Yes, that was actually my first thought, but the radio's circuitry is very complex, and I don't have the technical know-how, the proper test equipment, or the patience to track the culprit down. Even if I knew exactly which capacitor it was, I'm not adept at soldering or de-soldering tiny, tightly mounted components on PC boards. I've now stored the radio away again; it's gone into retirement after 21 years of faithful service to its owner.
My apologies for updating a rather old thread, but my R75 is back in action, and has been working flawlessly for about a week now, with no more of that weird cycling between on and off. I'm really enjoying it! The Sangean ATS-909x is still in use and working fine as well, although I only use it with the whip (the long wire is on the R75), so signals are a bit weaker, while still quite readable.... Even if I knew exactly which capacitor it was, I'm not adept at soldering or de-soldering tiny, tightly mounted components on PC boards. I've now stored the radio away again; it's gone into retirement after 21 years of faithful service to its owner.
And I still have no idea what caused the problem in the first place! I have several other devices around here that went on the fritz in the past, but then seem to have repaired themselves for good without any help from me.
Interesting! I suspected that it had something to do with logic circuits. The symptom you've described is what happened here at first. Eventually I got no flash on the display at all; the radio was dead as a doornail. I put it aside for a while and used my portable instead, but after a month or so the R75 powered up just fine and was fully operational. After a few more months, however, it started that strange rapid off/on recycling I described earlier. This was at random times, often in the middle of monitoring something I really wanted to hear. Back in the storeroom it went, this time for a longer period, until I tried it again about a week ago. It's been behaving itself since then with not even a hint of a problem.
but alas, these beasts have hard troubles that need my direct action if I want to see them live again. Oh well.Ouch!
That's truly exorbitant! It's certainly cheaper here, but imagine if you paid all the shipping and service fees, only to find out that the radio worked fine once placed on the test bench.
And it does, because every so often -- maybe once every couple of months -- my Sangean ATS-909x will suddenly reboot itself during use. The screen will go blank and the radio will automatically shut off. When I turn it back on, everything's fine, and all the memories are still intact. It's only necessary to reset the clock, which is a simple matter.
