Auditronics 220 Digital Audio Console Service Manual

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Summary of Contents

Page 1 - OPERATOR-MAINTAINER

STP 11-25R13-SM-TG HEADQUARTERS DEPARTMENT OF THE ARMY Soldier's Manual and Trainer's Guide MOS 25R VISUAL INFORMATION EQUIP

Page 2

STP 11-25R13-SM-TG 1 - 2 b. Additionally, some task summaries include safety statements and notes. Safety statements (danger, warning, and caution)

Page 3 - MOS 25R

STP 11-25R13-SM-TG 3 - 76 Subject Area 6: ADVANCED REPAIR REPAIR AN AUDIO AUTOMATION SYSTEM 113-575-0053 Conditions: In a tactical or garrison envir

Page 4

STP 11-25R13-SM-TG 3 - 77 Evaluation Guidance: Score the soldier a GO if all steps are passed (P). Score the soldier a NO-GO if any step failed (F).

Page 5

STP 11-25R13-SM-TG 3 - 78 REPAIR A TELEVISION PRODUCTION SWITCHER 113-575-0054 Conditions: In a tactical or garrison environment, given a TV producti

Page 6

STP 11-25R13-SM-TG 3 - 79 Performance Measures Results b. Chroma key problems normally result from the improper operation of the keying setup such

Page 7

STP 11-25R13-SM-TG 3 - 80 REPAIR A VISUAL INFORMATION (VI) EMBEDDED COMPUTER SYSTEM 113-575-0061 Conditions: In a tactical or garrison environment, g

Page 8

STP 11-25R13-SM-TG 3 - 81 Subject Area 7: INSPECTION INSPECT A VIDEO TEST SIGNAL GENERATOR (VTSG) 113-575-5018 Conditions: In a tactical or garrison

Page 9 - INTRODUCTION

STP 11-25R13-SM-TG 3 - 82 Performance Measures Results (1) On the video monitor, the color bars shift horizontally. P F (2) The vectorscope d

Page 10

STP 11-25R13-SM-TG 3 - 83 INSPECT AN AUDIO TEST SIGNAL GENERATOR (ATSG) 113-575-5019 Conditions: In a tactical or garrison environment, given a 1510A

Page 11

STP 11-25R13-SM-TG 3 - 84 ESTABLISH A STUDIO-TO-TRANSMITTER LINK (STL) 113-575-1005 Conditions: In a tactical or garrison environment, given a microw

Page 12

STP 11-25R13-SM-TG 3 - 85 Subject Area 8: DOCUMENTATION POST CHANGES TO SCHEMATIC DIAGRAMS 113-575-9004 Conditions: In a tactical or garrison enviro

Page 13

STP 11-25R13-SM-TG 1 - 3 (10) Appendix J, High Pass Filter Guidelines. (11) Appendix K, Bandpass Filter Guidelines. (12) Appendix L, Coil Guidelines

Page 14

STP 11-25R13-SM-TG 3 - 86 ANNOTATE CHANGES AND MODIFICATIONS TO PLANT AND PLACEMENT DRAWINGS 113-575-9005 Conditions: In a tactical or garrison envir

Page 15 - TRAINER'S GUIDE (TG)

STP 11-25R13-SM-TG 3 - 87 MAINTAIN A TECHNICAL REFERENCE LIBRARY 113-631-6008 Conditions: Given manufacturers' manuals, reference material (fiel

Page 16

STP 11-25R13-SM-TG 3 - 88 References Required Related DA Pam 25-30 AR 25-30 DA Pam 25-33 AR 25-400-2 DA Pam 25-40 AR 380-19 DA Pam 750-35

Page 17

STP 11-25R13-SM-TG 3 - 89 MAINTAIN A BENCH STOCK 113-631-6009 Conditions: Equipped with a maintenance section's bench stock in a controlled area

Page 18

STP 11-25R13-SM-TG 3 - 90 Skill Level 3 Subject Area 9: LOCAL AREA NETWORK (LAN) MAINTAIN AN AUDIO-VIDEO LAN 113-575-3056 Conditions: Given an audio

Page 19

STP 11-25R13-SM-TG 3 - 91 ESTABLISH AN AUDIO-VIDEO LOCAL AREA NETWORK (LAN) 113-575-1006 Conditions: Given an audio-video system (such as an AudioVAU

Page 20

STP 11-25R13-SM-TG 3 - 92 Subject Area 10: HAND RECEIPTS CONDUCT A HAND RECEIPT INVENTORY 113-631-6010 Conditions: In a tactical or garrison enviro

Page 21

STP 11-25R13-SM-TG 3 - 93 Performance Measures Results 8. Initiate adjustment action (such as cash collection voucher, statement of charges, or re

Page 22 - MOS 25R13

STP 11-25R13-SM-TG 3 - 94 MAINTAIN A HAND RECEIPT ACCOUNT 113-631-6011 Conditions: In a tactical or garrison environment, given DA Form 2062/DA Form

Page 23

STP 11-25R13-SM-TG 3 - 95 Performance Measures Results 17. Read and understand the PBO guidelines (if provided) for management of property and requ

Page 24

STP 11-25R13-SM-TG 1 - 4 Figure 1-1. Skill Level and Training Progression, MOS 25R

Page 25 - MOS/SKILL LEVEL TASKS

STP 11-25R13-SM-TG 3 - 96 Subject Area 11: TECHNICAL SUPERVISION CONDUCT A TECHNICAL INSPECTION (TI) FOR TURN-IN 113-575-5020 Conditions: In a tacti

Page 26

STP 11-25R13-SM-TG 3 - 97 ESTABLISH A VISUAL INFORMATION (VI) MAINTENANCE PROGRAM 113-631-8003 Conditions: In a tactical or garrison environment, giv

Page 27

STP 11-25R13-SM-TG 3 - 98 Performance Measures Results 6. Train equipment operators to perform PMCS within their authorized level of maintenance a

Page 28

STP 11-25R13-SM-TG 3 - 99 Subject Area 12: DESIGN/DEVELOP DESIGN AN AUDIOVISUAL (AV) SYSTEM 113-575-9006 Conditions: In a tactical or garrison envir

Page 29

STP 11-25R13-SM-TG 3 - 100 Performance Measures Results 16. Add legends and notes to clarify specifics about a particular drawing. Include such it

Page 30

STP 11-25R13-SM-TG 3 - 101 DESIGN A CLOSED-CIRCUIT TELEVISION (CCTV) SYSTEM 113-631-8004 Conditions: In a tactical or garrison environment, given a r

Page 31

STP 11-25R13-SM-TG 3 - 102 PERFORM A VISUAL INFORMATION (VI) SITE SURVEY 113-631-8005 Conditions: In a tactical or garrison environment, given a date

Page 32

STP 11-25R13-SM-TG 3 - 103 INSTALL A REMOTE BROADCAST SITE 113-575-1007 Conditions: In a tactical or garrison environment, given a broadcast producti

Page 33

STP 11-25R13-SM-TG 3 - 104 DEVELOP TECHNICAL SPECIFICATION REQUIREMENTS FOR EQUIPMENT PROCUREMENT 113-631-8006 Conditions: In a tactical or garrison

Page 34

STP 11-25R13-SM-TG A - 1 APPENDIX A – SOLDERING TIPS AND GUIDELINES A-1. Introduction. In the course of your military career, as required by you

Page 35

STP 11-25R13-SM-TG 1 - 5 1-7. TRAINING PROBLEMS UNIQUE TO MOS 25R a. Training problems in MOS 25R occur where mission requirements restrict the tim

Page 36

STP 11-25R13-SM-TG A - 2 Carelessness and the disregard of safety regulations are the two major causes of accidents. Failure to observe a simple saf

Page 37

STP 11-25R13-SM-TG A - 3 a. Accessories. The various accessories available for the soldering station make it suitable for such work as controlled

