Sony MDS-JA333ES Service Manual page 26

4-7. Test Mode Displays
The DISPLAY key is used to switch display modes. The display modes are switched in the following order each time the DISPLAY key is
pressed.
Order Description
1 MODE display
2 Error rate display
3 Address display
4 Auto gain display
5 Detrack display
6 IVR display
7 Displays C1 error and JITTER
8 Displays AD error and JITTER
When CPLAY or CREC starts, the display is forced to switch to 2 as initial mode.
Supplementary explanation of each display
1. MODE display
"TEMP ADJUS" (C03), "CPLAY1MODE" (C34), etc. are displayed.
2. Error rate display
Error rates are displayed as follows.
C= AD=
C= means the C1 error and AD= means ADER.
3. Address display
Addresses are displayed as follows.
h= s=
h= a=
h= means the header address, s= means the SUBQ address and a= means the ADIP address.
* When the address cannot be read, "-" is displayed.
Displays other than the above ones are not used for service.
4-8. Meaning of Other Displays
Display
H
X
z REC
SYNC (other models/TOC EDIT)
L. SYNC (other models/A.SPACE)
OVER
B/1 (REP portion)
A-/REP
TRACK/(LP)4/calender frame
DISC/LP2
SLEEP/SHUF
MONO
PROGRAM
4-9. Information
Displays the version of software.
[Operation procedure]
1. Press the YES button while "INFORMATION" is displayed.
2. The version of the software will be displayed.
3. End this mode with the MENU/NO button.
4-10. Countermeasure when MEMORY NG Appears
If there is an abnormality in non-volatile memory data, "E001" / "MEMORY NG" appears so that the MO deck is not operated. If this
happens, immediately enter the test mode and do the following.
[Operation procedure]
1. Enter the test mode. (Refer to Section 4-2.)
2. The display for selecting the test mode normally appears. However, if there is an abnormality in non-volatile memory data, the following
characters appears: "INIT EEP?"
3. Press the x button and A button at the same time.
4. Rotate the lAMSL knob to select "MBU-5J".
5. Press the lAMSL knob. If the non-volatile memory data succeeds in being rewriting, the mode returns to the norma test mode
and the display for selecting modes appears.
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Example of display
CPLAY1 (
C= AD=
h s
AG= /
ADR= # 0000
[ ] [ ] [
J C
J AD=
(pit block of recordable disc and disc for playback only)
(groove of recordable disc)
MODE display
Servo ON
Tracking servo OFF
Recording mode OFF
CLV low speed mode
ABCD adjustment completed
Tracking offset cancel ON
Tracking auto gain OK
Focus auto gain OK
Pit
High reflection
CLV-S
CLV LOCK
EF BAL change
[ ]
]
Contents
Off
Servo OFF
Tracking servo ON
Recording mode OFF
CLV normal mode
Tracking offset cancel OFF
Groove
Low reflection
CLV-A
CLV UNLOCK