels can be changed over between 9 kHz and
10 kHz.
Procedure:
1. Press 1/u button to turn the set ON.
2. Select the function "TUNER", and press TUNER/BAND
button to select the BAND "AM".
3. Press 1/u button to turn the set OFF.
4. Press ENTER/NEXT and 1/u buttons simultaneously, and
the display of fluorescent indicator tube changes to "AM 9 k
STEP" or "AM 10 k STEP", and thus the channel step is changed
over.
[LED and Fluorescent Indicator Tube All Lit, Key Check
Mode]
Procedure:
1. Press three buttons p , ENTER/NEXT , and DISC 2
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 J0 V0". 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 "–" direction.
"V" value increases like 1, 2, 3 ... if rotating VOLUME knob
in "+" direction, or it decreases like 0, 9, 8 ... if rotating in
"–" 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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