Sharp CD-MD3000H, Руководство по обслуживанию

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CD-MD3000H/CD-MD3000W
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3. AUTO adjustment mode
Step No. Setting Method Remarks Display
Step 1 Test mode STOP state The AUTO preliminary adjustment should have been completed. [ t s m e ]
Step 2 Press once the EQUALIZER button. AUTO adjustment menu [ A U T O _ A J S T _ ]
Step 3 Press once the TAPE REC 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
End of adjustment If adjustment is OK, Step 4.
If adjustment is NG, Step 8.
Step 4 Adjustment value output For grating adjustment [ _ C O M P L E T E _ ]
Press the TAPE REC button. STEP 5
Press the MD STOP button. STEP 2 AUTO adjustment
Step 5 Continuous playback (pit section) Confirmation of CI error [ s c ]
Continuous playback (groove section) [ a c ]
Step 6 Press the DISP/CHARACTER button. Conformation of ADIP error (High reflection disc STEP 7) [ a a ]
Press the MD STOP button. STEP 2 AUTO adjustment menu
Step 7 Continuous playback (pit section) Confirmation of Jitter [ s j ]
Continuous playback (groove section) [ a j ]
Step 8 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
2. AUTO pre-adjustment mode (Low reflection disc only)
Step No. Setting Method Display
Step 1 Test mode STOP state [ t s m e ]
Step 2 Press once the EQUALIZER button. AUTO adjustment menu [ A U T O _ A J S T _ ]
Step 3 Press once the REV PLAY button. AUTO pre-adjustment menu [ _ A U T _ Y O B I _ ]
Step 4 Press once the TAPE REC button. • During automatic adjustment changes as follows. [ : _ _ _ _ _ _ ]
HAo
→
• • • • • • • • •
→
LAO
End of adjustment If adjustment is OK, Step 5.
If adjustment is NG, Step 6.
Step 5 Grating adjustment, [ _ C O M P L E T E _ ]
adjustment value output
Press once the MD STOP button.
STEP 3 AUTO pre-adjustment menu
Step 6 Adjustment value output [ C a n ' t _ A D J . ]
Press once the MD STOP button. STEP 3 AUTO pre-adjustment menu
• : Adjustment name
Remarks
Confirmation of pickup laser power
It is possible to confirm in the record/playback mode with the aid of laser power meter. However, since the laser power meter
measurement is characterized with dispersion, obtained data are used only for confirmation.
Reference data (at room temperature 25
°
C)
Playback: 0.72
±
0.1 mW
Record: 5.5
±
0.5 mW
Note: Never see directly the laser light. Otherwise your eyes are injured.
With the pre-adjustment disc (MMD-318)
If "R/P WHICH?" appears, the mechanism and the PWB can be mismatched. Check whether the combination of the playing/
recording PWB and mechanism are appropriate.
If "R/P WHICH?" still appears, eject the disc and check as follows.
Check 1: Check the pin 100 line of IC1401 for defective soldering. Check the pin 93 line of IC1401 for short-circuit and defective
soldering (Also check the SW PWB).
Check 2: Check the pin 3 line of IC1401 for defective soldering and short-circuit with other patterns. Check that the pickup laser
is not broken.
4. AUTO AFB adjustment mode (Low reflection disc only)
Step No. Setting Method Remarks Display
Step 1 Test mode STOP state The AUTO preliminary adjustment should have been completed. [ t s m e ]
Step 2 Press the EQUALIZER button two times. AUTO FAB adjustment menu [ _ A U T _ A F B _ _ ]
Step 3 Press the TAPE REC button. The slide moves to the innermost periphery, and automatic [F A B _ ]
"PB_DISC_ _ _ " (HIGH reflection DISC)
Step 4 Adjustment value output STEP 2 AUTO adjustment [ _ _ _ _]
Press the MD STOP button.
• , , : Measurement value