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Emax

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Message

PSU on Emax S.E.

2005-07-26 by Jean-Marc Mélot

Hi all.
I've got a trouble with my EMax S.E.
The sampler was "power off" but anyway when, by a sunny morning, i tried 
to switch it on ... Nothing !
My first action was to unscrew the machine and check fuses and others 
"mechanic" (wire connexion, ...) possibilities. But with success ...

So i've tested the internal PSU and noticed the +5V was down.
It seems that there are 2 faulty components :
- Capacitor (22000 microFarad - 10V) : Electrolytic
- Triac (2 diodes, common cathod) but i cannot find any piece of 
information on this element ... :(

The element is screw on a little thermal dissipator with 3 pins and the 
reference is : C 1 0 P 0 3 8 (and a little code in the right up corner : 
IR4J).
I guest it's just a dual diode redressor with a common cathod (centered 
pin) but i cannot find specifications... Maybe 10A... And this element 
is in the low-voltage part of the PSU (10V ... Maybe 12V).

Any clue ?

Thanks a lot
Jean-Marc.

-- 
Jean-Marc
http://www.moderncubism.com

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