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MDX-F1
11
CIRCUIT DESCRIPTION
• 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)
4. RESULT sub-mode
¥ The measurement value, set value and calculated value are indicated.
¥ The set value is changed manually (in servo OFF state).
3. AUTO FOCUS BIAS adjustment
¥ Focus bias adjustment is performed auto matically.
5. RESULT mode (final adjustment)
¥ The set value (after calculation) is indicated.
¥ The set value is changed manually (in servo OFF state).
6. 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.
7. MANUAL adjustment mode
¥ Focus and tracking signal ATT manual adjustment is performed.
8. EEPROM setting mode
¥ EEPROM setting
9. TEST-PLAY mode
¥ Continuous playback from the specified address is performed.
¥ C1 error rate measurement.
10.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)
11. EJECT mode
¥ TEMP setting (of EEPROM setting)
1. AUTO pre-adjustment mode (Low reflection disc only)
Step No.
Setting Method
Remarks
Display
Step 1
Testmode STOP state
[ t s m
e
]
Step 2
Press once the MD REC button. AUTO pre-adjustment menu
[ AUT_ YOBI_ _ _ ]
Step 3
Press once the MD PLAY button. The slide moves to the innermost periphery, and automatic
[
: _
_
_ _ _ _ _ ]
pre-adjustment is started.
¥ During automatic adjustment
changes as follows.
HAo®RFg®SAg®SBg®PTG®PCH®GTG®GCH®RCG®
SEG®RFG®SAG®HAO®HEO®TCO®LAO
End of adjustment
If adjustment is OK, Step 4.
If adjustment is NG, Step 5.
Step 4
Grating adjustment,
[ _ C O M P L E T E _ ]
adjustment value output
Press once the MD STOP button. STEP 2
Step 5
Adjustment value output
[ AUT YOBI ]
Press once the MD STOP button. STEP 2 AUTO pre-adjustment menu
¥
: Adjustment name,
: Address
2. AUTO adjustment mode
Step No.
Setting Method
Remarks
Display
Step 1
Testmode STOP state
[ t s m
e
]
Step 2
Press the ENTER button two times. AUTO adjustment menu
[ A U T O _ A J S T _ ]
Step 3
Press once the MD PLAY button. The slide moves to the innermost periphery, and automatic
[
: _ _ _ _ _ _ ]
adjustment is started.
¥ In case of high reflection disc
changes as follows.
PEG®HAG
¥In case of low reflection disc
changes as follows.
PEG®LAG®GCG®GEG®LAG
End of adjustment
If adjustment is OK, Step 4.
If adjustment is NG, Step 7.
Step 4
Adjustment value output
[ _ C O M P L E T E _ ]
Press the MD PLAY button.
STEP 5
Press the MD STOP button.
STEP 2
Step 5
Continuous playback (groove section)
[ a
c
]
Step 6
Press the MD STOP button.
STEP 2 AUTO adjustment menu
Step 7
Adjustment value output
[ C a n ' t _ A D J . ]
Press the MD STOP button.
STEP 2 AUTO adjustment menu
¥
: Adjustment name,
: Measurement value,
: Address