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Model
DAV-DZ20 HCD-DZ20
Pages
72
Size
4.2 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
dav-dz20-hcd-dz20.pdf
Date

Sony DAV-DZ20 / HCD-DZ20 Service Manual ▷ View online

17
HCD-DZ20
3-11. BELT, MS-203 BOARD
1
two claws
5
three claws
7
 MS-203 board
6
 DC motor
3
 belt
2
 chuck cam
4
 
screw
(M 1.7 
×
 2.5) 
18
HCD-DZ20
3-12. OPTICAL PICK-UP (KHM-313CAA)
1
two claws
3
two claws
2
 chuck cam
4
 base unit 
5
two claws
7
bu holder
8
two insulators 
9
two insulators
6
four insulator screws
0
optical pick-up 
     (KHM-313CAA) 
19
HCD-DZ20
SECTION  4
TEST MODE
Note:
Incorrect operations may be performed if the test mode is not
entered properly.
In this case, press the  ?/1  button to turn the power off, and retry
to enter the test mode.
3. Disc Tray Lock
The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.
Setting Procedure :
1. Press the  ?/1  button to turn the set on.
2. Press the  FUNCTION  button to set DVD function.
3. Insert a disc.
4. Press the  x  button and the  A  button simultaneously for five
seconds.
5. The message “LOCKED” is displayed and the tray is locked.
Releasing Procedure :
1. Press the  x  button and the  A  button simultaneously for five
seconds again.
2. The message “UNLOCKED” is displayed and the tray is
unlocked.
Note:
When “LOCKED” is displayed, the tray lock is not released by turning
power on/off with the  ?/1  button.
4. DVD Ship Mode
Use this mode when returning the set to the customer after repair.
Procedure:
1. Press the  ?/1  button to turn the set on.
2. Press the  FUNCTION  button to set the function “DVD”.
3. Remove all discs, and then press two buttons  H  and  ?/1
simultaneously.
4. After a message “MECHA LOCK” is displayed on the
fluorescent indicator tube, pull out the AC plug.
5. To exit from this mode, press the  ?/1  button to turn the set
on.
5. AM Step Change (Except AEP, UK)
A step of AM channels can be changed over between 9 kHz
and 10 kHz.
Procedure:
1. Press the  ?/1  button to turn the set ON.
2. Select the function “TUNER”, and press  FUNCTION  button
to select the BAND “AM”.
3. Press the  ?/1  button to turn the set OFF.
4. Press two buttons  >  and  ?/1  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.
6. Product Out
This mode moves the optical pick-up to the position durable to
vibration and clears all data including preset data stored in the RAM
to initial conditions. Use this mode when returning the set to the
customer after repair.
Procedure:
1. Press the  ?/1  button to turn the power on.
2. Press the  FUNCTION  button to set the function “DVD”.
3. Remove all discs, and then press three buttons  > ,  A  and
?/1  simultaneously.
4. After the “STANDBY” blinking display finishes, the message
“MECHA LOCK” is displayed on the fluorescent indicator
tube disconnect the AC power plug, then the ship mode is set.
1. 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 customers.
Procedure:
1. Press the  ?/1  button to turn the power on.
2. Press three buttons  x  ,   A  and   ?/1  simultaneously.
3. When this button is operated, display as “COLD RESET” for
a while and all of the settings are reset.
2. Panel Test Mode
This mode is used to check the software version, FL, LED
and KEY.
2-1. Display Test Mode
Procedure:
1. Press the  ?/1  button to turn the power on.
2. Press three buttons  X ,  . and  A  simultaneously.
3. When the display test mode is activated, all segments are turned
on.
4. To exit from this mode, press three buttons  X ,  . and  A
simultaneously.
2-2. Version Test Mode
Procedure:
1. When the display test mode is activated, press the  .  button
and the message “AS1” is displayed, the version test mode is
activated.
2. Whenever the  .  button is pressed, the display changes in
the following order.
*1: CE2 changes depending on destination.
3. Press the  >  button and the date of the software production
is displayed.
4. Press the  >  button again and the version is displayed.
5. To exit from this mode, press three buttons  X ,  . and  A
