Residential Audio & Video Systems Copyright © 2005 Heathkit Company, Inc. All Rights Reserved Presentation 1 – Introduction

2 Objectives At the end of this presentation, you will be able to:

3 Explain the difference between dedicated and distributed audio/video systems. List several advantages of distributed audio/video systems over dedicated ones. Describe the various components found in audio and video systems. Discuss several ways of distributing audio to multiple rooms. Explain the basic operation and characteristics of L-Pad and autotransformer volume controls. Explain the purpose and basic operation of a speaker selector.

4 Audio/Video Trends Analog to Digital Terrestrial to Satellite Procure at retail outlet to procure via download. Real time to time shifted. Dedicated to Distributed

5 Dedicated Versus Distributed Dedicated – Confined to a single room. Distributed – Interconnected components spread over multiple rooms.

6 Advantages of Distributed Audio/Video Systems Lower cost than placing comparable equipment in several rooms. Greater availability of multiple programming sources. Easily updated as new technologies emerge. Increases the livability of the home. May even increase the resale value of the home.

7 Distributed Residential Audio System Audio Source Equipment Audio Amplifier Speaker System Auxiliary Equipment Interconnecting Wiring

8 Audio Source Equipment AM/FM Tuner Satellite Radio Tuner CD/DVD Player Record and Tape Players MP3 Player Personal Computer Microphone

9 PHONES FM 99.9 MHz Stereo ▲TUNING▼ ◄PRESET► MASTER VOLUME ON/OFF SETUP ENTER RETURN VIDEO1VIDEO2CDTAPETUNER MEMORYFM MODE ◄ BALANCE ► ◄ BASS ► ◄ TREBLE ► VIDEO1VIDEO2 CDTAPE TUNER

10 ANTENNA AM FM ! WARNING U L R L + - SPEAKERS + - CD VIDEO2 VIDEO1 OUT IN TAPE OUT IN

11 ANTENNA AM FM ! WARNING R L + - SPEAKERS + - CD VIDEO2 VIDEO1 OUT IN TAPE OUT IN RIGHTLEFT

12 Speaker Selector (Front) PROTECT Speaker Selection System

13 Speaker Selector (Back) SPEAKER 1 SPEAKER 2 SPEAKER 3SPEAKER 4 AMPLIFIER R L R L R L R L R L

14 SPEAKER 1 SPEAKER 2 SPEAKER 3SPEAKER 4 AMPLIFIER R L R L R L R L R L R L + - SPEAKERS + - ROOM 1ROOM 2 ROOM 3 ROOM 4 Receiver/ Amplifier Speaker Selector

15

16 ANTENNA AM FM ! WARNING R L + - SPEAKERS + - R L A B CD VIDEO2 VIDEO1 OUT IN TAPE OUT IN RIGHTLEFT

17 ANTENNA AM FM ! WARNING R L + - SPEAKERS + - R L A B CD VIDEO2 VIDEO1 OUT IN TAPE OUT IN ROOM 1 ROOM 2

18 ANTENNA AM FM ! WARNING R L + - SPEAKERS + - R L A B CD VIDEO2 VIDEO1 OUT IN TAPE OUT IN ROOM 1 ROOM 2 SPEAKER 1 SPEAKER 2 SPEAKER 3SPEAKER 4 AMPLIFIER RL RL RL RL RL ROOM 3ROOM 4ROOM 5 Speaker Selector

19 RL Room 2 RL Room 5 RL Room 4 RL Room 3

20 Right Left Volume Controls X1 X3 X2 X4 Right Left L-PAD Autotransformer VOLUME

21 The L-Pad Volume Control R1 R2 Right 8Ω8Ω 8Ω8Ω 4Ω4Ω

22 Maximum Volume R1 R2 Right 8Ω8Ω 100Ω 0Ω0Ω

23 Reducing the Volume R1 R2 Right 8Ω8Ω 8Ω8Ω 4Ω4Ω

24 Minimum Volume R1 R2 Right 8Ω8Ω 0Ω0Ω 8Ω8Ω

25 Autotransformer Volume Control 8Ω8Ω Right

26 Maximum Volume 8Ω8Ω Right

27 Impedance Matching (IM) Volume Control 8Ω8Ω Right X1 X2 X4 X8

28 X1 X3 X2 X4 Amplifier 8Ω8Ω

29 X1 X4 X2 X8 Amplifier 8Ω8Ω X1 X4 X2 X8 8Ω8Ω

30 Receiver/Amplifier Audio Distribution Amplifier Satellite Radio Distribution Amplifier To Speakers CD Tape AM Ant. FM Ant.

Residential Audio & Video Systems Copyright © 2005 Heathkit Company, Inc. All Rights Reserved End