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Model
HCD-GNZ7D HCD-GNZ8D HCD-GNZ9D MHC-GNZ7D MHC-GNZ8D MHC-GNZ9D
Pages
104
Size
9.88 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-gnz7d-hcd-gnz8d-hcd-gnz9d-mhc-gnz7d-mhc-gnz8d-.pdf
Date

Sony HCD-GNZ7D / HCD-GNZ8D / HCD-GNZ9D / MHC-GNZ7D / MHC-GNZ8D / MHC-GNZ9D Service Manual ▷ View online

21
HCD-GNZ7D/GNZ8D/GNZ9D
SECTION 4
TEST MODE
[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 of  
x
  ,  [DISPLAY] and  [DISC 1]
simultaneously.
2. The message “COLD RESET” is displayed, and the set is reset.
[Tuner Step Change]
• A step of AM channels can be changed over between 9 kHz and
10 kHz.
Procedure:
1. Press the 
 `/1
  button to turn the power ON, and set the function
to TUNER/BAND “AM”.
2. Press the  
`/1
  button to turn the power OFF.
3. Press two buttons of [TUNING +] and  
`/1
  simultaneously, and
the message changes to “AM 9 k STEP” or “AM 10 k STEP”,
and thus the channel step is changed over.
[TV/SAT Function Change]
• Change of function TV or SAT (also the input level changes).
Procedure:
1. Press the  
`/1
  button to turn the power ON.
2. Press two buttons of [TV/SAT] and  
`/1
  simultaneously, and
the message changes to “SAT” or “TV”, and thus the channel
step is changed over.
[Color System Change]
Procedure:
1. Press the  
`/1
  button to turn the power ON.
2. Press two buttons of  
X
  and  
`/1
  simultaneously.
3. The message “COLOR NTSC” or “COLOR PAL” is displayed.
[Disc Tray  Lock]
The disc tray lock function for the antitheft of a demonstration disc
in the store is equipped.
Setting Procedure :
1. Press the  
?/1
  button to turn the power ON.
2. Press two buttons of  
x
  and  
Z
  simultaneously for five seconds.
3. The message “LOCKED” is displayed, and the tray is locked.
Releasing Procedure :
1. Press two buttons of  
x
  and  
Z
  simultaneously for five seconds.
2. The message “UNLOCKED” is displayed, and the tray is
unlocked.
Note: When the message “LOCKED” is displayed, the tray lock is
not released by turning power ON/OFF with the  
?/1
  button.
[Progressive Change]
Procedure:
1. Press the  
`/1
  button to turn the power ON.
2. Press two buttons of [DVD] and [DISPLAY] simultaneously.
[Panel Test  Mode]
• This mode is used to check the fluorescent indicator tube, LEDs,
keyboard, volume and phones.
Enter The Panel Test Mode
Procedure:
1. Press three buttons of  
x
  ,  [DISPLAY] and [DISC 2] simulta-
neously.
2. LEDs and fluorescent indicator tube are all turned on.
Model Information
Procedure:
1. It puts it into the start of the panel test mode.
2. Press the [DIRECTION] button, the mode change model name
or destination display.
Key Test Mode
Procedure:
1. It puts it into the start of the panel test mode.
2. Press the  
Y
  button, the mode change key test mode.
VACS Display
Procedure:
1. It puts it into the start of the panel test mode.
2. Press the  
X
  button, the mode change VACS display.
The message “VACS 0+0” is displayed.
Version Display
Procedure:
1. It puts it into the start of the panel test mode.
2. Press the [DIRECTION] button, the mode change version display.
Press the [DISPLAY] button, the mode change version or days is
displayed.
3. You can exit the Test Mode when you press three buttons of  
X
,
[DISPLAY] and [DISC 2] simultaneously.
[Common Test  Mode]
• This mode is used to check operations of the respective sections
of Amplifier and Tape.
Procedure:
• To enter MC Test Mode
1. Press the  
`/1
  button to turn the power ON.
2. Press three buttons of 
x
  ,  [DISPLAY]  and  [DISC 3]  simulta-
neously.
* Check of Amplifier
Initial settings: Input
, TV
EQ
, FLAT
Mode , MUSIC
VACS , OFF
   • When you press the [EQ BAND/MEMORY] button, the message
“GEQ FLAT” is displayed, and the entire band of the graphic
equalizer is set to the center level.
   • When [VOLUME] control knob is turned clockwise even slightly,
the sound volume increases to is maximum and the message
“VOLUME MAX” is displayed for two seconds, then the display
returns to the original display.
   • When [VOLUME] control knob is tuned counter-clockwise even
slightly, the sound volume decreases to its minimum and the
message “VOLUME MIN” is displayed for two seconds, then
the display returns to the original display.
