DOWNLOAD Sony DVP-NS715P Service Manual ↓ Size: 17.81 MB | Pages: 94 in PDF or view online for FREE

Select 

[2]

, insert CD disc, and press 

[ENTER]

 key, and the adjust-

ment will be made through the following steps, then adjusted val-
ues will be written to the EEPROM.

CD Adjustment Steps

1. Sled Reset
2. Disc Check Memory CD
3. Set Disc Type CD
4. Spdl Start
5. LD ON
6. Focus Error Check
7. Fcs ON 1 with PI Level Mesure
8. Auto Track Offset Adjust L0
9. Trv Level Check
10. Tracking ON
11. CLVA ON
12. Sled ON
13. Auto focus Blance Adjust
14. Auto Loop Filter Offset Adjust
15. Auto Focus Gain Adjust L0
16. Auto Focus Balance Adjust L0
17. Eq Boost Adjust
18. Auto Loop Filter Offset Adjust
19. Auto Track Gain Adjust
20. Copy Adjustment Data to LCD
21. RF Level Measure
22. Jitter Measure
23. All Servo Stop

Select 

[3]

, insert DVD dual layer disc, and press 

[ENTER]

 key,

and the adjustment will be made through the following steps, then
adjusted values will be written to the EEPROM.

DVD Dual Layer Disc Adjustment Steps

1. Sled Reset
2. Disc Check Memory DL
3. Set Disc Type DL

DVD DL Layer 1 Adjust

4. Spdl Start
5. LD ON
6. Fcs ON 1 with PI Level Mesure
7. Auto Track Offset Adjust L1
8. Tracking ON
9. Clva ON
10. Sled ON
11. Auto Focus Balance Adjust
12. Auto Focus Gain Adjust L1
13. Auto Focus Balance Adjust L1
14. Eq Boost Adjust L1
15. Auto Track Gain Adjust L1
16. Jitter Measure

DVD DL Layer 0 Adjust

17. Focus Jump (L1 

→ L0)

18. Auto Track Offset Adjust L0
19. Tracking ON
20. Clva ON
21. Sled ON
22. Auto Focus Balance Adjust
23. Auto Focus Gain Adjust L0
24. Auto Focus Balance Adjust L0
25. Eq Boost Adjust L0
26. Auto Track Gain Adjust L0
27. Jitter Measure
28. All Servo Stop

No adjustments, because the adjusted data of CD are reflected to
LCD disc and the adjusted data of CD and DVD-DL are reflected
to SACD (hybrid disc).

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

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

screen.
The disc type must be set after a disc was loaded.
The set disc type is cleared when the tray is opened.

2. After power ON, if the Drive Manual Operation was se-

lected, 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/   ]

Power OFF

x

Servo stop

A

Stop+Eject/Loading

[     RETURN]

Return to Operation Menu or Test Mode
Menu

>

, 

.

Transition between sub modes of menu

[1]

 to 

[9]

, 

[0]

Selection of menu items

Cursor

↓

/

↑

Increase/Decrease in manually adjusted
value

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.

Disc Type

Disc Type

1. Disc Type Auto Check

2. DVD SL

12cm

3. DVD DL

12cm

4. CD

12cm

5. SACD

12cm

6. DVD SL

8cm

7. DVD DL

8cm

8. CD

8cm

9. LCD

8cm

0. Reset SLED TILT

EMG. 00

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.
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. SACD

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

1

O

Disc Type

1. Disc Type Auto Check

2. DVD SL

12cm

3. DVD DL

12cm

4. CD

12cm

5. SACD

12cm

6. DVD SL

8cm

7. DVD DL

8cm

8. CD

8cm

9. LCD

8cm

0. Reset SLED TILT

TC. --:--:-- EMG.00

CD

12cm

[0]

Reset SLED TILT

Reset the Sled and Tilt to initial
position.(This model does not have Tilt
device, so reset only the Sled to initial
position.)

[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 cor-
rect.
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 se-
lected disc. No further entry is neces-
sary if 

[1]

 was selected.

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 12 cm

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.(This model does not have Tilt
device, so reset only the Sled to initial
position.)

[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.
If PLL is not locked (or can not be
locked), the sled servo does not be
turned ON. (Indication remains as 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.

→ Sled FWD

Move the sled outward. Perform this
operation with the tracking servo turned
off.

← Sled REV

Move the sled inward. Perform this op-
eration with the tracking servo turned
off.

Tracking/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 SL 12 cm

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 –

 → Fj (L1 → L0)

Focus jump forward.
(Trk/Sled Servo OFF)

← 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)

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

Adjustment: Up/Down

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

Auto Adjustment

1. Auto TRK. Offset

2. Auto Focus 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

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 Balnce

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