Page 38

STP 11-25R13-SM-TG A - 4 (3) Thermal shunts (Figure A-5), commonly called heat sinks, are used to protect heat-sensitive devices and components by

Page 39

STP 11-25R13-SM-TG A - 5 (6) A typical lead-cleaning tool (Figure A-8) is composed of 1/2-inch of tinned copper shielding braid mounted in a spr

Page 40

STP 11-25R13-SM-TG A - 6 (10) Soldering aids are used for desoldering components. The slotted ends are for moving and lifting component leads and

Page 41

STP 11-25R13-SM-TG A - 7 c. Solder fillet is a smooth concave buildup of solder between connected metal surfaces. d. Wicking is a condition in w

Page 42

STP 11-25R13-SM-TG A - 8 Figure A-12. Wire Conditions after Stripping A-10. Tinning. Place the wire on the soldering iron tip near the insulat

Page 43

STP 11-25R13-SM-TG A - 9 Figure A-13. Acceptable and Unacceptable Lead Conditions Figure A-14. Correct Method for Tinning a Wire

Page 44

STP 11-25R13-SM-TG A - 10 A-11. General Soldering Procedures. Whenever practical, connections shall be mechanically secure prior to soldering. Sol

Page 45

STP 11-25R13-SM-TG A - 11 A-14. Clean Excess Solder. Clean excess solder from the board before replacing the component. a. Place the lead of t

Page 47

STP 11-25R13-SM-TG B - 1APPENDIX B – BASIC CIRCUIT GUIDELINES, TIPS, AND COMPONENT SYMBOLS B-1. Introduction. This appendix covers the basic fun

Page 48

STP 11-25R13-SM-TG B - 2 (3) Diodes. All diodes can be checked for an open or shorted condition by measuring the resistance between the terminals

Page 49

STP 11-25R13-SM-TG B - 3 Figure B-1. Component Symbols and Abbreviations

Page 50

STP 11-25R13-SM-TG B - 4 Figure B-1. Component Symbols and Abbreviations (continued)

Page 51

STP 11-25R13-SM-TG C - 1 APPENDIX C – OSCILLATOR CIRCUIT GUIDELINES C-1. Vibrating Frequency. The natural vibrating frequency of a crystal depen

Page 52

STP 11-25R13-SM-TG C - 2 C-3. Voltage Testing. Voltage testing at the transistor terminals will determine whether or not the transistor is conducti

Page 53

STP 11-25R13-SM-TG C - 3 c. Now suppose that when you checked the output of the Hartley oscillator there was no AC output, but a check of the ta

Page 54

STP 11-25R13-SM-TG C - 4 C-7. Troubleshooting Oscillator Circuits. a. If the phase shift oscillator has no output signal, there will be no signa

Page 55

STP 11-25R13-SM-TG D - 1 APPENDIX D – COMMON EMITTER, COMMON BASE, AND COMMON COLLECTOR AMPLIFIERS GUIDELINES D-1. Introduction. If there is an

Page 56

STP 11-25R13-SM-TG D - 2 (2) If the bypass capacitor opens, there will be an inverse current feedback in the emitter and this will decrease the gain

Page 57

STP 11-25R13-SM-TG 2 - 1 CHAPTER 2 TRAINER'S GUIDE (TG) 2-1. GENERAL a. The TG identifies the essential components of a unit training plan f

Page 58

STP 11-25R13-SM-TG D - 3 D-5. Theory, Operational Characteristics, and Troubleshooting Procedures for Bipolar and FET-Type Amplifiers. a. The CE

Page 59

STP 11-25R13-SM-TG D - 4 b. A positive signal applied to the emitter, through Cl, causes Ql to decrease its conduction, increasing the output voltag

Page 60

STP 11-25R13-SM-TG D - 5 c. R2 Increase and Decrease. Since R2 is used for stabilization, increasing or decreasing R2 will have a smaller effect

Page 61

STP 11-25R13-SM-TG E - 1APPENDIX E – RC COUPLED AMPLIFIER GUIDELINES E-1. Troubleshooting RC-Coupled Amplifiers. When there is no AC signal outp

Page 62

STP 11-25R13-SM-TG E - 2 E-2. Collector Voltage. The two extreme cases are full VCC voltage at the collector and zero collector voltage. Both can

Page 63

STP 11-25R13-SM-TG F - 1APPENDIX F – MULTIVIBRATOR CIRCUITS TROUBLESHOOTING GUIDELINES F-1. Basic Approach to Troubleshooting Multivibrator (MV)

Page 64

STP 11-25R13-SM-TG F - 2 j. If the transistor in the circuit is suspected of being at fault, isolate the leads and check the front-to-back resista

Page 65

STP 11-25R13-SM-TG F - 3 (5) If the two outputs are not symmetrical, then an adjustment of R6 should correct this problem. (6) Any change in

Page 66

STP 11-25R13-SM-TG F - 4 c. Monostable MV. (1) Without an input trigger pulse, the monostable MV remains in its static condition. When the circ

Page 67

STP 11-25R13-SM-TG G - 1APPENDIX G – DIFFERENTIAL AMPLIFIER GUIDELINES G-1. Modes of Operation. The differential amplifier has different modes o

Page 68

STP 11-25R13-SM-TG 2 - 2 2-4. TRAINER’S RESPONSIBILITIES Training soldier and leader tasks to standard and relating this training to collective m

Page 69

STP 11-25R13-SM-TG G - 2 c. If the output signal on the collector of Ql is missing, check Ql and its load resistor (R3). If Q2's collector s

Page 70

STP 11-25R13-SM-TG H - 1APPENDIX H – CAPACITOR GUIDELINES NOTE: If an unexpected breakdown occurs, locate and correct the fault by using careful

Page 71

STP 11-25R13-SM-TG I - 1APPENDIX I – LOW PASS FILTER GUIDELINES I-1. Introduction. In electronic circuits, defective capacitors and inductors mu

Page 72

STP 11-25R13-SM-TG I - 2 d. Shorted Inductors. There are two types of shorts that can occur in an inductor; complete shorts and partial shorts.

Page 73

STP 11-25R13-SM-TG J - 1APPENDIX J – HIGH PASS FILTER GUIDELINES J-1. Introduction. In a high pass filter (HPF), as shown in Figure J-1, the cap

Page 74

STP 11-25R13-SM-TG K - 1APPENDIX K – BANDPASS FILTER GUIDELINES K-1. Introduction. A bandpass filter is designed to pass frequencies within a co

Page 75

STP 11-25R13-SM-TG K - 2 K-4. Completely Shorted Parallel Tank Circuit Components. If either of the parallel tank circuit components were to go com

Page 76

STP 11-25R13-SM-TG K - 3 Figure K-5. Series Component Opens Figure K-6. Band Reject Filter NOTE: Refer to Figures K-5 and K-6 for the follo

Page 77

STP 11-25R13-SM-TG K - 4 Figure K-7. L2 or C2 Open e. If either series component (Ll or Cl) were to completely short, the entire series portion

Page 78

STP 11-25R13-SM-TG L - 1APPENDIX L – COIL GUIDELINES L-1. Malfunctions. A coil can malfunction in either of two ways: an open or a short. The mos

Page 79

STP 11-25R13-SM-TG 2 - 3 (2) Plan the training. Training for specific tasks can usually be integrated or conducted concurrently with other training

Page 80

STP 11-25R13-SM-TG M - 1APPENDIX M – TRANSFORMER GUIDELINES M-1. Introduction. Transformers (XFMRs) are extremely reliable devices because they ha

Page 81

STP 11-25R13-SM-TG N - 1APPENDIX N – DIODE TESTING GUIDELINES N-1. Introduction. As shown in Figure N-1, a diode will exhibit different resistan

