Sony MDS-PC1 Service Manual page 35

4-5. SELECTING THE TEST MODE
There are altogether 23 test modes, shown in the following table. Rotating the AMS dial to the right switches to the mode below the current
mode in the table while rotating to the left switches to the mode above. Each time the EDIT/NO button is pressed, the display changes in the
following order;
"TEMP CHECK" n "TEMP ADJUST" n "SLED MOVE" n "TEMP CHECK"...
Display
Temperature compensation offset check
TEMP CHECK
Laser power check
LDPWR CHECK
Traverse (MO) check
EF MO CHECK
Traverse (CD) check
EF CD CHECK
Focus bias check
FBIAS CHECK
Continuous playback mode
CPLAY MODE
Continuous recording mode
CREC MODE
S curve check
Scurve CHECK
Detrack check
DETRK CHECK
Temperature compensation offset adjustment
TEMP ADJUST
Laser power check
LDPWR ADJUST
Traverse (MO) check
EF MO ADJUST
Traverse (CD) check
EF CD ADJUST
Focus bias check
FBIAS ADJUST
Nonvolatile memory control
EEP MODE
Command transfer
MANUAL CMD
Status display
SVDATA READ
Error history display, clear
ERR DP MODE
Sled check
SLED MOVE
Access check
ACCESS MODE
Outermost circumference check
0920 CHECK
Head position check
HEAD ADJUST
Microprocessor version display
Ver@@@@@
• For details of each adjustment mode, refer to the items in "5. Electric Adjustments". For details of "ERR DP MODE", refer to the self-
diagnosis function on page 2.
• If other modes are set accidentally, press the EDIT/NO button to exit that mode.
• As items marked (X) in the "Mark" column are not used during servicing, they are not described here. If these modes are set accidentally,
press the EDIT/NO button to exit that mode. Be especially careful with items marked (!) as they will overwrite the non-volatile memory,
and as a result, the unit will not operate normally.
4-5-1. Operating the Continuous Playback Mode
1. Entering the continuous playback mode
(1) Set the disc in the unit. (Recordable discs or discs for playback only).
(2) Rotate the AMS dial and display "CPLAY MODE".
(3) Press the YES button to change the display to "CPLAY MID".
(4) When access completes, the display changes to "C1=
Note: The numbers " " displayed indicate the error rate and "ADER".
2. Changing the part to be played back
(1) When th YES button is pressed during continuous playback, the display changes as below, and the played back part can be changed.
"CPLAY MID" n "CPLAY OUT" n "CPLAY IN"
(2) When access completes, the display changes to "C1=
Note: The numbers " " displayed indicate the error rate and "ADER".
3. Ending the continuous playback mode
(1) Press the EDIT/NO button. The display changes to "CPLAY MODE".
(2) Press the § button to remove the disc.
Note: The playback start addresses for IN, MID, and OUT are as follows. To display the playback position address on the display, press
the DISPLAY/CHAR button to display "CPLAY(
IN: 40h cluster
MID: 300h cluster
OUT:700h cluster
Contents
AD=
AD=
)".
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Mark
(X)
(X)
(X) (!)
(X)
(X)
(X)
(X)
(X)
(X)
".
".