Heath Heathkit SB-104A User manual
HTH
MANUAL
for the
SINGLE SIDEBAND
TRANSCEIVER
Model SB-104A
Assembly
595.1992.o�
HEATH COMPANY • BENTON HARBOR, MICHIGAN
r
i
HEA
COMPANY E
RECTORY
t m are
ts :
(616) -
(616)
(616)
2-
(616) -
(616) -
(616) -15
(616) -7
a, Ma,
,
, ,
i G
..».....
e - He
t - are:
rati Sys,
,
l.
it P
a Cra W Ws
Tl
P
A.M.
to
12M.
1. P.M.
M.,
ES W
C,
,
E (616) -10
atr R (616) -
T Et, Wea I a
C.
T ..
(616) -11
(616) -1
(616) -71
iv
infat
t Pa
Owner's Responsibili
TECHNICAL CLTA Y re a y y mht in
as u
yr
Hth
us a e us a ca S.
c a
s
e at do
all
t
exc
iita o t
c
ds.
abe lirr c may n
Io y
s an s Meat s
is
ee
to
h
it
ts
tt
a
st
u in
c
th
s
SUCH REPAIR AND REPCENT SHALL BE THE SE REMEDY
THE CUSTER D THEE SHA BE LIABILI
THE PART OF HTH FO ANY SPECIAL INDI ECT INCIDENT SEQUENTI DGES. INCLUDING T T
LIMITED TO Y LOSS
BUSINE OR PITS. HER NOT FSELE
T COVERED T r
s. ia, a de due
. ase.
are
by the waty U
e
a/
uutz
e pr
a u .
v s waay in ts rety Ts ds n e rmrt f iie.
u,
y
-
up
te.
unz
gee.
I �
Consumer Prottion Plan for Hthkit Csumer Pructs
We to
t
Hth fly We e y j as y k a
t
be p
th
s "
" Pl r m Pr i y. It is a LIMITED WAR"As
d
in
the U.S. Cm Pru w a Fal Tr I A Ts
wa g
l
a y may al have
va st to a1a1e �
�� Hth's Rponsibty
I
PARTS R f
f
de s lt tr f ca fr date
r. Ra s
a
t e r
t
inal
warran .Y
wa s dir fr Nh
by
a.zzzzzzzzzzzz:..
r
at
no
ar to
.Y must
u
at
yr
ee
to
Heath
fa. Htht Ec (uts of
Vt El
a). y
r az
ts. _
=
5
EFFECVE WARRTY D
ATE
Wanty ns
the date
first
r r
Y
suy
a
r
@
i;zzjziii........
5
i
=��=:;N�=::::,��
1::�h;��::::�;:,
(ancn a�
1�
nt t pals r et) e
by tis w a are
t
s ry
UNITS F e
itris in the ab maals Dage d to ie
i
n
rr u
warnt
Iyoete
wth
r
(wa
) u te
rly to r r
S
Hth
n Bt
H M1 4
He
t
me
n y ls
re
aiusu«wwwus
Heathkit® Manual
for the
SINGLE SIDEBAND
TRANSCEIVER
Model SB-104A
Assembly
595-19906
HEATH
COMPANY
BENTON HARBOR, MICHIGAN 49022
Cght
g
19
Hth Cpany
All Righ Resed
P
in
t
Ut St
Page
1-2
TABLE OF CONTENTS
CE
IEEE
INTRODUCTION ............•............
1-3
VFO FILTER AND DRIVER CIRCUIT BO RD
Parts st
1-73
Step-by-Step Assembly
1-76
VFO Filter Circuit Board ............•........
1-76
Driver Circuit Board................... 1-
LC/OUTPUT FILTER CIRCUIT BOARD
Parts st
1-83
Step-by-Step Assembly
1-86
CARRIER GENERATOR/XTAL FILTER
CIRCUIT BO RD
Parts st ..................................•....
1-91
Step-by-Step Assembly ................
1-95
RECEIVER IF/AUDIO CIRCUIT BOARD
Parts st ....................................•.
