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Connect an oscilloscope. (Cf. Fig. 10)
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Playback the azimuth adjustment portion (8kHz, -20dB) of the test tape (QZZCFM). Adjust the azimuth adjusting screw so that the output from Lch and Rch are set to maximum. (Cf. Fig. 11)
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Adjust the azimuth by playing the test tape in reverse direction. Check the level difference when the tape is played in forward and reverse directions.
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Playback the playback gain adjustment portion (315Hz, 0dB) of the test tape (QZZCFM). Check that the level difference when the tape is played in forward and reverse directions does not exceed 1.5dB.
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After the adjustment, fasten screwlock to the azimuth adjusting screw.
(Note)
Before adjusting the head azimuth, be sure to remove the screwlock adhesive attached around the head for fine adjustments.