Page 82

STP 11-25R13-SM-TG N - 2 N-2. Diode Front-to-Back Ratio Check. A multimeter can be used as an ohmmeter to check the condition of a solid-state diod

Page 83

STP 11-25R13-SM-TG O - 1APPENDIX O – CLIPPER AND CLAMPER CIRCUITS GUIDELINES O-1. Introduction. Diode clipper circuits consist primarily of a di

Page 84

STP 11-25R13-SM-TG O - 2 In a positive or negative diode clamper with zero reference level (Figure O-1), if the resistor or diode were to short there

Page 85

STP 11-25R13-SM-TG O - 3Some circuit applications require an input waveform that is clamped to some DC level other than zero volts or ground. To o

Page 86

STP 11-25R13-SM-TG P - 1 APPENDIX P – ZENER DIODE AND REGULATOR GUIDELINES P-1. Zener Diode. A solid-state diode may develop either an open or a

Page 87

STP 11-25R13-SM-TG P - 2 a. A shorted Ql would cause excessive current to flow in the circuit, which may or may not cause several associated malfu

Page 88

STP 11-25R13-SM-TG P - 3 c. Other components, including R3 and R5, could cause trouble as well. (1) If resistor R3 were to open, then the b

Page 89

STP 11-25R13-SM-TG P - 4 (4) Transistor Ql could also develop a short or an open. If an open were to occur in either the emitter or the collector

Page 90

STP 11-25R13-SM-TG 2 - 4 (5) Score each soldier according to the performance measures and Evaluation Guidance section in the task summary. (6) Reco

Page 91

STP 11-25R13-SM-TG Q - 1 APPENDIX Q – LOGIC CIRCUITS GUIDELINES (INCLUDING DIGITAL MATHEMATICS) Q-1. Introduction. Troubleshooting digital circ

Page 92

STP 11-25R13-SM-TG Q - 2 b. When the tip is touched to a pin with logic high, the light becomes bright. When the tip is touched to ground or a

Page 93

STP 11-25R13-SM-TG Q - 3 Figure Q-3. High Output b. The pulser is connected to a typical logic low, 1V. When the push-button is depressed, th

Page 94

STP 11-25R13-SM-TG Q - 4 (1) Using the decimal system in electronics would be quite difficult and elaborate because for a circuit to count there

Page 95

STP 11-25R13-SM-TG Q - 5 (1) The symbol for disjunction is (+), so the logic function can be written as "A + B = C" and is read as &qu

Page 96

STP 11-25R13-SM-TG Q - 6 constants, the variables in the theorems of Boolean algebra can only assume a 1 or a 0. Table Q-6 lists the 13 basic theor

Page 97

STP 11-25R13-SM-TG Q - 7 (3) The Associative Law: It makes no difference in what order parts of an AND or an OR expression are combined: A(

Page 98

STP 11-25R13-SM-TG Q - 8 binary can quickly result in numbers with 20 or more digits. This leads to the use of decimal, octal, and hexadecimal numb

Page 99

STP 11-25R13-SM-TG Q - 9 (5) Since each place to the left of the decimal point represents a power of 10, see in this example how the number 42,337

Page 100

STP 11-25R13-SM-TG Q - 10 (d) Add the decimal values. This is the decimal equivalent of the binary number. (4) Using the procedure above, co

Page 101

STP 11-25R13-SM-TG 2 - 5 (2) Have soldiers practice the task until they can perform it to SM standards. (3) Evaluate each soldier using the evaluat

Page 102

STP 11-25R13-SM-TG Q - 11 (8) With the knowledge of place value, recognizing and counting binary numbers from 1 to 10 is easy. Table Q-9 shows t

Page 103

STP 11-25R13-SM-TG Q - 12 (13) Using the short division method, note the conversion of the decimal number 55. Remainder 2 55 2 2

Page 104

STP 11-25R13-SM-TG Q - 13 1010 10 (8 + 0 + 2 + 0) + 11 +3 (2 + 1) 11012 1310 (8 + 4 + 0 + 1) (4) Another example of bina

Page 105

STP 11-25R13-SM-TG Q - 14

Page 106

STP 11-25R13-SM-TG Q - 15 (4) When subtracting larger binary numbers, complete the borrowing process before subtracting to reduce any chance of e

Page 107

STP 11-25R13-SM-TG Q - 16 binary readouts are displayed on a light panel. As a technician performing maintenance tests, you may have to compare a b

Page 108

STP 11-25R13-SM-TG Q - 17 (6) Binary to octal conversion is commonplace. A typical binary indication using a light panel (display register) is s

Page 109

STP 11-25R13-SM-TG Q - 18 (13) Converting a large binary number directly to decimal can be time-consuming. Using the octal system, the conversio

Page 110

STP 11-25R13-SM-TG Q - 19 (3) Applying this method, the conversion of binary number 101101011111100011012 to a hexadecimal looks like this:

Page 111

STP 11-25R13-SM-TG Q - 20 b. AND function. An AND gate performs the mathematical operation of conjunction as discussed earlier. It requires that

Page 113

STP 11-25R13-SM-TG 2 - 6 • Training Location column. This column identifies the training location where the task is first trained to soldier trainin

Page 114

STP 11-25R13-SM-TG Q - 21 c. OR Gate. The OR gate performs the mathematical operation of disjunction. Any input or all inputs present will produc

Page 115

STP 11-25R13-SM-TG Q - 22 e. NAND Function. A NAND gate can be defined as the complement of an AND gate. Reviewing the truth table for an AND gat

Page 116

STP 11-25R13-SM-TG Q - 23 (4) The second way of constructing a NAND gate is to feed the inputs into an AND gate and then invert the output. This

Page 117

STP 11-25R13-SM-TG Q - 24 (3) From the truth table in Figure Q-15, you can see that this configuration satisfies the definition of a NOR gate. T

Page 118

STP 11-25R13-SM-TG Q - 25 Figure Q-20. XOR Gate (1) Looking at the truth table, you can derive a Boolean expression for the XOR gate:

Page 119

STP 11-25R13-SM-TG Q - 26 i. Inhibited Gates. An inhibited gate is a type of gate that has logic level inputs that are different from each other.

Page 120

STP 11-25R13-SM-TG Q - 27may be new to you. The first is Qn, which indicates the state of Q at a certain time n. Qn usually represents the state

Page 121

STP 11-25R13-SM-TG Q - 28 (7) If at this time you made input R high, nothing would happen because the FF is already set. (NOTE: Most of the time

Page 122

STP 11-25R13-SM-TG Q - 29 Figure Q-26. R-S Flip-Flop with State Indicator Outputs _ (14) The outputs would still be Q = 0 and Q = 1 in th

Page 123

STP 11-25R13-SM-TG Q - 30 c. Clocked R-S Flip-Flop. The clocked R-S FF is a special version of the R-S FF. (1) Suppose you had two signal

Page 124

STP 11-25R13-SM-TG 2 - 7 MOS TRAINING PLAN MOS 25R PART ONE. SUBJECT AREAS AND DUTY POSITIONS SECTION II. DUTY POSITION TRAINING REQUIREMENTS SL

Page 125

STP 11-25R13-SM-TG Q - 31 Figure Q-28. Clocked R-S Flip-Flop Table Q-18. Truth Table for Clocked R-S FF (3) The clocked R-S FF

Page 126

STP 11-25R13-SM-TG Q - 32 negative edge of the clock. Thus the input is isolated from the output because only one FF is active at any time. Figur

Page 127

STP 11-25R13-SM-TG Q - 33 e. Toggle Flip-Flop (T FF). In the T FF, the output changes state every time an activating input is applied. The T FF

Page 128

STP 11-25R13-SM-TG Q - 34 f. Data Flip-Flop (D FF). (1) In the previous FF, outputs were indeterminate. One way to eliminate this is to supp

Page 129

STP 11-25R13-SM-TG Q - 35 g. J-K Flip-Flop. The J-K FF is the universal FF. It comes as a synchronous (non-clocked) and synchronous (clocked). T

Page 130

STP 11-25R13-SM-TG Q - 36 Figure Q-32. J-K Flip-Flop

Page 131

STP 11-25R13-SM-TG Q - 37 c. Characteristics. (1) Open loop voltage gain (AVOL) is the differential gain of the op amp with no feedback. The f

Page 132

STP 11-25R13-SM-TG Q - 38 (6) The input resistance (Ri) is the resistance looking into the two inputs as seen in Figure Q-34. Ideally this value

Page 133

STP 11-25R13-SM-TG Q - 39 Figure Q-36. Noninverting Amplifier e. The voltage follower, shown in Figure Q-37, is nothing more than a buffer sta

Page 134

STP 11-25R13-SM-TG Q - 40 g. The integrator (Figure Q-39) produces an integrated output and employs what is called feed-forward. Figure Q-39.

