- Reverse-mode selector switch:
- Tape edit: NORMAL
- Record timer: OFF
- Make sure head, capstan and press roller are clean.
- Judgeable room temperature 20 ± 5 °C (68 ± 9°F)
- Measuring instrument
- EVM (Electronic Volmeter)
- Digital quency counter
- Test Tape
- Head azimuth adjustment (8 kHz, -20 dB); QZZCFM
- Tape speed gain adjustment (3 kHz, -10 dB); QZZCWAT
- Playback gain adjustment (315 Hz, 0 dB); QZZCFM
- CrO2 tape, QZZCRX
12.1.1. Head Azimuth Adjustment (Deck 1/2)
Caution:
- Please replace both azimuth adjustment screw (RHE5152ZB) and
springs (RM0331) simultaneously when readjusting the head
azimuth. (shown in Fig. 2) Even if you wish to readjust the head
azimuth without replacing the acrews and springs, a fine
adjustment 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 Fig. 3)
1. Playback the azimuth adjustment portion (8 kHz, -20dB) of the test
tape (QZZCFM) in the forward play mode. Vary the azimuth
adjustment screw until the output of the R-CH (PB OUT-R) are
maximized.
2. Perform the same adjustment in the reverse play mode.
3. After the adjustment, apply screwlock to the azimuth adjusting
screw.
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