Denon DR-M22 - Page 13

eer
(2)
Adjusting
Tilt
Angle
1) Set the M-300 Too! Plate on the Mechanism Unit and
then place the M-300 Tool Grip on the R/P Head, and
check the Tilt Angle between M-300 Tool Plate and
M-300 Tool Grip. If the M-300 Tool Grip is tilting
toward the front, loosen Tilt with nut (311). If the
M-300 (Tool Grip) is tilting toward the rear, tighten it.
Adjust the Tilt Adjustment nut (311) until the M-300
Tool Grip becomes parallel with the M-300 Tool Plate.
2) ‘If the Tilt Angle is adjusted more than once, height
Adjustment may slip. Always make sure to check
height adjustment. If height has slipped, adjust it
again. After adjustment, fix screw.
BN Tilt Angle
Tool grip
Tool grip E~ Tool Plate
Tool Plate
Tilt Angle
(3) Azimuth adjustments
Play
back
the
TEAC
MTT-114
test
tape.
Turn
the
azimuth
adjustment
nut
and
adjust
so
that
A
of
the
resurge
wave
form
is
maximum
and
B
is
minimum.
After
the
azimuth
adjustments,
re-check
the
head
height
with
the
M-300
to
make
sure
the
height
has
not
deviated.
MTT-114
“After the adjustments, apply anaerobic adhesive on
the positions indicated in the diagram.
Anaerobic adhesive
5. Adjustment and Replacement of Erasing Head
(15)
(1) Height Adjustments
Set the M-300 Too! Plate on the mechanism unit. Us-
ing a surface measure of 3.8 mm from the M-300 Tool
Grip,
turn
adjustment
nut
(311)
and
(171)
and
adjust
the
height
of
Erasing
Head’s
center
to
coincide
with
the
center
of
the
M-300
Tool
Grip.
After
adjustment,
place
the
M-300
Tool
Grip
on
the
Erasing
Head,
check
to
see
that
the
M-300
Tool
Plate
and
the
M-300
Tool
Grip
are
parallel,
and
that
the
Tilt
Angle
has
not
changed.- Lock after adjustment.
Tilt Angle Adjustment
Set the M-300 Tool Plate on the mechanism unit.
Place
the
M-300
Tool
Grip
on
the
Erasing
Head,
and
check
the
gap
between
the
M-300
Too!
Plate
and
the
Tool
Grip.
If
the
M-300
Tool
Grip
is
tilting
toward
the
front,
loosen
the
Tilt
adjustment
nut
(311).
If
it
is
tilting toward the rear, tighten it and adjust the Tilt
adjustment
nut
(311)
until
the
M-300
Tool
Grip
be-
comes
parallel
with
the
M-300
Tool
Plate.
(2
—
CAUTION: After adjusting the Tilt Angle, height adjust-
ment may sometimes be warped. Recheck
height adjustment. If it is warped, readjust
the height. After adjusting, fix nuts (311)
and (171).
(3) Erasing Head Replacement
Erase Head may be replaced after removing nuts
(311) and (171) which affix it to the deck mechanism.
After replacement, adjust the height and the Tilt angle.
3.8mm
Tilt Angle
6.
Height
Adjustment
of
the
Tape
Guide
103
Set
the
M-300
jig
plate
onto
the
mechanism
unit
and
ad-
just
the
height
by
rotating
the
height
adjustment
nut
311
so
that
the
3.8mm
section
of
the
M-300
jig
can
pass
through
without
contacting
the
tape
guide
section
of
tape
guide
103.
7. Checking the Take-up Torque
Load
the
cassette
type
torque
meter.
Check
to
make
sure
that
the
torque
meter
average
reading
is
within
50
~
90
g-cm
during
playback.
If
it
is
not
within
this
range,
creck
the
voltage
(3.1V
+
0.3V)
of
the
reel
motor.
If
the
voltage
is
low,
the
torque
will
be
weak:
if
it
is
high,
the
torque
will
be
strong.
In
addition,
check
for
ree!
thrust
movennent
in
section
8.
S43.