Message
Re: roland jx-3p huhhh?
2014-12-24 by ichdarsyahhasibuan@...
i'm sorry for the late response, and i thought it was a keyboard engaged instead of panel switch engaged. The CN8 & CN9 connector disconnection is only to isolate if the problem coming from the keyboard (short circuit or ohters)
now, we need the detail symptom, all panel switch no response? all LED/lamp stay ON? any sound from the keyboard (notes) or any infos that lead us to the rigth diagnosis step.
Do you have any knowledge in electrical/electronic ? it's my pleasure to guide you, but the next step will require the medium electronic knowledge, testing with voltmeter, or even an oscilloscope to verify the test point signal.
I will be more easy if you have that knowledge since the tools is not a big constraints nowaday (there are so many DIY tools in web)
BR
ichdar