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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Uniden Atlantis VHF radio problem
Howdy Ray.....I don't know your radio specifically but would suggest
initially determining whether you are looking at a bad power circuit connection which fails under transmit load OR whether there's an abnormal heavy current condition occurring during transmit. Does the receiver otherwise work ok? One place you might look is at any switching contacts part of a connector for external power or for external charging. I've found many times particularly with the coaxial type power connectors that when they use a contact to disconnect the radio during charging, that this will fail under load. You didn't mention whether you experienced a heavy current condition while testing with your bench supply so I tend to think the situation is a poor connection. IF it seems that you're into a heavy current condition during transmit, you might check for a shorted stage....disconnect power at the final for example to isolate that and work backwards. Hope this helps get you started. Gord VE1AJF |
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