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Tektronix 178 User manual

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ι
ι
178
577
D
1
/D2
S
ERV
IC
E
W
A
RN
I
N
G
Teldfun
m
@
THE
F
O
LL
O
W
I
N
G
S
ERV
ICI
N
G
I
N
ST
RU
CTION
S
A
RE
F
O
R US
E
BYQ
U
A
L
I
F
I
E
D
PER
SO
NNEL
O
NL
Y
.
T
O A
V
OID
PER
SO
NA
L
I
NJUR
Y,
DO NOT
PERF
O
RM
ANY
S
ERV
ICI
N
G OT
HER
THAN
THAT
CO
N
TAI
NE
D
IN
O
PER
ATI
N
G
I
N
ST
RU
CTIONS
UNLESS
YO
U
A
RE
Q
U
A
L
I
F
I
E
D
TO
DOSO
.
COMMITTED
TO
E
XCELLENCE
PLE
AS
E
C
HE
C
K
F
O
R
C
H
A
N
G
E
I
NF
O
RM
ATIO
N
AT
THE
RE
AR
O
F
T
H
IS
M
A
NU
A
L
.
178
577
D1/D2
S
ERV
IC
E
I
N
ST
RU
CTIO
N
M
A
NU
A
L
Tektronix,
Inc
.
Ρ
.
Ο
.
Box
500
B
eaverton,
Oregon

97077

Serial
N
umber
070-1978-00

F
irst
Printing
SEP
1977
Product
Group
48

R
evised
APR
1985
Co
p
y
r
ig
h
t
f1977 Tek
tronix, Inc
.
All rig
h
ts
rese
r
ve
d
.
Contents
of
t
h
is
pub
licatio
n
may
not
be
re
produced
i
n
any
form
wit
h
out
t
he
written
permissio
n
of
Tek
tr
on
ix,
I
n
c
.
Products
of
Tek
tronix,
I
n
c
.
and
its
su
b
sidiaries
are
covered
by
U
.S
.
and
foreign
patents
an
d
/or
pen
d
ing
pate
nts
.
TEKT
R
O
N
IX,
ΤΕΚ
,
SCO
PE-M
OB
I
LE,
a
n
d

a
r
e
registe
r
ed
trademar
k s of
Te
k tronix,
Inc
.
T
ELE
Q
U
I
PMEN
T
is
α
registere
d
t
r
adema
rk of
Te
k
t r
onix
U
.
K
.
L
imited
.
Pr
i
n
ted
i
n
U
.S .A
.
Sp
ecification
an
d
price
ch
ange
p
r
ivileges
a
r
e
r
eserved
.
IN
ST
RUMEN
T
S
ER
IA
L
NUMBER
S
Eac
h
instrument
h
as
α
serial
n
um
b
er
on α
par)el
insert,
tag,
o
r
stampe
d
on
t
he
ch
assis
.
T
h
e
first
num
b
er
o
r
lette
r
d
esignates
t
he cou
ntry of
man
u
fact
ur
e
.
T
he
last
five
digits
of
t
h
e
serial
n
um
b
er
are
assigne
d
seq
u
entially
a
nd
are
u
n
i
que
to
eac
hinstru
m
e
n
t
.
T
h
ose
manufact
u re
d
in t
he
United
States
have
six
un
i
qu
e
digits
.
T
h
e cou
n
try
of
manufacture
is
i
d
entifie
d
as
follows
:
ΒΟΟΟΟΟΟ

Te
k
tro
n
ix,
I
n
c
.,
B
eaverto
n
,
Oregon,
USA
100000

Te
k
tro n
ix
G
u
er
n
sey,
Ltd
.,
C
h
ann
el
Islan
d
s
200000

Te
k
t r
o
n
ix
Un
ited
K
i
n
gdom,
L
td
.,
L
on
d
on
300000

So
n
y/Te
k
t
r
o
n
ix,
J
ap
a
n
700000

Te
k
t
r
onix Hollan
d
,
NV,
Hee
r
e
n
vee
n
,
T
he Net
h erla n
ds
TABLE
OF
CONTENTS
P
age
SE
CTIO
N
1

