Akai X-2000SD - Page 15

0.125~0,I5mm
; 0£0,05mm
Fig. 2
Fig. 5
Fig. 3
f=g=0.2mm~0.3mm
7. HEAD ADJUSTMENT
(A) Reel
a)
b)
c)
d)
Azimuth alignment of the Recording/Play-
back Head (See Fig. 2)
Playback an Ampex Alignment Tape
(8,000 Hz) at a tape speed of 7-1/2 ips and
turn screw (a) until the Line Out-Put Level
reaches Maximum.
Recording/Playback Head Height Alignment
(See Fig. 2 and 3)
Adjust head height by turning screws (b) and
(c).
Angle of Bias Head (See Fig. 2 and 4)
Unfasten the two Bias screws and move the
Bias Head by hand until the center line (d)
of the Bias Head and the tape is at a 90°
angle. Fasten screws.
Clearance of the Bias Head (See Fig. 5)
Unfasten the two Bias Head screws and.
move the Bias Head by hand until the
clearance (f) and (g) reaches 0.2 to 0.3 mm.
Then fasten screws.
Note: If the clearance (f) and (g) becomes
less than 0.2 to 0.3mm, the Fre-
quency Characteristic will be too low,
but Distortion will decrease. If the
clearance (f) and (g) becomes more
than 0.2 to 0.3mm, the Frequency
Characteristic will be too high, but
Distortion will increase.
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