1-105
Step-by-Step Assembly .....................,,
1-110
POWER MPFIER CIRCUIT BO RD
Parts List.....8·-.8..8..8.8.....8.···.2·
··.,
1-11
Step-by-Step Assembly ....... ........8.......
1-121
Tra
n
s
r
m
er sse
m
b
ly .
.......•
..
..
.
.•..
.
..
1-125
T
ra
n
sist
o
r I
n
sta
ati
on
1-129
TRANSM
I
TTER AUDIO/RE
G
CIRCUIT B
O
RD
Parts s
i ,
. . . . . . . . . . . . . . .
.
. . . . . . . . . . . .
.
. .
.
.
.
. .
.
.
1-31
Step-by-Step Assembly
1-35
P
A
R
T
S P
A
C
KAGING
1-5
ASSEMBL
Y
NOTES ................•....
..
.•.....
1-7
CIRCU
B
O
RD ASSEMBL
Y
..
.
..
.
......•
•
......
1-9
VAR
IA
BL
E
FRE
Q
UENC
Y OSCILLATOR (VFO) AND
EXTENDER BOARD
Parts st
1-11
Ste
p
-by-Step Assemb
ly
Ex
te
n
der Cir
cu
it Bo
a
rd 1-
E
x
te
nd
er B
l
oc
k
. .
. . .
.
. . . . .
•
. . . . .
.
. . . . . . . .
.
1-18
Os
ci
ator C
i
r
c
uit Board . . . . . . . . . . . . . . • .
.
. . .
.
1-19
Buffer Circuit Board ...8·...8.8.8888..88....,
1-22
VFO Enosure
....2··2···.
1-25
H
FO
/
PR
E
MIXER C
I
RCUIT BOARD
Parts
st
1-41
Step-by-Step
A
sse
m
b
l
y . . . . . . . . . . . . . . .
.
. . . • • .
.
. .
1-46
CONVERTER
,
DISPLA
Y,
AND COUNTER
CIRCUIT BOARDS
Part
s Lis
t
1-55
Ste
p
-b
y
-Step Assemb
l
y . . . . . . .
.
. .
.
. . . .
.
. . . . .
. .
.
1-58
Conv
erter Circ
u
it Board .........•...
.
...
.
...
1-58
Display Cir
cu
it Bo
a
rd.. . .
.
. . . . • . . . . . . . . • .
.
1-61
Co
u
n
ter C
i
r
c
uit Boar
d
. . . . . .
. . . . . .
. .
.
. .
1-65
C
H
ASS
I
S ASS EMBL
Y
Pa
rts st .
.
..
.
..
..
..............•.........
...
.
.
1-133
Step-by-Step Assembl
y
1-143
C
ha
ssis P
a
rts Mou
n
ti
ng
1-143
C
h
assis Wiri
n
g
1-149
Wiring Harness
.....···.....0....09...,,
1-158
Parts
an
d Cables
1-166
Cable
Ha
es
s
............
.
.............•..
1-169
Rear Pa
n
e
l
1-172
U
nd
er-C
ha
ss
is W
iri
n
g
1-178
Top Cha
ssis ........8....-........0....
1-181
F
ro
n
t P
an
e
l
an
d VFO M
oun
ti
n
g
1-191
U
n
der-C
h
a
ssis Pa
n
el Mou
n
ti
n
g
1-197
K
no
bs a
n
d
S
haf
ts .............
.
.
.
...•...
.
..
1-198
INTRODUCTION
The Heathkit Mod SB-104A B a CW tran ceiver
ve the high equency amateur bands from
5
MHz
through 29.7 MHz. It is entirely solid-state a delive
approximately 100 was to the antenna. Howeve ,
it
can be
instantly itch to ORP operation, in whi h se a
minimum of one wa is deliver to the antenna.
Broadbandi eliminates the necessity to "p ak" circuits
within a ba. All that is necesry is just to tu the
Ba
switch and sele the desir frequency.