S
PE
CI
F
ICATIO
N
1-1
SE
CTIO
N 2

O
PER
ATI
NG
I
NFO
R
M
ATIO
N

2-1
SE
CTIO
N
3

CI
RCU
IT
D
E
SC
R
I
P
TIO
N

3-1
SE
CTIO
N
4

M
AI
N
T
EN
A
NC
E
4-1
I
n
t
r
odu
ctio
n
4-1
PREVEN
TI
VE
M
AI
N
T
ENANC
E

4-1
Ge
n
eral

4-1
Clea
n
i
n
g

4-1
Lubr
icatio
n
4-1
V
isual
I
n
s
p
ection

4-1
T
r
a
n
sisto
r
s a
nd
I
nteg
r
ated
Ci
r
cu
its

4-1
R
ecal
ib
r
atio
n

4-1
TR
O
UBLE
S
H
OOTI
NG

4-2
I
n
t
r
odu
ction
4-2
T
r
ou
bles
h
ooti
n
g
Equ
i
pm
e
n
t

4-2
T
r
o
ub
les
h
ooti
n
g
Aids

4-2
Access
to
Ci
r
c
u
it
B
oa
rd
s

4-2
R
emovi
n
g
t
he
V
ertical
P
reamp
a
nd
F
ee
db
ac
k
Amplifie
r
B
oar
ds

4-4
Re
m
ovi
ng
and
R
e
p
laci
n
g
t
heF
ee
dbac
k
a
nd
V
ert
P
reamp
B
oar
ds
f
r
om
Cam-Switc
h
Assem
b
ly

4-6
Cam
Switc
h
R
e
p
ai
r
a
nd
R
e
p
laceme
n
t

4-6
R
e
m
oval of
Sto
r
age
Co
mp
art
m
en
t
S
h
iel
d
s

4-8
R
emoval
-
R
ig
h
t
Sh
iel
d
4=8
R
e
m
oval
-
L
eft
S
h
iel
d
4-8
R
e
p
lacement
of
Sto
r
age
Compartme
n
t
S
h
iel
d
-
L
eft
Si
de

4-9
R
e
p
lace
m
en
t
of
Sto
r
age
Comp
art
m
e
n
t
S
h
iel
d
-
R
ig
h
t
Si
d
e

4-10
SE
CTIO
N
5

PERF
O
RM
A
NC
E
CHEC
K
/AD
JUST
MEN
TPR
OC
ED
URE

5-1
I
n
tro
du
ctio
n
5-1
Services
Availa
b
le

5-1
Test
Equ
i
p
me
n
t
R
e
qu
i
r
ed

5-1
P
erfo
r
ma
n
ce
C
hec
k
5-2
A
dju
st
m
en
t
Pr
oce
dur
e

5-12
S
E
CTIO
N
6

REPL
AC
E
A
BLEELE
CT
R
ICA
L P
A
R
TS
SE
CTIO
N
7

SC
HEM
ATIC
DIAG
R
A
M
S &
CI
R
CU
IT
B
OA
R
D
I
LLU
ST
R
ATIO
N
S
SE
CTIO
N
Β

REPL
AC
E
A
BLE
ME
C
HAN
ICA
L P
A
R
TS
&
I
LLU
STR
ATIO
N
S
C
H
ANG
E
I
NF
O
RM
ATIO
N
178
Service
178
Service
Fig
.
1-1
.
178
Linear
Integrated
Circuit
Test
Fixture
.
SPECIFICATION
Sectio
n
1-178
Service
Int
r
od
u
ctio
n

Th
e
vertical d
eflectio
n
factor
switc
h h
as
28
positio
n
s
r
a
nging
fr
o
m
50
ρ
/Div
to
50
m/Div
(
un
mag
n
ifie
d
)
in
a
1-2-5
se
q
ue
nce
.
All
28
p
ositio
ns a
r
eu
se
d
for
cu
rre
n
t
T
he 178
L
i
nea
r
IC Test
F
ixtu
r
e
is
α
plug-in
device
for

m
easu
r
eme
n
ts,
b
ut
only
t
he
r
a
nge
f
r
om
10
μ
/Div
to
50
use
wit
h
t
he
577-D1
or
577-D2
Curve
T
r
ace
r
Syste
m
s
.
T
he

m
/Div
ca
nbe
use
d
fo
r
voltage
meas
u
reme
n
ts
.
Any
attem
p
t
577-178
combi
n
atio
n
,
wit
h
t
h
e
D1 Dis
p
lay
Un
it
module,
is

