JRC NRD-515 Instruction Manual
NRD-515
OPTION
1+2
INSTRUCTION
MANUAL
List
of
con
tents
Installation
and
adjustment
procedures
page
1+2
User's
manual
page
3+4
Option
l ,
circuit
diagram,
dwg
004-PCB-300-A-8409
page
5
option
l ,
component
location,
dwg
002-PCB-300-A-8409
page
6
Option
2,
circuit
diagram,
dwg
004-PCB-301-A-8409
page
7
Option
2 ,
component
location,
dwg
002-ptB-301-A-8409
page
8
Option
1+2,mechanical
installation,
dwg
003-NRD-OOI-A-8409
page
9
Option
2,
electrical
installation,
dwg
003-PCB-301-A-8409
page
10
Option
2 ,
electrical
installation,
dwg
003-NRD-002-A-8409
page
11
Option
7.
,
wiring
diagram,
dwg
003-NRD-003-A-8409
page
12
l
PaS2
Nate:
Tnfa
an
page
2
Nate:
Inf
an
Page
2
Nate:
Infa
an
Page
2
l)
2 )
3 )
4)
5)
6)
7)
8)
9)
10)
l)
INSTALLATION
AND
ADJUSTMENT
PROCEDURES
Remove
the
top
cover
of
the
NRD-515.
With
the
Front
panel
facing
you,
drill
two
hales
on
the
right
ide
of
the
NRD-515
frame,
as
indi-
cated
on
drawing
003-NRD-002-A-8409
(paqe
9
).
Remove
the
following
compnnents
from
the
mein
circuit
board:
TR22,
C280,
C281,
C282,
C283,
C284,
L123
by
cutting
the
leads
by
means
oF a
cutter.
003-PCB-301-A-8409
(pagelO)
.
lnstall
option
l
(plug-in
unit)
as
indicated
on
draw-
ing
003-PCB-301-A-8409
(pageiO).
Install
option
2
as
indicated
on
drawing
003-NRD-
001-A-8409
(page
9).
By
means
of
a
lowpower
soldering
iron,solder
the
wires
and
coax
cables
from
option
2
to
the
main
print,
the
VFO
and
monitor
switch,
as
indicated
on
drawing
003-
PCB-301-A-8409
(page
10).
Mount
the
top
cover
of
the
NRD-515,
without
screws.
Remove
the
bottom
cover
of
the
NRD-515
and
solder
the
coaxial
cables
E
and
F,
as
indicated
on
drawing
003-NRD-002-A-8409
(page
Il).
This
completes
the
installation
of
the
2
options.
Mount
the
bottom
cover
of
the
NRD-515.
ADJUSTMENT
PROCEDURE
(option
2)
Remove
the
top
cover
of
the
NRO-515
and
switch
the
power
on.
With
the
bandwidth
switch
on
AUX;
tune
the
receiver
around
00.0
kHz,
until
you
get
the
highest
S-meter
reading
(between
59 + 40
dB
to
59 + 60
dB).
a)
Adjust
L3
on
max
S-meter
reading.
b)
Adjust
L9
on
max
S-meter
reading.
2)
This
~ompletes
the
adjustment
of
the
2
optjons.
3)
Milllnt
the
top
cover.
Instead
of
adjusting
the
receiver
as
explained
in
l)
you
may
choose
a
weIl
known
station
with
Info.
stable
"S"
readings
and
adjust
for
max
S-meter
adjustment
reading.
With
each
option
N02 we
supply
the
mounting
hard-
Info.
ware.
The
Option
N02 may
be
installed
using
the
drilling
screwholes
on
the
main-board.(right
side)
Info.
In
case
you
want
to
save
the
components
that
have
removal
to
be
removed
we
advise
you
to
unsolder
them.
General
comment:
The
installation
of
the
Option
N02
requires
no
technical
radio
skills.
However,
we
believe
the
installer
should
have
same
basic
saldering
skill~.
Page
'
U 5 E R
'5
M A N U A L
The
option
l + 2
from
ESKA
ELEKTRONIK
A/S
greatly
improves
the
selectivity
and
signal-to-noise
ratio
of
your
NRD-515
-
providing
-
at
the
same
time
- a
superb
PLL-ECSS
reception.
Selectivities
The
comhination
of
option
l + 2
provides
you
with
the
fol-
lowing
selectivities:
Monitor
switch
on
6/60
dB
shape
factor
1/1.7
Bandwidth
(kHz)
Pos
l:
300
Hz
Pos
2:
1.4
kHz
Pos
3:
7..1
kHz
Pos
4:
4.5
kHz
Monitor
switch
off
6/60
dB
shape
factor
1/2.5
Bandwidth
(kHz)
Pos
l :
500
Hz
Pos
2:
1.6
kHz
Pos
3 :
2.4
I<Hz
Pos
4 :
6
kHz
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