Page 135

STP 11-25R13-SM-TG 2 - 8 MOS TRAINING PLAN MOS 25R13 PART TWO. CRITICAL TASKS Skill Levels 1-3 Subject Area Task Number Title Training Locat

Page 136

STP 11-25R13-SM-TG Q - 41Figure Q-41. Voltage Limiter j. The differential comparator (Figure Q-42) is used to compare two voltage sources and

Page 137

STP 11-25R13-SM-TG R - 1 APPENDIX R – RELAY GUIDELINES R-1. Problems with Relays. a. The moving armature in a relay can cause malfunctions du

Page 138

STP 11-25R13-SM-TG R - 2 expected at contacts 2 and 4, with a zero volt reading at contact 5. Improper readings would indicate a malfunction. R-3.

Page 139

STP 11-25R13-SM-TG S - 1 APPENDIX S - REFERENCE DATA FOR NATIONAL TELEVISION SYSTEMS COMMITTEE (NTSC) TELEVISION SYSTEMS, FUNDAMENTALS OF COLOR,

Page 140 - COMPONENT SYMBOLS

STP 11-25R13-SM-TG S - 2 Table S-2. Propagation Delay Through Coaxial Cable (All figures are based on 0.66 velocity factor). 1 nsec = 7.

Page 141

STP 11-25R13-SM-TG S - 3 Table S-3. Details of Vertical Blanking PERIOD TIME Total Vertical field 1/60 = 0.0167 sec V Blanking

Page 142 - STP 11-25R13-SM-TG

STP 11-25R13-SM-TG S - 4 Table S-4. Details of Horizontal Blanking PERIOD TIME Total H line 63.5 usec H Blanking 9.5 to 11.5 usec

Page 143 - STP 11-25R13-SM-TG

STP 11-25R13-SM-TG S - 5 S-1. Functions. a. The composite video signal includes the image signal obtained from the camera pickup, blanking pu

Page 144

STP 11-25R13-SM-TG S - 6 c. Vertical Synchronizing Pulse (Vertical Sync). Vertical sync pulses (Figure S-4) are rectangular pulses that synchronize

Page 145

STP 11-25R13-SM-TG S - 7 Figure S-4. Vertical and Horizontal Interval (part one) Figure S-5. Vertical and Horizontal Interval (part two)

Page 146

STP 11-25R13-SM-TG 2 - 9 PART TWO. CRITICAL TASKS Skill Levels 1-3 Subject Area Task Number Title Training Location Sust Tng Freq Sust Tng SL

Page 147

STP 11-25R13-SM-TG S - 8 Section III. FUNDAMENTALS OF COLOR I S-4. Introduction. To understand color TV systems, a basic background in the fundam

Page 148

STP 11-25R13-SM-TG S - 9 eye do not have time to respond to an image on the retina. The time threshold is also dependent upon the size, brightness

Page 149

STP 11-25R13-SM-TG S - 10 Figure S-6. Radiant Energy Spectrum Figure S-7. Visible Light Spectrum Figure S-8. Portion of Visible Light U

Page 150

STP 11-25R13-SM-TG S - 11 c. When the entire light spectrum from 400 to 700 nanometers is presented to the eye in nearly equal proportions, whit

Page 151

STP 11-25R13-SM-TG S - 12 S-11. Luminosity Curve. The fact that the human eye does not perceive each color with equal efficiency is due in some way

Page 152

STP 11-25R13-SM-TG S - 13 S-13. Color Information and Facts. Any given color, within limitations, can be reproduced or matched by mixing three pr

Page 153

STP 11-25R13-SM-TG S - 14 (1) When a secondary color is combined with its complementary primary, white is produced. For example, combining yellow

Page 154

STP 11-25R13-SM-TG S - 15 (3) For practical purposes, the three-dimensional Maxwell triangle was converted to a two-dimensional drawing and was

Page 155

STP 11-25R13-SM-TG S - 16 (7) When primary colors were selected for color television work, it was found that those primaries must, of necessity, b

Page 156

STP 11-25R13-SM-TG S - 17 c. As previously stated, color television programs must be transmitted so they can be faithfully reproduced by present

Page 157

STP 11-25R13-SM-TG 2 - 10 PART TWO. CRITICAL TASKS Skill Levels 1-3 Subject Area Task Number Title Training Location Sust Tng Freq Sust Tng S

Page 158

STP 11-25R13-SM-TG S - 18 Section VI. THE NTSC COLOR TELEVISION SYSTEM S-18. General. The NTSC is a research group set up by the leading equipmen

Page 159

STP 11-25R13-SM-TG S - 19 Figure S-18. Distribution of Energy in a Frequency b. Since the scanning rates for the chrominance (color) and fo

Page 160

STP 11-25R13-SM-TG S - 20 (1) Y (Luminance) = 0.30R + 0.59G + 0.11B; where: Y = a mathematical symbol representing the luminance signal, R = red

Page 161

STP 11-25R13-SM-TG S - 21 (4) The terms monochrome and luminance are synonymous. They are also often referred to as the brightness signal. Eve

Page 162

STP 11-25R13-SM-TG S - 22 Figure S-20. Black and White Video Energy Distribution Figure S-21. Placement of the Color Subcarrier (6) A ver

Page 163

STP 11-25R13-SM-TG S - 23 (7) This frequency is within the deviation limit set by the NTSC monochrome standards. With the horizontal scan frequ

Page 164

STP 11-25R13-SM-TG S - 24 a. Transmitting symmetrical or double sidebands of chrominance would mean that color definition would be limited to 0.5

Page 165

STP 11-25R13-SM-TG S - 25 i. The readjustment of chrominance signal phases is called high definition color transmission and is the system of col

Page 166

STP 11-25R13-SM-TG S - 26 Figure S-24. Simplified Block Diagram of an Encoder b. Matrixing is the process of repackaging the information contain

Page 167

STP 11-25R13-SM-TG S - 27 c. The Y Signal is formed by applying the red, green, and blue pickup tube outputs to the base of an amplifier (see Figu

Page 168

STP 11-25R13-SM-TG 3 - 1 CHAPTER 3 MOS/SKILL LEVEL TASKS Skill Level 1 Subject Area 1: MAINTENANCE PERFORM PMCS ON AN ANALOG TAPE RECORDER/REPRODU

Page 169 - APPENDIX L – COIL GUIDELINES

STP 11-25R13-SM-TG S - 28 e. The Q Signal. Applying the green signal to the base and the red and blue to the emitter of the Q amplifier forms the

Page 170

STP 11-25R13-SM-TG S - 29 g. Two-Phase Modulation (Generation of the Color Signal). Refer to Figure S-28, where the I and Q output of the filter s

Page 171

STP 11-25R13-SM-TG S - 30 (3) In the mixer section of the colorplexer (refer to Figure S-24), the outputs of the Y, I, Q, and burst keyer sections

