Yamaha psr ew400 piano loses sound

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • laidman
    New Member
    • Nov 2023
    • 4
    • Costa Rica
    #1

    Yamaha psr ew400 piano loses sound

    Yamaha PSR EW400 piano intermittently loses sound and shuts down.

    Youtube people recommend verifying that the DC jack's solder connections aren't broken, and the replacement of a couple of capacitors in the vicinity of the DC jack. While these solutions might work, I'd feel a lot more secure if I had a schematic to help me check the status of the myriad components.

    Schematic and suggestions are welcome.
    Tags: None
    • lotas
      Badcaps Legend
      • Jan 2016
      • 4819
      • Russia
      #2
      Re: Yamaha psr ew400 piano loses sound

        Comment

        • stj
          Great Sage 齊天大聖
          • Dec 2009
          • 31269
          • Albion
          #3
          Re: Yamaha psr ew400 piano loses sound

          i wouldnt be surprised if a rom is failing - these yamaha keyboards are all dying now.
          if you have the tools - read the rom out - for backup purposes

            Comment

            Previous template Next

            Related Topics

            Collapse
            • jjne
              Yamaha RX V675 sound issues
              by jjne
              I have an old Yamaha RX V675 receiver which is starting to develop issues with the sound, although it doesn't quite match up with what folk normally report with these.

              From cold, the sound cuts in and out. When this happens the amp is losing sync with the optical input (speaker graphic disappears from the front panel). But this is not resolved by putting the unit into pure direct mode. After a couple of minutes this resolves, although there are occasional clicks from the speakers after that.

              At first I thought it was either a speaker relay or the DSP, but I don't think...
              06-24-2025, 07:01 AM
            • AlexVG
              YAMAHA CLP-550 without of sound
              by AlexVG
              Hi.
              I have an old YAMAHA CLP-550 without sound. (Some times I can get some kind of noise or distorted sound)
              I have replaced all green marked elements, but it gave me nothing.
              The IC12 chip LC9116A-105 (red marked) remains under suspicion yet.

              But it is custom YAMAHA's chip, and I can't find any information about it.
              Maybe somebody came across with the same issue?
              Any information will be very useful. I will be very appreciated.
              Thank you....
              06-08-2025, 09:29 AM
            • ChaosLegionnaire
              what i went through dealing with my mobo with dead onboard sound!
              by ChaosLegionnaire
              so i took out one of my spare gigabyte ep35-ds3r mobos from storage for use to do some cpu, ram and video card testing of stuff i bought from ebay and got for free from momaka. he bought 50 e8400 cpus for cheap from ebay some years ago and i decided to help him relieve him of some of his supply since he had waaaay too many!! what did we say about hoarding too much stuff and depriving others of them?! *cough* socialism *cough* lol!

              i had to blow some dust off the board and heatsinks with the datavac as i didnt clean it up before putting it in storage. after finishing...
              09-13-2022, 09:02 AM
            • hemant_2222
              Yamaha 2064 No sound but Test audio working
              by hemant_2222
              Hello Guys,

              Greetings!

              Hope you all are doing well.

              I am looking for suggestion on Yamaha 2064. The problem with this receiver is that it has no sound however when the test tones are activated it does outputs from all the speakers. It is working in two channel stereo mode but when you select other sound modes, it doesn't. The last time it had a problem, I had replaced the DAC
              PCM1681DBQR - IC263 and it worked fine.

              Other issue with it is one of the STK ICs is getting more heated then the other one but that can be looked at later.
              ...
              11-01-2025, 11:20 PM
            • maleksa
              Yamaha MOX8 boot freeze and distorted sound
              by maleksa
              My Yamaha MOX8 synthesizer recently developed two issues.

              Firstly, after booting up, it operates as normal. However, after about 5 minutes, the sound starts to get distorted (broken up screeching sound) almost like putting it through a guitar distortion pedal. After a while, the distorted sounds will go away for a while and comes back. At times, the synthesizer will also freeze I need to power off and on again.

              Secondly, when powering off and on again, there will be times where the synthesizer will freeze during the boot sequence (freezes at the MOX8 Opening Screen),...
              11-07-2024, 03:28 AM
            • Loading...
            • No more items.
            Working...