The equency to which the Transceiver is tuned is elec
tronicly disayed, which eminates the usual dial read
out. A unique frequency counter is employed which in
cludes a crystal-controed me base. Very high accuracy
is maintained on a bands and any re
q
uire
m
e
nt for a
calibr
a
tor is the
fore eminated
. A
red
w
i
n
d
ow, w
hi
c
h
provides subd ed lighting and high visibility, covers the
e
q
uency dis
p
lay, the
p
an
e
l meter
,
and a s
pa
c
e fo
r
sta
tion ca
l
e
ers
.
e Vox Gain and Vox Delay controls are
coeniently
l
ed on
e
ont
p
an
el
to
f
i
e
a
dju
s
en
r
o
pa
to
who
w
or
k
th
a
nd
SS
B.
Vax
or
P
i
s
p
u
ton-
l
t
, a e AGC on
c
an
be s
w
it
c
h
to
f
t
, s
lo
w,
or o
.
P
r
i
s
ion i
s
m
a
d
e
r A
LC i
n
t
o
m an
plifier, and relay contts are aable for tching an
plier bwn tranit and reive.
Th
e T
ranscei
v
er o
p
erates
f
rom
a 13.8 VDC p
o
w
er inpu
t,
which can be fu
is
hed
b
y a
p
o
w
er
s
u
pp
l
y
or d
i
re
ct o
m a
b
a
er
y
. The
p
anel meter can
b
e s
w
itched to re
a
d s
up
ply
v
o
a
g
e or re
l
ative
p
ower out
p
u
t; i
n the receive mod
e,
when
is switche
d t
o A
LC,
i
t
ac
t
s a
s
an
S
meter.
The
P
ower
A
m
pl
i
er circuit
b
oard ca
ie
s
a
special 1-year war
ranty -see "Circuit Board Seice Policy" on Page 2
-45
for com
p
l
ete deta
i
ls
.
HAHTT"
To
a
li
g
n
i
s
Tran
ei
v
er
, y
ou
ould h
ave
a
v
o
l
t-
mmet
w
ith
a
hi
oh
m
p
-vo
l
t r
a
t
in
g
a
nd
a 50
ohm dumm
y
l
pa
b
le o
f
d
i
ti
1
w
a
o
f
.
T
he
o
w
ing
c
r
ie
s
a
re al
a
a
b
l
e
r
u
wi
th
is
Traneiver
•
An
ce
n
bla
n
k
er
at c
a
n
in
to
r
uce
i
m
p
ul
p
e noi
.
A
f
r
ont
pa
ne
l
i
t
c
h i
s
i
l
u
d
r
i
s
c
.
•
A
v
er
y
v
er
t
i
l
e
c
VFO.
i
s
i
n
st
ru
m
en
t
includes a duicate of e VFO in e Traneiv a
a ihing circuit which permi you to teive
w
i
ei
th
e
Tr
a
n
ei
v
or the
a
c
V
FO,
or
to t
r
a
n
it
on e
i
th
VFO a
n
d
to
r
e
i
v
e
on
e o
.
Thi
s
in
s
m
ent
i
s p
a
icula
r
l
y
a
pp
li
n
g
to t
h
erato who communicate with tions opating
split-fruency.
•
A n
a
ow
ter
r
C
W
o
p
eraon.
Sp
a
ce is
p
ro
v
ided
f
or it on the
carrier generator/XTAL filter
circui
t
board.
•
An A
C
-o
p
erated
p
o
w
er
s
u
p
p
l
y
,
as we as a spea
k
er
in a matchin
g
c
ab
i
n
e
The
p
o
w
er supp
l
y
ca
n
b
e
instaed in the s
p
eaker
c
a
b
in
e
R
e
f
er to the
"K
i
t
B
u
der
s
G
uide
"
f
or informa
o
n on t
ls
,
w
i
n
g
,
solde
n
g,
re
s
i
s
to
,
d
a
to
.
1
Page 1
CE
EE
PARTS PACKAGING
PARTS PACK
10
The Transceiver shipping carton contains a box marked
"Packs 1 9 TOP.·· After you remove this box, the remain
ing parts in the shipping carton form Parts Pack #10,
which are items too large to fit into the other parts packs,
pas used for several circuit boards, and those items
which you wi use in the chassis assembly sections.