simultaneously.
2-3. Key Test Mode
Procedure:
1. When the display test mode is activated, press the  H  button,
to select the key test mode.
2. To enter the KEY test mode, the fluorescent indicator displays
“K0 V0”. Each time an another button is pressed, “KEY” value
increases. However, once a button is pressed, it is no longer
taken into account. When all keys are pressed correctly, “K8
V0” is displayed.
3. When the  VOLUME  control is turned in the direction of (+),
“V0” is changed to “V1”, then ... “V9”.
When the  VOLUME  control is turned in the direction of (–),
“V0” is changed to “V9”, then ... “V1”.
4. To exit from this mode, press three buttons  X ,  . and  A
simultaneously.
“AS1” (Model name) t “CE2
*1
” (Destination) t MC 
20
HCD-DZ20
(2) Select “2. Drive Manual Operation” by pressing the   2   button
on the remote commander. The screen will appear as shown.
(3) Select “3. Manual Adjustment” by pressing the  3  button on
the remote commander. The screen will appear as shown.
(4) Select “6.IOP” by pressing the  6  button on the remote
commander.
(5) Wait until a hexadecimal number appear.
(6) Convert each data from hexadecimal to decimal using
  conversion table.
(7) Please find the label on the rear of the BU (Base Unit).
 The default IOP value is written in the label.
(8) Subtract between these two values.
(9) If the remainder is smaller than 93 (decimal), then it is OK.
 However if the value is higher than 93, then the BU  is defective
 and need to be change.
(10) Press the  RETURN  button on the remote commander to
   return back to previous menu.
(11) Press the  0  button on the remote commander to return to
   Top Menu.
Drive Manual Operation
1. Servo Control
2. Track/Layer Jump
3. Manual Adjustment
4. Tray Aging Mode
5. MIRR time Adjust
0. Return to Top Menu
Manual Adjust
1. Track Balance Adjust:
2. Track Gain Adjust:
3. Focus Balance Adjust:
4. Focus Gain Adjust:
5. Eq Boost Adjust:
6. Iop:
7. TRV. Level:
8. S curve(FE) Level:
9. RFL(PI) Level:
0. MIRR Time:
O o
    Change Value
[RETURN] Return to previous menu
Manual Adjust
1. Track Balance Adjust:
2. Track Gain Adjust:
3. Focus Balance Adjust:
4. Focus Gain Adjust:
5. Eq Boost Adjust:
6. Iop. 5B:
7. TRV. Level:
8. S curve(FE) Level:
9. RFL(PI) Level:
0. MIRR Time:
[RETURN] Return to previous menu
O o
    Change Value
DVD SECTION
7-1. GENERAL DESCRIPTION
The IOP measurement allows you to make diagnosis and adjustment
simply by using the remote commander and monitor TV. The
instructions, diagnosis results, etc. are given on the on-screen display
(OSD).
Be sure to execute the IOP measurement when a BU (Base Unit) is
replaced.
7-2. HOW TO ENTER TEST MODE
While pressing the  
x  
and    A  buttons simultaneously, turn
VOLUME  control in the direction of (+) with the DVD player in
power on.
The Test Mode starts, displayed “SERVICE IN” on this model
display then the menu shown below will be displayed on the TV
screen.
The menu above is the Remocon Diagnosis Menu screen which
consists of five main functions. At the bottom of the menu screen, the
model name and IF-con version. To exit from the Test Mode, press
the power button on the remote commander.
7-3. EXECUTING IOP MEASUREMENT
In order to execute IOP measurement, the following standard
procedures must be followed.
(1) In power on, while pressing the  
x  
and  A  buttons
simultaneously, turn the  VOLUME  control in the direction
of (+).
Remocon Diagnosis Menu
0. External Chip Check
1. Servo Parameter Check
2. Drive Manual Operation
3. Emergency History
4. Version Information
Model Name
IF-con
: V
Syscon
: Ver.
er. XX.XX (XXXX)
X.XXX
: AS1_ XX
*
1
*1: Changes depending on destination 
Remocon Diagnosis Menu
0. External Chip Check
1. Servo Parameter Check
2. Drive Manual Operation
3. Emergency History
4. Version information
Model Name
IF-con
:  Ver. XX.XX (XXXX)
Syscon
:  Ver. X.XXX
: AS1_ XX
*
1
*1: Changes depending on destination 
Page of 72
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