Model 3455A
Table of
Contents
TABLE OF CONTENTS (Cont'd)
SERVICE
GROUP
C
8-C-l.
AC Convertor Troubleshooting
8-59
8-C-2. True RMS
Convertor Servicing
(Schematic 3)
8-59
8-C-4.
Preamplifier and Input Alternator
Circuitry
8-60
8-C-6. Absolute
Amplifier Circuitry
8-61
8-C-8.
Squaring Amplifier, Intergrator,
and
Antilog Circuitry
8-61
8-C-IO. AC/DC
Operation
8-62
8-C-12. AC Noise
(Schematic
3)
8-62
8-C-16.
Miscellaneous Troubleshooting
(Schematic
3)
8-63
8-C-17.
Average
Responding
AC Convertor
(Schematic
2)
8-64
SERVICE GROUP D
8-D-l. Ohm Troubleshooting
(Schematic 1,4)..
.8-65
8-D-2. Ohms Circuit
Isolation
8-65
8-D-4. Ohms
Servicing
8-65
8-D-6. Ohms
Convertor Troubleshooting
(Schematic
1,
4)
8-65
8-D-8. Miscellaneous Ohms Troubleshooting
Hints
8-66
8-D-9. Ohms Offsets
8-66
8-D-ll.
Ohms Noise (Schematic 1,4)
8-67
SERVICE
GROUP
E
8-E-l. A/D
Convertor
and
Inguard Logic
Troubleshooting
8-68
8-E-2.
A/D
Convertor Servicing
(Schematic
6,
7)
8-68
8-E-4. No
A/D Waveform
8-69
8-E-6. Incorrect A/D
Waveform
8-69
8-E-7. Correct
A/D Waveform
8-69
8-E-8. A/D
Noise (Schematic
6)
8-70
8-E-lO. Inguard Logic Troubleshooting
(Schematic 7)
8-70
8-E-12.
Inguard Logic
Troubleshooting with
no
A/D
Waveform
8-70
8-E-I3.
Inguard Logic
Troubleshooting
with
an A/D
Waveform
8-72
SERVICE GROUP F
8-F-l.
Outguard
Logic Troubleshooting
(Schematic
8, 9,
10)
8-73
8-F-3. Main Controller
Troubleshooting
(Schematic 8)
8-73
8-F-4.
Front Panel Troubleshooting
8-73
8-F-5. Front
Panel Operation Check
8-73
8-F-6. Front
Panel Servicing (Schematic 10). . .
.8-74
8-F-7. Front Panel LED’s
Switch,
and
Key
Cap Replacement
Procedure
8-74
8-F-8. HP-IB Troubleshooting (Schematic 9).
.
.8-75
SERVICE GROUP 6
8-G-l. Miscellaneous Troubleshooting
8-76
8-G-2.
Power Supplies (Schematic 11)
8-76
8-G-3. Reference Assembly (Schematic
5)
8-76
8-G-4.
Turn-Over
Errors (Schematic
1, 5,
and
6)
8-77
8-G-6. Other
Troubleshooting (Schematic 8
and 11)
8-77
SERVICE
GROUP
H
8-H-l . Troubleshooting Diagrams
8-78
8-H-3. General Troubleshooting
Diagram
8-78
8-H-4.
Inguard Troubleshooting Diagram.
8-8
1/8-82
8-H-6.
Outguard Troubleshooting
8-117/8-118
APPENDIX
Page
A-1. Introduction
A-1
A-4. Program Example #1 A-1
A-5. Program Example #2
A-2
LIST OF TABLES
Table
Page
1-1.
Specifications
1-2
1-2. Typical Operating
Charaaeristics
1-4
1-3.
Recommended
Test Equipment
1-6
3-1. Maximum Front Panel Reading
Rates
3-6
3-2. HP-IB Interface Capability
3-7
3-3.
Bus Messages
3-8
3-4.
HP-IB Program
Codes
3-9
3-5.
Binary
Program Codes
3-11
3-
6. Typical HP-IB
Controlled Meassurement
Times
3-14
4-
1. DC Accuracy Test
(1
V,
10
V
Full
Scale;
High Resolution On)
4-3
Table
Page
4-2.
DC Accuracy
Test (High Resolution Off). .
.4-5
4-3.
DC
Accuracy Test (High Resolution On). .
.4-5
4-4.
AC Accuracy Test 30 Hz to 100 kHz
(Standard
Model
3455A only)
4-7
4-5.
AC Accuracy Tests 100 kHz to 1 MHz
(Standard Model 3455
A
only)
4-7
4-6.
AC Accuracy Test 30 Hz to
100
kHz
(3455A Option 001 only)
4-8
4-7. Two-Wire
Ohm Accuracy Test
4-8
4-8. Four-Wire
Ohms
Accuracy Test
4-9
4-9. DC Accuracy Test
(1
V, 10 V Full-Scale;
High Resolution
OfO
4-10
V
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