Panasonic PV-L452 Service Manual page 64

slightly and equally adjust Screw A, Screw B, and Screw C on the A
/C Head Unit to achieve the sub control signal level of 500 mV±200
mV.
(Sub Control Signal level will decrease when rotating screws
clockwise, and increase when rotating screws counterclockwise.)
6.2.2.1.3. A/C HEAD AZIMUTH ADJUSTMENT
Purpose:
To adjust the position and height of the A/C Head so that it meets
the tape tracks properly.
Symptom of Misadjustment:
If the position of the A/C Head is not properly adjusted, the Audio S
/N Ratio will be poor.
1. Connect the Audio/Video Cable on the camcorder.
2. Connect the oscilloscope to audio output jack.
3. Playback the VHS-C Alignment Tape (VFMS0004H6C).
4. Adjust Screw C (Azimuth) on the A/C Head Unit so that the output
level is at maximum.
Fig. M4-1
Fig. M4-2
Fig. M5
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