Operating instructions
nrini,i
,'1
1]1.,
sr)ul'ce, aucl connect
the
lug
on the
shit'ld
to
the
ttegtrtive
(-)
terminal
of the
s0tì f ce.
c.
Dt'y-Battery
Oyteratiott.
Connect
Polver
Caìrle
Assembly
CX-1360/U
to
DRY
BAT-
TERY
receptacle
J104,
and secltre
the
connector
in
place.
Connect
Battery
BA-405iU
to
the
plug
on
the
cable
nearest
to the
power
supply
chassis,
and
then
connect
tu'o
Batteries
BA-
419/IJ
to the
outer
sockets
on the
calcle.
Secure
batteries
in
Bag CW-2I2,/U'
Nofc.
The initial
ad.justment
belorv
is
not
to be
tnade
rvhen
the eqnipment
is
connectecl
for
dry-batter:y
opera'
tion.
d.
Inítiat
Adiustment.
Turn
POWtrR
ON-
OFF
switch
S103
to
ON,
and
allou'
5
mintttes
for warm-up
time.
Slide
the
power
supply
unit
partially
out of
the
cabinet
(par.
13). Connect
a
20,000-ohms-per-volt
meter
to
the
fiIcrment
aoltage
test
point
(J102)
on
the
right
sicle
of
the
porn'er
suppll'
(fig'.
11) ancl
adjust
the frla-
m,ent
aoltagle
contt'ol
(R116)
until
the
meter
reads
1.4 volts
dc.
If the
proper
voltage
cannot
be
obtained,
refer
to
the eqllipment
performance
checklist
(par.
43).
Replace
the
pou'er
sr-rpply.
e.
Headset
Connect
Headset
CW-49507-A
(Navy
type)
to
Headset
Cord
CX-1334/U'
Connect
cord
to
either
PHONES
receptacle
on
the
receiver.
f
.
Monitoring
I'nput.
If the
radio
set
is
to be
used
to
monitor
the
outpr"rt
of
another
receiver,
to
monitor
the
sidetone
olttput
of
an
associated
transmitter,
or
to
sltìlply
a
monitoring
signal
to
associated
equipment,
the
MONITORING
INPUT
receptacle
mllst
be
connected
to
the
associated
equipment.
For this
ptlrpose'
a
nine-
coniluctor
cable,
terminated
in a
suitable
plug,
is required.
(Neither
cable
nor
plug
is supplied
rn'ith
the
radio
set.)
Circuit
details
of
the
con-
nections
to be
made
are
included
in
paragraph
68.
16.
Presetting
Rodio
Receiver
R-174/U
R.R.
(fig.12)
Presetting
the
receiver
consists
of adjusting
ihe MANIIAL-PRESET
TUNiNG
mechanism
o allow
instantaneous
selection
of any
10 de-
ì
rlnted
channels.
A
signal
soltrce
(loosely
12
coLrpie([
signal
gettei'lrtor
or
distant
transmitter)
is lecluit'etl
fot'
1ti'csetting
each
channel.
A,
Prcliiiitittr',r
.lrl
.i
trstittents,
(1)
Rotate
thc
IIA.NUAL-PRESET
TUN-
ING
conti'r)l
to
see that all
the
num-
bered
tletcttts
:Lt'c
sitr.tated within
the
tuning:lzinlLtth
ìr)-
lliacing
the
at'rou'ed
Jtole over
all
the
tleterlts'
(2)
If a
detent
is
uol
irl
tl-re
ttlning
range'
place
either
hoie of
the
]IANUAL-
PRESET
TUNING
cotrtrol
over
the
detent
nut,
place
the
lockirlg
ke1' 6v"*
the
nut, and
loosen.
(3)
With
the
key
in
place
on
the
nttt'
ro-
tate
the
control
until
the
cletent
is
rvithin
the
tuning
azimuth.
Tighten
ancl
remove
the
locking
keY.
b. Settíng
tlte
Preset
Chonnels.
(1)
Set
the
BAND
S\\r, and
MANUAL-
PRESET
TUNiI'IG
cotitrols
for the
desired
channel
frequencY.
(2)
Place
the
a.rrorcecl
ltole over
the closest
(or
clesired)
numbered
detent
by
ro-
tating
the
I'{ANUAL-PRESET
TUN-
ING
control.
(3)
Loosen
the
numbererl
nut by
using
the
locking
key
assembl-v,
ancl
lift
the
ccLllL
aTnL.
(4)
Lezrve
the
locking
kelr
in
place
anci
i:otate
the
IIANUAL-PRESET
TUN-
ING
control
back
to
the channel
fre-
quency.
(5)
Push
in the
fine-tuning
knob
and
make
a
fine-tuning
adjustment.
(6)
Adjust
the
ANT.
TRIMNIER
control
for
maximum
signal.
(7)
Rock
the
fine-tuning
control
to
insure
maximLlm
signa'].
(8)
Tighten
the
numbered
nut
securing
the
detent,
push
dorvn
the
cam arm'
and
remove
the
locking
keY.
(9)
Write
the band
and
frequency
on
the
detent-frequency
chart
located on
the
front
panei.
(10)
Repeat
the
procedure for
as
malu/
pre-
set
channels
as
desired.
AGO
3134