Page 172

STP 11-25R13-SM-TG S - 31 Section VII. TEST SIGNAL DESCRIPTIONS S-23. Full-Field Color Bars. The full-field color bar (Figure S-30) signal is u

Page 173

STP 11-25R13-SM-TG S - 32 Figure S-32. EIA Color Bars S-25. Multiburst. The multiburst signal (Figure S-33) is used to check the frequency resp

Page 174

STP 11-25R13-SM-TG S - 33 Figure S-33. Multiburst Signal

Page 175

STP 11-25R13-SM-TG S - 34 S-26. Window. The window signal (Figure S-34) is used to check low frequency response and line-time distortion. Low freq

Page 176

STP 11-25R13-SM-TG S - 35 S-27. Field Square Wave. One use for the field square wave (Figure S-35) is to check field-time distortion (tilt), whic

Page 177

STP 11-25R13-SM-TG S - 36 S-28. Flat Field. During the active portion of each field, this signal has a luminance level which is variable from 0 to

Page 178

STP 11-25R13-SM-TG S - 37 Figure S-37. Flat Field Signals (continued)

Page 179

STP 11-25R13-SM-TG 3 - 2 Performance Measures Results NOTE: Demagnetizing removes residual magnetic fields that build up on ferrous pole pieces of t

Page 180

STP 11-25R13-SM-TG S - 38 S-29. Linearity. Linearity test signals (Figure S-38) are used to measure nonlinear distortions such as differential gain

Page 181

STP 11-25R13-SM-TG S - 39 S-30. Modulated Pedestal. The modulated pedestal signal (Figure S-39) consists of three chrominance levels (20, 40, and

Page 182

STP 11-25R13-SM-TG S - 40 S-31. SIN2 Pulse and Bar. The components of the pulse and bar signal are the 12.5T modulated pulse, the 2T pulse, and the

Page 183

STP 11-25R13-SM-TG S - 41 Figure S-41. SIN2 Pulse and Bar Test Signal (continued) S-32. Noise. Noise encountered in a TV system is usually of

Page 184

STP 11-25R13-SM-TG S - 42 Figure S-42. Noise Measurement and Adjustment

Page 185

STP 11-25R13-SM-TG S - 43 b. In the deletion mode, the 147A and 1430 delete the entire active portion of the line and insert a noise-free pedest

Page 186

STP 11-25R13-SM-TG S - 44 Figure S-44. Single-Field Pulse Cross Display Figure S-45. Measurement with a Vectorscope

Page 187

STP 11-25R13-SM-TG T - 1 APPENDIX T – EXCERPT FROM TECHNICAL BULLETIN (TB) 385-4 SAFETY PRECAUTIONS FOR MAINTENANCE OF ELECTRICAL/ELECTRONIC EQ

Page 188

STP 11-25R13-SM-TG T - 2 Technical information and assistance in determining the advisability of granting waivers may be obtained by communicating w

Page 189

STP 11-25R13-SM-TG T - 3 b. For pulsed electrical discharges (as from a capacitor), the distinction between categories (2) and (3) above do no

Page 190 - Dividend

STP 11-25R13-SM-TG 3 - 3 PERFORM PREVENTIVE MAINTENANCE OF A STILL VIDEO SYSTEM 113-575-3049 Conditions: In a tactical or garrison environment, given

Page 191

STP 11-25R13-SM-TG T - 4 T-12. Summary of Lethal Effects of Electric Current. a. If long continued, currents in excess of one's let-go-cur

Page 192

STP 11-25R13-SM-TG T - 5 work will stop until they have been discharged, unless otherwise specified in maintenance/repair manuals. (1) Condu

Page 193

STP 11-25R13-SM-TG T - 6 g. Knives, screwdrivers, or other thin-edged tools will not be used to remove vacuum tubes. Tube pullers will be used f

Page 194

STP 11-25R13-SM-TG T - 7 Figure T-1. Testing Insulating Floors l. When properly constructed and equipped, safety boards can be used to gr

Page 195

STP 11-25R13-SM-TG T - 8 (b) Rope, halyard, 3/8-inch, 25 feet, NSN 4020-00-174-3031. (c) Gloves, rubber, 3000 volts, sizes 9-12, NSN 8415-00-

Page 196

STP 11-25R13-SM-TG T - 9 Figure T-3. Safety Hook; Fabrication Diagram NOTE: First aid kits, resuscitators, and snakebite kits may also be

Page 197

STP 11-25R13-SM-TG T - 10 o. Inspect for worn spots, breaks, cracks in covering, and condition of connectors including mating with cable and bent

Page 198

STP 11-25R13-SM-TG T - 11 (1) If an interlock has a bypass position, this position should be used only when power is required during open doo

Page 199

STP 11-25R13-SM-TG T - 12 (9) Germicidal lamps and other ultraviolet sources. b. All of the above sources can be dangerous when viewed direct

Page 200

STP 11-25R13-SM-TG T - 13 b. Laser Location. Laser equipment should be located in a work area away from heavily populated areas, isolated fr

Page 201

STP 11-25R13-SM-TG 3 - 4 Performance Measures Results c. Fill out a DA Form 2407 to identify discrepancies requiring corrective maintenance. P F

Page 202

STP 11-25R13-SM-TG T - 14 (1) All high-voltage equipment and components will be shielded to protect personnel from electrical shock. The main po

Page 203

STP 11-25R13-SM-TG T - 15 (2) Free space transmission of microwave energy inside building areas or toward areas occupied by personnel will no

Page 204

STP 11-25R13-SM-TG T - 16 b. RF potentials induced in metal objects may be sufficient to cause electric shock when contacted by personnel. Altho

Page 205

STP 11-25R13-SM-TG T - 17 Section IV. MISCELLANEOUS HAZARDS T-23. Mercury. Very small amounts of mercury can vaporize and result in dangerou

Page 206

STP 11-25R13-SM-TG T - 18 h. Do the following whenever mercury is spilled: (1) Deactivate equipment, give the alarm, and activate exhaust sys

Page 207

STP 11-25R13-SM-TG T - 19 T-25. Flammable Material. Flammable liquids, gases, and solids will not be stored in bulk quantity in the maintenanc

Page 208

STP 11-25R13-SM-TG T - 20 (2) Radiation levels are maintained so that an individual will not receive a radiation dose in excess of 2 millirems in

Page 209

STP 11-25R13-SM-TG T - 21 T-32. Maintenance. a. Defective radioactive items are generally nonrepairable; however, if maintenance is autho

Page 210

STP 11-25R13-SM-TG T - 22 to determine the proper type of shielding to be used and its effectiveness with the particular source of radiation used.

Page 211

STP 11-25R13-SM-TG T - 23 (i) If an individual receives a cut or skin abrasion while handling any radioactive item, or if radioactive materia

Page 212

STP 11-25R13-SM-TG 3 - 5 PERFORM PREVENTIVE MAINTENANCE OF A VIDEO RECORDER/REPRODUCER 113-575-3050 Conditions: In a tactical or garrison environment

Page 213

STP 11-25R13-SM-TG T - 24 (f) All patients suspected of contamination with radioactive material should be taken to a medical facility where appro

Page 214

STP 11-25R13-SM-TG T - 25 Section VI. OTHER PRECAUTIONS T-33. Troubleshooting, Repairing, and Calibrating Equipment. a. Inspect all inter

Page 215

STP 11-25R13-SM-TG T - 26 i. Never put your hand on or near a capacitor bank or anything attached to a capacitor unless a hard ground wire has fi

Page 216

STP 11-25R13-SM-TG T - 27 d. On mobile facilities, the vehicle will be grounded through a commercial power grounding system when commercial p

Page 217

STP 11-25R13-SM-TG T - 28 T-36. First Aid Procedures for Shock Victims. a. Before touching a victim of electric shock, the circuit should be de

Page 218

STP 11-25R13-SM-TG T - 29 (c) Relax immediately after each downstroke to permit natural expansion of the breast. (d) Repeat at the rate o

