Omnivision PVQ-130W Service Manual page 87

7. Remove the jumper after completing the adjustment procedure.
7.2.2.3.2. AUDIO CONTROL HEAD TILT ADJUSTMENT
Purpose:
To confirm that the tape runs smoothly. In particular, confirm that the tape
properly picks up the Audio Signal at the upper part of the head and the Control
Signal at the lower part of the head.
Symptom of Misadjustment:
If the tilt of the Audio Control Head is poorly adjusted, the tape will eventually be
damaged. An intermittent Blue screen may be seen in Playback.
1. Play back a T120 cassette tape and check that the tape travels smoothly between
the upper and lower guides of the P4 post.
2. If necessary, adjust Black Screw (B) clockwise until the tape begins to curl at the
lower edge of the P4 post. Then adjust the screw counterclockwise until the
curling is eliminated.
Fig. M5
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