DOWNLOAD Sony HCD-VZ30AV / MHC-VZ30AV Service Manual ↓ Size: 33.23 MB | Pages: 86 in PDF or view online for FREE

13

A

B

5

4

4

3

2

9

7

8

6

1

1

 Rotating the pulley (LD), shift the slider (selection) in the arrow 

A

 direction.

2

 Rotating the pulley (mode) in the arrow direction, adjust the tray (sub) to be removed.

3

 Rotating the pulley (LD), shift the slider (selection) in the arrow 

B

 direction.

4

 Rotating the pulley (mode) in the arrow direction, remove the tray (sub) to be removed.

In mounting the parts, refer to page 14 and 15.

14

1

3

2

4

2

6

5

3

4

7

1

15

3

2

1

2

1

3

3

16

[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 x ,  DISPLAY , and  DISC 5 simultaneously.
2. The fluorescent indicator tube displays “COLD RESET” and

the set is reset.

[CD Ship 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 button to turn the set ON.
2. Press  V-GROOVE  button, and  ?/1  button simultaneously.
3. After the "STANDBY" display blinks six times, a message

“LOCK” is displayed on the fluorescent indicator tube, and the
CD ship 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 x , DISPLAY , and  DISC 1  simultaneously.
2. The fluorescent indicator tube becomes blank instantaneously,

and the set is reset.

[CD Service Mode]
• This mode can run the CD sled motor freely. Use this mode, for

instance, when cleaning the pickup.

Procedure:
1. Press ?/1 button to turn the set ON.
2. Select the function “CD”.
3. Press three buttons x ,  DISPLAY , and  Z 3  simultaneously.
4. The CD service mode is selected.
5. With the CD in stop status, turn the shuttle knob clockwise to

move the pickup to outside track, or turn the shuttle knob
counter-clockwise 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.

[VACS ON/OFF Mode]
• This mode is used to switch ON and OFF the VACS (Variable

Attenuation Control System).

Procedure:
Press the  ENTER  and  x  buttons simultaneously.  The message
“VACS OFF” or “VACS ON” appears.

[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 button to turn the set ON.
2. Select the function “TUNER”, and press  TUNER/BAND

button to select the BAND “AM”.

3. Press ?/1 button to turn the set OFF.
4. Press  MODE SELECT  and ?/1 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.

[GC Test  Mode]
• This mode is used to check the software version, FL tube, LED,

keyboard and VACS.

Procedure:
1. Press three buttons x ,  ENTER  , and  DISC 2  simultaneously.
2. LEDs and fluorescent indicator tube are all turned on.
3. When you want to enter the software version display mode,

press  DISC 1 .  The model number and destination are displayed.

4. Each time  DISC 1  is pressed, the display changes starting

from MC version, GC version, VC version, CD version, CM
version, ST version, TC version, TA version, TM version and
BR version in this order, and returns to the model number and
destination display.

5. When  DISC 3  is pressed while the version numbers are being

displayed except model number and destination, year, month
and day of the software creation appear.  When  DISC 3  is
pressed again, the display returns to the software version display.
When  DISC 1  is pressed while year, month and day of the
software creation are being displayed, the year, month and day
of creation of the software versions are displayed in the same
order of version display.

6. Press  DISC 2  button, and the key check mode is activated.
7. In the key check mode, the fluorescent indicator tube displays

“KEY

0 VOL0”.  Each time a button is pressed, “KEY” value

increases. However, once a button is pressed, it is no longer
taken into account.
“VOL” value increases like 1, 2, 3 ... if rotating  VOLUME
knob in “+”  direction, or it decreases like 0, 9, 8 ... if rotating in
“–” direction.

8. Flopping the  PUSH ENTRY  button to the up position shows

the indication “ 

R ”, the down position shows “ r ”, the left

position shows “ 

T ” and the right position “ t ”.

9. Also when  DISC 3  is pressed after lighting of all LEDs and FL

tubes, value of VACS appears.

10. To exit from this mode, press three buttons in the same manner

as step 1, or disconnect the power cord.