Sony D-VM1 Service Manual page 14

D-VM1
4-4. DRIVE AUTO ADJUSTMENT
On the Test Mode Menu screen, press 1 "R" key on the remote
commander, and the drive auto adjustment menu will be displayed.
## Drive Auto Adjustment ##
Adjustment Menu
0. ALL (adj:SL/CD/DL)
1. DVD-SL
2. CD
3. DVD-DL
4. SACD
5. CD-RW
Normally, 0 "R" is selected to adjust DVD (single layer), CD and
DVD (dual layer) in this order. But, individual items can be ad-
justed for the case where adjustment is suspended due to an error.
In this mode, the adjustment can be made easily through the op-
eration following the message displayed on the screen.
The disc used for adjustment must be the one specified separately.
However, for SACD disc or CD-RW disc, use the player with ini-
tial data if the disc is not available.
0. All
Select 0 "R" and press the ENTER "R" key, and the servo set
data in EEPROM will be initialized. Then, 1. DVD-SL disc, 2. CD
disc and 3. DVD-DL disc are adjusted in this order. Each time one
disc was adjusted, the message of disc replacement stand-by ap-
pears on the screen. Eject the disc and replace it with the specified
disc following the message. You can finish the adjustment if press-
ing the x "R" button. The system prompts you to confirm the
"S"-figure characteristics level, RF level and jitter value in the
middle of adjustment. If these characteristics levels are satisfied
and confirmed OK, press the ENTER "R" key to continue the
adjustment. If you cannot confirm that these characteristics levels
are satisfied and confirmed NG, press the x "R" button. Be sure
to measure the respective test discs to use in order to identify the
disc types before starting the adjustments of any disc type because
the automatic adjustment does not judge the disc type unlike con-
ventional models. Take care not to insert the discs of wrong types.
Before adjustment, be sure to place the player horizontally level
with the player placed in a horizontal posture. Do not give a shock
during adjustment.
14
Exit: RETURN
1. DVD-SL (single layer)
Select 1 "R" and insert DVD single layer disc, and press the
ENTER "R" key, and the adjustment will be made through the
following steps, then the adjusted values will be written to the
EEPROM.
DVD Single Layer Disc Adjustment Steps
1. SLED TILT Reset
2. Disc Check Memory SL
3. Wait 500 msec
4. Set Disc Type SL
5. LD ON
6. Spdl Start
7. Wait 1 sec
8. Focus Servo ON 1
9. CLVA ON
10. Wait 500 msec
11. Auto Track Offset Adjust
12. Tracking ON
13. CLVA ON
14. Wait 1 sec
15. Sled ON
16. Check CLV Lock
17. Auto LFO Adjust
18. FSGain (Focus Balance) Adjust
19. Auto Focus Gain Adjust
20. Auto Focus Offset Adjust
21. EQ Boost Adjust
22. Auto LFO Adjust
23. Auto Track Gain Adjust
24. All Servo Stop
25. Eep Copy Loop Filter Offset
2. CD
Select 2 "R" , insert the CD disc, and press the ENTER "R" key,
and the adjustment will be made through the following steps, then
adjusted values will be written to the EEPROM.
CD Adjustment Steps
1. Sled Rest
2. Disc Check Memory CD
3. Wait 500 msec
4. Set Disc Type CD
5. LD ON
6. Spdl Start
7. Wait 1 sec
8. Focus Servo ON 1
9. CLVA ON
10. Wait 500 msec
11. Auto Track Offset Adjust
12. Tracking ON
13. (TC Display Start)
14. CLVA ON
15. Wait 1 sec
16. Jitter Display Start
17. Sled ON
18. Check CLV ON
19. Auto LFO Adjust
20. Auto Focus Offset Adjust
21. Auto Focus Gain Adjust
22. Auto Focus Offset Adjust
23. Eq Boost Adjust
24. Auto LFO Adjust
25. Auto Track Gain Adjust
26. All Servo Stop
27. Rewrite the CD adjustment value over the original value.