to
m
eas
ur
e voltage
u
si
n
g
vertical
d
eflectio
n
factors
less
design
ed
to
measu
r
e
t
hepa
r
a
m
ete
r
s
of
o
pe
r
atio
n
al

t
h
a
n10
μV
/Div
(
un
mag
n
ifie
d
)
ca
usest
heV
O
L
TS
indicator
am
p
lifiers,

com
p
arators,

d
iffere
n
tial

a
mp
lifie
r
s,

and

lig
h
t
to
t
u
r
n
off,
in
d
icati
n
g
an
u
nusab
le
switc
h
position
.
regulators
.
T
he
D2
Disp
lay
Un
it
may
be
use
d
,
but
lac
k
i
ng
d
is
p
lay
storage,
t
he
r
esults
may
n
ot
b
e
satisfactory
b
ecause
of
t
h
e
low
fre
q
ue
n
cies
n
ecessary
to
test
m
any

Vertical
d
eflection
factor
is
i
ncreasedby
te
n
w
hen
t
he
devices
.

V
ertical
P
OSITIO
N
Χ
10
VER
T
M
AG
kn
ob
on
t
he
577
is
pu
lle
d
to
t
h
eo
u
twa
rd
position
;
t
he
i
ncrease
is
in
d
icate
d
by
t
h
e
lamp
b
e
h
i
nd
t
h
e
VER
T
UN
ITS/DI
V
k
nob
sk
irt
.
T
h
is
The
178
L
i
near
IC
Test F
ixt
ur
e
feat
ures
α
swee
p
lam
p
also
tur
ns
off
if
an
u
nusable
switc
h
p
ositio
n
is
generato
r
,
p
ositive
a
nd
n
egative
s
upp
lies,
p
a
rt
of
t
he

selected
.
vertical
meas
u
ri
n
g
system, α
fee
db
ac
kloop
for
t
h
e
Device
Und
er
Test
(D
U
T),
a
nd
switc
h
i
n
g
ca
pa
b
ilities
to
facilitate
testi
ng
of
vario
u
s
paramete
r
s
und
er
d
iverse
co
nd
itio
ns
.

ΑFUN
CTIO
N
selecto
r
switc
h pr
ovi
d
es
eleven
test
p
ositio
ns
.
All
p
ositio
n
s
a
r
e
usef
u
l
to
test
o
p
e
r
atio
n
al
amplifie
r
s
.
T
he
swee
p
ge
n
erator
provi
d
es
α
varia
b
le
freq
u
e
n
cy,
0
.01
H
z
to
1
kH
z
sin
u
soi
d
al
o
u
tp
u
t
.
T
h
is
o
u
t
pu
t
is
use
d
to
force
t
he
D
U
T
o
u
t
pu
t
orthe
positive
a
nd
negative
su
p
p
lies

H
orizontal
deflection
facto
r
s
range
from
50
mV
/Div
to
(eit
he
r
in-p
h
ase
or
o
u
t-of-p
h
ase),
or
to
swee
p
t
he
D
U
T

200
V
/Div
(u
n
magnified),
a
nd
a
r
e
selecte
df
r
o
m
t
he
i
np
uts
.

CO
LLE
CTO
R
V
O
L
TS
seg
m
en
t
of
t
he
577
H
O
R
IZ
V
O
L
TS/DI
V
switc
h
.
The
do
voltage
levels
of
b
ot
h p
ositive
an
d
negative
su p
plies
are
i
nd
epen
d
en
tly
adju
sta
b
le
fr
om
0
to
30
volts
.
T
he
n
egative
s
upp
ly
am
p
lit
ude
can
b
e
m
ad
e
to
t
r
ack
(
h
ave
t
he
same
a
b
sol
u
te
val
ue
as)
t
h
ep
ositive
su
pp
ly
a
mp
litu
d
e
.
T
he
maxim
u
m
cu
r
r
e
n
t
ca
pa
b
ility
of
t
h
e
p
ositive
a
nd
n
egative
s
u
pplies
can
b
e
limite
d by
p
oten
tio
m
ete
r
s on
t
he
D
U
T
ca
rd
.
If
t
h
e
loa
d
c
u
r
r
en
t
atte
mp
ts
to
excee
d
t
h
e
set
li
m
its,
t
h
e
su
pply
cu
rre
n
t
limits
a
ndα
lam
p
fo
r
eac
h
sup
p
ly
i
n
dicates
t
h
e
co
nd
itio
n
.
Any
pair
(of
fo
u
r
p
airs)
of
i
n
te
rn
al
sou
r
ce
r
esistors
can
be
use
d
in
series
wit
h
t
he
am
p
lifie
r
i
np
uts
.
A
n
y
value
of
exte
rn
al
sou
r
ce
r
esista
nce
can
b
e
a
dd
ed
to
t
h
eDUT
ca
r
d
.
T
h
e
D
U
T
out
p
ut
can
be
loa
d
ed
wit
h
one
of
sevenvalues
of
inter
n
al
loa
d
r
esista
nce
.
Any
value of
exter
n
al
loa
d
resistance
can
b
e
a
d
de
d
to
t
h
eD
U
T
card
i
n
pa
r
allel
wit
h
t
he 50 k
Ω
of
r
esista
n
ce
pr
ovi
d
ed
on
t
h
e card
.
T
he
vertical
m
eas
u
rement
system
is
ca
p
able
of
measur-
i
n
g
eit
he
r
voltage
or
cu
rrent
.
T
h
ec
h
oice
of
voltage
or

