Need Help with a Fisher 1280x metal detector

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I need help to locate a schematic for a fisher 1280x metal detector. The problem is that the batteries overheat to the point where the plastic holder melts at two spots, and become hot. I bought this used so I did not have any information on it. The detector does work as far as detecting metal?
Any Ideas? Thanks in advance. email [email protected]

 

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If you still have the problem...

You have high resistence somewhere between the battery connections and the first transformer or transformer circuit.

Open the box. Check to see if the battery leads connecting to the circuit board are warm like the batteries. Don't wait til the batteries and the circuitboard cools down. If you find it warm at a connection ANYWHERE in the detector, it could be that you merely have a bad connection there causing "contact resistence". If a resistor is bad it will be hot as hell!

If it's only in the batteries though and not there or in the wires, you either have bad or wrong batteries that are creating the resistence, and consequently heat. Sometimes people use 9v instead of 6 AA's (or vice versa) and that sends WAY too much (or too little) current into the circuitry, and that too causes a lot of heat because the impedence is changed.