electromagnetic field therapy

[petit]

Re: electromagnetic field therapy

I wonder if your transducer or wiring in the XLR connector may be shorted out so it took out the choke which is in series with it.

I dont know which pad he was using when the machine stopped working. i dont know if it's the one i have here. he has like three or four different pads. he wasn't the one using the machine when that happened. it was his friend the one using it. i'm going to ask him this afternoon to see wich one he was using to compare it with the one he uses regularly.

[budm]

Re: electromagnetic field therapy

Yes, you should verify that so you will not take out the SCR, the new choke, or blow the main fuse of the box which I begin to suspect that was the cause of the main fuse blowing when you start working on the unit beside blowing the zener diode (that bad zener will not draw enough current to blow he main fuse, but shorted out wiring or tranducer can).

[petit]

Re: electromagnetic field therapy

that was the cause of the main fuse blowing.

About the fuse blowing i think what it was cauisng it was the or the XLR connector, because when they were blowing, i have that connector loose with no screws, i dont know if it makes sense, but i noticed that.
also at that time, was using fast acting fuses, and they were blowing instantly.
now i'm using fast acting also (i run out of slow blow) and they blow sometimes, i've using the same one for three days and it hasnt blown, but some other they were blowing instantly.

[petit]

Re: electromagnetic field therapy

Yes, you should verify that so you will not take out the SCR, the new choke, or blow the main fuse of the box .

are you talking about shorting the Choke to see if it works? or that i should check the pads?
I think if the pad is wrong the fuse would blow instantly. I own a machine too, and when i just got it i tried my pad in his machine (the one working) and the fuse blew in a couple of seconds, it looks like they have different resistance.
also the pad was not on when the fuses were blowing

[budm]

Re: electromagnetic field therapy

Well, if the pad has shorted turn (transduer is a coil) or wiring, the choke will become full load so it will be exposing about 48v on the choke. So what ever you do, check the pad and the wiring on the connector first.

[petit]

Re: electromagnetic field therapy

Well, if the pad has shorted turn (transduer is a coil) or wiring, the choke will become full load so it will be exposing about 48v on the choke. So what ever you do, check the pad and the wiring on the connector first.

there it is! it's not shorted

[budm]

Re: electromagnetic field therapy

is that the choke? Broken pin?

[petit]

Re: electromagnetic field therapy

is that the choke? Broken pin?

Yes, , as soon as i apply heat to that pin, it started moving, what's the best way to fix it?
make a hole next to it with a hot needle????

[budm]

Re: electromagnetic field therapy

Well, it is a goner.

[petit]

Re: electromagnetic field therapy

Well, it is a goner.

i'm going to try to fix it that way, if it works, fine, if not, i'll order the replacement. the replacement takes 8 weeks or more to get here, so in the meantime...

[petit]

Re: electromagnetic field therapy

Hi!
i just got an email from mouser telling me they cannot get the choke, so i think the machine is gonna stay like that with the little fix i did to the choke. it's been holding up pretty well, i've been using it for almost a couple of weeks with no problems at all.
This morning my friend call me telling me the machine he has in use is blowing fuses
he has been using it for a while with a 1A fuse slow blow, and yesterday it blew that one. i asked him, which ones he bought to replace it? he bought 1A fast acting, so i though that's why.
i asked him to come get some 1A slow blow that i have at home, that would fix the problem.
he brought the machine, we put one of those with no pad and the machine started working but as soon as i plug the pad in, the fuse blow instantly
that happened with the pad i've been using here and also the 1A fuse that i've been using with no problem for the past days.
i just ordered some 1.25A to start from there...