Test Mode - Sony HCD-GRX5 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 ,
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 I/u button to turn the set ON.
[LOOP]
2. Press button and
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:
[ENTER/NEXT]
1. Press three buttons p ,
taneously.
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 I/u button to turn the set ON.
2. Select the function "CD".
3. Press three buttons p ,
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.
[ENTER/NEXT]
, and simulta-
I/u
button simultaneously.
I/u
[DISC 1]
, and
[ENTER/NEXT]
, and § simulta-
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
I/u
2. Select the function "TUNER", and press
button to select the BAND "AM".
3. Press
I/u
[ENTER/NEXT]
4. Press
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
taneously.
2. LEDs and fluorescent indicator tube are all turned on.
[DISC 2]
Press
3. In the key check mode, the fluorescent indicator tube displays
"K 1 J0 V0". Each time a button is pressed, "K" value in-
creases. However, once a button is pressed, it is no longer taken
into account.
simul- "J" value increases like 1, 2, 3 ... if rotating
"+" direction, or it decreases like 0, 9, 8 ... if rotating in "–"
direction.
"V" value increases like 1, 2, 3 ... if rotating
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 man-
ner as step 1, or disconnect the power cord.
– 11 –
button to turn the set ON.
button to turn the set OFF.
and buttons simultaneously, and
I/u
[ENTER/NEXT]
p ,
button, and the key check mode is activated.
[TUNER/BAND]
[DISC 2]
, and simul-
[JOG]
knob in
[VOLUME]
knob