T
he
store
d d
isplay
on
t
h
e
D1 Disp
lay
U
nit
is
erased
cu
rr
en
t
m
easu
reme
n
t
is
d
etermi
n
ed
by
t
he
p
ositio
n
of
t
he

w
h
e
neve
rt
he
FUN
CTIO
N
switch
is
changed
,
exce
p
t
w
hen
FUN
CTIO
N
switc
h
a
nd
is
i
nd
icated
by
t
h
e
AMP
S
or

switc
h
i
ng
b
etween
+I
NPUT
Ι
an
d
-I
NPU
T
Ι,
+
PS
RR
and
V
O
L
TS
lamp
.

-P
S
RR,
and
+S
UPPL
Y
Ι
a
nd
-S
UPPL
Y
Ι
.
T
he
Sta
nd
ard
Op
Am
pcar
d
can
b
e
u
sed
to
test
si
n
gle,
du
al,
andqua
d
ope
r
atio
n
al
am
p
lifiers
.
It
can
also
b
e
use
d
to
test
si
ngle a
nd du
al
comparators
an d d
ifferential
a
mp
lifiers
.
R
eg
u
lator
card
s
are
u
se
d
to
test
t
hr
ee-terminal
reg
u
lator
p
arameters
.
T
hese
r
eg
u
lator
cards
a
r
e
optio
n
al
accesso
r
ies
a
nd
a
r
e
cove
r
ed
on
se
p
arate
d
ata
sh
eets
.
IC
soc
k
et-
p
in
config
u
rations
m
u
st
be
connecte
d
to
t
hecards
b
y
u
si
nga
da
p
ter
soc
k
ets
an
d p
atc
h
co
r
ds
.
An
offset
Z
ER
O
bu
tto
n
provides
αzero
crt
display
reference
an
d n
ulls
offset
voltage
fo
r
certai
n
m
easu
r
e
m
en
ts
t
h
at
would
ot
he
r
wise
be
off
sc
r
een
.
Offset
is
usually
r
eset
auto
m
atically
w
h
en
t
h
e
setti
ng
of
t
he
FUN
CTIO
N
switc
h
is
chan
ge
d
.
Offset
must
b
e
r
eset
ma
n
ually
w
hen
switc
h
i
n
g
b
etwee
n
1
a
nd
.5
mV
/DI
V
a
nd
betwee
n
.1
mV
and
50
μ
V
/DI
V
.
S
p
ecification-178
Service
The
elect
r
ical
cha
r
acteristics
i
n
t
he
followi
n
g
table
are

Items
listed in
t
h
eP
erfo
r
ma
nce
R
eq
u
ire
m
e
n
ts
col
u
mn
vali
d
only
if
t
h
e
i
n
str
u
ment
h
as b
ee
n
calibrated
at
an

of
t
he E
lect
r
ical
C
ha
r
acte
r
istics
are
verifie
d
by
com
p
leting
am
b
ie
n
t
tem
pe
r
at
ur
e
b
etween
+20°
C
an d
+30°
C,
and
t
he

t
h
eP
erformance
C
h
ec
k
i
n
t
h
is
ma
nu
al
.
Items
liste
d
in
t
he
i
n
st
r
ume
n
t

is

o
p
erati
n
g
at
an

am
b
ient
tem
p
erature

S
upp
leme
n
tal
I
n
fo
rm
atio
n
column
a
r
e
n
ot
ve
r
ifie
d
in
t
h
is
b
etwee
n
O'
C
a
nd
+50
0
C
(
u
nless
ot
herwise
n
ote
d
)
.

