am-3729/sr amplifier frequency - navy radio
TRANSCRIPT
(
• ( (
�---------------- U
NC
LA
SS
IFIE
D--
--------------�
NA
VS
HIP
S 0
967
-105-8
010
TE
CH
NIC
AL
M
AN
UA
L
for
AU
DIO
FR
EQ
UE
NC
Y
AM
PL
IFIE
R
AM
-372
9/SR
DE
PA
RT
ME
NT
O
F
TH
E
NA
VY
BU
RE
AU
O
F
SH
IPS
�----------------U
NC
LA
SS
IFIE
I�-
---------------� A
pp
rov
ed: 2
Feb
rua
ry /9
66
Ch
an
ge 1
: 11
S
eptem
ber 1
96
7
Eff
ective
Pages
NA
VSH
IPS
0
967
-10
5-8
01
0
FR
ON
T
MA
TT
ER
LIST
O
F
EF
FE
CT
IVE
P
AG
ES
PA
GE
C
HA
NG
E
IN
PA
GE
C
HA
NG
E
IN
NU
MB
ER
S
EF
FE
CT
N
UM
BE
RS
E
FF
EC
T
Title P
age
Ch
ang
e 1
4
-3 an
d 4
-4
Ch
ange
1
11
C
ha
ng
e 1
4-5
O
rig
inal
iii to v
O
rig
inal
5-1
to 5
-3
Ori
gin
al 1
-0 to
1-3
O
rig
inal
5-4
C
ha
ng
e 1
2
-1 to
2-4
O
rig
inal
5-5
O
rig
inal
3-1
to 3
-3
Ori
gin
al 6
-1
Ch
an
ge
1
4-1
and
4-2
O
rig
in
al
RA
DIO
E
NG
INE
ER
ING
P
RO
DU
CT
S,
P.O
. B
OX
4
60
, M
ON
TR
EA
L
29
CO
NT
RA
CT
: N
Ob
sr-93
25
9
I
Erro
rs fou
nd
in th
is pu
blication
(oth
er than
obvio
us ty
po
graphical
errors), w
hich
ha
ve n
ot
been
co
rrected by
mean
s of T
em
po
rary C
orrectio
ns o
r Perm
anen
t Ch
ang
es sho
uld
be
repo
rted. S
uch
repo
rt sh
ould in
clud
e the co
mplete
title of th
e pu
blication
an
d
the
pu
blication
n
um
ber
(sho
rt title);
iden
tify
the p
age an
d lin
e or fi
gu
re an
d lo
cation
of th
e error;
and
be
forw
arded
to th
e Electro
nics Pu
blication
s S
ection
of th
e Nav
al Sh
ips
En
gineerin
g Cen
ter.
All
Navy
req
uests
for
NA
VSH
IPS
electro
nics p
ublicatio
ns
listed
in
th
e cu
rrent
issue
o
f N
A V
SA
ND
A P
ublicatio
n 2
00
2 "
Req
uisition
ing G
uid
e and
Ind
ex o
f Fo
rms an
d P
ublicatio
ns, C
og
nizance
Sym
bol
I", o
r in a su
bseq
uen
t issue o
f the E
lectron
ics Info
rmatio
n
Bulletin
sh
ould
b
e directed
to
th
e ap
pro
pria
te F
orm
s an
d P
ublicatio
ns S
up
ply
Poin
t.
ii C
HA
NG
E
1
-, •
' )
.. ,;)
FR
ON
T
MA
TT
ER
N
AV
SH
IPS
0
96
7-1
05
-80
10
C
on
tents
TA
BL
E
OF
CO
NT
EN
TS
Paragrap
h
Page
SE
CT
ION
I-
GE
NE
RA
L
INF
OR
MA
TIO
N
1-1
S
cop
e. 1
-1
1-2
G
eneral descrip
tion
1
-1
1-3
Q
uick
reference d
ata . 1
-3
SE
CT
ION
2
-IN
ST
AL
LA
TIO
N
2-1
S
ite selection
2
-1
2-2
M
ou
ntin
g 2
-1
-
2-3
In
stallation
p
roced
ure
2-1
2
-4
Po
wer co
nn
ection
s 2
-1
2-5
In
stallation
ch
eck .
2-1
SE
CT
ION
3
-O
PE
RA
TIO
N
3-1
O
peratin
g pro
cedu
re . 3
-1
3-2
O
perato
r's main
tenan
ce 3
-1
SE
CT
ION
4
-T
RO
UB
LE
S
HO
OT
ING
4-1
M
etho
d
4-1
4
-2
Fu
nctio
nal descrip
tion
4
-1
4-3
T
esting
4-1
4
-4
Test equ
ipm
ent an
d sp
ecial too
ls 4
-1
SEC
TIO
N
5 -
MA
INT
EN
AN
CE
5-1
F
ailure, an
d perfo
rman
ce and
op
eration
al repo
rts . 5
-1
5-2
P
reventive m
ainten
ance
. 5
-1
SE
CT
ION
6
-M
AIN
TE
NA
NC
E
PA
RT
S L
IST
OR
IGIN
AL
ii
i
•
Illustrations
Figure
1-1
2-1
2-2
3-1
4-1
4-2
4-3
5-1
5-2
5-3
5-4
iv
NA
VSH
IPS
09
67
-10
5-8
01
0
LIST
O
F
ILL
UST
RA
TIO
NS
SEC
TIO
N
1 -
GE
NE
RA
L
INF
OR
MA
TIO
N
AM
-37
29
/SR
Am
plifier .
SEC
TIO
N
2-
INST
AL
LA
TIO
N
Dim
ensions and m
ethod of m
ounting . A
mp
lifier rem
oved fro
m case
.
SEC
TIO
N
3-
OP
ER
AT
ION
Op
erating p
anel
SEC
TIO
N
4-
TR
OU
BL
E
SHO
OT
ING
Am
plifi
er open
for m
ainten
ance
Trouble sh
ooting d
iagram
Test p
oint d
iagram
SEC
TIO
N
5 -
MA
INT
EN
AN
CE
Fro
nt view
.
Insid
e rear view
Schem
atic W
iring d
iagram .
