Service manual

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MD-R3
• Test Mode
1. EJECT mode • TEMP setting (of EEPROM setting)
• CONTROL setting (of EEPROM setting)
• Setting of laser power (record/playback power)
2. 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 interf
3. AUTO adjustment mode • Automatic adjustment is performed. (After adjustment the grating adjustment mode is set.)
• 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).
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 offset setting is performed.
7. MANUAL adjustment mode • Focus and tracking signal ATT manual adjustment is performed.
8. EEPROM setting mode • Various coefficients of digital servo are changed manually.
• Temperature detection terminal voltage is measured, and the reference value is determined.
9. TEST-PLAY mode • Continuous playback from the specified address is performed.
• C1 error rate measurement, ADIP 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. INNER mode • The position where the INNER switch is turned on is measured.
1. EJECT mode
Step 1 Testmode EJECT state [ _ _ E J E C T _ _ _ ]
Step 2 Press oncethe DISPLAY/ Max. power output state [ x p w _ _ _ _ _ _ _ ]
CHARACTER button.
Step 3 Press once the DISPLAY/ Record power output state [ r p w _ _ _ _ _ _ _ ]
CHARACTER button.
Step 4 Press once the DISPLAY Playback power output state [ p p w _ _ _ _ _ _ _ ]
CHARACTER button.
Step 5 Press the DELETE/CLEAR button. TEMP setting of EEPROM setting
(Refer to TEMP setting of EEPROM)
Step 6 Press the NAME/TOC EDIT button. CONTROL setting of EEPROM setting
(Refer to CONTROL setting of EEPROM)
Step No.
Setting Method
Remarks Display
Lead-in switch position measurement mode
Note: Adjust the lead-in switch position to FF85 to FFD2.
1. Loosen the screw (A) x 3 pcs. which fix the mechanism switch PWB.
2. Retighten the screw, pressing the mechanism switch PWB in the arrow direction, and then measure the lead-in switch position again.
After position adjustment fix with the three screws (A). (See Fig. 19.)
Note: After tightening the two screws on the PWB apply Screw Lock.
Forced rotation of loading motor
While the display indication is test mode STOP state or EJECT state,
the loading motor can be forcibly rotated by press the JOG UP/DOWN
button.
Loosen the 
three screws (A).
Lead-In Switch
Mechanism Switch PWB
Figure 19