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#1
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Anyone out there that can help me troubleshoot this?
I have a Sony CRF-5090 Earth Orbiter. The thing sounds fantastic, and on the
bands that work (FM/AIR/SW3,4,5) it's very VERY sensitive and has better than average selectivity. The problem is, it doesn't work on LW/MW/SW1. I've tracked it down to the oscillator being dead on those bands. What I can't seem to track down is why. I've got the service manual, and the schematic is no problem to read, but the actual switches not so much. At least one of them seems not to connect to anything at all. Has anyone ever had this sort of problem with this radio and can help me figure out what's going on? TIA |
#2
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Anyone out there that can help me troubleshoot this?
On 3/24/2012 9:27 AM, Brenda Ann wrote:
I have a Sony CRF-5090 Earth Orbiter. The thing sounds fantastic, and on the bands that work (FM/AIR/SW3,4,5) it's very VERY sensitive and has better than average selectivity. The problem is, it doesn't work on LW/MW/SW1. I've tracked it down to the oscillator being dead on those bands. What I can't seem to track down is why. I've got the service manual, and the schematic is no problem to read, but the actual switches not so much. At least one of them seems not to connect to anything at all. Has anyone ever had this sort of problem with this radio and can help me figure out what's going on? TIA I have no experience with that set, but about 60 per cent. of the time, a capacitor is at fault in older radios that have stopped working. It shouldn't be difficult to replace every capacitor that is only in the oscillator circuit on those bands. Another thing to try is to check continuity of all visible band switch contacts, even if you don't know how they're wired. Best of luck, Kevin, WB4AIO. -- http://nationalvanguard.org/ http://kevinalfredstrom.com/ |
#3
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Anyone out there that can help me troubleshoot this?
That sounds like a toughie. I had an RCA CRT tee vee set I bought new in October nineteen nienty nine. A few years ago whenever I tried to turn it on, it would make a bump noise but no picture, no nothing. When I moved that tee vee set I saw some stuff under there as though some gooey stuff had leaked out. Maybe some capacitors had leaked? I gave that tee vee set to the Goodwill store.
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#4
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Anyone out there that can help me troubleshoot this?
Google, or wuteber,,,,, Sony CRF fifty nine (mah keyboard is screwed up right now) Earth Orbiter Radio. Ah whole heap of stuff there.
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