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Servicing satellite TV equipment /
This is the definitive practical guide to fault-finding, troubleshooting and servicing satellite television equipment, both indoors and outdoors. It will take you through all areas of satellite television system servicing from the simplest fixed dish to fully motorised systems. From PAL to Mac to MP...
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Oxford ; Boston :
Newnes,
1998.
|
| Temas: | |
| Acceso en línea: | Texto completo (Requiere registro previo con correo institucional) |
Tabla de Contenidos:
- Front Cover; Servicing Satellite TV Equipment; Copyright Page; Table of Contents; PREFACE; ACKNOWLEDGEMENTS; Chapter 1. INTRODUCTION; Service necessities; Workshop conditions; Field operations; The fault; The repair; Intermittent faults; Adjustments; Repair estimates; Equipment lifespan; Service Information; Spare-part ordering; Chapter 2. TOOLS AND TEST EQUIPMENT; Hand tools; Ladders; Signal strength meter; Field monitor; Spectrum analyser; Test equipment for digital signals; Multimeter; Oscilloscope; Signal generators; Bench power supply; Frequency counter; Portable appliance tester.
- Infra-red output detectorInfra-red handset tester; Chapter 3. DISHES AND FEEDS; The dish reflector; Reflector constructions; Non-metallic dishes; When is it necessary to replace a dish?; Painting dishes; Dish antennae configurations; Dish alignment; Weak signals; Booms and feed mounts; Cables; Chapter 4. Depolarisers and low noise blocks; Depolarisers; Types of depolariser; Voltage switching (Marconi); The low noise block (LNB); DiSEqC (Digital Satellite Equipment Control); Chapter 5. Distribution systems; Signal distribution rnethods; Safety; Depolarisation control; I.f. distribution.
- Powering systemsChapter 6. Actuators and positioners; The actuator arrn; Actuator feedback; Positioners; Chapter 7. Tuners and tuning systems; The tuner; Chapter 8. Video processing circuits; Demodulators; Video de-emphasis, amplifiers and filters; Teletext; Chapter 9. Receiver audio circuits; EUTELSAT; Aadr DIGITAL RADIO; Digital audio via satellite; Typical symptoms; The audio path; The modern approach to audio processing; Audio switching; Muting; Dolby Surround and Pro-Logic; Audio power arnplifiers; Interfacing with the outside world; Chapter 10. Power supply circuits; Safety.
- Mains filteringFuse types; Linear PSUs; Rectifiers; Stnoothing/reservoir capacitors; Split supplies; Transistor regulators; IC regulators; D.c.-d.c. converters; Protection Zener diodes; Power indicators; Chapter 11. System control circuits; Fault finding system control circuits; Input problems; Output problems; Data buses; Memory circuits; Displays; Electronic variable resistors (EVRs); Chapter 12. R.f. modulators and amplifiers; What?; Conventional modulators/amplifiers; Voltage supplies; Signal inputs; Broadband modulators; Setting r.f. outputs; Internal modulator failures; R.f. amplifiers.
- Dealing with interference pick-upR.f. amplifier problems; Amplifier/modulator problems; Fault finding in general; Chapter 13. Decoders and descramblers; Security; Decoder interfacing; Videocrypt; Security process; Pirate Videocrypt hacks; Videocrypt faults; Lock-ups; Vision faults; Random operation of Videocrypt decoder; Radiation; D2MAC decoders; Chapter 14. Digital television and MPEG-2; Principles of digital video; Digital Television; Source Image coding; Application of redundancy; Transrnission modulation methods; Receivers; Data and communications; Servicing.