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Published byOscar Gallagher Modified over 9 years ago
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What is a Television? Tele – Distance Vision - Image
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Methods used in servicing Televisions Block Diagram Pictorial Diagram Schematic Diagram Troubleshooting Flowchart Instructional
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Tools needed in servicing Televisions Pliers Knife Screwdrivers Alignment screw drivers Flashlight, tuner cleaner Jumper wires Cleaning cloth
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Continuation… Soldering iron Digital multi-tester Cutter pliers Mirrors Logic probe
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Instruments Color bar generator Degaussing coil Multi-tester Oscilloscope Pulsers and probes RF signal generator Sweep generator
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Continuation… In-circuit transistor checker Color bar generator Tube tester
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Replacement Components Set of resistors Set of capacitors Set of transistors Set of ICs Substitution yoke/flyback
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Methods used in Isolating Problems Cause-and-effect reasoning – the most useful method Signal tracing – fault-finding technique Signal substitution – using instrument in detecting problems
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