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3-6-20
A/C Head Height Confirmation
Specification A=0.95 X Amax or more
C1, C2 = 1.8V or more
TP101 CUE AUDIO(CUE:H1)
Test Point
TP30 CTL(SERVO:F1)
Adjustment
Screw B, H (A/C Head)
Mode
PLAY
Tape
VFM3580KM (No.1)
M. EQ.
Oscilloscope
Tool
VFK1150,VFK1190(Hex Wrench)
1.
Playback the alignment tape CUE audio 6
kHz portion.
2.
Connect a scope to TP101 and raise the
A/C head or push down it to confirm the
CTL level is not increased.
3.
If it is increased, slightly adjust the "A/C
Head Height Adjustment" and confirm the
CTL level is correct.
4.
If A/C Head Height is changed the azimuth
is changed also. Therefore A/C Head
azimuth must be adjusted and confirm
alternately.
5.
When A/C Head Height is fixed, tilt is
changed by tightening screw H and the
height
is
changed.
confirmation must be done after tightening
screw H.
Therefore
Height
Down Part
Raise Part
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