DOWNLOAD Sony DVP-CX875P Service Manual ↓ Size: 24.17 MB | Pages: 127 in PDF or view online for FREE

Model
DVP-CX875P
Pages
127
Size
24.17 MB
Type
PDF
Document
Service Manual
Brand
Device
DVD
File
dvp-cx875p.pdf
Date

Sony DVP-CX875P Service Manual ▷ View online

6-10
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
SA.------ SI.-- EMG. 00
DVD SL 12 cm
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 Focus 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
[7]
Auto L.F. Offset
Adjusts loop filter offset.
[8]
Auto Group Delay
6. Memory Check
Display images are shown as follows, and all three screens are
able to switch.
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    Setpage.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    Setpage.2/3
← Fj (L0 → L1)
Focus jump reverse.
(Trk/Sled Servo OFF)
 
↑ Lj (L1 → L0)
Layer jump forward.
(Trk/Sled Servo ON)
 ↓ Lj (L0 → L1)
Layer jump reverse.
(Trk/Sled Servo ON)
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. GD
ADJ
_
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 ↓ 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 the shifting switch for analog feed-
back circuit.
[8]
PLL Dac Gain
Adjusts PLL D/A converter gain.
[9] EQ BOOST
Adjusts amount of boost of equalizer.
[0]
 GD ADJ
Adjusts amount of group delay
6-11
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
   THR A&L: xx xx  xx/xx
xx
xx
_ UP
: Prev Data
  DOWN
: First Data
  CLEAR : Default    Setpage.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.
Data of “THR A & L” on page 3/3 can not be changed if default
set is done.
7. 300 CHG MechaCon Menu 1
On this test mode screen, selecting 
[7]
 enables the adjustment from
the front control panel such as disc loading. The following screen
appears.
Display when 
[7]
 is selected in the Drive Manual Operation
## 300 CHG MechaCon Menu 1 ##
ENTER
: Mecha Initial
PLAY
: Disc Load (Front)
STOP
: Disc UnLoad (Front)
OP/CL
: Door Open/Close
UP
: Unchuck (Front)
DOWN
: Chuck
RIGHT
: Loading (Front)
LEFT
: UnLoading (Front)
jog FOR : Table R Step Turn
jog PRV : Table L Step Turn
_
RETURN : Exit
[ENTER]
: Performs initialization of mechanism.
Mecha Initial
Because the mechanical initialization is per-
formed when the machine enters the Drive
Manual Operation mode, use this item when
an error such as adjustment error occurs.
[PLAY]
: Loads the disc from the chucking position of
Disc Load (Front)
the T. table toward inside the MD.
When the Disc Load is selected, a series of
operation starting from Unchucking – Load-
ing – Chucking is performed.
[STOP]
: Moves the disc from inside the MD to the T.
Disc Unload (Front) table.
When the Disc Unload is selected, a series
of operation starting from Unchucking –
Unloading – Chucking is performed.
[OP/CL]
: Opens and closes the door.
Door Open/Close
[UP]
: Un-chucks the MD block.
Un-chuck
[DOWN]
: Chucks the MD block.
Chuck
[RIGHT]
: Moves the disc from the un-chucked state
Loading (Front)
to the T. table then to the MD block.
[LEFT]
: Moves the disc from the un-chucked state
Unloading (Front)
to the MD block then to the T . table.
[jog FOR]
: Moves the T. table to the right in units of
Table R step Turn
the slit.
The T. table number is incremented in the
direction of positive (+) number.
[jog PRV]
: Moves the T. table to the left in units of the
Table L step Turn
slit.
The T. table number is decremented in the
direction of negative (–) number.
[RETURN]
: Returns to the Operation Menu.
Exit
8. 300 CHG MechaCon Menu 2
On this test mode screen, selecting 
[8]
 enables the adjustment from
the rear panel such as disc loading. The following screen appears.
Display when 
[8]
 is selected in the Drive Manual Operation