FR
ON
T
MA
TT
ER
Page
1-0
2-2
2-3
. .
. .
. 3
-2
4-2
4-3
4-4
5-1
5-2
5
-3
5-4
OR
IGIN
AL
FR
ON
T
MA
TT
ER
N
AV
SH
IPS
0
96
7-
10
5-
80
10
T
ab
les
LIS
T
OF
T
AB
LE
S
Ta
ble
Pa
ge
SE
CT
ION
1
-G
EN
ER
AL
IN
FO
RM
AT
ION
1-
1
Eq
uip
men
t sup
plied
1
-2
1-
2
Eq
uip
men
t requ
ired b
ut n
ot su
pp
lied .
1-
2
SE
CT
ION
3
-O
PE
RA
TIO
N
3-
1
Op
erato
r's emergen
cy m
ain
tena
nce c
ha
rt '
3
-2
SE
CT
ION
6
-P
AR
TS
L
IST
.
6-
1
Ma
inten
an
ce pa
rts list 6
-1
OR
IGIN
AL
v
Fig
ure
1-1
N
AV
SH
IPS
0
96
7-10
5-8
01
0
Fig
ure
1-1
. A
M-3
72
9/
SR
A
mp
lifier
1-0
AM
-37
29
/S
R
GE
NE
RA
L
INF
OR
MA
TIO
N
OR
IGIN
AL
AM
-37
29/
SR
N
AV
SH
IPS
0
967
-10
5-8
01
0
Pa
rag
rap
h
1-1
G
EN
ER
AL
INF
OR
MA
TIO
N
SE
CT
ION
1
GE
NE
RA
L
INF
OR
MA
TIO
N
1-1
. S
CO
PE
Th
is Tech
nica
l Man
ual is in
effect u
po
n receip
t. E
xtra
cts fro
m
this
pu
blicatio
n
may
be
ma
de
to
facilitate the p
reparatio
n o
f oth
er Dep
artmen
t of
Defen
se pu
blicatio
ns.
1-2
. G
EN
ER
AL
D
ES
CR
IPT
ION
Am
plifi
er, A
ud
io
Freq
uen
cy,
AM
-37
29/
SR
is fo
r g
en
era
l u
se w
ith
Na
vy
co
mm
un
ica
tion
receiv
ers, to o
perate lo
ud
speak
ers. It is a trans
istorized
three-stag
e amp
lifier fo
r aud
io freq
uen
cies. It h
as a p
ush
-pu
ll ou
tpu
t stag
e. a
. C
on
trols.
Th
e th
ree co
ntro
ls an
d
a p
ilot
lamp
are
mo
un
ted o
n th
e fron
t pan
el. Th
e co
n
trols are a P
OW
ER
switch
Sl, an
A.F
. L
EV
EL
co
ntro
l R
2
hav
ing
a ra
ng
e o
f 8
0
db
, a
nd
a
CH
AN
NE
L S
EL
EC
TO
R sw
itch S
2. T
he C
HA
N
NE
L S
EL
EC
TO
R sw
itch S
2 selects eith
er on
e of
the
two
in
pu
ts. T
he
pilo
t lam
p
DS
1
ha
s a
n
ad
justa
ble sh
utter a
nd
a red len
s. b
. In
pu
t. In
pu
t co
nn
ection
s are
pro
vid
ed
for
two
6
00
-oh
m
ba
lan
ced
lines.
Th
e tw
o-p
ositio
n
CH
AN
NE
L
SE
LE
CT
OR
sw
itch
S2
is u
sed
to
select eith
er lin
e, an
d
to
termin
ate the
oth
er in
6
20
oh
ms.
Th
e prim
ary of th
e inp
ut tran
sform
er is sh
ielded
and
has a cen
ter tap av
ailable. R
ated
po
wer
ou
tpu
t m
ay
be
ob
tained
w
ith
inp
uts
of
from
6 m
illiwatts to
2 w
atts. c.
Ou
tpu
t. T
he
maxim
um
o
utp
ut
of
the
am
plifi
er is 10 w
atts in
to a 6
00
-oh
m lo
ad, w
ith less
than
2
%
disto
rtion
. T
he
frequ
ency
resp
on
se is
OR
IGIN
AL
flat to
with
in 2
db
from
20
0 to
40
00
cycles p
er seco
nd
(with
respect to
10
00
cps). T
he am
plifi
er is reg
ula
ted so
tha
t the o
utp
ut d
oes n
ot v
ary m
ore
tha
n 2
db
wh
en th
e ou
tpu
t loa
d v
aries fro
m 6
00
o
hm
s to
3
00
o
hm
s. T
he o
utp
ut w
ind
ing
o
f th
e o
utp
ut tra
nsfo
rmer is sh
ielded
an
d th
e center ta
p
is bro
ug
ht o
ut.
d.
Po
wer su
pp
ly.
Op
eration
is from
50
to 6
0
cycles p
er secon
d o
r from
40
0 cy
cles per seco
nd
, sin
gle-p
hase a
c. Variatio
ns o
f 10
% in
vo
ltag
e an
d
5%
in
freq
uen
cy
are p
ermissib
le. T
he
prim
ary
w
ind
ing
of
the
po
wer tra
nsfo
rmer is
electrosta
tically
shield
ed. T
he p
ow
er sup
ply
is self-pro
tecting
again
st ov
ervo
ltag
e or o
verlo
ad.
e. A
ssemb
ly.