Open the "TOP" side of the box marked Packs 1-9. Under
the cover you wi find a "Pack Index Sheet" lying on top of
IAHKIT'
the contents. This sheet shows you the location of each
parts pack in the box. DO NOT disturb any of these packs
yet.
Each assembly secon of the Manual contains its own
Parts st and Step-by Step Assembly instructions. At the
beginning of each Parts st you wi be told which parts
pack to remove from the box and open. You may also be
directed to remove certain required parts from pack
#
10.
To avoid intermixing parts, do not remove or open any of
the parts packs until directed to do so at the beginning of
one of the Parts sts. Any part that is packed in an indi
vidual envelope with a part number on it should be placed
back in its envelope after you identify it until that part is
caed for in a step. Some envelopes have one side trans
parent so the parts inside can be identified without open
ing the envelope.
In the shipping carton is a flaened cardboard carton
marked with red. Save this caon. Its use is described in
"Circuit Board Service Policy" on Page 2-45.
1-5
Page
1-6
CE
IESE
ASSEMBL V NOTES
e ably of your traneiver is divid into o
prinl stions e circuit boards and e chassis. The
uit ards and cerin suembes wi be but rst,
and en laid aside, so eh one
w
be avaable when
it
is
ruir r e chais assembly.
A soldering in rat a 15 to 25 was is preferr. A
1/16" or 1/8" pyramidal or chil ip is bt. is type of
ldering in wi ma e the kit sier to aemble and there
wi be l chae of sold bridg curring beeen ils
on e circuit rd (when lder conn o ils
unin en ionay, it is ca a ld "bridge"). Be re to
apply enough h e solder fls ealy and h a iny
ace when
it
cools; how, an exceive amount of ht
can metimes cau e foil to sarate fm the circuit
rd, be carefu
U only e amou of solder ruir to make a od
conntion, as own in e
"Kit
Buders Guide." The u
of an excive amount of solder does n improve e
eltric l conntion, and you may run out of sold bore
you cple he assembly of your Traneiver. If you do
n out of lder, be sure you buy only rin core sold e
u of id core lder wi void your rran.
No ice e ldi abbria ions us in he s eps. (NS)
means no o lder bau oer wir wi be add later.
S-"
wi a number, as (3), means o lder e
conn ion. e numb owing e
"S"
lls how many
wires are
e conntion. here a wire pas rou a
conntion and go to anher point,
it
coun as o
wir.)
NOTE: Always use rosin core, radipe sold (60:40 or :
tin-lead ntent) for a of the soldeng in this ki This is the pe
we have supp with the pas. The Warran be vd and
we not seice
a
n
y
kit in whi
acid
re solder or paste ha
s
b
e
e
n us.
HEATHKIT
R
esis ors ar
e
digna by eir color
nds and eir
ristance in
(ohms), k ( iloh), or M2 (mms).
e ristor color code is explain in e "Kit Buder
G
uide.
"
ci
s are digna by
h
eir cap
i a
e value
and
pe.
E
a
c
h pa
repren on e
h
atic diagrams has a
com
ponen numb which is compos of a l
ow
by
a numb. Th compont numbe are u in e
P
a
s
s
,
e a
bly s
t
eps
,
and in oer pa
of e
M nual for pas identic tion. A ic group of numbs
is aign o
h individ
u
al
rcuit board
,
c
h
as
0 o
4
99
r he
HFO
circuit
ard.
us
,
h
e
r
r
is or on
is
ard is
mbered R401, the
si
x
ca
p
i or
i
s
numb 6, etc. R
efer o he
hema ic No
r a li
of e number gups.
Always tighten hardware when you in
it
unle you are
instct to lve
it
loo.
E ch circuit p in this kit h s its own component numr
(R2, , c.). U
se h
e numb
e
rs when you wan
t t
o
positively identify the same pa in the various secti ns of
th
e M
anual. These n
u
mbe
,
which ar
e
espiay useful if a
par has to
re
p
lac
,
appear:
In the s list,
At
h
e
inning of
e
ach s
te
p wher
e
a componen
t
is
in
aed
,
In me ustrations,
I
n th
e
Sch
e
ma ic
,
In the sections at the rear of the Manual.
