Pioneer PDR-F10, Руководство по обслуживанию

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PDR-F10
[Procedure]
1. Press the CX key and shift to the Focus Bias Adjustment.
2. Press the
3
x3 key to perform the average process.
\
"DIG SEG." disappears on the FL display when completed.
3. Move the Pickup to center of the disc by pressing the CHAPTER key. (
4 ¢
)
4. Monitor the jitter value and set a CD disc. (use the jitter meter)
5. Press the
2
x3 key to FOCUS IN.
6. Press the PLAY key to turn the SPINDLE. (CAV)
7. Press the PAUSE key to TRACKING ON. (EFM CLV)
8. Adjust the SCAN key so that jitter value becomes minimum.
9. Press the SEARCH key to register the adjustment.
\
Shift to the RFDC Level Adjustment automatically.
10. 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
11. Press the STOP key to stop the unit.
Caution:
In this adjustment, shift to the RFDC Adjustment when pressing the SEARCH key before step 9, and there
is it when completed in normal on the indication.
However, must not omit operation of steps 7 from 5 because RFDC is not adjusted to normal when
pressing the SEARCH/DISP key with the state that steps 7 from 5 are not executed.
• The arbitrary value that "
∗ ∗
" modified it by adjustment.
• "?" is not displayed in the point that selected an item with the CX key, and blink when changes setting value by the input
of the CHAPTER key. Press the SEARCH key to register the setting value, and disappear the FL indication that the setting value is
stored in the EEPROM by normal.
6.6.9 Focus Bias Adjustment
Minimize jitter value
CN102-pin 2 (RF) Test Point
Adjustment 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 disks.
Purpose
Symptom when Out of Adjustment
Adjustment method FL Indication
CN102
RF
VC
2
6
10: 1 prove Oscilloscope