By Homer L. Davidson
ISBN-10: 0071421815
ISBN-13: 9780071421812
During this up-to-date version of his best-selling consultant, Homer Davidson, grasp of buyer electronics, offers wizardly hands-on recommendation on troubleshooting and repairing quite a lot of digital units -- with out the good thing about schematic diagrams. * Covers automobile stereos, cassette gamers, stereo audio circuits, radios, VCRs, TVs, speaker structures, CD-players, and extra * NEW assurance of DVD gamers and handheld remote control devices * greater than four hundred specified drawings and photographs to demonstrate the best approach to find, attempt, and service faulty parts content material Servicing equipment with out a Schematic how one can find, try, and service Troubleshooting and Repairing Audio Amps, huge and Small Servicing automobile Receivers Servicing Cassette avid gamers Troubleshooting CD avid gamers Troubleshooting the television Chassis Servicing energy provides Servicing Stereo Sound Circuits Troubleshooting AM/FM/MPX levels VCR and TV/VCR blend maintenance Repairing handheld remote control devices DVD participant upkeep
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Extra resources for Troubleshooting & Repairing Consumer Electronics Without a Schematic
Sample text
For instance, part number AN5435 lists as a color deflection signal processor IC in the RCA series replacement manual. The universal replacement is an SK9299 IC with pin 15 as the supply voltage pin (Vcc). The horizontal drive output is pin 6, and the vertical output is pin 9. Also, the SK9299 has a total of 18 pins. Double-check with the IC mounted on the chassis for the correct number of pins, the right section, and the correct universal replacement. Let’s say you have a Panasonic portable TV that comes in without a model number.
Some DMMs also can check frequency, inductance, and capacity (Fig. 2-1). 31 32 How to locate, test, and repair 2-1 Taking critical resistance measurements with a DMM in a TV chassis. Correct electronic test equipment Besides the DMM, the oscilloscope is one of the most used instruments to test for correct waveforms on the service bench. You can easily locate a defective component with critical waveforms in many different consumer electronics products. A dual-trace oscilloscope is needed with at least a 35- or 40-MHz frequency bandwidth (higher in some cases).
2-8). Today, most TV chassis use an IC output component on a heat sink for the vertical output circuits. The TV chassis can be broken up into the horizontal, vertical, tuner, 40 How to locate, test, and repair Yoke CRT socket Horiz trans Ac input Flyback 2-8 Try to locate the various components on the TV chassis. intermediate frequency (IF) and video, audio, and CRT sections and high- and lowvoltage power supplies. Remember that within a TV chassis, sometimes the horizontal section must operate before any voltages are fed to the secondary windings of the flyback to the other circuits.
Troubleshooting & Repairing Consumer Electronics Without a Schematic by Homer L. Davidson
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