DOWNLOAD Sony DVP-CX777ES Service Manual ↓ Size: 11.38 MB | Pages: 127 in PDF or view online for FREE

Model
DVP-CX777ES
Pages
127
Size
11.38 MB
Type
PDF
Document
Service Manual
Brand
Device
DVD
File
dvp-cx777es.pdf
Date

Sony DVP-CX777ES Service Manual ▷ View online

29
DVP-CX777ES
4-5.
DRIVE  MANUAL  OPERATION
On the Test Mode Menu screen, select 
[2]
, and the manual opera-
tion menu will be displayed. For the manual operation, each servo
on/off control and adjustment can be executed manually.
## Drive Manual Operation ##
Operation Menu
1. Disc type
2. Servo Control
3. Track/Layer Jump
4. Manual Adjustment
5. Auto Adjustment
6. Memory Check
7. Changer Manual Move
8. Changer Mecha Check
0. Disc Check Memory
_
Exit: RETURN
In using the Manual Operation menu, take care of the following
points. These commands do not provide protection, thus requiring
correct operation. The sector address or time code field is dis-
played when a disc is loaded.
1. Set correctly the disc type to be used on the Disc Type
setting screen.
The Disc Type setting must be performed after a disc was
loaded.
The set Disc Type is cleared when the tray is opened.
2. After power ON, if the Manual Operation was selected,
first perform “Reset SLED TILT” by opening 1. Disc Type
screen.
3. In case of an alarm, immediately press the
x
button to
stop the servo operation, and turn the power OFF.
Basic operation (controllable from front panel or remote com-
mander)
 
