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435B
HP 435B Service Manual
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SERV
IC
E
SHEE
T
3
(Cont'
d
)
DC
Amplifier
and
Servo
Amplifier
M
eas
ur
e
t
h
e
do
inpu
t
a
nd
o
u
t
pu
t
v
o
l
tages
.
V
e
rify
t
h
at
t
h
e
a
mpli-
fi
e
r
o
u
t
pu
ts
r
es
p
o
nd
pr
o
p
e
rly
to
t
h
e
inpu
ts
.
F
o
r
t
r
oubl
es
h
oot
in
g
o
p
e
r
at
i
o
n
a
l
a
mpli
fie
r
s
r
e
f
e
r
to
Ge
n
e
r
a
l
Se
rvi
ce
Info
rm
at
i
o
n
in
Sect
i
o
n
VIII
.
Α
Se
rv
o
Amplifi
e
r
pr
o
bl
e
m
will
b
e
e
vide
n
t
o
nly
du
r
in
g
t
h
e
ze
r
o
in
g
se
qu
e
n
ce
.
Auto
Zero
Assembly
Th
e
no
rm
a
l
v
a
lu
e
r
a
n
ge
o
f
t
h
e
o
ff
set
e
rr
o
r
v
o
l
tage
at
ΤΡΑ
i
s
a
b
o
u
t
-14
to
+14
mVd
c
.
Th
e
po
w
e
r
se
n
s
in
g
de
vi
ce
no
rm
a
lly
e
xhibi
ts
α
s
li
g
h
t
pos
i
t
iv
e
o
u
t
pu
t
du
e
to
a
mbi
e
n
t
te
mp
e
r
at
ur
e,
t
h
e
r
e
f
o
r
e,
t
h
e
no
rm
a
l
co
rr
ect
i
o
n
v
o
l
tage
i
s
s
li
g
h
t
ly
n
egat
iv
e,
h
e
n
ce
-4
mVd
c
.
Th
e
v
o
l
tage
meas
ur
e
d
at
ΤΡΒ
w
ill
pr
o
vi
de
an
indi
cat
i
o
n
o
f
h
o
w
l
o
n
g
t
h
e
c
h
ar
ge
i
s
reta
in
e
d
on
A
4
A
1C1
.
Th
e
v
o
l
tage
s
h
o
uld
r
e
m
a
in
vir
t
u
a
lly
un
c
h
a
n
ge
d
(±1
mVd
c)
f
o
r
24
ho
urs
.
If
a
ny
co
mp
o
n
e
n
t
on
t
h
e
Α
4
Α
1
asse
mbly
is
f
o
und
to
be
de
f
ect
iv
e,
t
h
e
e
n
t
ir
e
assem
bly
mu
st
be
re
pl
ace
d
.
Switc
h
Assembly
and
AC
Ampl/Sync
Detector
Ρ
/
Ο
Α
1
an
d
Ρ
/
Ο
Α
4
4
S
ERV
IC
E
SHEE
T
89
91
Table of Contents
Table of Contents
4
General Information
9
Introduction
9
In Struments Covered by Manual
9
De Sc R Iptio N
9
O P B Tio N S
10
Atte Ry
11
Sa F et y Co N S ID E R at I O N
11
HP M Odel 435 Β a
11
R Ecommend Ed Test Equipment
11
I Nstall Atio N
13
Introduction
13
Preparation for Use
13
T I a L in S P Ect I O N
13
Mete R
14
Ower Cable
14
Oltage Selection
14
L Ect I O N
14
Interconnections
14
L I N E V Oltage Selection
14
Operat Ing Environment
15
B Ench O Peration
15
F R Ac K Moun Ting
15
M Ains Plu Gs Available
15
B Atte Ry Installation
16
Ow er Mete R
16
3-12 . Battery
20
Rea R Pa N E L Co N Trol S, Connectors and Ind Icato R S
22
Oper Ator's C He Cks
23
O Per Ating Instru Ct I O N S
25
Per Atio N
26
Specified Uncertainties
27
Calculating M
29
Eas Ureme Nt un Certa Inties
29
Mismatch un Certai Nties
30
Calculating M Eas Ureme Nt un Certai Nty
31
Introduction
32
In Eas
32
R St Case
32
CC Ur
32
Ac Ur
32
Perf O Rm an Ce te Sts
34
Eco Rd
34
Rf Rm Ce Tests
34
Power Reference
34
Est
35
Z Ero Carryover Test Set up
35
Erform Ance Est
37
Est
38
Ad Ju St Men Ts
40
Introduction
40
N S
40
Ad J
40
Locations
40
Specifications
40
Actory Selected Co Mponents
40
Ower Reference Oscillator Level Adjustment
42
P Ower Reference Osc Ill Ator Level
43
Multivibrator Adjust Ment
45
Ower Meter Adjustments with 50Ω P
47
P Ower Meter Ad
47
Owe R Sensor
48
O W E R M Ete R Ad J U St M E N Ts Wi T H Ca Libr Ato R
50
With Calibrator
50
Repl Ac
52
Section E ABLE P V I a RTS
52
Introduction
52
Abbreviations
52
E Pl Acea Bl E P
52
Actory Se Lecte D Parts (*)
52
Orderin G in St Ructions
52
Arts Provi Sioning
52
Epl Acea Ble Parts
52
Ma Nu al Chan G es
63
Introduction
63
Manual Change in Structions
63
Servic E
65
Introduction
65
Sa F et y Co N S ID E R at I O N
65
H Eets
65
Fr O N T
69
Ower Sensor
77
Sc Hem at IC
78
Ge Neral Se Rvi Ce Inf Orm at Ion
79
Ca Libr Ato R
79
Oa Rd S
81
Ρ/Ο Α4 Ass Embly
82
Ρ/0 Α
86
P Ower S Upply
89
Operational Amplifiers
90
Ρ/Ο Α4 Assem Bl y
92
Ρ/Ο Α4 Ass Embly
99
Ower Refere Eference Assembly
107
Sc Hematic Diagram
107
Ocatio Ns
108
Ero
110
5
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HP 435B Specifications
General
Brand
HP
Model
435B
Category
Measuring Instruments
Language
English
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