Reply to "Reverse board won't go forward, bad transistor or some thing else?"

NortonOGR Forum Member

I test opto couplers in the circuit. Can you read a part number? With that you or one of us can determine which pin is the output. With the engine on the track or the board powered you can determine if the outputs toggle when you hit the direction button. This will tell you if the problem is the optos or circuitry before the optos or if the problem is after the optos like the power devices.

Pete

1/5/128:58 AM

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