m
a
nu
al
;
t
hey are
eit
h
e
r
exp
la
n
atory
notes o
r
pe
r
forma
nce
ch
aracteristics
fo
r
w
h
ic
h
no
limits
are s
p
ecifie
d
.
V
ertical
Deflection
Facto
r
s
I
npu
t
C
u
rrent
(
Ιη

50 ρΑ
/DI
V
to
.2
mA/DI
V
i
nα
1-2-5
se
+I
np
ut
Ι
a
nd -Inp
u
t
Ι

q
ue
n
ce,
u
nm
ag
n
ifie
d
.
F
un
ctio
n
s
Accu
r
acy'
V
oltage"
C
h
aracteristic
C
MRR
Fun
ction
Accu
r
acy
PS
RR
Fu
nctio
n
Accuracy
Ta
b
le
1-1
ELE
CT
R
ICA
L
C
HA
R
ACT
ER
ISTICS
P
erformance
R
e
q
ui
r
eme
n
t
5
ρΑ
/DI
V
to
20
μΑ
/DI
V
wit
h
10
Χ
m
ag
n
ifier
on
.
W
it
h
in
t3°/
ο
±50
ρΑ
,
u
n
mag
n
ified
.
W
it
h
i
n
t4°/
ο
±50
ρΑ
w
it
h
10
Χ
m
ag
n
ifie
r
on
.
10
μ
V
/DI
V
to
50
m
V
/DI
V
i
n
α
1-2-5
se-
quen
ce,
un
mag
n
ified
.
1
μV
/DI
V
to
5
mV
/DI
V
with 10
Χ
mag
n
ifier
on
.
GAI
Na
nd
O
FF
S
ET
V

W
it
h
i
n
f3°/
ο
,
u
nmag
n
ified
;
f4°1
ο
wit
h 10
Χ
F
un
ctions
Acc
ur
acy'

~
m
ag
n
ifie
r
on
.
Within
±3°
k
+

G~
ΟΟΚ
Κ

%+150
μ
V
Ν
.
Within
±4°/
ο
+

G
αΊη
0
Κ
Κ

°
ο
±
1
Κ
μ
V
Ν
,
.
wit
h10
Χ
m
ag
n
ifier
on
(1
μV
/DI
V
to
5
μV
/DI
V
,
see
foot
n
otes
b
a
nd
ε
)
.
W
it
h
i
n
t3°/
ο
+

