Sony D-VM1 Service Manual page 18

D-VM1
6. Memory Check
EEPROM Data1 -– CD –-
ID No.XX
Fcs Gain xx xx xx
TRK. Gain xx xx xx
Fcs Offset xx xx xx
TRK. Offset xx xx xx
L. F. Offset xx xx xx
Alog FRSW xx xx xx
PLL DAC-G xx xx xx
EQ Boost xx xx xx
Jitter xx xx xx
Mirr Time xx
_ CLEAR: Default Set
This screen displays current servo adjusted data stored in the
EEPROM. Though the adjusted data can be initialized with the
CLEAR "R" 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 the offset value is 80. Other values will be in a
range of 10 to 80. If an extreme value such as 00 or FF is set,
adjustment will be faulty. In such a case, check for disc scratch or
cable disconnection, then perform adjustment again.
9. Disc Speed Change
The persons who do not know well about these menus should not
use them.
4-6. MECHA AGING
### Mecha Aging ###
MENU
0. Exec.Times..
1. Sled Move1..
2. Sled Move2..
3. Spdl Slowdouwn
4. Err Cancel
Play or ENTER:aging start
On the Test Mode Menu Screen, selecting 3 "R" executes the
aging of the mechanism. Press the x "R" key or RETURN "R"
key to return to the Test Mode Menu. The persons who do not
know well about these menus should not use them.
18
-– DVD –-
SCD RW 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
xx xx xx
xx xx
0
on
on
on
on
45000
Exit:RETURN
4-7. EMERGENCY HISTORY
### EMG. History ###
Laser Hours
Temperature
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
(1: Last EMG.) Exit: RETURN
On the Test Mode Menu screen, selecting 4 "R" displays the
information such as servo emergency history. The history infor-
mation from last 1 up to 10 can be scrolled with the ↑ "R" key
or ↓ "R" 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 "R" and CLEAR "R" keys in this order.
Both CD and DVD data are cleared.
• Clearing emergency history
Press TOP MENU "R" and CLEAR "R" keys in this order.
• Initializing set up data
Press MENU "R" and CLEAR "R" 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.
How to see Emergency History
3 1
1.
1 : Emergency Code
2 : Do not care
These codes are used for verification of software designing.
3 : Historical order 1 to 9
CD xxxxxxxh
DVD xxxxxxxh
x
Scroll: UP/DOWN
2
2