Th
e am
plifi
er is
enclo
sed
in
an
alum
inu
m
cabin
et w
ith
a fro
nt
pa
nel
hin
ged
at
the b
otto
m. T
he ca
bin
et may
be m
ou
nted
by
bo
lts th
rou
gh
the to
p, b
otto
m o
r back
. A term
ina
l strip
is m
ou
nted
in
side
the
ba
ck,
for
termin
atin
g
inco
min
g w
ires. T
he
fron
t p
anel
hin
ges
forw
ard
a
nd
d
ow
n
to
loc
k
in
a h
oriz
on
tal
po
sition
. If d
esired th
e sup
po
rts may
be
remo
ved
to le
t the
cha
ssis-pa
nel assem
bly
ha
ng
do
wn
and
give a
ccess to
the term
inal strip
insid
e the ca
bin
et. Th
e three
mo
du
les plu
g in
to co
nn
ectors o
n th
e cha
ssis-pa
nel
assem
bly
an
d fa
sten in
po
sition
with
nu
ts. A ca
ble
con
nected
to th
e termin
al strip
insid
e the ca
bin
et en
ds in
a con
necto
r ma
ting
with
a sock
et on
the
chassis-p
anel assem
bly
, from
wh
ich w
ires run
to
the th
ree con
necto
rs o
f th
e m
od
ules
an
d
to
the
con
trols. T
he ca
bin
et an
d fro
nt p
an
el are fin
ished
w
ith ligh
t grey
ena
mel.
1-
1
Table
1·1 N
AV
SHIP
S 096
7·105·80
10
AM
·3729
/SR
GE
NE
RA
L IN
FO
RM
AT
ION
TA
BL
E
1·1. E
QU
IPM
EN
T SU
PP
LIE
D
QT
Y.
NO
ME
NC
LA
TU
RE
O
VE
RA
LL
DIM
EN
SION
S (IN
.) W
EIG
HT
P
ER
V
OL
UM
E
(LB
.) E
QU
IP.
NA
ME
D
ESIG
NA
TIO
N
HE
IGH
T
WID
TH
D
EP
TH
(C
U.
FT
.)
1 A
F
Am
plifier A
M·37
29/SR
S
lh
8 5%
.1
5 l
lV.
.
2 Instru
ction N
AV
SH
IPS
10
%
8%
--
%
book
09
67
-105-80
10
---
---
---
-----------
TA
BL
E
1-2.
EQ
UIP
ME
NT
RE
QU
IRE
D B
UT
NO
T S
UP
PL
IED
QT
Y.
NO
ME
NC
LA
TU
RE
P
ER
R
EQ
UIR
ED
USE
C
HA
RA
CT
ER
ISTIC
S E
QU
IP.
NA
ME
D
ESIG
NA
TIO
N
1 or 2
Source of
audio -
frequency su
ch
as Navy radio
receiver
1 or more
Lou
d speakers
-
1-3. Q
UIC
K R
EF
ER
EN
CE
DA
TA
Au
dio amplifier type
.................. A
M-37
29/SR
F
ederal stock num
ber ....
....... 2
F5
820-9
99
-2591
M
anufacturer R
adio E
ngineering Produ
cts C
ontract N
Obsr-9
3259
Pow
er supply . . . . . . . . . . . . . . . . . . . . . . .
105 to 1
25 volts
50
to 40
0 cp
s 30
watts
Inp
ut ch
annels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
1-2
To
supply
Ou
tput im
pedance
a signal 6
00
ohm
s nom
inal O
utpu
t power
6
milliw
atts to
2 w
atts
Reproduction
Input im
pedance
of sound 6
00
ohms
nom
inal
Input level (nom
inal 60
0 oh
ms) ............
6 m
w to 2 w
atts F
requency range .
. . . . . . . . . . . . . .
. . 20
0 to 4
00
0 cp
s O
utput level (nominal 6
00
ohm
s) .. 10 w
atts max.
Level control range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
80 d
b
Dim
ensions ....
Slh
in. x 8 in. x 5
%
in. C
ube ... . ... ... ... .. . .. ..
..... .... . . ... .. .
.15 cu
. ft.
Weigh
t. . .........
.................
.......
11%
lb.
OR
IGIN
AL
AM
-37
29
/S
R
INS
TA
LL
AT
ION
N
AV
SH
IPS
0
96
7-1
05
-80
10
P
ara
gra
ph
2
-1
SE
CT
ION
2
INS
TA
LL
AT
ION
2-1
. S
ITE
S
EL
EC
TIO
N
Th
e a
mp
lifier
sho
uld
be lo
cated
wh
ere it
will
be m
ost co
nv
enien
t for o
peratio
n w
ith th
e asso
cia
ted
rad
io
receivers
an
d
lou
d
spea
kers,
an
d
for m
ain
tena
nce. P
ow
er sho
uld
also
be
av
aila
ble
(lh
am
pere, 1
15
vo
lts, ac). T
he d
istance fro
m th
e ra
dio
receivers
an
d
lou
d sp
eak
ers is n
ot
critical
an
d th
e loca
tion
is no
t restricted as reg
ard
s inp
ut
an
d o
utp
ut ca
blin
g.
2-2
. M
OU
NT
ING
Th
e am
plifi
er ma
y b
e mo
un
ted b
y bo
lts thro
ug
h
the
top
, b
ack
o
r b
otto
m
of
the
cabin
et. In
pu
t, o
utp
ut
an
d
po
wer
circuits
ma
y
be
bro
ug
ht
into
th
e ca
bin
et th
rou
gh
h
oles
in
any
of
these
area
s w
here th
e cleara
nce fro
m th
e chassis is su
fficien
t, p
referab
ly a
t the to
p o
r nea
r the to
p, clo
se to th
e term
ina
ls. H
oles
are
drilled
a
s req
uired
a
t th
e tim
e of in
stalla
tion
.
2-3
. IN
ST
AL
LA
TIO
N
PR
OC
ED
UR
E
a. B
efore d
rilling
ho
les in th
e cab
inet rem
ov
e th
e cha
ssis-pa
nel a
ssemb
ly.
(1)
Relea
se the tw
o fa
steners a
t the to
p o
f the
pa
nel a
nd
swin
g it o
ut o
f the ca
bin
et.
(2)
Disco
nn
ect th
e co
nn
ector
of
the
cab
inet
cab
le fro
m th
e ch
assis.
(3)
Disco
nn
ect th
e sta
ys
by
rem
ovin
g
the
retain
ing
ring
s from
the stu
ds. R
emo
ve the reta
in
ing
ring
from
the h
ing
e pin
an
d p
ull o
ut th
e pin
. b
. D
rill th
e req
uired
h
oles
in
the
case.
