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DM-3090
24
ADJUSTMENT
1. Preparation for adjustment
Test disc
MD SECTION
Type
Test disc
1
High reflection disc TGYS1 (SONY)
2
Low reflection disc
Recording minidisc
3
Head Adjusting transparent
2. Test mode
Test mode setting method
1. Holding
After 3sec, take your hand off the RESET button first.
down the ENTER button and
(PLAY/PAUSE) button, press the RESET button.
(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.)
(During disc loading : display LOADING)
Thus, the test mode state is set.
A tsm
e
: TEST MODE
represents version of MD microcomputer.
TEST
STOP state
(When the
(STOP) button is ressed in the C state, the indication A
is restored. To restore C again, press the ENTER button.)
B EJECT
TEST
C AUTO
TEST
Entering the specific mode
Whenever the
button
ENTER
is pressed, the mode is changed.
AUTO pre-adjustment
AUTO adjustment
RESULT SUB
RESULT
EEPROM setting
MANUAL adjustment
MANUAL pre-adjustment
• Canceling the test mode
When the POWER button is pressed, the test mode is canceled, and the POWER OFF state is set.
• Test Mode
1. AUTO pre-adjustment mode
• 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.
2. AUTO adjustment mode
• 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)
3. RESULT sub-mode
• The measurement value, set value and calculated value are indicated.
• The set value is changed manually (in servo OFF state).
4. RESULT mode (final adjustment)
• The set value (after calculation) is indicated.
• The set value is changed manually (in servo OFF state).
5. MANUAL pre-adjustment mode
• RF side manual adjustment is performed.
• Focus and tracking signal ATT manual adjustment is performed.
• Focus and tracking signal offset setting is performed.
6. MANUAL adjustment mode
• Focus and tracking signal ATT manual adjustment is performed.
7. EEPROM setting mode
• This mode does not use on the occasion of service.
8. TEST-PLAY mode
• Continuous playback from the specified address is performed.
• C1 error rate measurement, ADIP error rate measurement.
9. TEST-REC mode
• Continuous recording from the specified address is performed.
• Change of record laser output (servo gain is also changed according to laser output)
10. EJECT mode
• TEMP setting (of EEPROM setting)
• CONTROL setting (of EEPROM setting)
• Setting of laser power (record/playback power)
DM-3090(K)
COVER
97.11.29
0:20
AM
y [ W
35
Содержание DM-3090
Страница 31: ...DM 3090 31 PARTS DESCRIPTIONS ...