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#21
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"Ken Weitzel" wrote in message news:EDLAd.618890$%k.17674@pd7tw2no... Fred wrote: Thanks for the good words, Jim! It's just a hobby camera and so I'm not in a hurry to get if fixed or dish out a couple hundred $$. More fun for me to diagnose it and hopefully fix the blasted thing .... and pass along what I find out. After a few plugging/unplugging, turns out there's no oxide build up on the AC receptacle. Dang it, that would've been too much to ask! Hi again... Quickly added... for safety sake. If you DO decide to do the spray cleaner suggestion, then wear glasses while you do it. You'll be puffing your shot of cleaner against a very very small enclosure, and the risk of it blowing back against your eyes is great. Particularly holding the camera up so as to spray upward into the jack. Be cautious. Your eyes are worth much more than any camera! I'd be a good deal more concerned about the camera itself, than my eyes. Really, we've been spraying contact cleaner and other aerosols for years. Surely we can do it safely. OTOH, there are gears and optics inside there. Get some of that stuff on there, and results are unpredictable at best. I'd take the damn thing apart...damn the torpedoes. Use a maginfier light, work slowly, carefully. Take pictures (with another camera of course...maybe video) of the disassembly. Digicams are difficult, but not impossible, to successfully R&R. If I can do my Coolpix--much smaller, I believe than the Oly--he should be able to dismantle enough to protect the rest of the camera from overspray when cleaning the power jack. Still, just cycling the power connector in and out may be all it needs..... jak Ken |
#22
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"Ken Weitzel" wrote in message news:EDLAd.618890$%k.17674@pd7tw2no... Fred wrote: Thanks for the good words, Jim! It's just a hobby camera and so I'm not in a hurry to get if fixed or dish out a couple hundred $$. More fun for me to diagnose it and hopefully fix the blasted thing .... and pass along what I find out. After a few plugging/unplugging, turns out there's no oxide build up on the AC receptacle. Dang it, that would've been too much to ask! Hi again... Quickly added... for safety sake. If you DO decide to do the spray cleaner suggestion, then wear glasses while you do it. You'll be puffing your shot of cleaner against a very very small enclosure, and the risk of it blowing back against your eyes is great. Particularly holding the camera up so as to spray upward into the jack. Be cautious. Your eyes are worth much more than any camera! I'd be a good deal more concerned about the camera itself, than my eyes. Really, we've been spraying contact cleaner and other aerosols for years. Surely we can do it safely. OTOH, there are gears and optics inside there. Get some of that stuff on there, and results are unpredictable at best. I'd take the damn thing apart...damn the torpedoes. Use a maginfier light, work slowly, carefully. Take pictures (with another camera of course...maybe video) of the disassembly. Digicams are difficult, but not impossible, to successfully R&R. If I can do my Coolpix--much smaller, I believe than the Oly--he should be able to dismantle enough to protect the rest of the camera from overspray when cleaning the power jack. Still, just cycling the power connector in and out may be all it needs..... jak Ken |
#23
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Thanks, Ken! You can send it to me at
Fred "Ken Weitzel" wrote in message news:JYTAd.617621$nl.482275@pd7tw3no... Fred wrote: Thanks, Ken. I sure can't see a switch down in there, but will certainly give the spray treatment a try. Hi... Send me an email if you like; and I'll send you back a small picture of the switch idea. Ken |
#24
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Another interesting development....
I took a few photos with the help of the AC adapter. Then unplugged the adapter. Turned on the camera and the zoom starting cycling out 1/2-inch, then back in 1/2-inch, back and forth.... The power switch had no effect on it. Had to open the battery door and break the connection to stop the cycling. Am I on candid camera??! Fred |
#25
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Another interesting development....
