…you may want to look away now.
i finally opened up my Rogue and discovered the black stuff was morphing into some gunk. i Pulled out what i could and scraped with some tweasers for an hour and this is what remained (i was in too much shock to take any pictures of the initial gunk):
This is inside the front panel:
The sliders don’t look too bad externally (this is after an hours-worth of scraping), but i hate to think what’s fallen inside:
Also i found that there was some white gunk on the PSU board. Has anyone any info on this? Is this normal? i don’t hink it’s a leak, just the fixing stuff gone gooey.
This is my Rogue under my OSCar and above my bubble-wrapped Jupiter-4. The Rogue still needs some work - i have alcohol and air blasters at the ready for the final clean up.
Cool link - is that auction happening all the time, or is it a one-off? i don’t want to get them yet in case i’m fine, although £60 isn’t too bad on the exchange rate.
The “white gunk” between the capacitors is just silicone rubber used to keep them in place. Heavy components like these often get something like a wire tie or silicone rubber to keep them from breaking off the board.
I always replace old electrolytic caps, so if it was my synth, I’d replace both of those caps and add some fresh silicone rubber.
The black gunk from the slider’s dust covers can be removed with strong solvents like acetone or MEK.
I used to use a citrus solvent sometimes too.
But nothing gets rid of it completely and it can damage the internals of the pots and switches.
I’d recommend buying a full set of switches and sliders from Technology Transplant. It’s much easier and takes less time to replace the various controls than it is to try cleaning them well.
You’ll end up with nice smooth sliders and shiny switch bats.
I tried nail polish remover (it’s usually acetone based) rubbing alcoho and goo gone. the goo gone worked well, but it made teh goop more goopy and runny. I got the best results with alcohol, utility razors and about 200 q-tips.
Sure you could simply replace all the switches and sliders, but you would still have gunk on your chips, caps, resistors etc. I cleaned it off of everything! The bell tone actually started working afterwards. I guess somehow the gunk was shorting it out? Who knows.
I also yanked the RCA jack board out and put a 1/4 jack in there. I have heard elsewhere that you should put a resistor on the output to ‘protect’ the output amp. but it sounds so damn good compared to how it sounded through the RCA jack I dont want to add anything!