Fo
ur
Y<l"
mo
un
ting
bo
lts sho
uld
be u
sed, sp
aced a
s far
ap
art as p
ossib
le in th
e ind
icated
areas. A h
ole o
r h
oles fo
r wires sh
ou
ld b
e drilled
as requ
ired.
c. M
ou
nt th
e case w
ith th
e hea
ds o
f the b
olts
insid
e.
OR
IGIN
AL
d.
Pa
ss th
e req
uired
w
ires th
rou
gh
th
e h
oles
an
d co
nn
ect them
to term
ina
l strip T
B 1
.
CA
UT
ION
Do
no
t dro
p th
e retain
ing
rings.
If lost, sta
nd
ard
items p
er MS
16
63
3-4
01
7
for th
e stay
s an
d p
er MS
16
63
3-4
for th
e h
ing
e pin
ma
y b
e used
. e.
Rep
lace
the
cha
ssis-pa
nel
assem
bly
, h
ing
e p
in a
nd
stay
s an
d rep
lace th
e reta
inin
g rin
gs.
f. C
on
nect th
e cab
le to th
e cha
ssis con
necto
r. g
. P
ress the sta
ys o
utw
ard
with
the th
um
bs to
relea
se the la
tches.
h.
Clo
se an
d fa
sten th
e pa
nel.
i. C
om
ple
te
all
co
nn
ec
tion
s to
th
e
inp
ut
sou
rce, th
e o
utp
ut
loa
d
an
d
the
po
wer
sou
rce. A
dju
st the in
pu
t sou
rce to p
rovid
e a lev
el betw
een
6 m
illiwa
tts a
nd
2 w
atts.
2-4
. P
OW
ER
C
ON
NE
CT
ION
S
Mea
sure th
e ac sup
ply
vo
ltag
e. At 1
4, o
ne
wire
sho
uld
b
e o
n
termin
al
15
fo
r 1
25
v
olts,
on
term
ina
l 14
for 1
15
vo
lts an
d o
n term
ina
l 13
for
10
5 v
olts. T
he
facto
ry w
ill con
nect to
termin
al 1
4.
2-5
. IN
ST
AL
LA
TIO
N
CH
EC
K
a.
Op
erate th
e PO
WE
R sw
itch S
1 to
the
ON
p
ositio
n.
Th
e p
ilot
lam
p
DS
1
sho
uld
lig
ht;
tum
th
e sh
utter
ho
usin
g
cou
nterclo
ckw
ise to
en
sure
tha
t the sh
utter is o
pen
. b
. O
pe
rate
b
oth
sig
na
l so
urc
es;
turn
th
e
CH
AN
NE
L S
EL
EC
TO
R sw
itch S
2 to
cha
nn
el 1
an
d
then
to
ch
an
nel
2
no
ting
w
heth
er ea
ch
is rep
rod
ucin
g n
orm
ally
. c.
Ro
tate
the
AF
L
EV
EL
co
ntro
l R
2
no
ting
w
he
the
r th
e v
olu
me
in
cre
ase
s a
nd
d
ec
rea
ses
stea
dily
.
2-1
9Z
8
NA
VS
HIP
S
09
67
-10
5-8
01
0
A
AM
-37
29
/S
R
INS
TA
LL
AT
ION
No
te: H
oles
may
be
drilled
fa
r m
ou
ntin
g
bo
lts an
d
wire
entran
ce in
areas A
, B o
r C. A
vo
id riv
ets, bra
ces an
d w
iring
.
Fig
ure
2-1
. D
imen
sion
s a
nd
m
etho
d
of
mo
un
ting
.
OR
IGIN
AL
+-
AM
-37
29
/S
R
INS
TA
LL
AT
ION
I
HIN
GE
PIN
OR
IGIN
AL
NA
VS
HIP
S
09
67
-10
5-8
01
0
~
RE
TA
ININ
G
RIN
G
RE
TA
ININ
G
RIN
G
Figu
re 2
-2.
Am
plifi
er rem
ov
ed
from
case.
I
PA
NE
RE
TA
IN
SC
RE
'
AN
D
WA
SH
I
\ 2-3
Paragrap
h
3-1
N
AV
SH
IPS
0
96
7-1
05
-80
10
A
M-3
72
9/
SR
O
PE
RA
TIO
N
SE
CT
ION
3
OP
ER
AT
ION
3-1
. O
PE
RA
TIN
G
PR
OC
ED
UR
E
a. O
pe
ratin
g c
on
trols
of
the
am
plifie
r are
sh
ow
n in
figu
re 3-1
. b
. O
perate
the
AF
L
EV
EL
co
ntro
l R
2
to
step 1
. Tu
rn th
e CH
AN
NE
L S
EL
EC
TO
R sw
itch
S2
to
the
desired
ch
ann
el. O
perate
the
po
wer
switch
S1
to th
e ON
po
sition
. Th
e pilo
t lamp
DS
1
ind
icates that th
e po
wer is o
n. R
ota
te the sh
utter
to ad
just th
e brigh
tness.
Ad
just th
e AF
LE
VE
L
con
trol R
2 fo
r the d
esired lev
el. c.
To
sh
ut
do
wn
th
e am
plifi
er, fi
rst tu
rn
the
AF
L
EV
EL
co
ntro
l R2
to
1
, th
en
op
erate th
e P
OW
ER
switch
S1
to O
FF
.
3-2
. O
PE
RA
TO
R'S
M
AIN
TE
NA
NC
E
a.
DA
ILY
CH
EC
K. T
o en
sure p
rop
er op
era
tion
, the a
mp
lifier sh
ou
ld b
e given a d
aily
op
eratio
nal ch
eck. T
urn
on
the am
plifi
er, sup
ply in
pu
t sign
al an
d
check
th
e o
utp
ut
for
qu
ality an
d
volu
me o
n b
oth
chan
nels. R
otate th
e AF
LE
VE
L
con
trol R
2 to
check
for n
orm
al, qu
iet con
trol o
f th
e am
plifi
er ou
tpu
t. A
dju
st th
e p
ilot lam
p D
S1
fo
r the d
esired b
rightn
ess by ro
tating th
e sutter.
b.
