Can anyone help me? I bought Suzuki gp-3 digital piano for repair. I fixed sticky keys, it plays piano voice only, none of buttons work. I discovered two connectors but couldn’t find any cables to connect them. Are they optional or something is missing?
It is possible that main board was used in several models, with different options. So, that makes it possible that those two sockets are for some option you do not have, or they might be for original testing/programming. Most likely for other options. It may have been for an add-on board also.
Since CH5-7 and CH6-7 have an "*" beside them on the silkscreen, that suggests it is an option...
It is possible that main board was used in several models, with different options. So, that makes it possible that those two sockets are for some option you do not have, or they might be for original testing/programming. Most likely for other options. It may have been for an add-on board also.
Since CH5-7 and CH6-7 have an "*" beside them on the silkscreen, that suggests it is an option...
Have you tried probing the control panel for voltage readings of any kind, while it's turned on? Any sign that the control panel pcb is receiving power from anywhere?