Page 219

STP 11-25R13-SM-TG U - 1 APPENDIX U – PRINCIPLES OF MICROWAVE U-1. Introduction. Microwave transmitters play an important part of Armed Forces R

Page 220

STP 11-25R13-SM-TG U - 2 (2) In short-haul systems, the remodulating system offers comparable performance at a lower cost and with greater flexibi

Page 221

STP 11-25R13-SM-TG U - 3 (5) Weatherproof housing for portable equipment. (6) Ruggedized packaging for vehicular mobile equipment. c. B

Page 222

STP 11-25R13-SM-TG U - 4 (2) A more state-of-the-art approach uses a phase-locked oscillator as the microwave source. Here a microwave IC divider

Page 223 - AND TELEVISION SYSTEMS

1STP 11-25R13-SM-TG i *SOLDIER TRAINING HEADQUARTERS PUBLICATION DEPARTMENT OF THE ARMY No. 11-25R13-SM-TG

Page 224

STP 11-25R13-SM-TG 3 - 6 Performance Steps 11. Inspect lubrication of components (capstan, motor, lever, gear shaft, threading ring, or cam assembli

Page 225

STP 11-25R13-SM-TG U - 5 Figure U-2. Receiver Block Diagram (2) Mixers are usually balanced mixers and often double balanced. If no low-noi

Page 226

STP 11-25R13-SM-TG U - 6 o. Other Noise Performance Factors. (1) The 70 MHz IF preamplifier is often mechanically integrated with the mixer to a

Page 227

STP 11-25R13-SM-TG U - 7 U-4. Basic Heterodyne TV Microwave. a. The receiver in a heterodyne system is almost identical to the remodulating re

Page 228

STP 11-25R13-SM-TG U - 8 U-5. Power Supplies. a. Whether remodulating or heterodyne, microwave equipment uses several different voltages to powe

Page 229

STP 11-25R13-SM-TG U - 9 b. In all uses, the deviation is generally 20 dB below the peak video deviation of 4 MHz. c. Program Audio Subcarri

Page 230

STP 11-25R13-SM-TG U - 10 (3) Due to residual nonlinearity in the microwave modulator and demodulator, as well as in the path, sometimes cross modul

Page 231

STP 11-25R13-SM-TG U - 11 (3) Grid Antennas. Cannot be used with cross-polarized feeds, as they will only reflect signals that are polarized in

Page 232

STP 11-25R13-SM-TG U - 12 (a) Compressor/dehydrator units to supply regulated dry air can be fully automatic (the desiccant is dried out periodica

Page 233

STP 11-25R13-SM-TG U - 13 (2) A passive repeater has equal gain receiving and transmitting. Gain here is defined as the ratio of the power at a

Page 234

STP 11-25R13-SM-TG U - 14 d. K Factor. (1) The pressure and hence the density of the atmosphere surrounding the earth varies with height, gettin

Page 235

STP 11-25R13-SM-TG 3 - 7 Performance Measures Results 1. Turn OFF and remove power from the VTR. P F 2. Clean the VTR exterior. P F 3.

Page 236

STP 11-25R13-SM-TG V - 1 APPENDIX V – INTERNATIONAL MARITIME SATELLITE (INMARSAT) V-1. The Magnaphone 2020P. a. Introduction. (1) The MX 2020P

Page 237

STP 11-25R13-SM-TG V - 2 d. Features (Table V-1). Table V-1. Magnaphone 2020P Features e. Product Configurations. (1) The Magnaphone is desig

Page 238

STP 11-25R13-SM-TG V - 3 f. Peripheral Devices. Table V-3. Magnaphone 2020P Peripheral Devices NOTE: A soft carrying case and a hard transit case

Page 239

STP 11-25R13-SM-TG V - 4 (d) Optional Control Console: 6 pounds (2.7 kg); 9 inches (H) x 10.7 inches (W) x 3.5 inches (D) (22.9 x 27.2 x 8.9 cm).

Page 240

STP 11-25R13-SM-TG V - 5 Figure V-1. Global Communications via INMARSAT

Page 241

STP 11-25R13-SM-TG W - 1APPENDIX W – DA FORM 5164-R (HANDS-ON EVALUATION) W-1. Introduction. The DA Form 5164-R (Hands-On Evaluation) allows the

Page 242

STP 11-25R13-SM-TG W - 2 Figure W-1. Sample of a Completed DA Form 5164-R

Page 243

STP 11-25R13-SM-TG Glossary - 1 GLOSSARY Section I Abbreviations 10X ten times A&E azimuth and elevation AAR After-Action Review AC alterna

Page 244

STP 11-25R13-SM-TG Glossary - 2 attn attention AUD Audio; audition AUTO automatic AV audiovisual AWG American Wire Gauge B blue BB black burst

Page 245

STP 11-25R13-SM-TG Glossary - 3 CD-ROM Compact Disk-Read Only Memory CE common emitter CG character generator Ci Curie CL component list CMF ca

Page 246

STP 11-25R13-SM-TG 3 - 8 PERFORM PMCS ON A DIGITAL AUDIO TAPE (DAT) MACHINE 113-575-3051 Conditions: In a tactical or garrison environment, given a D

Page 247

STP 11-25R13-SM-TG Glossary - 4 E-E electronics-to-electronics EHF extremely high frequency EIA Electronic Industries Association ENG electronic

Page 248

STP 11-25R13-SM-TG Glossary - 5 Hz hertz i.e. that is IC integrated circuit ICPM incidental carrier phase modulation ID identification IF interm

Page 249

STP 11-25R13-SM-TG Glossary - 6 LPF low pass filter LS loudspeaker LTR/ltr letter M meter ma milliampere MACOM major Army command MAG magnifica

Page 250

STP 11-25R13-SM-TG Glossary - 7 MTS multichannel television sound MV multivibrator mW milliwatt N/C not connected or no connection NA not applic

Page 251

STP 11-25R13-SM-TG Glossary - 8 PHRH primary hand receipt holder PLDC Primary Leadership Development Course PM performance measure PMCS preventi

Page 252

STP 11-25R13-SM-TG Glossary - 9 S/N signal-to-noise ratio SA semiannually (frequency code) SAP second audio program on TV subcarrier SATCOM satel

Page 253

STP 11-25R13-SM-TG Glossary - 10 STSL sustainment training skill level TB technical bulletin TBC time-base corrector TC training circular; thermoc

Page 254

STP 11-25R13-SM-TG Glossary - 11 V/S vectorscope VAC voltage/volts alternating current VBI vertical blanking interval VCO voltage controlled osc

Page 255

STP 11-25R13-SM-TG Glossary - 12 Section II Terms American Wire Gauge (AWG) Designator for a given wire based on classification according to diameter

Page 256

STP 11-25R13-SM-TG Glossary - 13 bandwidth Term used to define the frequency occupied by a signal and required for the effective transfer of informati

Page 257

STP 11-25R13-SM-TG 3 - 9 Performance Measures Results b. Connect a 1 kHz tone from the ATSG to the DAT machine. Monitor the E-E level on the VU me

Page 258

STP 11-25R13-SM-TG Glossary - 14 capacitance The ability of an object to store an electric charge. Capacitance is represented by the capital letter C

Page 259

STP 11-25R13-SM-TG Glossary - 15 color burst The portion of the composite signal comprising a few cycles, a sine wave of the chrominance subcarrier fr

Page 260

STP 11-25R13-SM-TG Glossary - 16 decibel(s) (dBu) With reference to a power of 1 microvolt. degaussing The process of driving out and exhausting the

Page 261

STP 11-25R13-SM-TG Glossary - 17 equalizing pulses Pulses are one-half the width of the horizontal sync pulses which are transmitted at twice the rate