PR
EV
EN
TIV
E M
AIN
TE
NA
NC
E. T
he p
erio
dic
me
cha
nica
l a
nd
e
lec
trica
l c
he
ck
s a
nd
m
ainten
ance p
roced
ure given
in ta
ble 3
-1 sh
ou
ld
be carefu
lly follo
wed
in o
rder to
assure co
ntin
uity
of service a
t all times an
d th
e main
tenan
ce of th
e eq
uip
men
t at its p
eak p
erform
ance.
3-1
c. E
ME
RG
EN
CY
MA
INT
EN
AN
CE
.
NO
TIC
E T
O O
PE
RA
TO
RS
Op
erators sh
all no
t perfo
rm th
e follo
win
g em
ergency m
ainten
ance
pro
cedu
res w
ith
ou
t pro
per au
tho
rization
. T
he
on
ly th
ings
wh
ich
the
op
erator
sho
uld
at
temp
t to rep
lace are the p
ilot la
mp
and
the fu
ses. (1
) T
o rep
lace the p
ilot lam
p D
S1
un
screw th
e len
s shu
tter. Rem
ove th
e lam
p b
y pressin
g in an
d
turn
ing
cou
nterclo
ckw
ise. P
ress in
a
new
la
mp
a
nd
rota
te clock
wise u
ntil it lo
cks. S
crew o
n th
e len
s shu
tter.
CA
UT
ION
NE
VE
R
RE
PL
AC
E
A
FU
SE
W
ITH
O
NE
O
F
GR
EA
TE
R
TH
AN
1/z
A
M
PE
RE
R
AT
ING
. IF
A
F
US
E
BU
RN
S
OU
T
IMM
ED
IAT
EL
Y
AF
TE
R
RE
P
LA
CE
ME
NT
, DO
NO
T R
EP
LA
CE
IT
A S
EC
ON
D T
IME
UN
TIL
TH
E C
AU
SE
H
AS
BE
EN
CO
RR
EC
TE
D.
(2)
Wh
en a fu
se bu
rns o
ut th
e ind
icating lam
p
in th
e fuse h
old
er lights u
p. T
o rep
lace a fuse F
1
or F2
tu
rn th
e cap
of th
e fu
se h
old
er co
un
terclo
ckw
ise to
release th
e cap
an
d
fuse.
Pu
ll th
e fu
se ou
t of th
e cap an
d in
sert a new
fuse.
Press
the fu
se and
cap
into
th
e fuse h
old
er an
d
turn
clo
ckw
ise to lo
ck. U
se the fu
se from
the S
PA
RE
fu
se ho
lder an
d rep
lenish
from
stock
. OR
IGIN
AL
-�
AM
-372
9/
SR
O
PE
RA
TIO
N
NA
VS
HIP
S
09
67
-10
5-8
01
0
TA
BL
E
3-1.
OP
ER
AT
OR
'S
EM
ER
GE
NC
Y
MA
INT
EN
AN
CE
C
HA
RT
TR
OU
BL
E
SY
MP
TO
M
PR
OB
AB
LE
C
AU
SE
C
OR
RE
CT
ION
Tab
le 3
-1
PO
WE
R
switch
S1
ON
bu
t P
ilot lam
p D
S1
bu
rned
ou
t. R
eplace th
e pilo
t lamp
from
p
ilot lam
p d
oes n
ot ligh
t.
PO
WE
R sw
itch S
l O
N,
pilo
t lam
p
lights,
bu
t n
o
signal
ou
tpu
t or
un
satisfactory
ou
tpu
t.
OR
IGIN
AL
--XD
Sl
DS
l
Fu
se F1
or F
2 blo
wn
.
AC
po
wer so
urce n
ot o
n.
No in
pu
t or un
satisfactory
signal
inp
ut.
MP
2
52
M
Pl
R2
Figu
re 3-1
. O
peratin
g pan
el.
spares
(par.
3-2
c( 1
)).
Rep
lace with
spare fu
se (p
ar. 3
-2 c(2)) .
Turn
on
po
wer so
urce o
r• rep
ort p
ow
er failure.
Try
the o
ther ch
ann
el; ch
eck
un
satisfactory
inp
ut
sou
rce; ch
eck in
pu
t con
nectio
ns o
n
termin
al strip.
XF
l F
l
�--
---
XF
2
F2
�-
3-2
Paragrap
h
4-1
N
AV
SH
IPS
0
96
7-1
05
-80
10
A
M-3
72
9/
SR
T
RO
UB
LE
S
HO
OT
ING
SE
CT
ION
4
TR
OU
BL
E S
HO
OT
ING
4-1
. M
ET
HO
D
Tro
ub
le sh
oo
ting
invo
lves reco
gnitio
n
of
the
existen
ce of a
fau
lt an
d th
en lo
cating th
e cause o
f th
e fault in
ord
er that it m
ay be co
rrected. W
hen
th
e cau
se is no
t ob
vio
us, sta
rt first
with
sim
ple
tests.
4-2
. F
UN
CT
ION
AL
D
ES
CR
IPT
ION
Th
is is a tran
sistorized
amp
lifier w
ith a
n in
pu
t m
od
ule,
a p
ow
er o
utp
ut
mo
du
le an
d
a p
ow
er su
pp
ly
mo
du
le.
Th
e
sch
em
atic
is
sho
wn
in
F
igure
5-3
. a.
Inp
uts. T
he tw
o af in
pu
ts com
e thro
ugh
the
termin
al strip T
B 1
insid
e the rear o
f the ca
bin
et to
the C
HA
NN
EL
SE
LE
CT
OR
switch
S2
. Wh
en
this sw
itch is set fo
r inp
ut 1
it con
nects th
is inp
ut
to th
e amp
lifier, an
d term
inates in
pu
t 2 w
ith 6
20
o
hm
s. Wh
en set fo
r inp
ut 2
it con
nects th
is inp
ut
to
the
amp
lifier
and
term
inates
inp
ut
1
with
6
20
o
hm
s. b
. In
pu
t m
od
ule
. F
rom
th
e
CH
AN
NE
L
SE
LE
CT
OR
sw
itch
S2
, th
e in
pu
t go
es th
rou
gh
termin
als 1
and
9
of co
nn
ector
J2
to
the in
pu
t tran
sform
er in th
e inp
ut m
od
ule. T
he tran
sform
er ap
pears as a
pu
re resistance. T
he
ou
tpu
t of th
e tran
sform
er from
the in
pu
t mo
du
le goes th
rou
gh
termin
als 2
an
d
7
to th
e A
.F.
