53
2-2. How to Exit the MD Test Mode
1) Press the “MD EJECT” button and remove the disc.
2) Disconnect the AC plug from the power outlet.
*
If the machine exits the MD test mode by any methods other than the procedure described above, the machine may operate
abnormally when the POWER is turned on next time. If this happens, disconnect the AC plug.
2-3. Operation Check Mode
1) Checks after the test mode has started up
The following playback audio circuits can be checked.
•
The circuits that can be checked: ..................... DAC, LINE AMP and HEADPHONE AMP
•
Output level: .................................................... 1 kHz, -21 dB
2) Switch status check
The ON/OFF states of the respective switches on the machine and mechanism can be checked on the display.
3) How to Switch to Servo Standby Mode
When the MD test mode has been established, the mode changes to the servo standby mode and “ALL SV OFF” is displayed
by pressing the
9
button. The various check modes can be entered from this mode. Pressing the
9
button during each
operation returns to “ALL SV OFF”.
4) Checking the Sled Operation
The operation of the sled motor and pickup can be checked by pressing the
6
(to outermost track) and
5
(to innermost
track) buttons in the “ALL SV OFF” state. “T.SLED FWD” appears while moving to the outermost track and “T.SLED
RVS” appears while moving to the innermost track.
5) Checking the Laser Output
The laser power output level is switched each time the “MD EDIT” button is pressed when “ALL SV OFF” appears and the
operation stops. The laser power output level is repeatedly changed in the order of OFF LASER READ
™
LASER 1/2
™
LASER WRITE. The indications are as follows.
9
button to return the display to “ALL SV OFF”.
6) Checking the Operation of OWH (Over Write Head)
The OWH operation can be checked in the loading-completed state.
“MD
CD” button ............. OWH DOWN
MD EJECT” button ...... OWH UP
Note:
Do not move down the OWH while using a high reflection disc (CD).
Switch Name
Switch State
Indication on display
Usable disc
REC PROTECT
When the write-protection tab of a disc is closed to ON
ROCK
Disc for record/playback
REFRECT
When the high reflection disc (CD) is used
POP
Disc for playback only
INNER
When the pickup is at the innermost
JAZZ
—
track (when the LIMIT switch is ON)
A L
S V
L
OF F
MODE
Indication on display
ALL SV OFF
T-BASS
LASER READ
T-BASS
LASER 1/2
T-BASS
LASER WRITE
T-BASS
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