Futureman Posted March 7, 2009 Report Share Posted March 7, 2009 I'm in the process of fixing up my semi working Delta Labs DL-4 delay, and making good progress.. I've fixed one fault (dying Tantalum)and pretty much diagnosed another fault (Faulty 4011 CMOS).My question is, with one of the PCB's, It's a total arse to get out etc.. too many jumpers etc.This raised a small thought, if I cut out the old IC, and removed the remaining pins etc, and wanted to solder in a IC mount, do you think it would be possible to do it all with no access to the underside of the PCB?I was thinking about getting one of those long wire wrap IC holders, cutting the legs a bit, and solder it so it's base is a fraction above the PCB, and use the solder to 'wick' to the underside of the PCB.Has anyone done this before? Any thoughts?PS - If this is in the wrong category, please move/remove.RegardsMike Quote Link to comment Share on other sites More sharing options...
nebula Posted March 7, 2009 Report Share Posted March 7, 2009 If the board has plated through-holes (as is generally the case with double-sided boards), then you should be able to solder from either side of the board.If it is a single sided board with plain ol' drilled holes, you will be able to heat and remove stuff, but you will never be able to reliably solder a replacement component in its place unless you can heat the traces up with your iron.(BTW: should probably be "miscellaneous", since this doesn't pertain to a MIDIbox project) Quote Link to comment Share on other sites More sharing options...
Wilba Posted March 7, 2009 Report Share Posted March 7, 2009 Also consider those IC sockets with machined pins.They would sit above the PCB a bit more than an IC, giving more room to do a proper solder joint on the top side. Quote Link to comment Share on other sites More sharing options...
Futureman Posted March 7, 2009 Author Report Share Posted March 7, 2009 Yes... machined sockets.. good call.I've never really tried to repair digital stuff until today..so much progress while nursing a hangover... pretty much fixed the delay which I'm stoked about.. I then attacked an old LinnDrum that I had been given for free (it was busted) and it looks like I now know whats wrong with that sucker too (The Crystal oscillator / clock circuit is toast).. aah.. progress.Cheers for your input.RegardsMike Quote Link to comment Share on other sites More sharing options...
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