I took a few photos with the help of the AC adapter. Then unplugged the adapter. Turned on the camera and the zoom starting cycling out 1/2-inch, then back in 1/2-inch, back and forth.... The power switch had no effect on it. Had to open the battery door and break the connection to stop the cycling. Am I on candid camera??! Fred |
#26
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On Thu, 30 Dec 2004 04:10:54 GMT "Fred"
wrote: After a few plugging/unplugging, turns out there's no oxide build up on the AC receptacle. Dang it, that would've been too much to ask! Looking back, I don't think I was clear on my suggested failure mode. I was thinking that there might be an extra contact in the AC adaptor jack (an "open circuit jack") that would open and close every time you inserted the AC adaptor. It's just possible that they used this contact to provide power in the absence of the adaptor, but if the contact got resistive, then this "resistor" would be in series with your batteries, and would make them look discharged. Just inserting the AC adaptor plug a few times, or maybe just once, would have exercised this contact and broken thru the insulating oxide layer, fixing your problem. I don't know how realistic it is, but at least it fits your observations. If I'm right, you don't have to do anything else for a few more years. Then, when you have the problem again, just insert the AC adaptor plug in the camera jack a few times and you should get a fresh start. I wouldn't do ANYTHING else. - ----------------------------------------------- Jim Adney Madison, WI 53711 USA ----------------------------------------------- |
#27
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On Thu, 30 Dec 2004 04:10:54 GMT "Fred"
wrote: After a few plugging/unplugging, turns out there's no oxide build up on the AC receptacle. Dang it, that would've been too much to ask! Looking back, I don't think I was clear on my suggested failure mode. I was thinking that there might be an extra contact in the AC adaptor jack (an "open circuit jack") that would open and close every time you inserted the AC adaptor. It's just possible that they used this contact to provide power in the absence of the adaptor, but if the contact got resistive, then this "resistor" would be in series with your batteries, and would make them look discharged. Just inserting the AC adaptor plug a few times, or maybe just once, would have exercised this contact and broken thru the insulating oxide layer, fixing your problem. I don't know how realistic it is, but at least it fits your observations. If I'm right, you don't have to do anything else for a few more years. Then, when you have the problem again, just insert the AC adaptor plug in the camera jack a few times and you should get a fresh start. I wouldn't do ANYTHING else. - ----------------------------------------------- Jim Adney Madison, WI 53711 USA ----------------------------------------------- |
#28
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Thanks, Jim. I did try this - several times, and have since plugged the
adapter in and out many times taking photos using it. Still the same problem with the camera not recognizing good batteries thought. Thanks - appreciate the advice. Fred "Jim Adney" wrote in message ... On Thu, 30 Dec 2004 04:10:54 GMT "Fred" wrote: After a few plugging/unplugging, turns out there's no oxide build up on the AC receptacle. Dang it, that would've been too much to ask! Looking back, I don't think I was clear on my suggested failure mode. I was thinking that there might be an extra contact in the AC adaptor jack (an "open circuit jack") that would open and close every time you inserted the AC adaptor. It's just possible that they used this contact to provide power in the absence of the adaptor, but if the contact got resistive, then this "resistor" would be in series with your batteries, and would make them look discharged. Just inserting the AC adaptor plug a few times, or maybe just once, would have exercised this contact and broken thru the insulating oxide layer, fixing your problem. I don't know how realistic it is, but at least it fits your observations. If I'm right, you don't have to do anything else for a few more years. Then, when you have the problem again, just insert the AC adaptor plug in the camera jack a few times and you should get a fresh start. I wouldn't do ANYTHING else. - ----------------------------------------------- Jim Adney Madison, WI 53711 USA ----------------------------------------------- |
#29
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On Sat, 01 Jan 2005 05:46:30 GMT "Fred"
wrote: Thanks, Jim. I did try this - several times, and have since plugged the adapter in and out many times taking photos using it. Still the same problem with the camera not recognizing good batteries thought. Thanks - appreciate the advice. Now I'm confused. Earlier you wrote: Then I removed the AC adapter and used it with the same batteries only again and it worked every time, zooms in/out, etc. just fine and no battery bad message. I took this to mean that the problem had gone away. - ----------------------------------------------- Jim Adney Madison, WI 53711 USA ----------------------------------------------- |
#30
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On Fri, 31 Dec 2004 08:56:17 GMT, "Fred"
wrote: Another interesting development.... I took a few photos with the help of the AC adapter. Then unplugged the adapter. Turned on the camera and the zoom starting cycling out 1/2-inch, then back in 1/2-inch, back and forth.... The power switch had no effect on it. Had to open the battery door and break the connection to stop the cycling. Am I on candid camera??! Fred Sounds like your voltage regulator circuit has a bad component such as a leaky capacitor or defective zener diode. PJ |
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