meestaleviz Posted November 7, 2019 Share Posted November 7, 2019 Hello everyone. First time poster here. I have a PX-5S that I just turned on for the first time in a few months, and it seems like it's stuck on a screen, maybe one of the screens that pops up when you move the sliders on the left? Or maybe it looks like one of the buttons may be stuck in depressed mode or something because the screen keeps flickering back and forth between two settings like the button is depressed and it's fighting it. Hard to explain. Please see the pictures below and also a short video that shows how the number in the top right is flickering between two setting. Any ideas? Thanks, Meestaleviz IMG_4724.MOV Quote Link to comment Share on other sites More sharing options...
Mike Martin Posted November 7, 2019 Share Posted November 7, 2019 This looks like you might have a physical problem with Slider #5 Move the slider several times and see the problem goes away. 1 Quote Link to comment Share on other sites More sharing options...
craZivn Posted November 8, 2019 Share Posted November 8, 2019 I've had an issue with my slider #4 being over-sensitive for years. It's almost as if it's in between two detection contacts (or however that works) and can't decide exactly what position it's in. That screen appears when you move a slider and disappears moments after the slider stops so it looks like you might be having the same issue I have. I wish I could offer more help, I haven't yet tried cleaning the pot on my slider to see if it helps. Need to get to that one of these days. Ivan Quote Link to comment Share on other sites More sharing options...
meestaleviz Posted November 8, 2019 Author Share Posted November 8, 2019 Thanks guys. Tried fiddling with all the sliders to no avail. what are my repair options? Who would I take this to? I’ve hardly used the thing and for it to be busted is disheartening. Quote Link to comment Share on other sites More sharing options...
Brad Saucier Posted November 8, 2019 Share Posted November 8, 2019 Are you under warranty? If not, your nearest electronics repair shop may be able to assist. Quote Link to comment Share on other sites More sharing options...
McMick Posted November 8, 2019 Share Posted November 8, 2019 If you move slider 5 around, does that number change at all? (Instead of jumping around at 124-5, does it jump around at different numbers?) Maybe someone could tell you something more, knowing that. Just a suggestion, someone stop me if I'm on the wrong track, but could a plastics-safe contact cleaner/lubricant be used on the sliders? Maybe something got into them. If it worked, it would be a cheap fix. 1 Quote Link to comment Share on other sites More sharing options...
meestaleviz Posted November 10, 2019 Author Share Posted November 10, 2019 BIt if an update. I’ve discovered that if I press down on the K3 knob the screen goes away...but I have to press pretty hard and when I stop pressing the screen comes back. I’m thinking I’m going to have to have this repaired somewhere. Anyone know who I could send this to? I can still play the keyboard but there’s a ton of reverb. Anyone know how to turn off the reverb? see video IMG_4740.MOV Quote Link to comment Share on other sites More sharing options...
Brad Saucier Posted November 10, 2019 Share Posted November 10, 2019 Press the system effects button to adjust reverb using the plus minus buttons. Press and hold the sys effects button to disable system effects. Quote Link to comment Share on other sites More sharing options...
mike71 Posted November 10, 2019 Share Posted November 10, 2019 Maybe it's simply a loose connector between the sliders board and the DSP board. Not all the sockets in the PX-5S have a retention tab, so moving the piano could cause the pull out a bit and generate false contacts. Quote Link to comment Share on other sites More sharing options...
meestaleviz Posted November 11, 2019 Author Share Posted November 11, 2019 Is there a good walkthrough somewhere that shows how to take it apart and troubleshoot this stuff? Quote Link to comment Share on other sites More sharing options...
Casiofun Posted November 11, 2019 Share Posted November 11, 2019 You could try backing up your settings and doing a system initialization to see if that clears it. Be sure you are on the latest firmware after the reset. Quote Link to comment Share on other sites More sharing options...
Jokeyman123 Posted November 12, 2019 Share Posted November 12, 2019 There are my posts about the PX350 and a others here-with photos showing how to disassemble the PX350-very similar in construction to the 5s. I recall somewhere on the web-someone posted a parts disassembly specifically for their PX5s, when they wanted to do a custom paint job. Google that if you can. I can't seem to find it. Here's my post-did quite awhile ago for different reasons. Quote Link to comment Share on other sites More sharing options...
Jokeyman123 Posted November 12, 2019 Share Posted November 12, 2019 I have one other suspicion-might or might not work. I have repaired several Korg microkontrol sliders and discovered something which illustrated why these slide pots were intermittent. I disassembled a slide pot (a 10K) to study-and surprise-found a chunk of dust which managed to get inside-that's right-inside the wipers in the slide pot which are tiny wires which rub against carbon traces. No matter how i cleaned the slide pots from above, I was not getting this bit of junk out, didn't even think of it since it was in under the open slot above. Once I got that out, perfecto. If you can get some compressed air with a very thin nozzle-you might try getting that inside the pot, and try to see if there is junk in this same spot-doesn't take much to stop a slide pot from working. I'd show a diagram, but i don't have one handy. This could be a repair without disassembly. The other malfunction could be a cracked solder joint at the solder points for the slider, and sometimes a ribbon cable could slip loose a bit-which might be the case with the knob controller. Quote Link to comment Share on other sites More sharing options...
meestaleviz Posted November 12, 2019 Author Share Posted November 12, 2019 I appreciate all the feedback, folks. I’ll try to crack the case once I have some free time Quote Link to comment Share on other sites More sharing options...
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