Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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Dan
 
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Default Trouble with aftermarket battery charger: Need schematic

I have one of these Universal Smart Chargers
http://www.batteryspace.com/index.as...odID=2350&HS=1
which I use to charge my 12 volt drill's nicad battery pack. I guess
these are commonly used by RC car/plane enthusiasts. I don't use the
drill all that much, so I probably haven't charged the battery more than
5 times since getting the charger about 1 year ago. Yesterday when I
went to charge the battery, the charger was completely inoperable. No
red/green indicator light, no voltage output. Opening the charger, I see
that surface mount resistors R8 & R5 are burned, so burned I am unable
to read the code on them to determine their value. Does anyone have any
idea where I might find schematic for this charger? I have tried the
place I bought the charger, all they want to do is sell me a new one
(fat chance). Perhaps someone else has one of these & wouldn't mind
opening theirs & telling me what the code on these 2 resistors is
(remove the 2 screws located under the stick on rubber feet at the top
of the label on the back, then the back comes off easily). I guess
these are commonly used by RC car/plane enthusiasts.

Thanks in advance

David
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