100
Κ

°/
ο
Gain
-
Κ
W
it
h
i
n
t4°/
ο
+

100
Κ

%
with
10
Χ
Gai
n
-
Κ
mag
n
ifie
r
on
(1
μV
/DI
V
to
5
μ
V
/DI
V
;
See
foot
n
otes
b
an
d
ε
)
.
'Acc
ur
acies
a r
e
t
he
h
ig
h
est
p
erce
n
tage of
on-screen
val
u
es
.
'V
ertical
m
ag
n
i
ficatio
n
is
not
r
eco
mm
ended
fo
r
.5
m
V
/DI
V
t
hr
oug
h
50
mV
/DI
V
unmag
n
ifle
d
setti
n
gs
.
S
u
p
p
le
m
e
n
tal
I
n
fo
rm
atio
n
`D
U
T
gai
n
w
it
hs
m
all
voltage
sig
n
al
o
u
t
n
ea
r
ze
r
o
wit
h50 k
Ω
loa
d
:
Κ
=10
f
o
r
50
m
V
/Div
to
1
m
V
/Div,
Κ
=100
fo
r
.5
m
V/D
i
v
to
100
μ
/Div,
and
Κ
=1000
fo
r
50
μV
/Div
to
10
μV
/Div
.
V
c
m
=Common-
mode
voltage
.
Cu
rr
en
t
V
oltage
Cu
rr
en
t
Am
p
lit
ude
C
h
aracte
r
istic
P
owe
r
Supp
ly
Cu
rr
en
t
Curre
n
t
M
od
e
Accuracy'
Collector
Su
pply
Curre
n
t
M
od
e
Acc
ur
acy'
P
ositive
a
nd
N
egative
S
u
p
p
lies
Accu
r
acy
Swee
p
Ge
ne
r
ato
r
Fr
eq
ue
n
cy
Accuracy
In
O
FF
SE
TAN
D
GAI
N
Fun
ctio
ns
Commo
n
-mo
d
e
V
olt-
age
i
n
INPU
T
Ι
an
d
C
MRR
Fun
ctions
P
owe
r
Supp
ly
V
olt-
age
i
n P
S
RR
a
nd
S
UPPL
Y
Ι
F
u
n
ctions
Manual
Swee
p
At
least
150
mA
P
erfo
r
ma
n
ce
R
e
qu
ireme
n
t
1
ηΑ
/DI
V
to
50
mA/DI
V
in
α
1-2-5
se-
qu
e
n
ce,
unmagnified
.
0
.1
ηΑ
/DI
V
to
5
mA/DI
V
wit
h 10
Χ
mag
n
ifier
on
.
W
it
h
in
t3°/
ο
t1
ηΑ
u
n
mag
n
ifie
d
;
+4
ο/ο
t1
ηΑ
wit
h
10
Χ
mag
n
ifie
r
on
.
1
ηΑ
/DI
V
to
50
mA/DI
V
in
α
1-2-5
se-
qu
en
ce,
u
nmagnifie
d
.
0
.1
ηΑ
/DI
V
to
5
mA/DI
V
wit
h
10
Χ
magnifier
on
.
W
it
h
i
n
±3°
k
t1
ηΑ
,
u
nmagnified
.
±4%
t1 ηΑ
wit
h 10
Χ
m
ag
n
ifie
r
on
.
A
dju sta
b
le
from
0
to
30
V
.
W
it
h
i
n
t2°/
ο
±100
mV
.
0
.1
Hz
to
1
kH
z, si
n
usoi
d
al
sig
n
al
.
F
ive
r
an
ges,
0
.1,
1,
10,
100,
and
1000
H
z
wit
h
Χ
.1
to
Χ
1
va
r
iable
.
Wit
h
i
nt5°/
ο
in cali
br
ate
d
(
Χ
1)
positio
n
.
0
V
to
30
V
t3°/
ο
maximu
m
peak
.
In
t
h
e
1
m
V
/DI
V
to
50
m
V
/DI
V
ranges,
t
he
values
a
r
e 10
ο
/
ο
lowe
r
.
'Accu
r
acies
a
r
e
t
he
h
ig
h
est
pe
r
cen
tage
of
on-screen
val
u
es
.
Ta
b
le
1-1
(co
n
t)
ELE
CT
R
ICA
L
C
H
A
R
ACT
ER
ISTICS
S
p
ecificatio
n
-178
Se
r
vice
Su
pp
le
m
e
n
tal
I
n
format
i
on
B
ot
h
s
upp
lies
εαη
b
e
a
dju ste
d
from
t
he
+SUPPL
Y
co
n
tr
ol
.
N
egative
su
p
p
ly
can
be
in
d
epen
d
ently
a
dju
sted
usi
n
g
t
he υη
-
cali
b
rate
d
-SUPPL
Y
cont
r
ol
.
T
h
e-S
UPPL
Y
voltage
is
wit
h
i
n
f1
ο/ο
(abso-
l
u
te)
of
the
+S
UPPL
Y
voltage
w
hen
t
he
-SUPPL
Y
co
n
t
r
ol
is
i
n
t
h
eTR
AC
K
+S
UPPL
Y
position
.
Ad
j
ustable
cu
rr
e
n
t
limiti
ng
.
Ra
n
ges
overla
p
at
Χ
.1
en
d
of
va
r
ia
b
le
.
A
dju sta
b
le
from
O
V
to
30
V
t3°/
ο
maxi
m
u
m
Ad
j
ustable,
de
p
en
ds
on
f
un
ction
.
T
he
voltage
pea
k

s
hould be
limited
to
t
h
e
out
p
ut
cap
ability
of
t
he
D
U
T
.
L
imite
d
to
t
he
powe
r
s
u
pply
voltages
(clip
pe
d
)
See
P
ositive
and
N
egative
Su
pplies
T
he
Ge
n
eratoro
u
t
pu
t
may
b
e
man
u
ally
set
to
any
do
level
(
un
cali
b
rate
d
)
wit
h
i
n
its
ampli-
t
ud
e
range
(
d
epen ds
on
t
he
setti
ng
of
t
he
FUN
CTIO
N
switc
h
) .
Sp
ec
i
ficat
i
on-178
Service
Ta
b
le
1-1
(co
n
t)
ELE
CT
R
ICA
L
C
HAR
ACT
ER
ISTICS
C
ha
r
acteristics

