Table Of Contents - HP 721A Operating And Servicing Manual

Model 721A
SECTION I
SECTION II
SECTION III
SECTION IV
SECTION V
CONTENTS
GENERAL INFORMATION Page
I - 1 Manual Content. ! " |
1-2 General Description.
1.-3 Inspection.
1-4 Power Cable. r
1 - 5 230 Volt Operation. 1 "
4
OPERATING INSTRUCTIONS
2-1 Operating Controls ..
2-2 Meter Range Switch.
2-3 Short Circuit Current Switch .
2-4 Series Operation of Supplies .
2-5 Parallel Operation of Supplies
THEORY OF OPERATION
.Ill -
1
3-1
3 - 2
. ...
Ill - 1
........
Ill - 1
O " D
.Ill - 1
3-4
.Ill - 1
3 •" 5
.Ill - 2
3-0
3 - 7
Frequency Response Control. .Ill - 2
MAINTENANCE
4-1 Contents.
4-2 General Maintenance Information.
4-3 Trouble Localization.
4-4 Checking Voltage Regulation and Ripple . . .
4-5 Measuring AC Internal Impedance.
4-6 Meter Calibration.
4-7 Setting Maximum Output Voltage.
4-8 Calibrating the Short Circuit Current Circuit
4-9 Replacing the Power Transistor.
4-10 Replacing Diodes CR5, CR6 and CR7.
TABLE OF REPLACEABLE PARTS
5-1 Table of Replaceable Parts
IV - 1
IV - 1
IV - 1
IV - 3
IV - 3
IV - 3
IV - 5
IV -5
IV -5
IV -5
V - 1