This Yamaha DX7 did not power up. I thought that it was due to one or more fuses being blown but they had not. After a while I discovered that the power cable was broken internally close to the chassis. This was probably due to the cable being sharply bent there many times over the...
In this video I will be replacing the original NiCad battery in a Roland Jupiter-4 (JP-4). This kind of battery is prone to leaking which can cause problems. In the JP-4 this is not an very big issue (at least compared to e.g. Korg Polysix where the leaking battery will cause havoc and damage traces...
This Waldorf Pulse 2 had been dropped and this had cracked the dispay. I had hard time finding the original screen (Powertip PE12864WRF-004HC1Q) as it seems to have been discontinued by the OEM. I found a post on Elektronauts where a user, “infekted”, had replaced the screen with another one successfully. Unfortunately it was not...
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...
Updating the firmware via MIDI SysEx to the latest version I could find (v1.028beta). Used “Syxex Librarian” in MacOS to do the transfer but MidiOx on Windows should work fine also.
Fitting the E-Licktronic Nava in the metal case. Had minor issues with the scale LEDs not fitting properly due to the holes being too small. I also had some issues with the back screws as the spacer was off some fractions of a millimeter. Later on I managed to bend these slightly so the screws...
So we’re getting closer to the end of this project, hopefully, here I solder the master section and I try to power it up for the first time and see if I get any sound at all from it.
Crimping all of the cables for the E-Licktronic Nava. I decided to use connectors on both ends of the cables as I am not fond of soldering cables directly to a board, so twice the amount of crimps! If you are going to do this I would recommend buying 5-10% more of the crimp terminals....
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...
