Sharp MD-X60H Service Manual page 21

2. Test mode
Test mode setting method
1. Holding down the POLE POSITION button and MD
(State A is changed to state B .)
2. Insert the playback disc 1 (high reflection disc) or recording disc 2 (low reflection disc). (State C is set.)
Thus, the test mode state is set.
A tsm e
TEST STOP state
B EJECT
TEST
C AUT YOBI
TEST
Entering the specific mode
Whenever the CD (PLAY/PAUSE) button is pressed, the mode is changed.
AUTO pre-adjustment
EEPROM setting
Cancel of TEST mode
When the ENTER button is pressed, data is written in EEPROM, and then the TEST mode is canceled. (Mode where automatic
adjustment is not performed)
To restore the usual state once reset.
When the data of EEPROM was changed or the preliminary adjustment was performed again, be sure to press the ENTER
button to write data in the EEPROM.
(Data is written in the EEPROM by pressing the ENTER button.)
* Be sure to ascertain "COMPLETION" by pressing the MD PLAY button in the AUTO preliminary adjustment mode before
pressing the ENTER button.
• Test Mode
1. EJECT mode
2. AUTO pre-adjustment mode
3. AUTO adjustment mode
• RESULT sub-mode
• RESULT mode (final adjustment)
• MANUAL pre-adjustment mode
• MANUAL adjustment mode
4. EEPROM setting mode
5. TEST-PLAY mode
6. TEST-REC mode
7. INNER mode
: TEST MODE represents version of MD microcomputer.
(When the MD
is restored. To restore C again, press the CD
button.)
AUTO adjustment
MANUAL adjustment
• TEMP setting (of EEPROM setting)
• CONTROL setting (of EEPROM setting)
• Setting of laser power (record/playback power)
• Automatic pre-adjustment is performed. (After adjustment the grating adjustment mode is set.)
• The adjustment value is output with the aid of system controller interface.
• Automatic adjustment is performed.
• The adjustment value is output with the aid of system controller interface.
• Continuous playback is performed. (Error rate indication, jump test)
•
Because the data of ROM is rewritten in this mode, set malfunction may occur. Therefore do
not set this mode since it is not necessary for the service.
• Various coefficients of digital servo are changed manually.
• Continuous playback from the specified address is performed.
• C1 error rate measurement, ADIP error rate measurement.
• Continuous recording from the specified address is performed.
• The position where the INNER switch is turned on is measured.
(PLAY/PAUSE) button, press the POWER button.
(STOP) button is ressed in the C state, the indication A
RESULT Pre-adjustment
MANUAL pre-adjustment
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MD-X60H
(PLAY/ PAUSE)
RESULT