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176
16
OPTION INSTALLATION
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N
UT-121
DIGITAL
UNIT
INSTALLATION
N
FL-430/FL-431
1
ST
IF
FILTER
INSTALLATION
The optional filters, FL-430
1ST
IF
FILTER
(6
k
H
z
)
or FL-
431
1ST
IF
FILTER
(3
k
H
z
)
provides 6 or 3 kHz filtering to
reduce interference from strong nearby signals.
q
Remove the top and bottom covers as shown on
page 174.
w
Install the FL-430 or FL-431 as shown to the right.
s4HECONNECTORSONTHE)#AREMARKEDFORTHEAP
-
propriate filter.
s%NSURETHE&,OR&,ISINSTALLEDCORRECTLY
e
Return the top and bottom covers to the original po-
sitions.
After installation, a 6 kHz or 3 kHz filter width can
be used. See page 74 for details.
FL-431
(3
k
H
z
)
FL-430
(6
k
H
z
)
The optional UT-121
DIGITAL
UNIT
is required for the DV
mode operation.
q
Remove the top and bottom covers as shown on
page 174.
w
Remove the upper two screws from the front panel
(
q
).
e
Loosen the lower two screws on the front panel
(
w
), then slowly fold down the front panel in the
direction of the arrow (
e
).
r
Remove the protective paper from one side of the
double sided adhesive sheet (
r
), then place the
sheet on the panel, as shown below. (
t
).
t
Remove the other side of the protective paper, and
install the UT-121 as shown below (
y
).
y
Return the front panel, top and bottom covers to
their original positions.
Top
Bottom
Rear
Front
Top
Bottom
Rear
Front
q
Remove
UT-121
q
Remove
w
Loosen
r
w
Loosen
t
e
y