HP 4280A Service Manual

Model 4280A
Table of Contents
TABLE OF CONTENTS
Section Title Page
3-210.
Data Format in
Standard Data
Transfer Mode . . . 3-108
Output Data Formats
in Standard Data
Transfer Mode . . . 3-109
Isolate Function . . . . . . 3-111
Restrictions on Changing
Connection Modes . . . 3-111
LEARN Mode . . . . . . . . . . . . 3-111
Service Request Status
Byte . . . . . . . . . . . . . . . 3-116
4280A Programming
Guide . . . . . . . . . . . . . . 3-118
3-212.
3-214.
3-216.
3-218.
3-220.
3-222.
Appendix External Error
Correction . . . . . . .
A-l
IV PERFORMANCE TESTS
4-l.
4-3.
4-5.
4-7.
4-9.
4-l 1.
4-13.
4-19.
4-21.
4-23.
4-25.
Introduction . . . . . . . . . .
Equipment Required . . . .
Test Record . . . . . . . . . . .
Calibration Cycle . . . . .
Test Frequency Accuracy
Test . . . . . . . . . . . . . . .
Test Signal Level
Accuracy Test . . . . . .
Measurement Accuracy
Tests . . . . . . . . . . . . . .
Internal Bias Voltage
Accuracy Test . . . . . .
RECORDER OUTPUTS
Voltage Accuracy
Test . . . . . . . . . . . . . . .
HP-IB Interface Test . . .
Conductance Measurement
Accuracy
Confirmation
Check . . . . . . . . . . . . . .
4-l
4-l
4-l
4-l
4-7
4-8
4-9
4-15
4-17
4-18
Section
5-17.
5-19.
5-21.
5-23.
5-25.
5-27.
5-29.
5-31.
5-33.
5-35.
5-37.
5-39.
5-41.
5-43.
5-45.
5-47.
5-49.
5-51.
5-53.
Title Page
Al4 Switching
Frequency
Adjustment . . . . . . . . . . 5-6
All Reset Circuit
Adjustment . . . . . . . . . . 5-7
Al4 +5V Adjustment . . . . . 5-9
A5 +12OV Adjustment . . . . 5-10
A4 Oscillator Level
Adjustment . . . . . . . . . .
5-11
A8 Integrator Offset
Adjustment . . . . . . . . . .
5-12
A8 Auto Zero
Adjustment . . . . . . . . . .
5-14
A8/A7 Test Signal
Phase Adjustment . . . . 5-15
A7 Tracking
Adjustment . . . . . . . . . . 5-17
A8 90' Phase
Adjustment . . . . . . . . . . 5-19
A8 S/H Gate
Adjustment . . . . . . . . . . 5-21
A2 DC Offset
Adjustment . . . . . . . . . . 5-23
A6 Loop Phase
Adjustment . . . . . . . . . . 5-25
A6 Bandpass Filter
Adjustment
. . . . . . . . . .
5-28
A6 I-V Offset
Adjustment . . . . . . . . . . 5-29
A2 Range Resistor
Adjustment . . . . . . . . . . 5-30
A3 26dB L-R Amplifier
Adjustment . . . . . . . . . . 5-31
A4 DC Bias Supply
Adjustment . . . . . . . . . . 5-33
A10 Analog Output
Adjustment
. . . . . . . . . . 5-35
VI REPLACEABLE PARTS
4-27
V ADJUSTMENTS
5-l.
Introduction . . . . . . . . . . 5-l
5-3. Safety Requirements . . .
5-l
5-7. Equipment Required . . . . 5-l
5-9.
Factory Selected
Components . . . . . . . . . 5-l
5-11. Adjustment
Relationships . . . . . . 5-5
5-13. Adjustment Locations . . . 5-5
5-15. Initial Operating
Procedure . . . . . . . . . . 5-5
6-l. Introduction . . . . . . . . . . . 6-l
6-3.
Abbreviations . . . . . . . . . . 6-l
6-5. Replaceable Parts
List . . . . . . . . . . . . . . . . 6-l
6-7. Ordering Information . . . .
6-2
6-10. Direct Mail Order
System . . . . . . . . . . . . . . 6-2
VII MANUAL CHANGES
::::
Introduction ........... 7-l
Manual Changes
......... 7-l
. . .
111

HP 4280A Specifications

General

Brand	HP
Model	4280A
Category	Plotter
Language	English