## 300 CHG MechaCon Menu 2 ##
ENTER
: Mecha Initial
PLAY
: Disc Load (Rear)
STOP
: Disc UnLoad (Rear)
OP/CL
: Door Open/Close
UP
: UnChuck (Rear)
DOWN
: Chuck
RIGHT
: Loading (Rear)
LEFT
: UnLoading (Rear)
DISP
: Mecha Adjust
PAUSE
: TT Offset Debug
_
RETURN : Exit
Insertion and rejection of discs are performed from the rear panel.
All operations are the same as those of the 300 CHG MechaCon
Menu 1 except 
[DISP]
 and 
[PAUSE]
.
[DISP]
: When this item is selected, the machine enters
Mecha Adjust
the adjustment mode of the disc existence/
non-existence sensor. The following screen
appears.
[PAUSE]
: When this item is selected, load to the T.
TT Offset Debug
table is measured by changing the value of
the PWM control to the motor. Never at-
tempt to enter this mode. When this mode
is selected, the machine needs to perform
the Mecha Initial.
6-12
[LEFT]
: Determines the detection position of the T.
table by counting the number of slit’s tooth
of the T. table when the T. table is turned
counterclockwise by a full rotation.
Display when Turn Table Adjust Mode is selected in Mecha Ad-
just Mode.
## Turn Table Adjust Mode ##
JOGFWD    : Right 1 Step
JOGPRV    : Left 1 Step
DMSFWD    : Right 2 Step
DMSPRV    : Left 2 Step
ENTER
   : ENTER -> Exit
STEP
   : 12
RETURN : Exit
Performs the fine adjustment of the slit position of the T. table
using the Jog dial and the DMS (disc selection dial).
✫ After this operation, perform Disc Sensor Adjust (SEE 6-12).
[JOGFWD]
: Moves the T. table to the right by one pulse.
STEP +
[JOGPRV]
: Moves the T. table to the left by one pulse.
STEP –
[DMSFWD]
: Moves the T. table to the right by two pulses.
STEP ++
[DMSPRV]
: Moves the T. table to the left by two pulses.
STEP – –
[ENTER]
: Determines the adjustment values and the
set value.
STEP
: When the T. table is adjusted using the above
commands, the adjustment position during
each adjustment item is displayed. The ini-
tial value is set to 12.
Display when 
[PAUSE]
 is selected in the 300 CHG MechaCon
Menu 2
## Turn Table Offset Debug ##
No
|
On
|
off
1
|
xx
|
xx
2
|
xx
|
xx
3
|
xx
|
xx
4
|
xx
|
xx
5
|
xx
|
xx
PLAY
: Slow Turn (No.5)
STOP
: Turn Stop
PAUSE
: Change PWM
_
RETURN : Exit
[PLAY]
: Moves the T. table slowly.
[STOP]
: Stops movement of the T. table.
[PAUSE]
: Sets the PWM value in the order starting
from NO 
→ On→ Off.
Display when the Mecha Adjust is selected in the 300 CHG Mecha
Con Menu 2
## Mecha Adjust Mode ##
RIGHT
: Disc Sensor Adjust
LEFT
: TurnTable Adjust
TurnTable Data
: xx
Sensor sensiv
: xx
Sensor Posi RP
: xx
Sensor Posi RM
: xx
Sensor Posi LP
: xx
Sensor Posi LM
: xx _
RETURN : Exit
Turn Table Data
: Indicates the center position of the slit.
(Width of one slit = 24 pulses). The default
value is 12.
Sensor Sensiv
: Indicates sensitivity of the disc sensor. The
normal value is ranging form 0 to 15.
Sensor Posi RP
: These are not the important values.
Sensor Posi RM
: They indicate the position of the disc sensor
Sensor Posi LP
when the disc sensor monitors the disc when
Sensor Posi LM
rotating the T. table. Rx indicates the value
when the T. table is rotated clockwise and
Lx indicates  the value when the T. table is
rotated counterclockwise.
[RIGHT]
: Enters the sensitivity adjustment mode of
the disc sensor.
[LEFT]
: Adjusts finely the center position of the slit
in units of plus using the jog dial.
Display when Disc Sensor Adjust is selected in the 300 CHG Mecha
Con Menu 2
## Sensor Adjust Mode ##
DOWN
: Sensitivity Adjust
RIGHT
: Position Adjust R
LEFT
: Position Adjust L
RETURN : Exit
Before this operation, perform Turn Table Adjust (SEE 6-12) or
Mecha Initial (SEE 6-11).
You must perform 3 operations for Sensor Adjustment.
[DOWN]
 