   • Whenever you press the [GROOVE] button, it toggles between
“VACS ON” and “VACS OFF” so that you can switch ON or
OFF of VACS.
* To return to normal mode again.
1. When you want to exit this mode, press the  
`/1
  button.
2. The cold reset is enforced at the same time.
[DVD and CD Ship Mode (No Memory Clear)]
• This mode moves the position to the position durable to
vibration. 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 two buttons of  
x
  and [DISC SKIP] simultaneously.
3. After the “STANDBY” display blinks 15 times, the message
“LOCK” is displayed, and the DVD ship mode is set.
[DVD and CD Ship Mode (Memory Clear)]
• 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 the  
`/1
  button to turn the power ON.
2. Press three buttons of  
x
 ,  [DISPLAY] and [DIRECTION] simul-
taneously.
3. After the “STANDBY” display blinks 15 times, the message
“LOCK” is displayed, and the DVD ship mode is set.
22
HCD-GNZ7D/GNZ8D/GNZ9D
DVD SECTION
4-4. MIRROR TIME ADJUSTMENT
To enter Mirror Time Adjustment, press  5 “R”  button on the remote
commander. The screen will appear as below.
There are five main commands in the Mirr time Adjust menu as
shown in the figure above. The functions of each command are
described in the following page.
1. CD MIRR time Check
This command checks the Mirror time value for CD disc.
2. DVD MIRR time Check
This command checks the Mirror time value for DVD disc.
3. Threshold
This command displays the threshold value between CD and DVD
mirror time.
4. Save to EEPROM
This command saves an adjusted mirror time value to the EEPROM.
5. Default set MIRR time
This command will set CD and DVD mirror time to firmware default
value.
[Open] / [Close]
Pressing the  A  button controls the tray for disc change
during mirror time adjustment.
[0] Return to previous menu
Press  0 “R”  button to return to previous menu.
4-4-1. EXECUTING MIRROR TIME ADJUSTMENT
In order to execute mirror time adjustment, the following standard
procedures must be followed.
(1) In standby mode, press three buttons  x  ,  A  and [VOLUME +]
simultaneously.
(2) Select “2. Drive Manual Operation”.
MIRR time Adjust Menu
1. CD MIRR time Check:
2. DVD MIRR time Check:
3. Threshold:
4. Save to EEPROM
5. Default set MIRR time
[Open] Tray open [Close] Tray close
[0] Return to previous menu
Remocon Diagnosis Menu
0. External Chip Check
1. Servo Parameter Check
2. Drive Manual Operation
3. Emergency History Check
4. Version information
5. Video Level Adjustment
Model
:  GVLXD_xx
IF-con
: Ver. xx.xx (xxxx)
Syscon
: Ver. x.xxx
Ver. 1.1
[TEST DISC LIST]
Be sure to use the DVD disc that matches the signal standards of
your region.
• CD
YEDS-18 (Part No.: 3-702-101-01)
PATD-012 (Part No.: 4-225-203-01)
• DVD SL (Single Layer)
    NTSC : HLX-503 (Part No.: J-6090-069-A)
HLX-504 (Part No.: J-6090-088-A)
    PAL
: HLX-506 (Part No.: J-6090-077-A)
• DVD DL (Dual Layer)
    NTSC : HLX-501 (Part No.: J-6090-071-A)
HLX-505 (Part No.: J-6090-089-A)
    PAL
: HLX-507 (Part No.: J-6090-078-A)
4-1. GENERAL DESCRIPTION
The Mirror Time and 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).
The Mirror Time and IOP measurement is required is such events
where servicing a DVD-Player includes changing the Base Unit
(BU). For each new BU to be used with a certain MV-044 board,
Mirror Time and IOP measurement need to be carried out.
4-2. STARTING TEST MODE
Press three buttons  
x  
,  A  and [VOLUME +] simultaneously
with the DVD player in standby mode.
The Test Mode starts, then the menu shown below will be
displayed on the TV screen.
The menu above is the Remocon Diagnosis Menu screen which
consists of six main function. At the bottom of the menu screen,
the model name and IF-con version. To enter Mirror Time
Adjustment menu, press button  2 “R”  on the remote commander
to enter Drive Manual Operation menu. To exit from the Test Mode,
press the power button on the remote commander.
4-3. DRIVE MANUAL OPERATION
The Drive Manual Operation menu consists of five main
function. By pressing  2 “R”  button on the remote commander in
the Remocon Diagnosis Menu, the screen will appear as below.
Remocon Diagnosis Menu
0. External Chip Check
1. Servo Parameter Check
2. Drive Manual Operation
3. Emergency History
4. Version Information
5. Video Level Adjustment
Model Name : GVLXD_XX
IF-con
: V
Syscon
: Ver.
er. xx.xx (xxxx)
x.xxx
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
23
HCD-GNZ7D/GNZ8D/GNZ9D
(3) Select “5. MIRR time Adjust”.
