HP 3457A - Page 7

TABLE OF CONTENTS (Cont'd)
Section
V
Page
Section
VI
Page
CALIBRATION
(Cont'd)
REPLACABLE
PARTS
(Cont'd)
5-27.
2-Wire
Ohms
Offset
Calibration...
...
5-8
Digital
(Al)
Assembly
Removal.
. . .
.
6-4
5-29,
2-Wire
Ohms
Gain
Calibration
.
Plug-In
Support
Assembly
5-31.
4-Wire
Ohms
Offset
Calibration
.
.
.
Removal
..<.
esac
¢
5
aaa
Edy
4
0-5
5-33,
4-Wire
Ohms
Gain
Calibration
2
6-29.
AC
Convertor
(A3)
Assembly
5-35.
DC
Current
Offset
Calibration...
...
5-10
Removal
0-5
5-37.
DC
Current
Gain
Calibration.
.....
.
5-10
6-31.
Analog
(A2)
Assembly
Removal
.
0-5
5-39.
AC
Volts
Offset
&
Gain
6-33.
Front
Panel
Removal...
2.2.0...
6-0
Calibration...
.
.
5-41,
AC
Current
Section
VII
Page
5-43.
Frequency
Calibration
......
.
2
512
MANUAL
CHANGES.........--555%
7A
5-45.
Calibration
Procedures
Rear
Panel
FAs
INtrOdCHOH:.
si
i<
sm
acpe
ae
Ha
ged
7-1
Inputs
5-47,
DC
Volts
Offset
Ca!
bration.
..
ee.
5-12
Section
VIII
Page
5-49,
2-Wire
Ohms
Offset
Calibration...
.
.
5-13
SERVICE
accede
nesters
eens
8-1
5-51.
4-Wire
Ohms
Offset
Calibration...
.
.5-14
8-1.
Introduction.
.
.
.
2
ted
er
cays.
Bal
:
DC
Current
Offset
Calibration...
..
.5
14
8-2.
Safety
Considerations.
........-
.
8-1
5-55.
Calibration
Procedures
-
44491
A
8-3.
Static
Handling
.
8-2
General
Purpose
Relay
Assy
8-4.
Recommended
Test
Equipment
....
.
8-2
5-56.
Wiring
Block
Preparation
. .
=e
8-5.
General
Block
Diagram
Theory
5-58.
DC
Volts
Offset
Calibration,
...
2...
5-16
of
Operation
8-2
5-59,
2-Wire
Ohms
Offset
Calibration...
..
5-17
8-6.
Chassis
Common
C
8-3
5-60.
4-Wire
Ohms
Offset
Calibration
.
SeL7
8-10.
Floating
Common
Circuitr
8-3
5-61,
DC
Current
Offset
Calibration.
.....
5-17
8-18.
Detailed
Theory
of
Operation
.....
8-5
5-62.
Calibration
Procedures
-
444924
8-19.
Input
Circuitry
.
.
.
8-5
10
Channel
Multiplexer
Assy.
.
8-26.
Ohms
Current
.
8-11
5-63.
Wiring
Block
Preparation
.
8-31.
A/D
Converter...
0...
6.005
8-13
5-65.
DC
Volts
Offset
Calibration.
.
5-19
8-35:.A/D
‘Controllers.
«isis
es
as
8-16
5-66.
2-Wire
Ohms
Offset
Calibration...
.
.
5-19
8-40.
Main
Controller
(03457-66501)...
8-18
8-49.
Main
Controller
(03457-66511)...
8-23
Section
VI
8-55.
AC
to
DC
Converter...
...
REPLACABLE
PARTS........-+++++%
8-63.
44491
A
General
Purpose
6-1.
Introduction.
...
2...
Relay’
Gatdsas
asi
sf
ares.
34-2
stirs
.
8-32
6-3.
Ordering
Information
8-69.
44492A
10
Channel
Reed
GA)
[lated
RARE:
acca,
weeded
wm
SaewS
ee
Multiplexer...
.....
8-35
6-6.
Non-Listed
Parts
.
&
8-71.
Troubleshooting
.
eu
8-35
6-8.
Direct
Mail
Order
System
ee
ee
6-1
8-72.
General
Information
....
soa,
+
(8-36
6-11.
Part
Changes.......
~
8-73.
Al
Assy.
Failure
Indications.
.
..
.
8-36
6-13.
Proprietary
Parts...
.
-
6-2
8-74.
A2/A3
Assy.
Failure
Indications
.
.
8-36
6-15.
Disassembly/Assembly
Procedures.
.
.
.
.6-3
B75.
SE
TESS
6
asiss
coe
eatin
wa
eR
8-36
6-17.
Rear
Terminal
Assembly
Removal.
.
.
6-3
8-78.
Self
Test
Changes
for
New
Main
6-19.
Optional
Plug-In
Assembly
Controller
(03457-66511)...
0.6.4
8-44
TRENIOVEL
¢
we
acunsgses
Jr
ee
Ow
Dea
aks
6-3
8-81.
Autocal
(ACAL)
. .
2.
8-46
6-21.
Top
Cover
Removal...
......--5
6-4
8-82.
Plug-in
Cards
.........
...
8-60
8-85.
Replacement
Procedures.
......
8-02