I
/
1
: Power OFF
 
x
: Servo stop
 
A
(DISC EJECT) : Stop+Eject/Loading
 
O
(RETURN)
: Return to Operation Menu or Test Mode
Menu
 
>
,
.
: Transition between sub modes of menu
[1]
 to 
[9]
[0]
: Selection of menu and items
Cursor 
[Q]
/
[q]
: Increase/Decrease in manually adjusted value
0. Disc Check Memory
Disc Check
1. SL Disc Check
2. CD Disc Check
3. DL Disc Check
0. Reset SLED TILT
_
On this screen, the mirror time is measured and written to the
EEPROM to check the disc type. First, set a DVD SL disc and
press 
[1]
, then set a CD disc and press 
[2]
, and finally set a DVD
DL disc and press 
[3]
. The measured mirror time is displayed re-
spectively.
The adjustment must be executed more than once after default
data were written.
From this screen, you can go to another mode by
pressing
>
or
.
key, but you cannot enter this mode from
another mode. You can enter this mode from the Operation Menu
screen only.
1. Disc Type
Disc Type
1. Disc Type Auto Check
2. DVD SL  12cm
3. DVD DL  12cm
4. CD      12cm
5. LCD     12cm
6. DVD SL  8cm
7. DVD DL  8cm
8. CD      8cm
9. LCD     8cm
0. Reset SLED TILT
_
EMG. 00
   0. Reset SLED TIL
On this screen, select the disc type. To select the disc type, press
the number of the loaded disc. The selected disc type is displayed
at the bottom. Selecting 
[1]
 automatically selects and displays the
disc type. In case of wrong display, retry “Disc Check Memory”.
Also, opening the tray causes the set disc type to be cleared. In
this case, set the disc type again after loading.
In performing manual operation, the disc type must be set.
30
DVP-CX777ES
Once the disc type has been selected, the sector address or time
code display field will appear as shown below. These values are
displayed when PLL is locked.
Disc Type
1. Disc Type Auto Check
2. DVD SL  12cm
3. DVD DL  12cm
4. CD      12cm
5. LCD     12cm
6. DVD SL  8cm
7. DVD DL  8cm
8. CD      8cm
9. LCD     8cm
0. Reset SLED TILT
_
SA.------ SI.-- EMG.00
DVD SL     12cm
Jitter FF
Display when DVD SL 12cm disc was selected
Disc Type
1. Disc Type Auto Check
2. DVD SL  12cm
3. DVD DL  12cm
4. CD      12cm
5. LCD     12cm
6. DVD SL  8cm
7. DVD DL  8cm
8. CD      8cm
9. LCD     8cm
0. Reset SLED TILT
_
TC.--:--:-- EMG.00
CD         12cm
Jitter FF
Display when CD 12cm disc was selected
[0]
 Reset SLED TILT : Reset the Sled and Tilt to initial position.
(Reset the Sled only to initial position be-
cause the Tilt mechanism is not available
in this model.)
[1]
 Disc Type Check : Judge automatically the loaded disc. As
the judged result is displayed at the bot-
tom of screen, make sure that it is correct.
If Disc Check Memory menu has not been
executed after EEPROM default setting,
the disc type cannot be judged. In this case,
return to the initial menu and make a check
for three types of discs (SL, DL, CD).
[2]
 to 
[9]
: Select the loaded disc. The adjusted value
is written to the address of selected disc.
No further entry is necessary if 
[1]
  was
selected.
2. Servo Control
Servo Control
1. LD         Off  R. Sled FWD
2. SP         Off  L. Sled REV
3. Focus      Off
4. TRK.       Off
5. Sled       Off
6. CLVA       Off
7. FCS. Srch  Off
0. Reset SLED TILT
_
SA.------ SI.-- EMG.00
DVD SL        12cm
Jitter FF
On this screen, the servo on/off control necessary for replay is
executed. Normally, turn on each servo from 1 sequentially and
when CLVA is turned on, the usual trace mode becomes active. In
the trace mode, DVD sector address or CD time code is displayed.
This is not displayed where the spindle is not locked.
The spindle could run overriding the control if the spindle system
is faulty or RF is not present. In such a case, do not operate CLVA.
[0]
 Reset SLED TILT : Reset the Sled and Tilt to initial position.
(Reset the Sled only to initial position be-
cause the Tilt mechanism is not available
in this model.)
[1]
 LD
: Turn ON/OFF the laser.
[2]
 SP
: Turn ON/OFF the spindle.
[3]
 Focus
: Search the focus and turn on the focus.
[4]
 TRK.
: Turn ON/OFF the tracking servo.
[5]
 Sled
: Turn ON/OFF the sled servo. When PLL
is not locked (cannot be locked), the sled
servo is not turned ON. The display keeps
OFF.)
[6]
 CLVA
: Turn ON/OFF normal servo of spindle
servo.
[7]
 FCS. Srch
: Apply same voltage as that of focus search
to the focus drive to check the focus drive
system.
5
 Sled FWD
: Move the sled outward. Perform this op-
eration with the tracking servo turned off.
%
 Sled REV
: Move the sled inward. Perform this opera-
tion with the tracking servo turned off.
31
DVP-CX777ES
3. Track/Layer  Jump
Track/Layer Jump
1.   1Tj   FWD  R. Fj (L1->L0)
