Lead-In Switch Position Measurement Mode; Forced Rotation Of Loading Motor - Sharp MD-R3 Service Manual

• Test Mode
1. EJECT mode
2. AUTO pre-adjustment mode
3. AUTO adjustment mode
4. RESULT sub-mode
5. RESULT mode (final adjustment)
6. MANUAL pre-adjustment mode
7. MANUAL adjustment mode
8. EEPROM setting mode
9. TEST-PLAY mode
10. TEST-REC mode
11. INNER mode
1. EJECT mode
Step No. Setting Method
Step 1 Testmode EJECT state
Step 2 Press oncethe DISPLAY/
CHARACTER button.
Step 3 Press once the DISPLAY/
CHARACTER button.
Step 4 Press once the DISPLAY
CHARACTER button.
Step 5 Press the DELETE/CLEAR button. TEMP setting of EEPROM setting
Step 6 Press the NAME/TOC EDIT button. CONTROL setting of EEPROM setting

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.
• 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 interf
• 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)
• The measurement value, set value and calculated value are indicated.
• The set value is changed manually (in servo OFF state).
• The set value (after calculation) is indicated.
• The set value is changed manually (in servo OFF state).
• RF side manual adjustment is performed.
• Focus and tracking signal offset setting is performed.
• Focus and tracking signal ATT manual adjustment is performed.
• Various coefficients of digital servo are changed manually.
• Temperature detection terminal voltage is measured, and the reference value is determined.
• Continuous playback from the specified address is performed.
• C1 error rate measurement, ADIP error rate measurement.
• Continuous recording from the specified address is performed.
• Change of record laser output (servo gain is also changed according to laser output)
• The position where the INNER switch is turned on is measured.
Max. power output state
Record power output state
Playback power output state
(Refer to TEMP setting of EEPROM)
(Refer to CONTROL setting of EEPROM)
Loosen the
three screws (A).
Mechanism Switch PWB
Figure 19
– 19 –
Remarks
Lead-In Switch
MD-R3
Display
[ _ _ E J E C T _ _ _ ]
[ x p w _ _ _ _ _ _ _ ]
[ r p w _ _ _ _ _ _ _ ]
[ p p w _ _ _ _ _ _ _ ]