Integrated Publishing

Army Communication Systems

Basic Circuits of Television Studio Equipment (cameras & Audio)

Describe theory and terminology of camera pickup tubes, preamplifiers, and video amplifiers.

Describe the types of protection deflection circuitry and define dc and ac power

The objectives for this subcourse support STP tasks

Table of Contents

Table of Contents (Cont)

Introduction to Basic Circuits of Television Studio Equipment (cameras & Audio)

Lesson 1. Define basic circuit theories of color video cameras

Learning Event 1: Describe the Theory of a Pickup Tube

Learning Event 2: Describe the Theory of the Preamplifier Circuit

Figure 1­3. Preamplifier K Module 1 block diagram

Basic Operation.

Learning Event 3: Describe the Theory of Video Amplifiers

Figure 1­5. Detailed dimensions of FCC standard synchronization waveform

Clamp.

Practice Exercise

Practice Exercise (cont)

Answers to Practice Exercise for Lesson 1

Lesson 2. Define Basic Definition and Power Circuits

Horizontal Deflection System

Figure 2­2. Red horizontal deflection amplifier, Sch Dia

Figure 2­3A. Red vertical deflection amplifier, sch dia

Red differential vertical linearity control

Learning Event 2: Describe the Function of DC Power Circuitry

Heater Supply Voltage.

Learning Event 3: Describe the Function of AC Power Circuitry

Practice Exercise

Practice Exercise (cont)

Answers to Practice Exercise for Lesson 2

Lesson 3. Define Audio Microphone Circuits

Figure 3­1. Basic microphone field patterns

Figure 3­2. Connection and construction of a single­button carbon microphone

Figure 3­3. Connections and construction of a double­button carbon microphone

Figure 3­5. Frequency response of early model single­and, double­button carbon microphones

Learning Event 2: Describe Uses and Operation of the Ceramic and Dynamic Microphones

Figure 3­7. Cross­sectional view of Western Electric 620B

Figure 3­8. Frequency characteristics of Western Electric dynamic (moving­coil) microphone for different angles of incidence

Learning Event 3: Describe Uses and Operation of the Cardioid Microphone

Figure 3­9. Directivity index for: (a) 11­inch line microphone, (b) cardioid microphone, (c) Electro­Voice Model 642 Cardline

Figure 3­10. Basic components of the Electro­Voice Model 642 Card line directional microphone

Figure 3­11. Polar response pattern for Electro­Voice Model 642 Cardline directional in­line microphone

Practice Exercise

Practice Exercise (cont)

Answers to Practice Exercise for Lesson 3

Glossary

Full Page Foldouts

Figure 1­1 (fo). Camera head portion of video system, block dia

Figure 1­1 (fo). Camera head portion of video system, block dia

Blank Page

Figure 1­2 (fo). Pb0 pickup tube, operate and control system, block dia

Figure 1­2 (fo). Pb0 pickup tube, operate and control system, block dia

Figure 1­4 (fo). Video amplifier B module block dia

Figure 1­4 (fo). Video amplifier B module block dia

Figure 2­1 (fo). Horizontal deflection system, block dia

Figure 2­1 (fo). Horizontal deflection system, block dia

Figure 2­3 (fo). Vertical deflection system, block dia

Figure 2­3 (fo). Vertical deflection system, block dia

Figure 2­4 (fo). Deflection failure protection system, block dia

Figure 2­4 (fo). Deflection failure protection system, block dia

Figure 2­5 (fo). Camera head DC power system, block dia

Figure 2­5 (fo). Camera head DC power system, block dia

Figure 2­5 (fo). Camera head DC power system, block dia

Figure 2­5 (fo). Camera head DC power system, block dia

Figure 2­6 (fo). AC power system, block dia

Figure 2­6 (fo). AC power system, block dia

 

Basic Circuits of Television Studio Equipment (cameras & Audio)

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