Hi,
I gave my rotovibe to a friend of mine that, unfortunately, is a fuc#er. I don't know what the hell he did but the supply circuit is fried.
It still works with battery only but I'd like to restore it

here there's a picture of the disaster:

http://xoomer.virgilio.it/bstoppi/brotovibe.jpg


Does anybody could tell me the value of the components pointed with the arrows (there was also an unknown yellow cap completely burnt at the side of the tranny - burnt too -).
Thank you so much for your help, excuse me for the poor quality of the picture, I'm not able to get anything better.

Access forbidden: I couldn't get to your image, maybe check its can be publicly acessed

Quote from: SnooP_WigglesAccess forbidden: I couldn't get to your image, maybe check its can be publicly acessed

Copy paste it again to the same browserwindow or go through http://xoomer.virgilio.it/bstoppi and it should work (at least for me it does).

Hmmm... I'd check that all the circuitboard traces are intact and not burned off or anything and then replace the burned components if the values can be read. If not, then schematic or some other info about the burnt parts would be needed.

Does the DC jack have a mechanical break contact, or is there some circuitry involved? (trace the + battery connection towards the DC jack to find out).  Probably the latter if something is fried but, unfortunately, that picture is too blurred to make out anything.

No, the traces and the plug are ok, the problem is I can't read the values of the components indicated because... they're melted (like the cap) or blacked!
if anyone that owns a rotovibe could please tell me what kind of values are there I'll be very grateful,
thanks
Marcello

I have a rotovibe, but it has a totally different PCB from the one in that picture.  I have two transistors near the jack input, a 3906 and another that is labeled MPS A18 552.  There are two caps above the jack in your picture, one is marked 704, the other is marked 9709.  There are two resistors near the jack that MIGHT be relevant.  There is a 330k just below the jack (where your transistor is) and a 120 ohm outside of my two transistors.

Something you might want to try is to remove all of the burnt components (note where they went first) and look at the bottom side of them.  You might get lucky and be able to read the values off of the other side.

Ry

I concure with Ry. I looked at my board and it does not match up to your picture. The description Ry gave describes my board. This might be a different revision board from most of the other Rotovibes out there. Check for a version marking somewhere on the board. Is this a newer or older Rotovibe ?

Andrew

I've bought it 2nd hand some years ago, I don't know how old it is but  it's labelled Rev.B on the copper side.
Anyway, Thank you so much for your help.
By the way, does anybody know what the 20K trimmer do? Does it regulate the leds light?
Marcello

Mine is like the other two described.  Spose you could wire a jack to the battery leads and use it that way?

Maybe it's the easiest solution.
Still I'd like to know what the heck the removed two legged melted stuff at the left of the tranny was... strange shape for a cap