Panasonic Omnivision PV-4651, Service Manual

Page: 73 / 205

Fig. M17-3
5. When P2 and P3 are adjusted properly, there is no Envelope Drop at the beginning
or end of the track as shown in Fig. M17-4.
Fig. M17-4
6. Remove a jumper between TP6003 and +5V(TP6009).
Note:
Upon completion of the adjustment of P2 and P3, confirm the Horizontal Position of
the A/C Head by pushing the Tracking Control Up or Down Buttons alternately, using
the Infrared Remote Control Unit, to check the symmetry of the envelope. If required,
perform "HORIZONTAL POSITION ADJUSTMENT OF A/C HEAD," Page 2-11.
4.1.3.9. ADJUSTMENT OF FG HEAD GAP
Purpose :
To properly pick up the FG Signal.
Symptom of Misadjustment :
If the FG Signal is not properly picked up, Servo Operation cannot be achieved.
* Equipment Required :
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