Panasonic SA-DK3 Service Manual page 56

azimuth. (Shown in
azimuthwithout replacing the screws and springs, a fine
adjustment cannot be done because of the screw-locking bond
adhered to the azimuth screw and spring.
- Please remove the screw-locking bond left on the head base when
replacing the azimuth screw.
- If you wish to readjust the head azimuth, be sure to adjust with
adhering the cassette tape closely to the mechanism by pushing
the center of cassette tape with your finger. (shown in
1. Connect the measuring instrument as shown in
2. Playback the azimuth adjustment portion (8kHz, -20dB) of test tape
(QZZCFM). Adjust the azimuth adjusting screw until the outputs of
the L/R-ch are maximized. (Refer to
difference in the peak level between the left and right channels
does not exceed 0.5dB.
3. Perform the same adjustment in reverse playback mode. /
Checking of the level difference forward and reverse directions
4. Playback the playback gain adjustment portion (315Hz, 0dB) of
test tape (QZZCFM). Check if level difference between forward and
reverse direction is within 1.5dB.
5. After the adjustment, apply screwlock to the azimuth adjusting
screw.
Fig.1 ). / Even if you wish to readjust the head
Fig.1
Fig.2
56
Fig.3
Fig.4 ) / Make surethat the
Fig.2 )
.