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Dead Yaesu ft-890 Help!
Steve,
Denny had some good ideas on how to get your radio fixed by local hams etc. A radio that is completely dead is easy to troubleshoot - intermittents are much trickier. Have you checked the power cable to the radio? Unplug it from the rig and use the meter and lightbulb to verify that all is OK on the connecter end that plugs in to the radio. There should be fuses in the positive and negative leads of the cable. You need to test them with a meter. Often they look OK to the eye but they are blown. If you don't have a meter try replacements of the correct amperage rating. If you decide to take the covers off here are a few tips. Disconnect the power cable. Get a container to store the screws. They often get lost and it is impossible to find exact replacements. Do not remove any boards etc. - this is best left to someone with experience and proper test equipment. Look in the vicinity of the power socket - anything burnt or scorched traces on the boards? I took a preliminary look at the circuit drawings for the FT-890. It looks like there is a relay that is activated by the power switch. When the radio was working did you hear a "click" when you turned it on?? If this relay is blown this is not an expensive repair. Steve - it can be discouraging when this happens but don't give up on your radio. Local hams are often willing to help out. There are some FT-890 owners on the Yahoo group at http://groups.yahoo.com/group/FT-890 Good luck - Roger |
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