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4.7
DVD unit check mode
Change LCD indication with a [FF
Check item list
No.
A/D key
1
[1]
2
[2]
3
[3]
4
[4]
5
[5]
6
[6]
7
[DISP]
8
[SOURCE]
9
[SEL]
10
[MODE]
11
[BAND]
12 [DISC UP
13 [DISC DW
.
Note
In the case of the jitter measurement: Begin a service mode after insert a disc.
.
Press key [1] of No.1 before an item in which the No.2 or 3 key is pressed.
.
Press key [1] of No.1 or key [12] of No.12 before an item in which the No.10 key is pressed and confirm
the indication of jitter value on the LCD.
.
No.6 starts only a DVD1 layer disc. Even other discs start DVD1 layer.
.
When No.1 and No.12 are pushed after jitter indication, a focus jump is executed. (only DVD2 layer)
.
Stop a disc before OPEN, CLOSE by all means.(OPEN and CLOSE are not executed in a disc turn.)
.
The check mode can be exited either by pressing the [POWER] key or by resetting the unit.
] button and a [REW
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
Initialization of EEPROM contents
Indication of temperature
Search & jitter measurement to an appointed
position of DVD
Setting of MONITOR terminal
] DVDx1 double speed start
(After start, it is measured JITTER on the
internal position)
] Disc stopped & LD-OFF
] button.
Example of
Indication contents
LCD indication
NORMPLAY
CUR
Laser current value
* * * *
JIT
* * * *
Jitter value
EF-BAL
OUTTROFF
For EF phase error
EF-BAL
INNTROFF
For EF phase error
CDLD ON
CUR
Laser current value
* * * *
JIT
Jitter value
* * * *
DVDLD ON
CUR
Laser current value
* * * *
JIT
Jitter value
* * * *
DVDx1JIT
CUR
Laser current value
* * * *
JIT
Jitter value
* * * *
ROM DATA
ADDR
EEPROM address
* * * *
DATA
EEPROM contents
* * * *
ROMCLEAR
TEMP
TEMP
Temperature
* * * *
DVD JIT
PLC
(Position measured with
* * * *
JIT
* * * *
VT-501 jitter value)
MONITOR
M1
* * * *
M2
* * * *
PLAY
CUR
Laser current value
* * * *
JIT
Jitter value
* * * *
STOP
(No.MA308)1-39
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