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5-5.
SELECTING THE TEST MODE
There are altogether 26 test modes, shown in the following table. Press the
[]
button to the mode below the current mode in the
table while press the
[VOLUME–]
button to the mode above. Each time the
^
(CD) button is pressed, the display changes in the
following order;
“TEMP CHECK”
n
“TEMP ADJUST”
n
“SLED MOVE”
n
“CPLAY 2 MODE”
n
“TEMP CHECK”…
Display
TEMP CHECK
LDPWR CHECK
EF MO CHECK
EF CD CHECK
FBIAS CHECK
CPLAY MODE
CREC MODE
Scurve CHECK
VERIFY MODE
DETRK CHECK
TEMP ADJUST
LDPWR ADJUST
EF MO ADJUST
EF CD ADJUST
FBIAS ADJUST
EEP MODE
MANUAL CMD
SVDATA READ
ERR DP MODE
SLED MOVE
ACCESS MODE
0920 CHECK
WRITE sure?
HEAD ADJUST
CPLAY2 MODE
CREC2 MODE
Contents
Temperature compensation offset check
Laser power check
Traverse (MO) check
Traverse (CD) check
Focus bias check
Continuous playback mode
Continuous recording mode
S curve check
Non-volatile memory check
Detrack check
Temperature compensation offset adjustment
Laser power adjustment
Traverse (MO) adjustment
Traverse (CD) adjustment
Focus bias adjustment
Nonvolatile memory control
Command transfer
Status display
Error history display, clear
Sled check
Access check
Outermost circumference check
Non-volatile memory Initialize
Head position check
Continuous playback mode
Continuous recording mode
Mark
(X)
(X)
(X)
(X) (!)
(X)
(X)
(X)
(X)
(X)
(X) (!)
(X)
(X)
(X)
• For details of each adjustment mode, refer to the items in “6. Electrical Adjustments”. For details of “ERR DP MODE”, refer to the self-
diagnosis function on page 2.
• If other modes are set accidentally, press the
^
(CD) 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 acciden-
tally, press the
^
(CD) button to exit the 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.
5-5-1. 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
Press the
[/–]
button and display “CPLAY MODE”.
3
Press the
p
(CD) button to change the display to “CPLAY MID”.
4
When access completes, the display changes to “C =
AD =
”.
Note:
The numbers “ ” displayed indicate the error rates and “ADER”.
2. Changing the part to be played back
1
When the
p
(CD) button is pressed during continuous playback, the display changes as below, and the played back part can be
changed.
2
When access completes, the display changes to “C =
AD =
”.
Note:
The numbers “ ” displayed indicate the error rate and “ADER”.
“CPLAY MID”
n
“CPLAY OUT”
n
“CPLAY IN”
Summary of Contents for HCD-MD1EX - System
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