Hitachi DV-RF7U, Руководство по обслуживанию

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Adjustment > VCR Mechanism Adjustment
b. ACE Head Tilt Adjustment
1) Play back a blank tape and observe the position of the tape at the lower flange of #8 guide post.
2) Confirm that there is no curl or wrinkle at the lower flange of #8 guide post as shown in Fig. 5-3-
5 (B).
3) If a curl or wrinkle of the tape occurs, slightly turn tilt adjustment screw (A) on the ACE head
ass’y. (See Fig. 5-3-3)
4) Reconfirm the ACE head height. (See section a. ACE Head Height Adjustment)
c. Audio Azimuth Adjustment
1) Load alignment tape (Mono scope) and play back the 7 kHz signal.
2) Connect channel-1 scope probe to the audio output.
3) Adjust screw (B) to maximize the audio level.
(See Fig. 5-3-3)
Fig. 5-3-5 #8 Guide Post Check
(A) (B)
(BAD)
Wrinkle or
Curling
(GOOD)
Lower flange