P
erforma
n
ce
R
eq
uire
m
en
t

S
upp
le
m
e
n
tal
Info
r
mat
i
on
So
u
rce
R
esista
nce
R
esista
n
ces

I

I

F
ou
r
p
ai
r
s
;
50
Ω
,10 k
Ω
,
20
k
Ω
,
a
n
d
50
k
Ω
.
Tolerance

Ι

Ι
f1°/
ο
±10
Ω
.
L
oa
d
R
esista
n
ce
Wh
en
t
he
VER
T
UN
ITS/DI
V
switc
h
is
setto
1
m
V
/DI
V
t
hr
oug
h
50
mV
/DI
V
,
t
h
e
i
nd
icate
d
val
u
es
i
n
crease
by
500
Ω
.
Exte
rn
al
resis-
tors
ca
n
be
use
d
.
R
esista
n
ces

Seve
n
R
esistances
;100
Ω
,1
k
Ω
,
2
k
Ω
,
5 k
Ω
,
I

~

10
k
Ω
,
20
k
Ω
,
an
d
50
k
Ω
.
Tolerance

f3°/
ο
except
w
h
en
usi
n
g
t
he
50
m
V
,
20
m
V
,
a
nd
10
mV
p
ositions
of
t
he
VER
T
UN
ITS/DI
V
switch
.
T
h
e
tolerance
fo
r
t
h
e
50 k
Ω
t
h
e
n b
ecomes±30%,
fo
r t
h
e
20
k
Ω
±14%,10
k
Ω
t7"/
ο
,
an
d
5
k
Ω
f3°/
ο
w
he
n
t
h
e
D
U
T
out
p
ut
voltage
swin
g
is
2
.5
V
o
r
less
.
T
he
m
axi
m
u
m
tolerancedecreases ex
p
o-
n
e
n
tially
as
t
he
ou
t
p
ut
swing
is
i
nc
r
eased
a
nd
is
less
t
ha
n
t3°/
ο
w
h
en
t
he
out
p
ut
is
swin
gi
n
g
±30
volts
.
Ta
b
le
1-2
ENV
I
R
O
NMEN
TA
L
C
HA
R
ACT
ER
ISTICS
C
h
a
r
acte
r
istic

P
erformance
R
eq
ui
r
e
m
e
n
t

Ι

S
u
ppleme
n
tal
Tem
p
eratu
r
e
S
p
ecified
O
pe
r
ati
ng

Ι

Ι

+10°
C
(+50°
F)
to
+40°
C
(+104°
F)
U
sef
u
l
O
pe
r
ati
ng

Ι

Ι

0°
C
(+32°
F)
to+50°
C
(+120°
F)
Non-operating

Ι

Ι

-40°
C
(-40°
F)
to
+65°
C
(+149°
F)
.
Altitu
d
e
Operatin
g

Ι

Ι

To
10,000
feet
(3000
metres)
Tra
n
sportatio
n
12-i
n
ch (30
cm)
p
ack
age
d
rop
.
Qualified
u
nd
e
r
t
he
N
atio
n
al
Safe
Tra
n
sit
Co
mm
ittee
pr
oce
du
re
1
Α
.
Di
m
ension
s
H
eigh
t
W
i
d
t
h
De
p
t
h
W
eig
h
t
N
et
Table
1-3
PH
YSICA
L
CH
AR
ACT
ER
ISTICS
4
.5
i
nches
(11
.4
cm)
7
.9
i
nches
(20
.1
cm)
7
.8
inc
hes
(19
.8
cm)
3
.3
p
ounds
(1
.5
k
g)
STA
N
DA
R
D
ACC
E
SSO
R
I
E
S
R
efer to
t
he
R
ep
laceable
M
ech
a
n
ical
P
arts
list
fo
r
α
listi
ng
of
t
h
e
sta
n
da
r
d
accessories
.
S
p
ecificatio
n
-178
Service