Repara tus cosas Comunidad Tienda

Repair and disassembly guides for electronic keyboards.

Preguntas 214 Ver todo

Opciones

Need help with fixing dead keys on Roland FP-30

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

Contesta esta pregunta Yo también tengo este problema

Es esta una buena pregunta?

Sí No
Puntuación 0

4 comentarios:

Hi,

Did you also clean the board that the rubber contacts come into contact with when pressed, you didn't say?

- de

Thanks for your response. Yes, i tried cleaning the board and rubber pads but nothing works. I am thinking the problem is something else.

I transported the piano during house move and that might have loosened up a wire?

But i am not sure how to open it up and where to even look.

Since all the keys are grouped and on the higher end of the keyboard my hypothesis is that it is some other problem.

- de

Hi, did you manage to find a solution? I have the same problem

- de

Agregar un comentario

1 Respuesta

Filtrar por:
Mas Útiles Más Reciente Más antiguo

Opciones

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)

Block Image

(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.

Fue útil esta respuesta?

Sí No
Puntuación 0

1 comentario:

Thank you for the detailed information. I don’t think I will be able to look at that level of detail. Will have to take it to the shop to get it repaired

- de

Agregar un comentario

Añadir tu respuesta

shadow hunter estará eternamente agradecido.
Ver Estadísticas:

Ultimas 24 horas: 2

Ultimos 7 días: 11

Ultimos 30 días: 47

Todo El Tiempo: 1,745