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It paid to find this Service Manual, couldn't find it anywhere else. Exactly what I wanted. Received within 24 hours.
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Complete manual with clear schematic diagrams and printed circuit board layouts of two variants of the headset and the transmitter an old and a new version.
Also shows how the headset and the transmitter is opened and how transmitter and receivers can be adjusted and where to measure.
I had no problems to repair the headset using this service manual.
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Excellent printing quality. A complete and very useful manual with all details.
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This is a great site. I placed my order and by the next am it was available for download. Had some problems with some missing copy on some pages. Once I brought the error to the OMC's attention, the issue was resolved. I'll come back again.
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Mi spiace per non poter scrivere in inglese... ma sono veramente soddisfatto del servizio offerto. Grazie..!!
PDR-609
6.7.13 Focus Bias Adjustment
Test Point Adjustment Value Purpose Symptom when Out of Adjustment CN102-pin 2 (RF) Minimize jitter value Optimizing DC offset voltage of focus servo loop circuit including pickup. Focus-in does not function, sound pauses, bad RF wave shape, or incapable to playback some discs. Adjustment method [Procedure]
1. Move the Pickup to center of the disc by pressing the SCAN key. ( 1 ¡ ) 2. Monitor the jitter value and set a CD disc. (use the jitter meter) 3. Press the FINALIZE key to FOCUS IN. 4. Press the PLAY/PAUSE key to turn the SPINDLE. (CAV) 5. Press the PLAY/PAUSE key to TRACKING ON. (EFM CLV) 6. Adjust the JOG key so that jitter value becomes minimum. 7. Press the ENTER key to register the adjustment. \ Shift to the RFDC Level Adjustment automatically. 8. Adjustment is completed automatically. \ Each display the reason that became abnormal when adjustment was not completed normally. When did not converge in limit of adjustment possibility (when it became the lowest level) When failed in writing to the EEPROM 9. Press the STOP key to stop the operation.
FL Indication
Caution:
In this adjustment, shift to the RFDC Adjustment when pressing the ENTER key before step 7, and there is it when completed in normal on the indication. However, must not omit operation of steps 5 from 3 because RFDC is not adjusted to normal when pressing the ENTER key with the state that steps 5 from 3 are not executed.
CN102
RF 2 10: 1 prove VC 6 Oscilloscope
How to execute the automatic adjustment once again after the automatic adjustment is completed: 1. Press the STOP key to stop the disc rotation. (servo OFF) 2. Press the AUTO/MANUAL key and shift to the Focus Offset adjustment. 3. Press the RECORD key to start the automatic adjustment. Adjust from "6.7.11 automatic Adjustment Start" to "6.7.13 Focus Bias Adjustment". Press the STOP key when stops execution of the automatic adjustment on the way and stop processing. Then return to the state of "6.6.10 Preparations" and stop the operation.
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