matrigs Posted February 20, 2008 Report Posted February 20, 2008 i'm quite comfortable with my soldering skills lately and some time ago i stopped using sockets for most of my parts. with din, douts and ains i had no problems until now. - all those chips seem quite durable.the problem is that i have now completed another core and i can't get the midi in port to work. i have made the optocoupler test 1 and the led won't go off once i ground the optocoupler. might i have killed the optocoupler with the soldering iron ? is it that delicate ? or are those couplers a bit buggy and i might just got a dead one ? Quote
nILS Posted February 20, 2008 Report Posted February 20, 2008 The opto is the only component I've ever killed in a midibox, so I guess the answer is "yes". Quote
matrigs Posted February 20, 2008 Author Report Posted February 20, 2008 i guess so - changed it, works. Quote
nebula Posted February 21, 2008 Report Posted February 21, 2008 This probably varies between manufacturers. I have dwelled with a very hot iron for very long periods on surface-mount optocouplers and had no issue.On the other hand I've heard of a few MIDIboxers who blew up a 6N138. Quote
stryd_one Posted February 21, 2008 Report Posted February 21, 2008 I've heard of several instances where an opto has just died for no reason, in use, long after soldering. They just like to f*ck up ;) Quote
nILS Posted February 21, 2008 Report Posted February 21, 2008 I hereby recommend using a socket for the 6N138 :D Quote
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