Some iustr tions re too l rge r this Manu l and wi be
und in the "Iustr tion Booklet." You w be direct to
this Bookl when necessary. The iur tions are rrang
in the order in which you wl u them.
1-7
Page 1-8
CE
IESE
CIRCUIT BOARD ASSEMBL V
fe stai to asble is kit, be re you he rd
e wiring, soldi, and st-by-st a embly infoation
in the "Kit Builde Guide."
Unl you are oeise
instct,
pa will be
ill
on e top side of eh circuit brd (e side with the
cponent outlin), a e les wi be solder to the
foil (oer) side. ld e les only to e foil side of the
circu t ard unle you are spicay instruct
oei. re you clip o the exc lenh of eh lead
( illur in the "Kit Builds Guide"), look at e
junction of the lead a the il to make sure e lead has
en lder.
Take your me while abli the ciuit board
accury is r more impont than sp. Position each
c ont over its tline on the circuit rd a lder
eh connon carelly, as improper soldering caus
more difculty than anhing el. Be carel not to cover
unu hol with sold or to rm a ld "brid"
twn o ils.
Most circuit ards are idtifi
by
eir rt number
Th are li in eh Par st and print on e
component side of each circuit board. When you have
nish mounting the a on a circuit board, t the board
aside unt it is r later in e aembly instctions.
Use 1/2 wa
tt 5% t
ol
e
ran
ce
(
f
our
t
h band
g
o
l
d
)
re
sist
or
s
u
nle
ss
di
recte
d
ot
h
e
rw
ise
in a
step
.
T
h
e f
ou
rt
h b
a
nd i
s
silver
for
10% tolerance resistors.
HEATHKIT
you ill a traistor on a circuit rd, lve about
1/4
n
the trans
i
stor bod
and the circuit
b
rd
. T
he
instructions will int out any exceptions.
Transistors are mark for identification in one of the
owi ur ways:
1
.
P
a
numb.
2. Ty numb.
3. Pa numb and type number.
4
.
P
art number with a ty
p
e numb other than
e
o
n
e li
.
NOTES:
• pas, riors and all elolytic
citors, may be mount vically. me of the
mounting details ow the ies of e dic
el
a
e the circu
rd to clar
i
f
y
the
u
t
ing
of e les.
• Be
fo
re you
ld
,
e
h pa
(
exc
t transistors
)
down against
e circuit board.
e Sold a pa, or a group of par, only en
inst
ct
to do
.
F
o
o
w
e instructions car
e
y
and re e entire bly ep fore y form
e
h operation.
1-9
Page 1-10
C
EIEEE
VARIABLE FREQUENCY
OSCILLATOR (VFO)
AND E TENDER BOARD
PARTS LIST
Remove e pas fr Pack #1 and chk eh a against
e owing list. Make a chk () in the spe provid as
you identify eh . Any that is pk in an
individual envelope with e art number on it ould
pl k in e eelope aer you identify it until it is
r in a
.
Do n row away any packing
merials unt a r are cou for.
QTY. DESCRIPTION HEATH CIRCUIT
No. Component No.
RESISTORS, 1/2-Watt
2 47
Q
(yellow-violet 6-470 R1205, R1237
black)
2 100
0
(brown-black 6-101 R1226, R1228
brown)
150
0
(brown-green 6-151 R1206
brown)
3 470
Q
(yell
ow-violet 6-471
R
1
20
3
, R1233,
b
wn)
R1236
1 1200
Q
(br wn-red-red) 6-122 R1201
2
3300
0
(orange-orange-6-332 R1231, R1234
red
)
3900
Q
(orange-white 6-392
R1227
red
)
EAHIT
1-11
Page 1-12
CEIEEH
CAPACITORS
Resistors (cont'd.)
2 22k0 (red-red
orange)
22 kn (red-red
yellow)
1
M
(brown-bla
green)
2000 control
QTY.
DESCRIPTION HEATH
No.
6-223
6-224
6-105
10-398
CIRCUIT
Component No.