LE
VE
L
con
trol
R2
; it
then
go
es to
th
e in
terstage tran
sform
er th
rou
gh
termin
als 7
an
d
10
an
d
to
the
first
transisto
r amp
lifier. T
he o
utp
ut o
f th
e transisto
r go
es th
rou
gh
an
in
terst:;tge tran
sform
er to
tw
o
transisto
rs op
eratin
g as a p
ush
-pu
ll secon
d sta
ge am
plifi
er. c.
Po
wer o
utp
ut m
od
ule. T
he o
utp
ut fro
m th
e in
pu
t mo
du
le, termin
als 8 an
d 1
5 o
f J2
, is app
lied
thro
ugh
term
inals
1
and
9
o
f J3
o
f th
e p
ow
er o
utp
ut m
od
ule, is am
plifi
ed b
y tw
o tran
sistors in
p
ush
-pu
ll an
d
app
ears a
t the
ou
tpu
t w
ind
ing
of
the
ou
tpu
t tran
sform
er term
inals
8
and
1
5
and
th
ence to
the
termin
al b
oard
. T
he
ou
tpu
t tran
sfo
rmer p
rov
ides
negative
feedb
ack
for
imp
rov
em
ent
of
the
amp
lifier
chara
cteristics, th
rou
gh
termin
als 2 an
d 1
0 o
f J3.
d.
Po
wer su
pp
ly mo
du
le. Th
e ac inp
ut p
ow
er co
mes
thro
ugh
fu
ses F
1
an
d
F2
an
d
thro
ugh
P
OW
ER
switch
S1
th
rou
gh
termin
als 9
and
1
4
of
J4
to
the
po
wer
transfo
rmer.
Th
ree p
rimary
4-1
taps are p
rov
ided
, termin
als 1
5,
14
and
13
, for
12
5
volts,
11
5
volts
an
d 1
05
vo
lts respectively.
Th
e seco
nd
ary o
f th
e tran
sform
er su
pp
lies a
b
ridg
e re
ctifie
r w
ho
se
de
o
utp
ut
is filte
red
. T
hro
ugh
termin
al 3 o
f J4
, -2
7 v
dc
is sup
plied
to
th
e p
ow
er o
utp
ut
mo
du
le; th
rou
gh
termin
al 1
2 o
f J4,
-2
5 v
dc is su
pp
lied to
the in
pu
t and
p
ow
er ou
tpu
t mo
du
les; thro
ugh
termin
al 7 o
f J 4,
-1
7
vdc
is su
pp
lied
to th
e in
pu
t m
od
ule.
Th
e p
ositiv
e side
of
the rectifi
er o
utp
ut is gro
un
ded
. T
he
pilo
t lam
p
DS
1
op
erates
on
6
.3
volts
ac th
rou
gh term
inals 4
and
5 o
f con
necto
r J 4.
4-3
. T
ES
TIN
G
a. T
he tro
ub
le sh
oo
ting
diagram
is figu
re 4-2
an
d th
e test po
ints are sh
ow
n in
figu
re 4-3
. Per
form
the listen
ing tests a
s ind
icated in
figu
re 4-3
, at p
oin
ts A to
G, w
ith th
e earph
on
e. No
te absen
ce o
f sign
als, w
eak
signals
or
disto
rtion
. M
ak
e d
e vo
ltage tests
with
m
ultim
eter A
N/
PS
M-4
o
r eq
uivalen
t, at
po
ints
H,
J,
K
and
L
to
d
etect in
correct d
e voltages to
grou
nd
. Ma
ke resista
nce
tests w
ith
the
mu
ltimeter
if it
is n
ecessary to
ch
eck valu
es of resisto
rs R1
, R2
or R
3.
b. A
no
rmal am
plifi
er will giv
e full o
utp
ut w
ith
no
t mo
re than
1.9
vo
lts of a
ud
io p
ow
er app
lied
to
the in
pu
t. Fu
ll o
utp
ut is 7
7.5
v
olts o
f au
dio
p
ow
er across a 6
00
-oh
m o
utp
ut lo
ad.
4-4
. T
ES
T E
QU
IPM
EN
T A
ND
S
PE
CIA
L
TO
OL
S
a.
Test eq
uip
men
t. T
he
follo
win
g test
equ
ip
men
t or eq
uivalen
t may b
e requ
ired.
1.
Earp
ho
ne
con
nected
as
sho
wn
in
fi
gure
4-3
. 2
. M
ultim
eter AN
/P
SM
-4.
3.
Au
dio
freq
uen
cy (1
00
0-cycle)
oscillato
r A
N/
UR
M-1
27
. 4
. Vacu
um
-tub
e vo
ltmeter
AN
/U
SM
-16
. 5
. T
ransisto
r tester
AN
/U
SM
-20
6.
b.
To
ols. N
o sp
ecial too
ls are requ
ired b
ut th
e fo
llow
ing item
s sho
uld
be a
t ha
nd
. 1
. P
liers, lon
g no
se. 2
. S
crewd
river, sm
all 6-in
ch.
3.
So
lderin
g iron
, 25
wa
tt or 1
00
wa
tt. 4
. S
old
er.
OR
IGIN
AL
AM
-37
29
/S
R
TR
OU
BL
E
SH
OO
TIN
G
OR
IGIN
AL
NA
VS
HIP
S
09
67
-10
5-8
01
0
Figu
re 4
-1.
Am
plifi
er o
pen
fo
r m
ain
tena
nce.
Figu
re 4
-1
4-2
/
Figu
re 4
-2
4-3
Pilo
t lam
p
do
es n
ot
light
..
--..
...
