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Chuck Harris wrote:
Ed Price wrote: Designing and building a product to provide many years of use, and then capable of being repaired without access to unique components and/or exotic service equipment, is a concept so rare as to be thought a scam. Ed wb6wsn Imagine your cell phone if it was designed to be repaired, and used only common components. It would be the size of a briefcase. Do you think cell phones would be popular if they had to be briefcase sized? What about spectrum analyzers that needed to be contained in several 6 foot high rack cabinets? Is the world better or worse now that a 100MHz oscilloscope can be made the size of a paper back book? -Chuck, WA3UQV Most of the chips in cell phones are off the shelf parts, and there are places that do repair cell phones. RMS Communications in Ocala, Florida rebuilds thousands of pagers and cell phones every week. I know several techs who worked there, and they were telling me about the equipment they had available at each work station. One problem with new RF and test equipment is the firmware programmed into chips isn't readily available to program replacement parts. Another problem is the short production life for some parts. If you build a product for over two years, you either do "Lifetime purchases", or redesign boards to use the next round of parts. What is real fun is a base product with up to 100 different sets of software, depending on the customers specifications. Its hard enough to keep it straight on the factory floor, let alone trying to do it in the field. -- Michael A. Terrell Central Florida |
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