y and created an open circuit in the > process, than it's possible no other componen
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Its possible, but not likely, = especially if its=20 not a new unit, which would be more likely to have a defective=20 component.&nbsp; Something caused a current overload through it to = burn it=20 up.&nbsp; But apparently not a direct short which would have blown = the fuse=20 as well.&nbsp; I've seen many leaky filter caps do this - these are = the=20 large caps that filter the ripple voltage or small ac component off = the=20 DC.&nbsp; A blown voltage regulator is another likely suspect, as = far as the=20 PS itself.&nbsp; Can the PS run by itself w/o being connected to the = M80?&nbsp;&nbsp; &nbsp; ich Lamanna" &lt;<A=20 = href=3D"mailto:richard.lamanna@verizon.net">richard.lamanna@verizon.net</= A>&gt;
;... Hello, Easter&nbsp;greetings by the way. = Hey the=20 other day I smelled smoke and heard&nbsp;a crinkling = sound&nbsp;in the=20 back of my preamp rack and later discovered the cause was my = Presonus=20 M80's power supply which is now deep fried. Well I took the = supply=20 apart and found that this dark grey thing on the cuircut = board, I=20 think it's a diode -&gt;l, melted right off of the board. Any = one know=20 what this is? I can't get a picture just yet up on the net but = I'll=20 try and describe it. &nbsp; It's appx. 3/4" by 1/2" by 1/4" thick, has = 4 pins on=20 the bottom which&nbsp;solder to the cuicut board, dark grey = colored=20 and is coded: &nbsp; --&gt;| RS*202L RU&nbsp; A 90 + AC - &nbsp; Anyone of you electronics = wizards&nbsp;know where=20 the heck I can find one of these? &nbsp; You guys are g