1229,
R1235
R1225
R12 4
R1232
Mica
(
)
( ) 1
( ) 2
(
)
Disc
12 pf
0 pf
470 pF
680 pF
20-130
20-116
20-128
20-107
C1209
C1233
C1229, C1231
C1234
2
RF choke
INDUCTORS
�I
%
.e
9
•
-5
201
L1202,
L1203
RFC1201,
RFC1202
C1201
C1211
C1212
C1202
C1214
C1216
C120
3
C1204
c1227
C1205,
C12
C1207
C1225
1208
C1
2
13
,
C1215,
C1226,
C1228,
C1232
452
40-1720
-16
26-148
31-63
21-29
21-169
21-3
21-111
21-190
21-160
21-56
21-159
21-191
21-140
21-27
2147
6 pF, N470
10 pf
15
pF, NPO
50 pF, N150
56 pF, N75
470 pf
510 pF, N750
1
Va
r
ia
ble
i
nd
u
or
2
T
o
i
d co
i
l
Other Capacitors
( ) 1
Tu
n
i
n
g
c
a
p
it
o
r
( ) 1560pF t
r
i
m
m
e
r
( I
4. 7 p
F
cer
ami
c
510
pF,
N15
.1 F
.5
F
5
.01F
1
2
GIE
Page 1-13
)
)
)
0TY.
1
3
1
DESCRIPTION
1N458 di
1N4149 diode
VR7 .5 z n r di
HEATH
No.
-24
56-56
-97
CIRCUIT
mpon nt No.
•
D1201
/
f
D1202, D1203, D1204
h
ZD1201
DIODES-TRANSISTORS
NOTE: Transistors may b mark in any of the owing
fr ways.
1
2
1
2N3393 transistor
MPF 105 transistor
2N3638A transistor
VFO chais
VFO shi ld
VFO bracket
417-118
417-169
417-2
206-1104
206-1168
201962
€
01204
01202, 01203
01205
\
Pa numb r.
2. Type numb r.
3. Pa numr and typ number.
4.
Pa numb r and a p numb r o an th
one
li.
METAL PARTS
Page 1-14
0T
HARDWARE
#4 Hardware
( ) 4
( ) 4
( ) 4
#6 Hardwa
( ) 4
( ) 2
( ) 18
2
4
2
2
DESCRIPTION
4-40 x 5/8" r
4-40 n t
#4
lk waer
6-32 x 3/16" screw
6-32 x 1/4" screw
#6 x 3/8" sheet mal
screw
6-32x 1/2" flat head
scr
#6 lockwasher
#6 lder lug
#6 plain solder
lug
HEATH
No.
25 323
252-15
254-9
2-138
2-56
250-475
2-11
2-1
259-1
259-6
257
255-1
252
255-21
2-13
253-
255-102
253-36
432-124
CIRCUIT
Component No.
CE
E
Other Hardre
( ) 1 ntl nut
( ) 8 1/8"
er
()
2 3
/
1
6"
er
( ) 2 7/8" cer
Drive Aaing Hardware
( ) 2 632x1"s rew
( ) 4 #6 at
w
her
( ) 2 7/16" spacer
() Spring waer
CONNECTORS
(
)
48 C
i
rc
i
t
r
d
conntor
(
)
4
Female tminal
2-855
1
+"
24
Male conntor
housing
Extender p
i
n
432-817
262-24
CIEEE
Page 1-15
PARTS FROM PACK #10 (pas In the shipping caon)
NOTE: Remove the wire bundle. C t o lengths when you
are directed to do so by the assembly steps in the various
sections of the Manua Use solid wire in steps unless
otherwise specied.
Osciator circ it
85-1205-7
board
Buer circuit
85-1206-3
board
1
Extender board
85-1465
1' ��-
OR
<¢
U
O
CIRCUIT
No. mponent No.
1016
100-1041
HEATH
Veier drive
o shaft)
Veier drive
(o a)
DESCRIPTION
1
aTY.
