punkdISCO Posted March 16, 2014 Report Share Posted March 16, 2014 (edited) Hi all I decided to replace all my encoders as 5 or so were playing up (should have just replaced the duff ones!). So, in 2 or 3 places I seem to have lifted the red tracking on the topside of the PCB: Silly question but: does this matter? Looking on the underside, I can see the tracking is all fine and this seems to be the tracking that goes off to ribbon connecters etc. What is the red tracking on the topside of the PCB? Do I need to repair it? thanks for any replies. Paul UPDATE: the red topside tracking looks like it is Ground which is run to each of the 3 encoder pins. So I guess the question is: will the encoders till work if one of the pin ground is missing but the others are intack? Edited March 16, 2014 by punkdISCO Quote Link to comment Share on other sites More sharing options...
ilmenator Posted March 16, 2014 Report Share Posted March 16, 2014 If it's there it's usually there for a reason... :whistle: so yes, it does matter, and yes, you will have to repair it if you want your unit to function properly. Quote Link to comment Share on other sites More sharing options...
Hawkeye Posted March 16, 2014 Report Share Posted March 16, 2014 (edited) +1 - you´ll need to fix these... To properly remove malfunctioning encoders, it is recommended to cut all three (or more) pins with wire cutters on the top side of the PCB, then heat the backside pins one by one with the soldering iron and use a desoldering pump from the frontside to suck through the pin and solder remains. Many greets and good luck! Peter Edited March 16, 2014 by Hawkeye Quote Link to comment Share on other sites More sharing options...
punkdISCO Posted March 17, 2014 Author Report Share Posted March 17, 2014 To properly remove malfunctioning encoders, it is recommended to cut all three (or more) pins with wire cutters on the top side of the PCB, then heat the backside pins one by one with the soldering iron and use a desoldering pump from the frontside to suck through the pin and solder remains. Hey Peter Thanks for those instructions. Wish I had known the correct process before I removed the encoders L Hey ho, we live and learn.. Ta, Paul Quote Link to comment Share on other sites More sharing options...
punkdISCO Posted March 17, 2014 Author Report Share Posted March 17, 2014 Thanks for the replies. What I still don’t understand is: Some of the encoders only appear to have 2 pins doing anything (looking at the tracks on the underside). Some encoders use all 3 pins All the encoders seem to have a earthing track (looking on the topside) but, why do ALL the pins need to be earthed? Would it have been okay to just earth the encoder once, maybe via the body? Im asking this question as it helps me understand why I need to fix the 3 or so earthing track breaks Ive made. My other approach is to just try it and see.. Im not very good at this stuff so appologies if these are dumb questions.. Thanks, Paul Quote Link to comment Share on other sites More sharing options...
punkdISCO Posted March 24, 2014 Author Report Share Posted March 24, 2014 HI all - I repaired the tracking at weekend. It was pretty easy. I also installed all the new knobs so now have a fully working mb6582! It never ceases to amaze me how good this thing sounds. I have lots of high end synths (PEK / SunSyn / JP4 / Korg 800dv / etc etc) yet everything I turn on the MB, it just runs a mockery over my other stuff... Definitely my desert island synth... Paul Quote Link to comment Share on other sites More sharing options...
Shuriken Posted March 24, 2014 Report Share Posted March 24, 2014 As a general rule of thumb; when a component is broken, it's better to use the wire cutter method as Peter described. It's much easier that way to get components out without damaging the pcb. Quote Link to comment Share on other sites More sharing options...
punkdISCO Posted March 24, 2014 Author Report Share Posted March 24, 2014 Hi Shuriken - yeah, I wont be doing it my way again!! Its the first time I have removed components so it was a learning curve for me. Thanks again for all the pointers and help. Paul Quote Link to comment Share on other sites More sharing options...
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