2.   1Tj   REV  L. Fj (L0->L1)
3.   2Tj   FWD  U. Lj (L1->L0)
4.   2Tj   REV  D. Lj (L0->L1)
5.   NTj   FWD
6.   NTj   REV
7. 500Tj   FWD
8. 500Tj   REV
9. 10k/20k FWD
0. 10k/20k REV
_
SA.------ SI.-- EMG.00
DVD DL        12cm
Jitter FF
On this screen, track jump, etc. can be performed. Only for the
DVD-DL, the focus jump and layer jump are displayed in the right
field.
[1]
 1Tj FWD
: 1-track jump forward.
[2]
 1Tj REV
: 1-track jump reverse.
[3]
 2Tj FWD
: 2-track jump forward.
[4]
 2Tj REV
: 2-track jump reverse.
[5]
 NTj FWD
: N-track jump forward.
[6]
 NTj REV
: N-track jump reverse.
[7]
 500Tj FWD
: Fine search forward.
[8]
 500Tj REV
: Fine search reverse.
[9]
 10k/20k FWD : Direct search forward.
[0]
 10k/20k REV : Direct search reverse.
– The following commands are valid for DVD-DL disc only –
5
 (L1 
t L0): Focus jump (Trk/Sled Servo OFF) forward.
%
 (L0 
t L1): Focus jump (Trk/Sled Servo OFF) reverse.
$
 (L1 
t L0): Layer jump (Trk/Sled Servo ON) forward.
4
 (L0 
t L1): Layer jump (Trk/Sled Servo ON) reverse.
4. Manual Adjustment
Manual Adjustment:Up/Down
1. TRK.  Offset
2. Focus Gain
3. TRK.  Gain
4. Focus Offset
5. Focus Balance
6. L.F.  Offset
7. Analog FRSW
8. PLL Dac Gain
9. EQ    BOOST
0. TRK.  Balance
_
SA.------ SI.-- EMG. 00
DVD SL       12cm
Jitter FF
On this screen, each item can be adjusted manually. Select the
desired number 
[1]
 to 
[0]
 from the remote commander, and cur-
rent setting for the selected item will be displayed, then increase
or decrease numeric value with 
$
 key or 
4
 key. This value is
stored in the EEPROM. If CLV has been applied, the jitter is dis-
played for reference for the adjustment.
[1]
 TRK. Offset
: Adjusts tracking offset.
[2]
 Focus Gain
: Adjusts focus gain.
[3]
 TRK. Gain
: Adjusts track gain.
[4]
 Focus Offset
: Adjusts focus offset.
[5]
 Focus Balance : Adjusts focus balance.
[6]
 L.F. Offset
: Adjusts loop filter offset.
[7]
 Analog FRSW : Sets select switch of analog feedback circuit.
[8]
 PLL Dac Gain : Adjusts D/A converter gain of PLL.
[9]
 EQ BOOST
: Adjusts boost amount of equalizer.
[0]
 TRK. Balance : Adjusts tracking balance.
32
DVP-CX777ES
5. Auto Adjustment
Auto Adjustment
1. Auto TRK.  Offset
2. Auto FCS Balance
3. Auto Focus Offset
4. Auto Focus Gain
5. Auto TRK.  Gain
6. Auto EQ.
7. Auto L.F.  Offset
8. Auto Group Delay
9. Auto TRK.  Balance
_
SA.------ SI.-- EMG.00
DVD SL        12cm
Jitter FF
On this screen, each item can be adjusted automatically. Select the
desired number 
[1]
 to 
[8]
 from the remote commander, and se-
lected item is adjusted automatically.
[1]
 Auto TRK. Offset
: Adjusts tracking offset.
[2]
 Auto FCS Balance : Adjusts focus balance.
[3]
 Auto Focus Offset
: Adjusts focus offset.
[4]
 Auto Focus Gain
: Adjusts focus gain.
[5]
 Auto TRK. Gain
: Adjusts track gain.
[6]
 Auto EQ
: Adjusts EQ.
[7]
 Auto L.F. Offset
: Adjusts loop filter offset.
[8]
 Auto Group Delay : Adjusts amount of group delay.
[9]
 Auto TRK. Balance : Adjusts tracking balance.
6. Memory Check
The display image is shown below and three screens in total can
be selected.
EEPROM Data 1
-- DL --
             CD  LCD SL  L0  L1
Focus Gain   xx  xx  xx  xx  xx
TRK.  Gain   xx  xx  xx  xx  xx
FCS Balance  xx  xx  xx  xx  xx
Focus Bias   xx  xx  xx  xx  xx
TRV.  Offset xx  xx  xx  xx  xx
L.F.  Offset xx  xx  xx  xx  xx
EQ.   Boost  xx  xx  xx  xx  xx
_ UP    : Last Data
  DOWN  : Next Data
  CLEAR : Default Set
page.1/3
EEPROM Data 2
-- DL --
             CD  LCD SL  L0  L1
RF  Jitter   xx  --  xx  xx  xx
RF  Level    xx  --  xx  --  --
FE  Level    xx  --  xx  --  --
FE Balance   xx  --  xx  --  --
TRV.Level    xx  --  xx  --  --
TE  Gain     xx  xx  --  --  --
PI  Level    xx  --  xx  xx  --
_ UP    : Prev Data
  DOWN  : Next Data
  CLEAR : Default Set
page.2/3
EEPROM Data 3
-- DL --
             CD  LCD SL  L0  L1
Analog FRSW  xx  xx  xx  xx  xx
PLL Dac Gain xx  xx  xx  xx  xx
Mirror Time  xx  xx  xx  xx  xx
TRK. Balance xx  xx  xx  xx  xx
  THR A&L :  xx  xx xx/xx xx xx
_ UP    : Prev Data
  DOWN  : First Data
  CLEAR : Default Set
page.3/3
On this screen, current servo adjusted data stored in the EEPROM
are displayed. The adjusted data are initialized by pressing the
[CLEAR]
  key,  but be careful that they are not recoverable after
initialization.
Before clearing the adjusted data, make a note of the set data. This
screen will also appear if 
[0]
 All is selected in the Drive Auto
Adjustment. In this case, default setting cannot be made.
“THR A&L” data on the third page cannot be changed if default
setting is once made.
Page of 127
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