Subject:
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Re: Charge polarity on each board opposite?
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Wed, 28 Aug 1996 20:09:02 GMT
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Original-From:
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Fred G. Martin <fredm@media.mit.ANTISPAMedu>
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Viewed:
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1539 times
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the hb has a diode to protect against reverse polarity at the coax
jack on board.
maybe you just blew your config register. the ic manual for the hb
has instructions on using the downloaders to reburn the config.
fred
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Message has 1 Reply:
 | | Re: Charge polarity on each board opposite?
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| (...) Do those two boards (Hboard and I/F) have differing requirements of the transformer charge plugs, as the schematics indicate? I have so many wall-warts around, DC and AC, but they all have the return line on the outside. Perhaps it doesn't (...) (28 years ago, 29-Aug-96, to lugnet.robotics.handyboard)
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Message is in Reply To:
| | Charge polarity on each board opposite?
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| Well, I finally broke it. My Handyboard has been a true workhorse, so forgiving of my newbie errors, until now. Mine has a 9.6V Nicad in the case. When I tried to fire it up last, the battery was low so I plugged in the 12V DC supply line from the (...) (28 years ago, 28-Aug-96, to lugnet.robotics.handyboard)
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