Mecha Aging; Emergency History - Sony DVP-S725D Service Manual

[0]
Reset SLED TILT Reset the Sled and Tilt to initial posi-
tion.
[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.
[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.
↑ Tilt UP
Move the tilt upward.
↓ Tilt DOWN
Move the tilt downward.
The following menus are normally not used.
3. Track/Layer Jump
4. Manual Adjustment
5. Auto Adjustment
The persons who do not know well about these menus should not
use them.
6. Memory Check
EEPROM DATA
CD
ID No. 00 SACD
Focus Gain xx xx
TRK. Gain xx xx
Focus Offset xx xx
TRK. Offset xx xx
L. F. Offset xx xx
EQ Boost xx xx
Jitter xx xx
Mirror Time xx xx
_
CLEAR: Default Set
This screen displays current servo adjusted data stored in the
EEPROM. Though adjusted data can be initialized with the
[CLEAR]
key, they cannot be restored after initialization.
So, before clearing, make a note of the adjusted data.
For reference, the drive has been designed so that the gain center
value is 20 and offset value is 80. Other values will be in a range
of 10 to 80. If extreme value such as 00 or FF is set, adjustment
will be faulty. In such a case, check for disc scratch or cable dis-
connection, then perform adjustment again.
– DVD –
SL L0 L1
xx xx xx
xx xx xx
xx xx xx
xx xx xx
xx xx xx
xx xx xx
xx xx xx
xx xx xx

6-6. MECHA AGING

### Mecha Aging ###
Press OPEN key
Abort: STOP key
On the Test Mode Menu screen, selecting
of mechanism. First, open the tray and load a disc. Press the
key, and the aging will start. When the tray is closed, the disc type
and size are judged and displayed. During aging, the repeat cycle
is displayed. Aging can be aborted at any time by pressing the
[STOP]
key. After the operation has stopped, unload the disc and
[STOP]
press again the
Test Mode Menu.

6-7. EMERGENCY HISTORY

### MEG. History ###
Laser Hours CD
DVD xxxxxxxh
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
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
[DISPLAY]
Press and
Both CD and DVD data are cleared.
Clearing emergency history
[TITLE] [CLEAR]
Press and
Initializing set up data
[DVD] [CLEAR]
Press and
The data have been initialized when "Set Up Initialized" mes-
sage is displayed. The EMG. History screen will be restored
soon.
6-9
[3]
executes the aging
[RETURN]
key or the key to return to the
xxxxxxxh
[4]
displays the infor-
[CLEAR]
keys in this order.
keys in this order.
keys in this order.
[PLAY]