Teac X-10 - 2-20 HEAD AND TAPE PATH ALIGNMENTS; 2-20-1 HEAD ARRANGEMENT (for X-10 R); 2-20-3 ALIGNMENT PROCEDURE

X-10R/X-10 |
2-20 HEAD AND TAPE PATH ALIGNMENTS
NOTES: 1. The head and tape path alignments for the X-10R and
X-10 are the same. The procedure for the X-10R is
given below.
2. For detailed alignment principles, refer to the book
“Audio Fundamental -TAPE DECK-, 8. Mechanical
Adjustments” published by TEAC CORPORATION.
2-20-1 HEAD ARRANGEMENT (for X-10R)
Head adjusting screws
Tilt @® Azimuth
© Height and azimuth © Height and tilt
Tangency ® Tangency
Reverse
Playback
Forward Forward
Erase Record
tape guide F
Forward
Playback
SHS ser
Reverse Reverse
Record Erase
tape guide R
(4)
(1) (2) (3)
ae
tape
guide
pins
ae
TA-104!
Fig. 2-17 Head arrangement
2-20-2 HEAD REGULATION ELEMENTS
Adjust each head to satisfy each of the following:
TILT
The head surface should be paralell to the tape
guide pin surface.
AZIMUTH
—
The
gap
of
the
head
core
should
be
perpendicular
is
ae
ee]
to the tape travel.
HEIGHT
The upper core of the head should be level with Sex
the upper edge of the tape.
TANGENCY
The dotted line should be perpendicular to the |
surface of the tape.
Fig. 2-18 Head regulation elements
2-20-3 ALIGNMENT PROCEDURE
1. Visually make the tilt adjustment of each record and playback
head based on nearest tape guide pin.
2.. Make coarse azimuth adjustments of the record and playback
heads by viewing each head from in front (without tape).
3. Adjust the erase head's azimuth as seen from the front of the
head. Then adjust its tilt using an adjacent tape guide pin for re-
ference. Do this for both forward and reverse heads.
4. Temporarily adjust the height of both erase heads visually (with
no tape loaded) so that the tape guide on the erase head matches
the neighboring tape guide pin. Note that unless the three adjust-
ing screws are turned equally, the tilt and azimuth adjustments
(step 3) are likely to be disturbed.
5. Thread a TEAC YTT-8013 test tape (thickness = 35 um). With
the tape running in the forward direction, fine-adjust the height
of the forward erase head so that the upper edge of the tape is
just in contact with the upper edge of the tape guide, F, on the
head. The lower edge of the tape should just touch the lower
edge of the tape guide pin (1). See Fig. 2-19.
6. Check that the forward erase head core protrudes 0.1 mm above
the moving tape. If not, adjust its azimuth, and recheck its tilt
and height, then correct tilt and height if necessary.
7. Do exactly the same adjustment (steps 5 and 6) for the reverse
erase head. Substitute reverse play mode for forward play mode.
8. Check that, by pulling the tape away from the head assembly
then setting in either play mode, the tape guide on the erase
head has about 1 mm clearance against the pinch roller. Do this
for both the left and right sides.