Panasonic PV-D301 Service Manual page 88

6. To find the center of the maximum period of the envelope, move
the A/C Head Unit to confirm the limits on either side of the
maximum period.
Note:
It will be possible to confirm step 6) after performing the following
steps.
1. Exit the "I. TRACKING FIX" mode, then skip the "J. PG SHIFTER"
mode to enter other modes (except these 2). Or, close the service
mode.
2. Press the Tracking Control Up Button on the camcorder several
times (count the number of times pressed) until the maximum
envelope is reduced to 1/2.
3. Press the Tracking Control Down Button on the camcorder several
times (count the number of times pressed) until the maximum
envelope is reduced to 1/2.
4. If the number of pressing is not the same, readjust A/C Head
horizontal position.
8.2.2.1.5. CONFIRMATION OF ENVELOPE OUTPUT
Purpose:
To achieve a satisfactory picture and secure precise tracking.
Symptom of Misadjustment:
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