ISCELLANEOUS
( )
2
Fi paper 75-90
( )
1 Heat sink 215-63
( )
Cent
()
3-12
(
)
2 Board puer 207-80
( )
4 Exteer blk 25108
Nut er 495
Wire bundle consisting of:
(
)
13'-8 /2"
Small bare wire
340-2
( )
1'
rge bare wire
340-3
( )
12' 1/
Shield cable
343-15
(
)
2
Large orange wire
344-30
(
)
9
Red wire
344-52
(
)
Sma orange wire
344
( )
28 1/2
Gray wire
344-
(
)
1'
Blue wire
344-96
(
)
Stranded white wire
344-109
(
)
3-1/2°
nG-58A/U coaxial
343-2
cable
6"
Fiber sleeving
346-4
1'
Sma sleeving
346-1
1'
Large sleeving
346-20
(heat shrinkable)
(
)
Solder
Page
1-16
0TY.
DESCRIPTION
Terminal idencatio
label
ll leers la
Black stri label
Blue a white
identcation label S
note below.
Parts Order Form
Kit Builde Guide
Aembly Manual
(See Page 1-1
r pa number.)
Operation and
maintenance Manual
(See Page 2-1
r part number.)
HEATH
No.
3-15
31087
390-1090
597-260
597-308
CIRCUIT
mponent No.
C
E
EEE
tr4rt
44t 4f
At
i
$1
i
4$
I4
n
tt'4
n
ti
it%
l
ii
(4i
¥¢
Parts From Pack #10 (cont'd.)
LABEL NOTE: Fi the blue a white label in your kit.
Now py he numbers
from
it
onto the space provid in
the iustration ave. Refer to these numbers in any
mmunitio you have with the Heath mpany about
this
kit.
To order a replacement part, always include the PART
NUMBER. Use the Parts Order rm fuished with this kit.
If
ne is not
available, see "Replacement Parts" inside the
rear cover of this Manua Your Warranty is loted inside
the fnt cover. For pricing inrmation, r fer to the
separate "Heath Pas Price
."
C
E
IE
Page 1-17
STEP-BY-STEP ASSEMBLY
EXTENDER CIRCUIT BOARD
Place the extender board (#85-1465) oil
side d.
Six circuit ard nntors.
Six circuit rd nneors.
B.
Position the fle in the
cirit ard hole; then pu the
le rt throh t fe rt to
t top of the ard.
It is imant tt you orm t
ckout oure after ea cirit
d is mplet.
refully ins the foil
of e circuit
ard for t followi nly
e errors. nsult your "Kit Builders
Guide" to rey the oble
if
any
exist.
Circuit Board Chkout
Look at the nneor row to be
sure t deess e of the
ntact
of ea
nor is toward
the center
of
the cirit ard.
Six circuit ard nneors.
Six cirit ard nctors.
CIRCUIT BOARD
EDGE
DEPRESS£D
CONlACT�
COMPO[NT �I RIDGES
S DE OF
ClRCUII �
Boo
j
>
%7
Six circuit ard nneors.
Six c
irit d nnectors.
Six circuit ar nnor
Six cirit ard nors.
lnall e circuit d nnector in the
followi manr. Note that inse ea
nneor the spri nta is depress
o
e. This dees
e
of the
nneor must face away from the ge
of the cirit d. In the unti
ta throh the cirit d until the
ridges of the nneor are firmly ain t
the circuit ard. ld the ts to the
foil
PICTORIAL 1-1
Un nio
"Co"
er nneion
lder bries between foil patterns.
Page 1-18
XTENDER BLOCK
Find e ur extend blks and the ent -ur
exteer pins.
Posion an extender block as shown. Then refer to
Detl 1-2A and inse the long end of an extender
pin into the block. Push the pin into the block unt
the ridge is against the block. The pins are a ght
A
sma hammer may be helpful.
In an extder pin in each of e ve remaining
hol in the extend blk.
In extend pins in the raining r nder
blks.
Plug the ur exnder blocks into the circuit board
nneo on the ee of the extender rd which
has the ard pue.
the exnder ard aside. It w
used later.
Detail 1-2A
EXTENDER
BL0CK
R f to Pictorial 1-2 for the owing sts.
PICTORIAL 1-2
Other Heath Transceiver manuals
