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Craftsman Power Tool Auto Switch Repair

Zekeman

Zekeman

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Craftsman Power Power Tool Accessory Switch Repair

Surely you DIY-ers have seen one of these slick devices which turns on, for example, a shop vac when a table saw is turned on, at least thats what I used it for unit is stopped switching. It is a Craftsman 24031 power tool accessory switch.

So pulled it apart and tested all the diodes (in circuit) and they test OK. That transistor you see is a CR02 AM 8 23. I tested it also in circuit and am getting "OL" on each combination tested. Would anyone know what may typically fail on a device like this that may have been overloaded?

Thanks!
 

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Transistor is an SCR. Connection is anode, cathode and gate. Measure the voltage from anode to cathode, it probably is 120v ac to turn on the relay. It may be a low volt scr.. don't know until you check.
 
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