"""
NA
VS
HIP
S
096
7-10
5-8010
Sh
utter
closed
Lam
p
bu
rned
o
ut
AC
su
pp
ly
failed
PO
WE
R
switch
n
ot o
perated
to
ON
Fu
ses F
1 o
r F2
blo
wn
No
in
pu
t fro
m
chan
nel
Fa
ulty
in
pu
t fro
m ch
ann
el
Defective
ou
tpu
t fro
m
po
wer
sup
ply
m
od
ule
Defective
ou
tpu
t from
inp
ut
mo
du
le
Defective
ou
tpu
t from
ou
tpu
t m
od
ule
Figu
re 4
-2.
Tro
ub
le sh
oo
ting
diagram
.
..
�
l....t
L....
""''
..
....
.....
......
AM
-37
29/
SR
T
RO
UB
LE
S
HO
OT
ING
No
o
utp
ut
or
fau
lty o
utp
ut
y
Ou
tpu
t
OK
OR
IGIN
AL
. . (
(
.. (
R2 A
M-3
72
9/
SR
TR
OUB
LE
SH
OOT
ING
INP
UT
F
52
L I J2
AA
')
"
AI.
AI.
NA
VS
HIP
S
09
67
-10
5-8
01
0
Figure
4-3
G
E
AN
Y A
VAILA
BLE
EA
RPHO
NE
AN
Y P
OT
. M
AX
RES
IS.�
1
K TO
10
K I
..L A
NY
CA
P.
J .1 TO
.Q1 U
F
TES
T AT P
OIN
TS
TES
T AT P
OIN
TS
A
TO
G
H, J, K, L,
PO
WE
R SU
PP
LY
J4
7
3 12
-2
7VD
C I
I-2
5VDC
.. I
I R4
15
J
A�
�
AI..
A.: .1
�
-17
VDC
K ..
... I
71,,._.A
� J2
� 2
5K{
· ,,I l
__
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llo.
.IDI
IT
I
I P
OW
E:R
I I
INP
UT
R1
390
OU
TPU
T M
OD
ULE
I
< --�
5 rT"":'... �
I
I
�7
81�
CH
AN
GE
1
PO
WE
R O
UTP
UT
MO
DU
LE
B
8
15
�� � J3
a�A
Jl
TBI O
UTP
UT
Figure
4-3
. T
est point diagram.
MO
DU
LE
NO
TE:
DIS
CO
NN
EC
T O
NE
WIRE
TO
ME
AS
URE
RE
SIS
TAN
CE
TES
TS
R 1
R 2
R 3
4-4
Paragrap
h
5-1
N
A V
SH
IPS
0
967
-10
5-8
01
0
AM
-37
29
/S
R
MA
INT
EN
AN
CE
SE
CT
ION
5
MA
INT
EN
AN
CE
5-l
. F
AIL
UR
E,
AN
D
PE
RF
OR
MA
NC
E
AN
D
OP
ER
AT
ION
AL
R
EP
OR
TS
Th
e B
urea
u
of
Sh
ips
no
lo
ng
er req
uires
the
sub
missio
n o
f failu
re rep
orts fo
r all eq
uip
men
ts. F
ailure R
epo
rts an
d P
erform
an
ce an
d O
pera
tion
al
Rep
orts
are
to
be
acco
mp
lished
fo
r d
esignated
eq
uip
men
ts (refer to
Electro
nics
Installatio
n
an
d
Ma
inten
an
ce Bo
ok
, NA
VS
HIP
S 9
00
,00
0) o
nly
to
the
exten
t req
uired
b
y
existin
g
directiv
es. A
ll fa
ilures
sha
ll b
e rep
orted
· for
tho
se eq
uip
men
ts req
uirin
g th
e use o
f Fa
ilure R
epo
rts.
5-2
. P
RE
VE
NT
IVE
M
AIN
TE
NA
NC
E
a. M
on
thly
. Visu
ally
insp
ect the eq
uip
men
t for
excessive dirt o
r grea
se, bro
ken
or lo
ose k
no
bs o
r excessive co
rrosio
n. D
o n
ot o
pen
the p
an
el un
less extern
al ap
pearan
ce in
dica
tes th
at
the
interio
r sh
ou
ld b
e insp
ected o
r u
nless
the
equ
ipm
ent
is n
ot p
erform
ing sa
tisfacto
rily.
b.
Th
e locatio
n o
f pa
rts is sho
wn
in fi
gu
res 3-1
, 5
-1 an
d 5
-2. T
he sch
ema
tic an
d w
iring d
iagrams
are figu
res 5-3
an
d 5
-4. D
o n
ot rep
lace a
ny
majo
r p
arts u
ntil
suffi
cient
testing
h
as
been
d
on
e to
p
rov
e that o
ther p
arts o
r wirin
g are n
ot a
t fau
lt.
Fig
ure
5-l
. F
ron
t view
.
5-1
O
RIG
INA
L
,,
•
,)
J
«
•
..
•
AM
-37
29
/S
R
MA
INT
EN
AN
CE
PS
l
R2
OR
IGIN
AL
NA
VS
HIP
S
09
67
-10
5-8
01
0
Fig
ure
5
-2
1m!--
--Al
...
1 n
Figu
re 5
-2.
Insid
e rea
r v
iew .
A2
5-2
.1
(
..
\.
� (
., (
AM
-37
29
/S
R
NA
VS
HIP
S
09
67
-10
5-8
01
0
MA
INT
EN
AN
CE
P
AR
TS
L
IST
RE
F.
DE
SIG
. --
-A
-1*
A2
*
DS
l
Fl
F
2
11
1
2
J3
1
4
MP
l
MP
2
PS
l*
Rl
R
2
R3
R4
Sl
S
2
I T
Bl
W
l
XD
Sl
XF
l
XF
2
SE
CT
ION
6
MA
INT
EN
AN
CE
P
AR
TS
L
IST
TA
BL
E
6-1
. M
AIN
TE
NA
NC
E
PA
RT
S
LIS
T
NA
ME
AN
D
DE
SC
RIP
TIO
N
MO
DU
LE
, in
pu
t: se
ale
d
netw
ork
c
on
tain
ing
th
e
first
an
d
sec
on
d a
mp
lifier sta
ges, p
er R
EP
dw
g F
54
42
1
MO
DU
LE
, po
wer o
utp
ut:
sea
led
n
etwo
rk c
on
tain
ing
the
third
a
mp
lifier sta
ge,
per R
EP
dw
g F
54
42
2
LA
MP
, in
ca
nd
escen
t: p
er MS
15
57
1-2
F
US
E,
no
n-ren
ewa
ble g
lass:
pe
r MS
90
07
8
Sa
me
as
Fl
C
ON
NE
CT
OR
, recep
tac
le: 1
5 c
on
tac
ts, p
er RE
P
dw
g F
54
64
1
Sa
me
a
s Jl
Sa
me
as
Jl
Sam
e a
s J
1
KN
OB
, p
oin
ter: p
er MS
9!
