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TM 9-6625-474-14&P-2
TECHNICAL MANUAL
OPERATOR, ORGANIZATIONAL,
DIRECT SUPPORT, AND GENERAL SUPPORT
MAINTENANCE MANUAL
(INCLUDING REPAIR PARTS)
FOR
FUNCTION GENERATOR
TEKTRONIX, MODEL FG 501A
(6625-01-106-9873)
DEPARTMENT OF THE ARMY 27 DECEMBER 1984
TM 9-6625-474-14&P-2
WARNING
RA PD 404264
DANGEROUS VOLTAGE
is used in the operation of this equipment
DEATH ON CONTACT
may result if personnel fail to observe safety precautions
Never work on electronic equipment unless there is another person nearby who is familiar with the
operation and hazards of the equipment and who is competent in administering first aid. When the
technician is aided by operators, he must warn them about dangerous areas.
Whenever possible, the power supply to the equipment must be shut off before beginning work on the
equipment. Take particular care to ground every capacitor likely to hold a dangerous potential. When
working inside the equipment, after the power has been turned off, always ground every part before
touching it.
Be careful not to contact high-voltage connections when installing or operating this equipment.
Whenever the nature of the operation permits, keep one hand away from the equipment to reduce the
hazard of current flowing through vital organs of the body.
WARNING
Do not be misled by the term "low voltage." Potentials as low as 50 volts may cause death under adverse
conditions.
COMMON and probe ground straps are electrically connected. Herefore, an elevated reference applied to
any is present on each - as indicated by the yellow warning bands under the probe retractable hook tips.
For Artificial Respiration, refer to FM 21-11,
Power Source
This product is intended to operate in a power module connected to a power source that will not apply more
than 250 volts rms between the supply conductors or between either supply conductor and ground. A
protective ground connection by way of the grounding conductor in the power cord is essential for safe
operation.
a/(b blank)
TM 9-6625-474-14&P-2
Copyright 1980 Tektronix, Inc. All rights reserved
Reproduced by permission of copyright owner.
TECHNICAL MANUAL HEADQUARTERS
DEPARTMENT OF THE ARMY
No. 9-6625-474-14&P-2 Washington, D.C., 27 December 1984
OPERATOR, ORGANIZATIONAL, DIRECT SUPPORT,
AND GENERAL SUPPORT MAINTENANCE MANUAL
(INCLUDING REPAIR PARTS)
FOR
FUNCTION GENERATOR
TEKTRONIX, MODEL FG 501A
(6625-01-106-9873)
REPORTING OF ERRORS
You can help improve this manual. If you find any mistakes or if you know of a way
to improve the procedures, please let us know. Mail your letter or DA Form 2028
(Recommended Changes to Publications and Blank Forms), direct to: Command-
er, US Army Missile Command, ATTN: DRSMI-SNPM, Redstone Arsenal, AL
35898-5238. A reply will be furnished to you.
TABLE OF CONTENTS
Page
LIST OF ILLUSTRATIONS iii
LIST OF TABLES iv
SECTION 0. 0-1
0-1
0-1
0-1
0-1
0-1
0-1
SECTION 1. 1-1
SECTION 2. 2-1
2-1
2-2
2-4
2-5
2-6
2-9
SECTION 3. 3-1
SECTION 4. 4-1
4-1
4-8
SECTION 5. 5-1
5-1
5-4
This manual is, in part, authenticated manufacturer's commercial literature. Recommended Spare Parts List has been added to supplement the commercial
literature, The format of this manual has not been structured to consider levels of maintenance.