[RIGHT]
[LEFT]
or LEFT
→ RIGHT
[DOWN]
: Performs the sensitivity adjustment of the
disc sensor by turning T. table for a full ro-
tation.
[RIGHT]
: Determines the detection position of the T.
table by counting the number of slit’s tooth
of the T. table when the T. table is turned
clockwise by a full rotation.
6-13
This mode is prepared for measurement of
the load to the T. table as described before.
Result of the measurement is not reflected
on adjustment.
After this mode is selected, Mecha Initial
must be performed.
6-6.
MECHA  AGING
When 
[3]
 is selected on this test mode screen, the machine enters
the mechanical aging mode. The following screen appears. Do not
use this mode.
### Mecha Aging ###
1. Please Select Aging Mode
2. All Mecha
: Random Aging Move
3. All Mecha
: +1 Move
4. All Mecha
: -1 Move
5. All Mecha
:  1 Disc Front
6. All Mecha
:  1 Disc Rear
7. TurnTable
: Random Move
8. TurnTable
: Half Move
9. Door Open/Close
Exit: RETURN
6-7.
EMERGENCY  HISTORY
### EMG. History ###
Laser Hours
CD
xxh xxm
DVD
xxh xxm
 1.
00 00 00 00  00 00 00 00
00 00 00 00  00 00 00 00
 2.
00 00 00 00  00 00 00 00
00 00 00 00  00 00 00 00
_
Select: 1-9
Scroll: UP/DOWN
(1:Last EMG.)
 Exit: RETURN
On the Test Mode Menu screen, selecting 
[4]
 displays the infor-
mation such as servo emergency history. The history information
from last 1 up to 10 can be scrolled with  ↑ key or ↓ key. Also,
specific information can be displayed by directly entering that
number with ten keys.
The upper two lines display the laser ON total hours. Data below
minutes are omitted.
Clearing History Information
Clearing laser hours
Press 
[DISPLAY]
 and 
[CLEAR]
 keys in this order.
Both CD and DVD data are cleared.
Clearing emergency history
Press 
[TOP MENU]
 and 
[CLEAR]
 keys in this order.
Initializing set up data
Press 
[MENU]
 and 
[CLEAR]
 keys in this order.
The data have been initialized when “Set Up Initialized” mes-
sage is displayed. The EMG. History screen will be restored
soon.
6-8.
VERSION  INFORMATION
## Version Information ##
IF con.
Ver:x.xxx(xxxx)
Group
xx
SYScon.
Ver:x.xxx(xxxx)
Model
xx
Region
0x
Servo DSP Ver: x.xxx
AVD ucode Ver: xxxxxxxx
OPT TYPE : x LASER
Exit: RETURN
The ROM version, region code, OPT type, etc. are displayed if
[5]
 is selected in the Test Mode Menu.
The parenthesized hexadecimal number in the version number field
indicates the checksum value of the ROM.
Note : After down loading ROM data, sometimes it happens that
checksum is not the same as that of ROM data which has
been down loaded. In such a case, go back to the menu
and select “0. Syscon Diagnosis”, then select “1. All” in
“2. Version”. If the result of this operation does not give
an agreement, it must be either Down Load error or ROM
error.
6-9.
VIDEO  LEVEL  ADJUSTMENT
On the Test Mode Menu screen, selecting 
[6]
 displays color bars
for video level adjustment. During display of color bars, OSD dis-
appears but the menu screen will be restored if pressing any key.
Page of 127
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