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EBM - Runs but only one speed.

Bolex EBM

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#1 Arthur Sanchez

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Posted 28 June 2018 - 06:01 PM

Hello Again My Bolex Gurus!!!

 

OK... Have a Bolex EBM  - it Runs but only one speed - and pretty fast ,,, not one of the slower speeds...

What could be causing this???

 

How many fuses are on-board/inside the camera? beside the one in the base.

It seems I recall seeing a fuse tucked under a circuit board in side the camera.

 

Well would love to hear from someone...

 

Arthur!


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#2 Tyler Purcell

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Posted 29 June 2018 - 01:56 AM

Does the speed switch fall into place when you put it to the different speeds?
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#3 Arthur Sanchez

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Posted 29 June 2018 - 08:15 AM

Does the speed switch fall into place when you put it to the different speeds?

 

 

Yes.. it clicks into position just like normal....


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#4 Tyler Purcell

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Posted 29 June 2018 - 01:21 PM

Hmm, that's really odd isn't it.

Not a fuse issue at all. I have seen Bolex's go wild when the improper power is supplied. They don't like anything over 13v or under 11v. So if your power ain't in that rage, it can cause the electronics to do funky things. That would be the most obvious first step, to check the power with a multimeter and go from there.
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#5 Arthur Sanchez

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Posted 29 June 2018 - 04:56 PM

Thanks Tyler...

 

Yep tried all that... this is the way it cam to me... I've been using my trusty 12V power pak that I know is 12VDC to test it.

BUT!... isn't there another fuse inside??? not the one in the base...

 

It seems to have blown something . . .


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#6 Arthur Sanchez

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Posted 29 June 2018 - 08:17 PM

OK... took a dive inside and found no other fuse.

 

So a simple fix would be: just swap out ALL entire internal wiring - boards and all.


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#7 Tyler Purcell

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Posted 29 June 2018 - 11:22 PM

Dang... hmm, honestly I don't know much specifically about the EBM in that department to help further. I'd think it would be something straight forward like bad capacitors or even a loose/broken wire.
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#8 Arthur Sanchez

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Posted 02 July 2018 - 08:53 AM

Tyler Thank you so much...

I found an UGLY EBM that runs great ...so my solution is to swap out the entire electrical short of the motor and see what happens.

 

some how i doubt the motor lost it's mind. BUT we'll see

 

Again Thanks Tyler!


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