52
8-!
P2
B
Sa
me
as
MP
l
MO
DU
LE
, p
ow
er su
pp
ly:
sea
led
n
etwo
rk
co
nta
inin
g
rectifi
ers a
nd
fi
lters; in
pu
t 5
0-6
0
or
40
0
cp
s a
t 1
05
, 1
15
o
r 1
25
v
olts,
26
wa
tts; ou
tpu
t: -
17
vd
c, -2
5 v
dc
, -2
7 v
dc
an
d 6
.3 v
ac
, per
RE
P d
wg
F5
44
20
R
ES
IST
OR
, fix
ed:
per M
IL-R
-11
typ
e RC
20
GF
39
1J
RE
SIS
TO
R,
va
riab
le: c
om
po
sition
ty
pe
, tw
o
sectio
ns
eac
h
25
,00
0 o
hm
s, per R
EP
dw
g F
54
63
9
RE
SIS
TO
R, fi
xed
: p
er MIL
-R-1
1 ty
pe R
C2
0G
F1
53
1
RE
SIS
TO
R, fi
xed
: pe
r MIL
-R-1
1 ty
pe R
C2
0G
F1
50
1
SW
ITC
H, to
gg
le: p
er MS
35
05
8-2
2
SW
ITC
H,
rota
ry:
per
MIL
-S-3
78
6,
typ
e S
R0
5N
30
BI
MG
C
per
RE
P
dw
g
F5
45
90
B
OA
RD
, termin
al:
per M
IL-T
-16
78
4 ty
pe 2
5T
BI
2
CA
BL
E A
SS
EM
BL
Y:
11 w
ires with
termin
al lu
gs o
ne
end
an
d
a I
S-c
on
tac
t plu
g o
ther e
nd
, pe
r RE
P d
wg
F5
45
83
H
OL
DE
R,
lam
p:
per M
IL-L
-36
61
typ
e LH
75
LC
I8
RD
H
OL
DE
R, fu
se: p
er MIL
-F-1
92
07
typ
e FH
L1
7G
S
am
e a
s X
FI
C
LIP
: p
er R
EP
d
wg
F
55
42
6
NU
T:
per
RE
P
dw
g
F5
53
64
P
IN:
per
RE
P
dw
g
F5
50
10
R
ING
: p
er M
S1
66
33
-4
RIN
G:
per
MS
I6
63
3-4
01
7
SC
RE
W:
per
RE
P
dw
g
F5
52
22
S
TA
Y:
per
RE
P
dw
g
F5
52
23
W
AS
HE
R:
per
RE
P
dw
g
F5
52
37
W
AS
HE
R:
per
RE
P
dw
g
F5
53
82
W
AS
HE
R:
per
RE
P
dw
g
F5
53
88
W
AS
HE
R:
per
RE
P
dw
g
F5
53
94
W
AS
HE
R:
pe
r R
EP
d
wg
F5
53
98
*M
od
ule
s Al
, A2
an
d
PS
I a
re no
t rep
aira
ble
.
CH
AN
GE
1
US
E
Pilo
t la
mp
A
C
line
A
C
line
O
n
ch
assis
Fo
r m
od
ule
A
l
Fo
r m
od
ule
A
2
Fo
r mo
du
le
PS
I
Fo
r S
l
Fo
r R2
Le
ve
l c
on
trol
Le
ve
l c
on
trol
Lev
el c
on
trol
AC
p
ow
er
Ch
an
ne
l selec
tor
Ex
terna
l w
ires C
on
nec
ts T
B I
to
J1
Fo
r D
Sl
F
or
Fl
F
or
F2
F
or
W2
F
or
A2
F
or
hin
ge
Pin
retain
er S
tay
reta
iner
Pa
nel
Su
pp
ort
Sta
y
sprin
g
Sta
y,
teflo
n
Pa
nel,
screw
A
l,
A2
, P
SI
P
an
el scre
w
Ta
ble
6-1
6-1
F 54
419
CA
SE
AS
S'Y
I
I
FRO
M A
UD
IO
INP
UT
CH
AN
NE
L 2
FRO
M A
UD
IO
INP
UT
CH
AN
NE
L 1
CE
NTE
R
TAP
TO
GR
OU
ND
O
R A
S R
EO
'D
FRO
M G
RO
UN
D
BUS
TBl
Wl
( I 61
) h
p
52 IN
PO
S 2
VIE
WE
D
FROM
W
IRIN
G S
IDE
( I
Q
I )
I
) •
)'v
I l I
I I
p
I�
I•
P
I F2
15
,_-w-�:��
I p
p p
13
--�,.,���
PS
l
F544
20
PO
WE
R S
L!P
PL Y
M
OD
ULE
Figu
re 5
-3
FS
44
18
CH
AS
SIS
PA
NE
L A
SS
'Y
p
7
3
IE .
IE P
Al
-17 V
DC
-27 V
DC
�D
Sl
p
NA
VS
HIP
S
09
67
-105
-80
10
1"14
15
Jl
Wl
p
TBl
8 9 0
10
0
--L
---
---
---
---
---
---
---
---
---
---
---
----
L_
CH
AN
GE
1
Figu
re 5
-3.
Am
plifi
er A
M-3
72
9 /
SR
, S
chem
atic.
AM
-37
29
/S
R
MA
INT
EN
AN
CE
CE
NTE
R TA
P
TO
GRO
UN
D
OR
AS
RE
Q'D
5-3
