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WM-AF59/BF59
SECTION 4
ADJUSTMENTS
PRECAUTION
1.
Clean
the
following
parts
with
a denatured
alcohol-moistened swab:
rubber belts
idlers
playback head
capstan
pinch roller
2.
Demagnetize
the playback
head
with
a head
demagnetizer.
3.
Do not use a magnetized
screwdriver for the
adjustments.
4.
After the adjustments,
apply suitable locking
compound to the parts adjusted.
5.
The adjustments should be performed with the
rated
power
supply
voltage
(3.0V)
unless
otherwise noted.
Playback Head Height Adjustment
(Note on Playback Head Replacement)
tape guide
direction
(FWD)
1
[ on]
t—
71
stl f
ea
et
1 Shag
ans
=
\
RT
a
Sa
C}
1. Turn the screw M2 x 5 so that the
— (BY line
of HEAD
GUIDE
becomes appraximately parallel
to the (A) — (A) line of TAPE GUIDE.
2. When there is a tape curl on HEAD
GUIDE @),
(By) using a mirror cassette, turn the screw M2 x 5
to eliminate the tape curl.
For example in the figure:
Co curl marked O is eliminated
by cae)
clockwise the screw M2 x 5 (right).
3. Check in the REV mode by the same way as in the
FWD mode.
4-1.
MECHANICAL
ADJUSTMENT
Torque Measurement
FWD Back
Tension
REV Back
Tension
1.5 to 4.5 g-cm
(0.02 to 0.06 oz-inch)
25 to 55 g-cm
(0.35 to 0.76 oz-inch)
CQ-102RC
1.5 to 4.5 g-cm
(0.02 to 0.06 oz-inch)
55 to 150 g-cm
(0.76 to 2.1 oz-inch)
55 to 150 g-cm
(0.76 to 2.1 oz-inch)
CQ-201B
Tape Pulling Force Measurement
(more than 1.6 oz)
TEST TAPE
WS-48A
| 3 kHz,0dB
Tape Speed Adjustment
Dolby NRHead Azimuth
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