Page 262

STP 11-25R13-SM-TG Glossary - 18 flux (1) The lines of force, which make up an electrostatic field. (2) A substance used to facilitate fusion, s

Page 263

STP 11-25R13-SM-TG Glossary - 19 hue (1) One of the three basic color attributes, hue is the color itself-red, green, blue, yellow, and so on. (2

Page 264

STP 11-25R13-SM-TG Glossary - 20 megabyte (Mb) A unit of information equal to 1,048,576 bytes (usually rounded to 1,000,000 bytes). megahertz (MHz) A

Page 265

STP 11-25R13-SM-TG Glossary - 21 PLUGE Back set of color bars. polarity A condition by which the direction of the flow of current can be determined i

Page 266

STP 11-25R13-SM-TG Glossary - 22 resolution (vertical) The amount of resolvable detail in the vertical direction in a picture. It is usually expressed

Page 267

STP 11-25R13-SM-TG Glossary - 23 A transmitter-receiver that uses many of the same components for both transmission and reception. transformer (XFMR)

Page 268

STP 11-25R13-SM-TG 3 - 10 MAINTAIN A COMPACT DISK (CD) PLAYER 113-575-3052 Conditions: In a tactical or garrison environment, given a CD player, audi

Page 269

STP 11-25R13-SM-TG References - 1 REFERENCES Required Publications Required publications are sources that users must read in order to understand or

Page 270

STP 11-25R13-SM-TG References - 2 Other Product Types A&E angle charts Azimuth and elevation (A&E) Angle Charts FCC & LCM Standards Fede

Page 271

STP 11-25R13-SM-TG References - 3 Department of Army Pamphlets DA Pam 25-30 Consolidated Index of Army Publications and Blank Forms. 1 January 1999

Page 272

STP 11-25R13-SM-TG References - 4 Technical Bulletins (continued) TB MED 523 Control of Hazards to Health from Microwave and Radio Frequency

Page 273

STP 11-25R13-SM-TG 6 AUGUST 1999 By Order of the Secretary of the Army: DENNIS J. REIMER General, United States Army

Page 274

PIN: 066889-000

Page 275

STP 11-25R13-SM-TG 3 - 11 Performance Measures Results 10. Operations check the CD player. P F a. Turn ON power. P F b. LOAD and PLAY a CD;

Page 276

STP 11-25R13-SM-TG 3 - 12 PERFORM PMCS ON A TRANSMITTER 113-575-3053 Conditions: In a tactical or garrison environment, given a transmitter, dual-tra

Page 277

STP 11-25R13-SM-TG 3 - 13 Performance Measures Results 9. Connect the transmitter output to a dummy load and close the main circuit breaker to app

Page 278

STP 11-25R13-SM-TG 3 - 14 Performance Measures Results b. Measure the video carrier frequency with an oscilloscope or multimeter at the test point

Page 279

STP 11-25R13-SM-TG 3 - 15 MAINTAIN A STILL PHOTOGRAPHY EDITING AND PROCESSING SYSTEM (SPEPS) 113-578-5030 Conditions: In a tactical or garrison envir

Page 280

STP 11-25R13-SM-TG ii 113-601-3029 CONDUCT PMCS OF A POWER GENERATOR...3-20 Subject Area 2: REPAIR 113

Page 281

STP 11-25R13-SM-TG 3 - 16 PERFORM CABLE MAINTENANCE 113-588-3022 Conditions: In a tactical or garrison environment, you are experiencing technical di

Page 282

STP 11-25R13-SM-TG 3 - 17 Evaluation Guidance: Score the soldier a GO if all steps are passed (P). Score the soldier a NO-GO if any step is failed (F

Page 283

STP 11-25R13-SM-TG 3 - 18 MAINTAIN AN ANTENNA SYSTEM 113-575-3054 Conditions: Maintain an antenna system to ensure peak reception in a tactical or ga

Page 284

STP 11-25R13-SM-TG 3 - 19 Evaluation Guidance: Score the soldier a GO if all steps are passed (P). Score the soldier a NO-GO if any step is failed (F

Page 285

STP 11-25R13-SM-TG 3 - 20 CONDUCT PMCS OF A POWER GENERATOR 113-601-3029 Conditions: In a tactical or garrison environment, given a power generator w

Page 286

STP 11-25R13-SM-TG 3 - 21 Performance Measures Results a. Turn OFF the circuit breaker. P F b. Turn the voltage rheostat fully counterclockwise

Page 287

STP 11-25R13-SM-TG 3 - 22 Subject Area 2: REPAIR REPAIR AN AUDIO TAPE RECORDER/REPRODUCER (ATR) 113-575-0046 Conditions: In a tactical or garrison e

Page 288

STP 11-25R13-SM-TG 3 - 23 Performance Steps (6) If the ATR shuts down shortly after entering any mode, check for a missing or stretched tape counte

Page 289

STP 11-25R13-SM-TG 3 - 24 Performance Steps NOTE: The bias is an ultrasonic signal impressed on the tape along with the input signal to eliminate dis

Page 290

STP 11-25R13-SM-TG 3 - 25 Performance Measures Results 1. Review DA Form 2407. P F 2. Sectionalize the trouble to a defective stage. P F

Page 291

1STP 11-25R13-SM-TG iii 113-575-1006 ESTABLISH AN AUDIO-VIDEO LOCAL AREA NETWORK (LAN)...3-91 Subject Area 10: HAND RECEIPTS 113-

Page 292

STP 11-25R13-SM-TG 3 - 26 REPAIR A DISTRIBUTION AMPLIFIER (DA) 113-575-0048 Conditions: In a tactical or garrison environment, given a distribution a

Page 293

STP 11-25R13-SM-TG 3 - 27 References Required Related DA Pam 738-750 TB 385-4 Mfg Manuals

Page 294

STP 11-25R13-SM-TG 3 - 28 REPAIR A TELEVISION RECEIVER/MONITOR 113-575-0051 Conditions: In a tactical or garrison environment, given an inoperable or

Page 295

STP 11-25R13-SM-TG 3 - 29 Performance Steps e. Common causes of blooming are a weak high voltage rectifier or too little bias on the CRT. (1) No

Page 296

STP 11-25R13-SM-TG 3 - 30 Performance Steps (1) Inject a sweep generator signal into the intermediate frequency (IF) amplifier input tuner and moni

Page 297

STP 11-25R13-SM-TG 3 - 31 Performance Steps (1) Locate the crosshatch pattern intersections in the small circles projected on the screen. The tole

Page 298

STP 11-25R13-SM-TG 3 - 32 Performance Steps (6) If the CONTRAST control setting was changed as described in step g (2), return the control to the p

Page 299

STP 11-25R13-SM-TG 3 - 33 Performance Measures Results 1. Review DA Form 2407. P F 2. Sectionalize the trouble to a defective stage. P F

Page 300

STP 11-25R13-SM-TG 3 - 34 Performance Measures Results c. Set fine-tuning (for receivers). P F d. Check AFT (for receivers). P F e. Adjust

Page 301

STP 11-25R13-SM-TG 3 - 35 REPAIR A COLOR TELEVISION (TV) CAMERA 113-575-0052 Conditions: In a tactical or garrison environment, given a TV camera sub

Page 302

STP 11-25R13-SM-TG iv APPENDIX S - REFERENCE DATA FOR NATIONAL TELEVISION SYSTEMS COMMITTEE (NTSC) TELEVISION SYSTEMS, FUNDAMENTALS OF COLOR, AND OVER

Page 303

STP 11-25R13-SM-TG 3 - 36 Performance Steps 4. Isolate the fault to a component. a. Troubleshoot power supply problems. (1) Thermal relay shut

Page 304

STP 11-25R13-SM-TG 3 - 37 Performance Measures Results 1. Review DA Form 2407. P F 2. Sectionalize the trouble to a defective stage. P F

