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#1
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Voltage Sensor Problem?
Hi,
This query refers to a Uniden Bearcat BC-235xlt scanner. I suspect that the radio has a defective voltage sensor. Charged overnight, even a new battery sets off the low battery signal after only a couple of hours. Yet, by slapping the bottom of the unit once or twice, the voltage sensor turns off, thereby giving me extra hours of battery use. So, is it worthwhile to open the radio? Am I able to adjust the voltage sensor easily at the board? Short of returning the unit to Uniden, is there anything I can do to repair the unit? TIA |
#2
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"V65MagnaFan" wrote in message . cable.rogers.com... Hi, This query refers to a Uniden Bearcat BC-235xlt scanner. I suspect that the radio has a defective voltage sensor. Charged overnight, even a new battery sets off the low battery signal after only a couple of hours. Yet, by slapping the bottom of the unit once or twice, the voltage sensor turns off, thereby giving me extra hours of battery use. So, is it worthwhile to open the radio? Am I able to adjust the voltage sensor easily at the board? Short of returning the unit to Uniden, is there anything I can do to repair the unit? TIA Sounds like an intermittent connection, if all the battery contacts are clean it would probably be inside. If you continue the "Slap" routine you may well damage something else. -- Regards ............... Rheilly Phoull |
#3
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Right. I understand that.
I was hoping that someone familiar with the unit could guide me through the circuit board, perhaps to find a pot that regulates the V sensitivity. I opened the unit today and saw no such pot. I also saw no cracks, splits, or defects. Then again, I'm not an expert. Any ideas? |
#4
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#5
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Good points, Mark. Better to go easy on the contacts at first.
"Mark" wrote in message h.net... In article , says... An easy thing to do is to clean the battery contacts with some light abrasive (fingernail file or emery cloth). I suggest extreme caution using this method, and using this method only when corrosion or foreign matter is clearly visible. The use of any sort of abrasive may result in the removal of the plating from the battery contacts. Once the plating is gone, the pot metal underneath does a Very poor job of conducting. The only fix is to put a layer of solder on the pot metal, and gently file It down to a flat surface. Cleaning terminals that don't show significant crud can be performed with an electronics cleaner or alcohol and a cotton swab or rag, or perhaps the eraser of a #2 pencil, which does have a light abrasive quality to it, but would take serious effort to remove the plating. -- Mark |
#6
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Well, guys,
It appears, after a 36hr charge, operate, recharge, operate session, that the unit is as good as new. I never would have thought that a corroded/dirty contact would have been the cause, what with years and years of good service from all sorts of radios with rechargable power supplies. The toothbrush was very, very soft, btw, Live and learn. Thanks for all the help. |
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