Integrated Publishing

Army Communication Systems

Application of TV Test Equipment

Describe and identify theory and terminology used in the application of test meters

This subcourse supports the following MOS 26T tasks

This subcourse supports the following MOS 26T tasks (cont)

Table of Contents

Table of Contents (Cont)

Introduction to Application of TV Test Equipment

Lesson 1. Application of test Meters

Figure 1-1. Connection of an ammeter in a circuit

Figure 1-2. Connection of a voltmeter in a circuit

Figure 1-4. Typical ammeter circuit

Figure 1-5. Error in ammeter readings

Figure 1-6. Typical voltmeter circuit

Figure 1-7. Error in voltmeter readings

Figure 1-8. Typical ohmmeter circuit

Figure 1-10. A shunt ohmmeter

Learning Event 2: Determine When and How to Use Meters

Figure 1-11. Measuring current and voltage simultaneously

Learning Event 2: Determine When and How to Use Meters (Cont)

Figure 1-12. Determining value of unknown resistance of voltmeter

Learning Event 3: Determine Meter Sensitivity

Figure 1-13. Shunt resistor current range

Figure 1-15. Determining multipliers

Figure 1-16. Leading effect

Figure 1-17. Typical ohmmeter scale

Ohmmeter.

Learning Event 4: Determine Volts and Ohms Reading on the PSM-6

Figure 1-18. ME-70 PSM-6 multimeter

Learning Event 5: Determine the Value of R in Function and Range Settings

Figure 1-19. 1000-ohms/volt simplified circuit

Figure 1-21. Meter damage

Learning Event 6: Determine the Value of R for AC Voltage Measurements

Figure 1-23. Resistance measurement circuit

Figure 1-24. Resistance measurement proper circuit conditions

Figure 1-25. Ohmmeter connection

Learning Event 8: Analyze Meter Operations

Learning Event 9: Match Ohmmeter Reading to Capacitor or Inductor Conditions

Figure 1-26. Forward-bias and reverse-bias diode

Figure 1-27. False ohmmeter reading

Check the condition of a transistor

Practice Exercise

Practice Exercise (Cont)

Lesson 2. Define the theory and application of an oscilloscope

Figure 2-1. Sinewave and sawtooth voltage waveforms

Figure 2-2. Block diagram of a typical cathode-ray oscilloscope

Figure 2-3. Checking waveforms

Learning Event 2: Describe the Various Controls on an Oscilloscope

Figure 2-4. Beam intensity affected by spot velocity

Figure 2-5a, b, and c. Apparent changes in waveform with changes in vertical to horizontal proportioning

The vertical and horizontal positioning controls

Figure 2-6. Sweep frequency equals test signal frequency

The synchronizing control

Learning Event 3: Describe the Characteristics of the 453 Oscilloscope

Figure 2-8. Type 453 oscilloscope

Five modes of operation

The trigger control

The AC-GND-DC switch

Practice Exercise

Lesson 3. Describe the Application of grating generator, dot bar generator, and video sweep marker generator

Figure 3-1. Video level measuring scales

Learning Event 2: Describe the Uses of a Signal Generator

Figure 3-2. Block diagram of audio or video signal generator

Radio frequency (RF) signal generators.

Learning Event 3: Determine the Different Modes of an Electronic Counter

Figure 3-5. Electronic counter frequency measurement, block diagram

Figure 3-6. Electronic counter period measurement, block diagram

Figure 3-7. Electronic counter ratio measurement, block diagram

Figure 3-9. Electronic counter prescaling method, block diagram

Figure 3-10. Electronic counter heterodyne method, block diagram

Figure 3-11. Electronic counter transfer oscillator method, block diagram

The automatic method

Learning Event 4: Describe the Uses of a Solid State Device Tester

Figure 3-15. Oscilloscope traces of diodes

Transistors

Testing transistor

Figure 3-20. Oscilloscope traces of distortion and gain in transistors.

Figure 3-21. Grating test pattern

Figure 3-22. Grating generator, block diagram

Figure 3-23. Dot test pattern

Figure 3-24. Camera amplifier bandpass check

Figure 3-25. Oscilloscope presentation of camera bandpass

The pulse cross display

Figure 3-26. Pulse cross display

Good resolution of a picture

Figure 3-27. Resolution chart

Making a geometric distortion check

Figure 3-28. Linearity chart

Learning Event 6: Describe the Purpose and Types of Color Test Equipment

Figure 3-29. Full field color bars

Figure 3-31. Split field red

Figure 3-33a, b, and c. Picture monitor, waveform monitor, and vectorscope displays of the standard EIA test pattern signal

The color bar generator test signals and their general applications.

Figure 3-34. Block diagram of a typical vector display oscilloscope

The purpose and outstanding feature of the grating generator

Practice Exercise

Practice Exercise (Cont)

Answers to Practice Exercise

 

Application of TV Test Equipment

Privacy Statement - Press Release - Copyright Information. - Contact Us