Page 305

STP 11-25R13-SM-TG 3 - 38 REPAIR A VIDEO TAPE RECORDER/REPRODUCER (VTR) 113-575-0056 Conditions: In a tactical or garrison environment, given an inop

Page 306

STP 11-25R13-SM-TG 3 - 39 Performance Steps b. Perform functional tests on suspected circuits. c. Signal trace to find where the signal was lost

Page 307

STP 11-25R13-SM-TG 3 - 40 Performance Measures Results 7. Operations check; readjust or align as necessary. P F 8. Complete DA Form 2407. P

Page 308

STP 11-25R13-SM-TG 3 - 41 REPAIR A TELEVISION TRANSMITTER 113-575-0057 Conditions: In a tactical or garrison environment, given a TV transmitter with

Page 309

STP 11-25R13-SM-TG 3 - 42 Performance Steps (7) Check that the system output noise level (frequency modulation) between 50 Hz and 15 kHz is at leas

Page 310

STP 11-25R13-SM-TG 3 - 43 Performance Steps Table 3-1. MTS Baseband Transmission Performance Objectives Table 3-2. MTS Baseband Transmission Cr

Page 311

STP 11-25R13-SM-TG 3 - 44 Performance Steps 4. Isolate the fault to a component. a. Measure amplitude linearity with the VTSG stair-step signal.

Page 312

STP 11-25R13-SM-TG 3 - 45 Performance Measures Results 8. Turn the DA Form 2407 into the supervisor. P F Evaluation Guidance: Score the soldi

Page 313

1STP 11-25R13-SM-TG v PREFACE This publication is for skill levels (SLs) 1, 2, and 3 soldiers holding military occupational specialty (MOS) 25R and

Page 314

STP 11-25R13-SM-TG 3 - 46 REPAIR A RADIO TRANSMITTER 113-575-0058 Conditions: In a tactical or garrison environment, given an inoperable or malfuncti

Page 315

STP 11-25R13-SM-TG 3 - 47 Performance Steps ( b) From 100 Hz to 7.5 kHz, THD is 2.5 percent. ( c) From 7.5 kHz to 15 kHz, THD is 3 percent. (5

Page 316

STP 11-25R13-SM-TG 3 - 48 Performance Measures Results 8. Turn the DA Form 2407 into the supervisor. P F Evaluation Guidance: Score the soldi

Page 317 - GLOSSARY

STP 11-25R13-SM-TG 3 - 49 REPAIR A DIGITAL AUDIO TAPE (DAT) RECORDER/REPRODUCER 113-575-0059 Conditions: In a tactical or garrison environment, given

Page 318

STP 11-25R13-SM-TG 3 - 50 REPAIR AN AUDIO CONSOLE 113-575-0060 Conditions: In a tactical or garrison environment, given a DA Form 2407 requirement fo

Page 319

STP 11-25R13-SM-TG 3 - 51 Performance Steps b. If the problem appears to be in a module duplicated in the console, interchange the suspect module wi

Page 320

STP 11-25R13-SM-TG 3 - 52 Evaluation Guidance: Score the soldier a GO if all steps are passed (P). Score the soldier a NO-GO if any step is failed (

Page 321

STP 11-25R13-SM-TG 3 - 53 Subject Area 3: INSTALL/SET UP INSTALL A TELEVISION (TV) SYSTEM 113-575-1001 Conditions: In a tactical or garrison environ

Page 322

STP 11-25R13-SM-TG 3 - 54 Performance Measures Results b. Place cable designators as close to the actual point of connection as possible, but do no

Page 323

STP 11-25R13-SM-TG 3 - 55 INSTALL AN AUDIO SYSTEM 113-575-1002 Conditions: In a tactical or garrison environment, given an audio console or mixer, so

Page 325

STP 11-25R13-SM-TG 3 - 56 Performance Measures Results a. Designate all cables with heat shrink labels for new installations and self-laminating la

Page 326

STP 11-25R13-SM-TG 3 - 57 INSTALL A CLOSED-CIRCUIT TELEVISION (CCTV) SYSTEM 113-575-1003 Conditions: In a tactical or garrison environment, given cam

Page 327

STP 11-25R13-SM-TG 3 - 58 SET UP A TELEVISION RECEIVE-ONLY (TVRO) SITE 113-575-1004 Conditions: Outdoors in a tactical or garrison environment and gi

Page 328 - Section II

STP 11-25R13-SM-TG 3 - 59 Performance Steps (2) Rotate the polarizer to properly align the feed to the latitude of the installation. (3) Attach

Page 329

STP 11-25R13-SM-TG 3 - 60 Performance Steps d. Upon arriving at the lowest satellite, you may find that it is not as clear as it was when you starte

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STP 11-25R13-SM-TG 3 - 61 SET UP AN INTERNATIONAL MARITIME SATELLITE (INMARSAT) TERMINAL 113-575-2001 Conditions: In a tactical environment, set up a

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STP 11-25R13-SM-TG 3 - 62 SET UP A TRANSMITTER FOR BROADCAST OPERATION ON A TACTICAL MISSION 113-575-2002 Conditions: In a tactical environment, set

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STP 11-25R13-SM-TG 3 - 63 Evaluation Guidance: Score the soldier a GO if all steps are passed (P). Score the soldier a NO-GO if any step is failed (

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STP 11-25R13-SM-TG 3 - 64 Subject Area 4: TEST MEASUREMENTS/ALIGNMENT PERFORM STUDIO CAMERA SETUP 113-575-8020 Conditions: Performed in a visual inf

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STP 11-25R13-SM-TG 3 - 65 Performance Measures Results g. Turn OFF R GAMMA and perform performance measure 8f for B GAMMA. P F 9. Perform perf

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STP 11-25R13-SM-TG 1 - 1 CHAPTER 1 INTRODUCTION 1-1. GENERAL a. This manual identifies the individual MOS training requirements for soldiers in M

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STP 11-25R13-SM-TG 3 - 66 PERFORM AN AUDIO ALIGNMENT 113-575-8021 Conditions: In a tactical or garrison environment, given an audio console requiring

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STP 11-25R13-SM-TG 3 - 67 Evaluation Guidance: Score the soldier a GO if all steps are passed (P). Score the soldier a NO-GO if any step is failed (

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STP 11-25R13-SM-TG 3 - 68 PERFORM TELEVISION SYSTEM TIMING 113-575-8018 Conditions: In a tactical or garrison environment, given a video switcher, so

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STP 11-25R13-SM-TG 3 - 69 Performance Measures Results NOTE: An out-of-phase source displays color loss or shifting hue when switching between source

Page 340 - REFERENCES

STP 11-25R13-SM-TG 3 - 70 CONDUCT QUALITY CONTROL (QC) OF VIDEO AND AUDIO SIGNALS 113-575-5017 Conditions: In a tactical or garrison environment, giv

Page 341 - Related Publications

STP 11-25R13-SM-TG 3 - 71 Performance Measures Results b. Setup or Black level at 7.5 IRE on the WFM. P F c. Sync level at -40 IRE on the WFM.

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STP 11-25R13-SM-TG 3 - 72 INSPECT EQUIPMENT RACK GROUNDING SYSTEM 113-575-3048 Conditions: In a tactical or garrison environment, given equipment ins

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STP 11-25R13-SM-TG 3 - 73 Skill Level 2 Subject Area 5: ROBOTICS MAINTAIN TELEVISION (TV) ROBOTICS 113-575-3055 Conditions: In a tactical or garriso

Page 344 - 6 AUGUST 1999

STP 11-25R13-SM-TG 3 - 74 Performance Steps CAUTION: Be careful not to scratch the surface of the assemblies. (1) With a lint-free cloth, wipe bot

Page 345 - PIN: 066889-000

STP 11-25R13-SM-TG 3 - 75 Performance Measures Results 1. Notify TV operations supervisor prior to the preventive maintenance checks and service

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