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

he

P L A M

tuning

procedure

The

option

2

jncol'por8t('~;

8

I'IM'l

(letector

to

be

useeJ

~Ih

n

the

received

broar!r.;lstinq

station

'(Jf'rf~rs

From

sel

cti\

F8i1inq.

l n

(j

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eJ

o r t o

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J

Il

C i n

[I

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tilt j

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fl

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P l. !\tvl mu d

e,

p r o e e d

very

cRreFulJy

as

Folluws:

a)

Switrh

6 F

in

on

posltion.

b)

Modt'

swi

tell

on

I

'in

or

USB

dependjn(~

on

illtcr-

FerenCt'.

c ) S

f'

l e c t 6 k Il z ,

or

2.

4 k Hz b n d

"'I

i d t

h,

de p f

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rl

rl(

Il

g

on

jnterference,

the

monitor

switch

can

either

be

N

o r OF

F,

al

s o d e p

(~n

d i ng o n t he i n t e r Fe r e nc e J e \ e l .

d)

Tune

in

carefully

the

eJesired

frequency

and

a

just

very

slowly

the

6.

Fcontrol

until

the

PLAM

LED

(external

VFO)

lights

up.

Please

nate

that

the

LED

(external

VFO)

always

will

light

up

if

the

carrier

is

not

present

or

iF

you

are

too

far

away

From

the

center

frequency.

e)

Slowly

turn

the

PBT

control

in

order

to

obtain

.he

best

reception

with

the

highest

intelligibilit>

f)

In

ca~e

you

re0erse

sieJeband,

please

repeat

the

procedure

as

indicated

under

step

d

and

e.

Following

fig.

explains

how

the

PLAM

works.

CARRIER

OF

AM

STATION

LOCKRANGE

(,

LED

ON)

LED

ON

LEO

ON

LEO

OFF

LED

OFF

(NO

LOCK)

(NO

LOCK)

(NO

LOCK)

(NO

LOCK)

300

250

200

150

100

50

o

50

100

150

200 250

300

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