This Korg Poly-61 had issues with around 10 of the buttons where they did not generate any notes. The keyboard in the Poly-61 uses membrane buttons which have a rubber dome with a conductive plate which is pushed down on the circuit board. The conductive part tend to go bad over the years so in…
This Access Virus Rack was continuously restarting when power was connected. This is apparently a common issue with the Access Virus and is due to a capacitor in the power supply going bad. In this video I replace said capacitor. I didn’t have to do any real troubleshooting here as there were various references to…
I have a Yamaha RM1x where some of the buttons were quite bad. I decided to replace all of them while I had it open. A couple of the encoder and the volume cap was missing so I replaced these also. The soft buttons were Omten D3XJ and I bought these from a vendor on…
This Korg Poly-800 Mk1 had suddenly started to behave oddly. If it made any sounds at all they were inconsistent and random. This would indicate that the memory is corrupt due to a bad battery. As I understand it there was no internal battery mounted in all of the Kort Poly-800 Mk1, they required batteries…
It is time to build the E-Licktronic Nava, the Roland TR-909 clone! I’ve had the kit and a metal case for several years but I haven’t actually started building it. So about a month ago I ordered the remaining components from Mouser. In this video I solder and test the power supply. Nothing exceptional here;…
In this Yocto several of the distances/spacers used to screw the PCB to the front of the machine had been broken off. Some of them were loose when I got the case and some of them broke off due to stress when screwing them in. Here I glue these back using epoxy glue
Cleaning some oxide/gunk in the instrument switches of a Roland TR-808. Initial cleanup using air duster to get anything loose out of there. Then using some IPA and finishing off with some DeOxit.
I have a Benq w1060 projector (which is about 8yrs old) which had severe issues with parts of the projected screen having lighter areas. It also projected light outside of the screen area. I decided switch out the light bulb as it was near the end-of-life accouring to the number of hours it had been…