i
TM 9-6625-474-14&P-2
TABLE OF CONTENTS (CONT)
Page
SECTION 6. OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
SECTION 7. REPLACEABLE ELECTRICAL PARTS, . . . . . . . . . . . . . . . 7-1
SECTION 8. DIAGRAMS AND CIRCUIT BOARD ILLUSTRATIONS . . . . . . . 8-1
SECTION 9. REPLACEABLE MECHANICAL PARTS . . . . . . . . . . . 9-1
APPENDIX A. REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
APPENDIX B. MAINTENANCE ALLOCATION CHART (MAC) . . . . . . B-1
APPENDIX C. RECOMMENDED SPARE PARTS LIST..... . . . . . . . . . . . . . . . . . . . C-1
APPENDIX D. MANUAL CHANGE INFORMATION. . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . D-1
ii
TM 9-6625-474-14&P-2
LIST OF ILLUSTRATIONS
Fig. No. Title
0-1 FG 501A 2 MHz Function Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0-2
2-1 Installation and Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2-2 Controls and Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2-3 Swept Frequency Range (VCF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2-4 Basic Functions (Waveforms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2-5 Ramps and Pulses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2-6 Phase Relationships (Output and Trig) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2-7 Trigger Signal Amplitude Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2-8 Gated Operation (Waveforms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
2-9 Triggered Operation (Waveforms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
2-10 Phase Control (Waveforms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
2-11 Analyzing Circuit or System Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
2-12 Tone Burst Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
4-1 Test Setup for Dial Alignment and Offset Adjustment . . . . . . . . . . . . . . . . . . . . . 4-9
4-2 Test Setup for Sine Distortion Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
4-3 Test Setup for Offset and Sine/SquareAmplitude
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
4-4 Test Setup for Squarewave Comp/Rise and Falltime
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
4-5 Test Setup for Dial Cal and Loop Delay Adjustment . . . . . . . . . . . . . . . . . . . . . . . 4-14
5-1 Coaxial End Lead Connector Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
5-2 Orientation and Disassembly of Multipin Connectors . . . . . . . . . . . . . . . . . . . . . . 5-3
5-3 Extension Shaft and Pushbutton Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
5-4 Rear Interface Connector Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
iii
TM 9-6625-474-14&P-2
LIST OF TABLES
Table No. Title Page
1-1 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1-2 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1-3 Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1-4 Physical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
4-1 Test Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
5-1 Relative Susceptibility to Static Discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
iv
TM 9-6625-474-14&P-2
SECTION 0
GENERAL INFORMATION
0-1. Scope. This manual contains instructions for 0-4. Reporting Equipment Improvement Recom-
the operator, organizational, direct support, and gen- mendations (EIR). If your FG 501A needs im-
eral support maintenance of and calibration proce- provement, let us know. Send us an EIR. You, the
dures for Tektronix Function Generator, Model FG user, are the only one who can tell us what you don't
501A. Throughout this manual, Tektronix Function like about your equipment. Let us know why you don't
Generator, Model FG 501A is referred to as the FG like the design. Tell us why a procedure is hard to
501A. perform. Put it on an SF 368 (Quality Deficiency
Report). Mail it to Commander, U.S. Army Missile
0-2. Indexes of publications. a. DA Pam 310-4. Command, ATTN: DRSM1-CIMD, Redstone Arsenal,
Refer to the latest issue of DA Pam 310-4 to deter- AL 35898-5290. We'll send you a reply.
mine whether there are new editions, changes, or
additional publications pertaining to Tektronix Func- 0-5. Administrative Storage. To prepare the Tek-
tion Generator, Model FG 501A. tronix Function Generator, Model FG 501A for place-
b. DA Pam 310-7. Refer to the latest issue of DA ment into and removal from administrative storage,
Pam 310-7 to determine whether there are modifica- refer to Section 3, Chapter 4, AR 750-25-1, Mainte-
tion work orders (MWO'S) pertaining to Tektronix nance of Equipment and Supplies. Temporary storage
Function Generator, Model FG 501A. should be accomplished in accordance with TB 750-
25-1, Section 2, Maintenance of Supplies and
0-3. Forms, Records, and Reports. Department of Equipment.
Army forms and procedures used for equipment main-
tenance and calibration are those prescribed by TM 0 - 6 . D e s t r u c t i o n o f A r m y Electronics
38-750, The Army Maintenance Management System. Materiel. Destruction of Tektronix Function
Accidents involving injury to personnel or damage to Generator, Model FG 501A to prevent enemy use shall
materiel will be reported on DA Form 285, Accident be in accordance with TM 750-244-2.
Report, in accordance with AR 385-40.
0-1
TM 9-6625-474-14&P-2
.
FIG.0-1. FG 501A 2MHz FUNCTION GENERATOR
0-2
TM 9-6625-474-14&P-2
SECTION 1
SPECIFICATION
INTRODUCTION ACCESSORIES
This section of the manual contains a general descrip- The only accessory shipped with the FG 501A is the
tion of the FG 501A and complete electrical, environmen- Instruction Manual.
tal, and physical specifications. Standard accessories are
also listed. Instrument option information is located in the
back of this manual in a separate section. PERFORMANCE CONDITIONS
The electrical characteristics are valid with the follow-
ing conditions:
INSTRUMENT DESCRIPTION
1. The instrument must have been adjusted at an
The FG 501A Function Generator provides low distor- ambient temperature between +20