JVC KD-NX901 Service Manual page 32

4.8 DVD unit check mode
When change the item must be press the [OK] key up to the execute.
Check item list
No. A/D key
1 [1]
2 [2]
3 [3]
[4]
4
5 [5]
6 [6]
7 Rotate
control dial to
clockwise
8 Rotate
control dial to
counterclockwise
9 [SOURCE]
10 [MODE]
11 [DISP]
12 [TP]
13 [OK]
14 [OK]
(Press two seconds)
15 [EJECT]
16 [EJECT]
Note Press key [1] before press the key [2] or [3] .
Press key [DISP] before the key [1] or [OK] pressed and confirm the indication of jitter value on the LCD.
No.6 item is only of first layer on DVD disk. Even other disks start of first layer on DVD disk.
When No.1 or No.13 item key pushed after jitter indication, a focus jump is executed.
(Only second layer of DVD disk)
Stop a disk before OPEN, CLOSE for all means. (OPEN and CLOSE are not executed in a disk rotate.)
The check mode can be exited either by pressing the [POWER] key or resetting the unit.
1-32 (No.MA161)
DVD unit operation
Start at normal speed
(After start, it is measured JITTER on the
internal position)
Tracking off on the outermost position of CD
Tracking off on the innermost position of CD
CD_LD lights and laser current is displayed
DVD_LD lights and laser current is displayed
DVD x1 jitter measuring mode
(for use in mechanism measurement)
Indication of EEPROM contents
(0x00-0xFF)
Indication of EEPROM contents
(0x00-0xFF)
Initialize of EEPROM contents
Indication of temperature
Search & jitter measurement to an appointed
position of DVD
Setting of MONITOR terminal
DVD normal speed start up
(After start, it is measured JITTER on the
internal position)
Disc stopped & LD-OFF
OPEN
CLOSE
LCD indication and contents
CURRENT: Laser current value
JITTER: Jitter value
For EF phase
For EF phase
CURRENT: Laser current value
JITTER: Jitter value
CURRENT: Laser current value
JITTER: Jitter value
CURRENT: Laser current value
JITTER: Jitter value
ADDRES: EEPROM address
DATA: EEPROM contents
ADDRES: EEPROM address
DATA: EEPROM contents
TEMP DATA: Temperature
PLACE: 0x00--0x06
(Measuring position with VT-501)
JITTER: Jitter value
DATA: 0x00-0x0c
CURRENT: Laser current value
JITTER Jitter value
CHECK
CHECK
CHECK