Cadence ZRS C8 Instruções de Operação descarregar pdf (Página 85)

Step

Generator

freq I mc

)

Receilcr

tun ing

dial r

mc

)

Tuned

r:ircuit

adjustment

for

peak

outl)ut

c16

C7

C2

Second i'-f

tlans-

former'.

Filst

r'-f

tlans-

fornter'.

ANT.

TRIII],IER.

Remarks

Rock.

Roc'ìi.

Hjsh

enrl calibi'ation

'point.

Iurnge flequency

checli.

6

7

Repeat

steps

4

and

5.

10.41

Repeat

steps

.l

and

5.

.i.

R-Í

Alínencnt,

Band .!.

Receiver

dial

(mc)

Generator

freq

(mc)

Tuned circuit

adjustment

for

peak

output

Remarks

1

2

3

4

9.5

18

Repeat

steps 1

and 2.

9.5

l8

Repeat -qteps

4

and 5.

18.91

9.5

18

Repeat

steps 1

and 2,

ló

Repeat

steps

.l

and

5.

18

i

Oscillator low

end.

Oscillator high

end.

R-f transfolmers.

Second r-f

trans-

former.

First

r-f trans-

former',

ANT.

TRI}f},IER

iRock.

Lotv end

caliblation

point.

I

High end calibration

point,

Image

frequency

check.

T8(4)

.KD

T7(4)

T6(4)

r5(4)

c15

c6

C2

97.

Colibrotion

Oscillotor

Alinement

Procedure

(fig.

40)

Set

PHN.-C.W.-NET-CAL.

function

^switch

to

CAL.

Connect

a vacuum-tube

voltmeter

through

a

68K-ohm isolating

resistor

to

pin

4

of V5.

Ad,ir"r-qt

the

bottom

slug

of T12

for

maximum

deflection

of the meter.

The reading

shouìd

be

approximately

-25

volts

dc.

Section lY.

FINAL

TESTING

98"

Generol

Thi-s -ssgficln

is intended

as

a

guicle

in

de-

tt,rmining

the

quality

of

a

repairecl

Raciio

Re-

t'r,iviug

Set

ANr'GRR-5.

The

minimum

test

ì',,(luirements

are outlined

in

the

paragraphs

1,ll

through

102.

These ma-v

be

performecl

by

;rintenance personnel

rvith

aclequate

test

rìlrment

and the necessary

skills.

Repaired

upment

meeting

these

requirements

rvill

r'lii-sl

snifsrmly

satisfactorv

oper,ation.

All

.\(ì() iJ1:jJA

of the follorvin.s

tests

ar.e

to

be

performed

u'hile

opelating

the

t'€ceiver

with

a 11b-volt

a-c

input, if

avzrilable.

Allorv

the

receiver

to

\\,Arm

rilt

fol

a feu'minutes

before

making

an,v

measttrements.

99.

Test

Equipment

Required

The instt'r,rments

needed

for

testing

the

re-

pairecl

ecpripment

are listed

in

paragraph

Tl.

Use

ecprivalent

instrnments

when

the items

listed

car-nrot

be obtained.

77

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