Chosen Solution
Hi all, I have little more than a year old Roland FP-30 that hasn’t been used for a few months. Now I see that it has lot of dead keys. I tried opening it up, cleaning with isopropyl alcohol (91%). However, only a few keys sprang back to life. I tried again next day but still nothing worked. I also noticed that the rubber contact pads are little longer (have three holes with 2 contacts). I am having trouble finding them online. I reached out to Roland, but they asked me to go to repair shops that charge $150/hr. The repair along with uber will cost me >$300. Does anyone know where can I find the rubber contact pads for FP-30 What else can i try to fix it on my own? Cleaning again does not work and i dont think the pads are an issue since the same contact pad works elsewhere. any help is appreciated
Hi @ shadow hunter I don’t know the keyboard and I don’t know music but since all the dead keys at one end of the keyboard are they all the same note (but different key) or maybe two notes only? Electrically most keyboards are the same, i.e. Yamaha, Korg, Casio etc. That is they use two wires per note for two notes to signal the control board which sound to play. The notes are differentiated by diodes on the keyboard board Most keyboards have a ribbon cable going from the control board to the keyboard boards which are under the keys. These boards are then connected to each other, so it may be as you say simply a loose connection between the boards. Here’s an image from a Yamaha keyboard to show what I mean. It shows a layout how the 3 keyboard boards (GHL boards) connect to the control board (DM board)
(click on image to enlarge) With the wiring you will notice that the C# and G notes on the GHL-88H board (upper or right end of keyboard) share the same two wires (17 & 11 on connector) throughout the multiple on the board shown and this is multipled to the other GHL boards (-88M & -88L) under the keyboard for the other C# and G notes and then all connect back to the control board. The same with the other notes i.e. D5 & G#, D# & A etc. That is not to say that the cable pinout will be the same for your keyboard but the principle should be similar. It could also be a board problem as described and fixed in this link Korg B1 - specific notes don’t work, problem with circuitry In this keyboard three notes C, E & G# were affected and not just two but again the principle is the same I couldn’t find a service manual for your model so hopefully this is of some help if you manage to open yours up.
