LIST OF ILLUSTRATIONS

TM 11-6625-444-14-2

TABLE OF CONTENTS (Cont)

CHAPTER 6.

DIRECT SUPPORT AND GENERAL SUPPORT

Paragraph

Page

MAINTENANCE

Minimum specifications of equipment required

Section VI.

General . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-34

6-15

Dc volts accuracy adjustments . . . . . . . . . . .

6-16

6-36

Dc ratio accuracy adjustments . . .. . . . . .. .

6-17

6-39

Dc volts autoranging adjustments

. . . . . ....

6-18

6-45

Dc/dc ratio autoranging adjustments . . . . . . .

6-47

6-19

Ac volts accuracy adjustments . . . . .... . . .

6-50

6-20

Final procedure . . . . . . . . . . . . . . . . ....

6-21

6-59

APPENDIX A.

REFERENCES

.......................

A-1

MAINTENANCE ALLOCATION

APPENDIX B.

Section I.

Introduction

B-1

. . . .. . .. . . . ....... . . . . .

Section II.

Maintenance allocation chart for Voltmeter

AN/GSM-64C . . . . . . . ... . ..... .. . . . . .

B-3

Tool and test equipment requirements for

Section III.

Digital Voltmeter, AN/GSM-64C . . . . . . . . . .

B-5

LIST OF ILLUSTRATIONS

Figure

Title

Page

Digital Voltmeter AN/GSM-64C . . . . . . . . . . . . ..... . . . . . . . . .

1-1

1-0

Outline Drawing, Portable Configuration . . . . . . . . . . . . . . . . . . . .

1-2

1-5

Outline Drawing, Rack Mount Configuration . . . . . . . . . . . . . . . . .

1-3

1-6

An/GSM-64C Packing Diagram . . . . . . . . . . . . .. . .. ....

2-1

2-2

2-3

Voltage Selection and Fused Receptacle (Rear Panel) . . . . . . . . . . .

Equipment Connections

2-3

2-4

. . . . . . . . . . . . . . . ..... ...

Rack Mount installation . . . . . . . . . . . . . . . . . . . . . . . . . .

2-4

2-5

Front Panel Controls and Instruments . . . . . . . . . . . . . . . . . . . ...

3-1

3-2

Rear Panel Controls and instruments . . . . . . . . . . . . . . . . . . . .

3-2

3-6

Common Mode Signal Configuration. . . . . . . . . . . . . . . . . . . . . . .

3-3

3-8

Guarded Signal Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4

3-9

Average, Rms, and Peak Voltage Relationship of a Sine Wave . . . . .

3-5

3-13

Effect of Dc Bias on the True Rms Voltage of a Square Wave . . . . . .

3-6

3-14

Knob Removal and Replacement . . . . . . . . . . . . . . . . . . . . .

4-1

4-6

Range Selection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-1

5-6

Function Selection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-2

5-12

Timing Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .

5-3

5-14

Location of Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-1

6-2