(4) Select “5. Default set MIRR time”.
(5) Select “3. Threshold”.
(6) Confirm the number. If it is 7D, go to next step. If it is any
      other value, return to step 4.
(7) Push  A  button to eject tray.
(8) Insert Test Disc HLX-504 into tray.
(9) Push  A  button to close tray.
(10) Push “2. DVD MIRR time Check”.
(11) Wait for HEX number to display.
(12) Confirm the number, if XX is 28 ~ 70, proceed with next
        step. If no, return to 8.
(13) Push “4. Save to EEPROM”.
Drive Manual Operation
1. Servo Control
2. Track/Layer Jump
3. Manual Adjustment
4. Mecha test mode
5. MIRR time Adjust
0. Return to Top Menu
MIRR time Adjust Menu
1. CD MIRR time Check:
2. DVD MIRR time Check:
3. Threshold:
4. Save to EEPROM:
5. Default set MIRR time:
[Open] Tray open [Close] Tray close
[0] Return to previous menu
MIRR time Adjust Menu
1. CD MIRR time Check:
2. DVD MIRR time Check:
3. Threshold: 7D
4. Save to EEPROM:
5. Default set MIRR time:
[Open] Tray open [Close] Tray close
[0] Return to previous menu
MIRR time Adjust Menu
1. CD MIRR time Check:
2. DVD MIRR time Check:  xx  xx
3. Thereshold:
4. Save to EEPROM:
5. Default set MIRR time:
[Open] tray open [close] Tray close
[0] Return to previous menu
(14) Confirm the same values are displayed. If it is not same,
        return to step 7.
(15) Push  A  button to eject tray.
(16) Take out HLX-504 and insert Test Disc YEDS-18 into
        tray.
(17) Push  A  button to close tray.
(18) Push “1. CD MIRR time check”.
(19) Wait for HEX number to display.
(20) Confirm the number, if YY is 5A ~ E8, proceed with next
        step. If no, return to 15.
(21) Push “4. Save to EEPROM”.
(22) Confirm the same values are displayed. If it is not the
        same, return to step 15.
(23) Push  A  button to eject tray.
(24) Remove Test Disc YEDS-18 from tray.
(25) Push  A  button to close tray.
(26) Press  0 “R”  button to the Drive Manual Operation menu.
(27) Press  0 “R”  button to return to the Remocon Diagnosis
Menu.
(28) Press the  
?/1
  button to switch OFF set.
MIRR time Adjust Menu
1. CD MIRR time Check:
2. DVD MIRR time Check:  XX XX
3. Threshold:
4. Save to EEPROM:
5. Default set MIRR time:
[Open] Tray open [close] Tray close
[0] Return to previous menu
MIRR time Adjust Menu
1. CD MIRR time Check:  yy  YY
2. DVD MIRR time Check:  XX  XX
3. Threshold:
4. Save to EEPROM:
5. Default set MIRR time:
[Open] Tray open [close] Tray close
[0] Return to previous menu
MIRR time Adjust Menu
1. CD MIRR time check:  YY  YY
2. DVD MIRR time check:  XX  XX
3. Threshold:
4. Save to EEPROM:
5. Default set MIRR time:
[Open] Tray open [close] Tray close
[0] Return to previous menu
24
HCD-GNZ7D/GNZ8D/GNZ9D
4-5. EXECUTING IOP MEASUREMENT
In order to execute mirror time adjustment, the following standard
procedures must be followed.
(1) In standby mode, press three buttons  x  ,  A  and
[VOLUME +] simultaneously.
(2) Select “2. Drive Manual Operation” by pressing the  2 “R”
button on the remote commander. The screen will appear as
     below.
(3) Select “3. Manual Adjustment” by pressing the  3 “R”  button
on the remote commander. The screen will appear as below.
(4) Select Iop by pressing  6 “R”  button on the remote commander.
Remocon Diagnosis Menu
0. External Chip Check
1. Servo Parameter Check
2. Drive Manual Operation
3. Emergency History Check
4. Version information
5. Video Level Adjustment
Model
: GVLXD XX
IF-con  Ver
: XX.XX (XXXX)
Syscon  Ver : X.XX
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. Eg 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
(5) Wait until a hexadecimal number appear.
(6) Convert each data from hexadecimal to decimal using
      conversion table.
(7) Substract between these two values.
(8) 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.
(9) Press  RETURN “R”  button to return back to previous menu.
(10) Press  0 “R”  button to return to Top Menu and power OFF
the DVD Player.
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:
Change Value
[0] Return to previous menu
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