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i
k
li-
Fig.
2-9.
Front
subcha,ss/s
removal
(Side
view)
F
ig.
2-
I
0.
F
ront
su
bchassls
remova
I
2.5.
PRINTED
CIRCUIT BOARD
REMOVAL
I
.
Remove
the
front
subchassis
as
described
in
Pro-
cedure
2-4.
2.
Remove
the
four
screws
shown
in
Fig.
2-l
L
This
frees
the printed circuit
board.
Fig.
2-l
l.
Printed
circuit board
removal
2.6.
SWITCH REPLACEMENT
Pushbutton
Switch
(a-key)
l.
Remove
the
printed circuit
board
as
described in
Procedure
2-5.
2.
Remove
the switch bracket by
removing
the
two
screws
(P2.6
x 4)
shown
in
Fig.
2-12.
3.
Remove
the
screw
(P
2.6
x
14)
from the
bottom
as
shown
in
Fig.
2-12.
4. With a
soldering
iron
having a solder sucking
tip,
clean
the
solder
from
each
lug
of
the
switch.
5. Install
a new
one.
-
bracket
P
2.6x
l4
Fig.
2-12.
4-key
pushbutton switch
replacement
E,
E-
\=
5
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