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Denon DR-F7 - Page 15

Denon DR-F7
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+
Only
the
height
adjustment
is
necessary;
no
tilt
ajust-
ments
are
required,
+
When
adjusting
the
height,
make
sure
the
R/P
HEAD
is
not
tilted
by
turning
the
azimuth
adjustment
nut,
and
checking
with
your
eyes.
+
Never
allow
the
M-300
(tool
grip)
to
hit
the
tape
contact
surface
of
the
R/P
HEAD
strongly.
It
may
scratch
the
surface.
+
After
the
height
adjustments,
replace
the
mechanism
unit
to
the
chassis
and
re-connect
all
connectors.
(2)
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.
MIT-U4
*
After
the
various
adjustments,
apply
anaerobic
adhesive
on
the
positions
indicated
in
the
diagram.
anaerobic
adhesive
anaerobic
adhesive
5.
Replacing
the
ERASE
HEAD
40.
The
ERASE
HEAD
can
be
replaced
by
removing
the
2E
ring
138
,
which
holds
the
detecting
arm
46
,
and
the
two
ERASE
HEAD
holding
screws
119.
6.
Adjusting
the
ERASE
HEAD
Height
After
the
washers
149
and
151
are
properly
placed
as
mentioned
below,
check
the
height
of
the
ERASE
HEAD
tape
guide
section
using
the
M-300
(tool
grip).
(38)
2E-
Ring
vO>
uw
Mo
e
oo
*
The
above
diagram
illustrates
the
placement
of
the
various
washers
under
normal
conditions.
If
the
M-300
indicates
that
height
adjustments
are
required,
reverse
the
position
of
washer
151
and
lower
side
washer
149
,
or
change
the
thickness
of
the
upper
side
washer
149
to
0.13
mm
and
adjust
the
various
washers
so
that
the
total
thickness
becomes
the
same.
In
this
case,
make
sure
that
a
poly
washer
is
always
placed
above
and
be-
low
the
boss
section
of
the
E.
HEAD
bracket
41.
7.
Adjusting
the
Gap
Between
the
HEAD
PLATE
and
the
ERASE
HEAD
Bracket
During
Playback
Adjust
the
attachment
position
of
the
ERASE
HEAD,
making
sure
the
gap
between
the
ERASE
HEAD
bracket
and
the
HEAD
PLATE
is
0.3-0.7
mm.
head
plate
0.3
~
0.7
mm
Ε
HEAD
bracket
8.
Adjusting
the
Gap
Between
the
Detecting
Arm
46
and
the
ERASE
HEAD
Bracket
With
a
cassette
loaded,
turn
screw
104 and
adjust
to
that
the
gap
between
the
detecting
arm
and
the
ERASE
HEAD
bracket
is
0.5-0.8
mm
during
playback.
After
adjusting
apply
anaerobic
adhesive
as
shown
in
the
diagram.
E
HEAD
bracket
detecting
arm
c
as
adjustment
screw
ar

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