Sony HCD-MD1EX - System Service Manual page 21

5-5. SELECTING THE TEST MODE
There are altogether 26 test modes, shown in the following table. Press the
[VOLUME–]
table while press the
following order;
"TEMP CHECK" n "TEMP ADJUST" n "SLED MOVE" n "CPLAY 2 MODE" n "TEMP CHECK"...
Display
TEMP CHECK Temperature compensation offset check
LDPWR CHECK Laser power check
EF MO CHECK Traverse (MO) check
EF CD CHECK Traverse (CD) check
FBIAS CHECK Focus bias check
CPLAY MODE Continuous playback mode
CREC MODE Continuous recording mode
Scurve CHECK S curve check
VERIFY MODE Non-volatile memory check
DETRK CHECK Detrack check
TEMP ADJUST Temperature compensation offset adjustment
LDPWR ADJUST Laser power adjustment
EF MO ADJUST Traverse (MO) adjustment
EF CD ADJUST Traverse (CD) adjustment
FBIAS ADJUST Focus bias adjustment
EEP MODE Nonvolatile memory control
MANUAL CMD Command transfer
SVDATA READ Status display
ERR DP MODE Error history display, clear
SLED MOVE Sled check
ACCESS MODE Access check
0920 CHECK Outermost circumference check
WRITE sure? Non-volatile memory Initialize
HEAD ADJUST Head position check
CPLAY2 MODE Continuous playback mode
CREC2 MODE Continuous recording mode
• 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
[VOLUME+/–]
3 Press the p (CD) button to change the display to "CPLAY MID".
4 When access completes, the display changes to "C =
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.
"CPLAY MID" n "CPLAY OUT" n "CPLAY IN"
2 When access completes, the display changes to "C =
Note: The numbers " " displayed indicate the error rate and "ADER".
button to the mode above. Each time the ^ (CD) button is pressed, the display changes in the
Contents
button and display "CPLAY MODE".
[VOLUME+]
button to the mode below the current mode in the
Mark
(X)
(X)
(X)
(X) (!)
(X)
(X)
(X)
(X)
(X)
(X) (!)
(X)
(X)
(X)
AD = ".
AD = ".
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