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Alpine TDA7556R - Head Replacement

Alpine TDA7556R
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f.
Replacement
of
the
head
M
E
M
O
(1)
After
removing
the
pinch
roller
spring,
remove
two
screws
@
as
shown
in
Figure
15.
(2)
Remove
solder
23
and
remove
the
head
from
the
head
P.C.Board
as
shown
in
Figure
16.
(3)
After
replacement,
mount
the
new
head
following
the
removal
steps
in
the
reverse
order.
NOTE
:
(
When
using
the
soidering
iron,
set
the
temperature
of
the
soldering
iron
to270°
+20°C
and
the
soldering
time
to
less
than
1
second.
@
Take
care
that
the
solder
is
not
loose,
that
there
is
no
shortcircuit
and
that
the
coating
is
not
damage.
@
Do
not
bring
the
soldering
iron
near
the
head
P.C.Board.
Make
sure
that
the
head
P.C.Board
is
not
lifted.
@
Fasten
the
two
screws
with
a
fastening
torque
1kg.cm.
Note
that
the
tension
of
the
head
spring
can
be
descreased
if
the
screws
are
fastened
too
strongly.
(4)
Adjust
the
height
of
the
head
as
shown
in
Figure
17,
18
and
19.
(4)
-1
Place
the
height
adjustment
gauge(Al-500)
on
the
head
base,
and
adjust
the
height
so
that
the
check
bar
fits
in
the
tape
head
guide
smoothly.
(4)
-2
When
the
check
bar
touches
the
top
(or
bottom)
of
the
tape
guide,
insert
a
spacer
(t0.1mm
or
polystider
washer
t0.13mm).
If
necessary,
remove
the
spacer.
NOTE
:
@
If
you
do
not
have
a
height
gauge
like
described
in
(4)-1,
run
the
tape
at
normal
speed
and
adjust
the
height
of
the
head
and
the
tape
head
guide
so
that
the
tape
does
not
curl.
(5)
After
having
assembled
the
complete
mechanism,
adjust
the
angle
of
the
head
with
test
tape
MTT-114NB.
(Refer
to
chapter
"Adjustment
of
the
head
angle".)
After
the
adjustment,
apply
the
screw
lock
and
fix
the
screws.
f.
Nv
FORMA
(1)
EX
FO-F-ATFUYLFERLER,
2ADAVORALET.
(M15Sh)
(2)
#2384,
Avy
FRR
SAY
FERUALET.,
(M168)
(3)
READANy
FERRER.
RUOALADPOFIBCRU
HUET.
(EM)
©
BAF
tA
t
oR.
HAF
AME270
+20C,.
KRAVEMIMLF
ETS.
@M-K¥#B.
Ya-hEORuUCIE,
@ry
KRRMIClt,
TFHESTEVTIE,
RW
Ay
FRRMICBPEPCOREBRTSICL,
@
2ADNRV
iS
kgomOD
hILT
CHOMUSCLE,
BL.
RVEMORLSENY
ENRAPARW.
INR
MOE
ZENCEBTS
IL,
(4)
\y
FBSMBtGuoet.
(B17,
18,
1988)
(4)
-1B5e7-Y
(Al-500)
EXKy
KEN-AZICOH.
Fryv7-N-PF-—TPry
FHT
FIEAZA-Aeo
ASBSKCSHCET,
(4)
-2F7-TPHT
KOE
(RUF)
CF
ry
7+
N-PY4KSMIE.
AZAN-Y-—
(tO1mMUEKY
ASL
F-—
Dyv+7—t0.138mm)
E-MANET,
Rie,
AN-—G-ERATFTITEMEDOCMHV
ESS
TRICULET.
GERIO
(4)
10S
F-VOCUBS.
F-FeMBER
SY.
F-TSA-VLIPECE<S
BSRIC
BAe
(Ay
KFRUF-TFrAy
KAT
EF)
CMBLET.
(5)
MEMTIGDAHEBARMICMALWVGKR,
FAKF—T
(MTT-114NB)
CrAv
FOREtCMBUVET.
(Ny
FERRMBAKOMBCSRULTK
AU.)
ABR.
AVOYVIEBAL,
AVYERELET.
Playback
head
Games)
ge
Spacer
fi
LOTT
(assdits
ZILLA
——
a
Al-S00gauge
Tapehead
=
Figure
1
aug
guide
igure
18
Adjustment
screw
F
ixing
screw
S
Head
P.C.Board
Figure
16
Tilting
Angle
90°+30°
1
Head
(NG)
(NG)
Maximum
_
Al-500gauge
‘i
(The
gauge
must
be
Al-500gauge
The
nosepiece
of
the
gauge
inserted
smoothly)
;
must
be
between
the
minimum
Fi
19
Figure
17
and
maximum
positions.
igure
-21-
-—22-—

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