SoundTrax PBT100

[c415rock]

Hi Everyone,

I smoked my PBT100 last night when I was programing some decoders. Looking at the photo below, can anyone tell me what the item I smoked is called? Also is this item something that I can purchase at a reputable electronics store and try to fix it myself. Before I have to buy a new one? I know I am being cheap, but I would like to try and fix it myself first.

Thanks in advance for any help and have a Merry Christmas!
Erik


Smoked Soundtrack PTB100 by WB Route, on Flickr

[tpwillie]

Eric, I would send the photo to Soundtraxx and see what they say. The burned part may or may not be available locally. There could also be more damaged parts that went at the same time. It is also easy to ruin the board trying to make repairs.

Lou

[Mark R.]

Looks like a bridge rectifier. The part number appears to be identical to the one on the adjacent corner ....

www.mrdccu.com/_Media/ptb-100-000.jpeg

Once you get the remnants cleaned off, check the circuit traces for damage as well. A burn like that can also easily burn through a circuit trace. The insulation on your black leads looks toasted as well.

Mark.

[lyled1117]

As Mark says, it is a bridge rectifier. It is a twin for the one mounted on the upper left corner of the PCB as you have it in your photo. The traces leaving the damaged one are heavier than the ones leaving the other one, implying this rectifier is in the 'higher' supply circuit between the two. While a rectifier can fail on it's own, its more likely something else failed and the rectifier was a victim of that failure. I can't say that for fact, but it's pretty likely in my opinion. Some undesirably high current flowed through a circuit that included the rectifier.

Lyle