Re: [CAD_CAM_EDM_DRO] W.E.T.Re: BOSS stepper driver transistor

>Hi Scott and All:
> From my experience repairing a Bridgeport CNC (I believe it was
>a model II) The former owner had traded it in because the Z axis had
>failed a couple of times and he was tired of the expensive service
>call to fix it. Upon checking with the Bridgeport service department
>and talking with an old timer he told me where look and locate the
>bad transistor. Once I found it and pulled the board, it cost me
>more to buy a large soldering gun, big enough to do the job,
>then it did for the one transistor that went bad. After that we keep
>a couple spare transistor around as it would always go out right when
>we needed to get parts done. So I would recommend buying a couple
>extra and having them on hand. MAY THE CHIPS SOON FLY
> GOD'S BLESSINGS
> Bill
>
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> hi guys the transistor you need is a 2N6547 i used to run 3 bridgeports, 2 bos 5's annd a bos 6 and the Zaxis blowing trannys is a very common problem but its a quick and easy fix
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