Papa Posted May 22, 2021 Share Posted May 22, 2021 My PX-150 has been intermittent when powering up for some time. I would have to press the switch more than once to energize and use. Now, it will not turn on at all. I have checked the cable from the adapter and have 12Vdc going into the piano but the switch does nothing. Is there an easy way to access to change or do I have to disassemble the whole unit? Quote Link to comment Share on other sites More sharing options...
Jokeyman123 Posted May 23, 2021 Share Posted May 23, 2021 Shoot some pro tuner cleaner in there-maybe you'll get lucky. Not too much-just a drop or so. and work it in. Hope its just the switch wear and tear-could be internal circuitry-the jack soldering on these work loose over time-even a hairline solder crack and you will get nothing. and yes you will have to pretty much break down the entire assembly to get to the switch. If its like my 350-at least the top might hinge off, give you access to the switch. But I would check your power jack where it is soldered to the IC board inside too. 1 Quote Link to comment Share on other sites More sharing options...
Papa Posted May 23, 2021 Author Share Posted May 23, 2021 Thanks very much. I will try the tuner cleaner. It may be a solder connection but somehow I think it is the switch. When I turned the unit upside down to look at the screw configuration the piano mystically turned on. It would then not turn off unless I unplugged the adapter. Thanks again. Quote Link to comment Share on other sites More sharing options...
IanB Posted May 23, 2021 Share Posted May 23, 2021 That sounds like the switch may have failed mechanically rather than needing cleaning Quote Link to comment Share on other sites More sharing options...
Papa Posted May 23, 2021 Author Share Posted May 23, 2021 Thanks. The cleaning is a long shot, but is worth trying before I take the whole thing apart. Quote Link to comment Share on other sites More sharing options...
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