iFixit - Answers With Device "Musical Instrument"

Electronic Keyboard: keyboard won't power with adaptor - yamaha ac power adaptor class 2 12

Wed, 29 Mar 2023 08:01:46 -0700

my yamaha keyboard has worked fine until now. when i went to turn it on, there was a brief light & then dark again. sometimes i don't even get a blip. does the same thing on other outlets. how can i tell if it's the adaptor or keyboard & how can i fix it? thanks

⟐ Commented марта 29, 2023 at 8:01 GMT-7

Yamaha YPG-225: keys on the keyboard stop working

Sun, 29 Dec 2024 08:14:54 -0700

Hello some of the keys on my keyboard stop sounding. Does it means i´ve got a broken key? I am sure the keyboard hasn´t been hitted by no means.

⟐ Commented декабря 29, 2024 at 8:14 GMT-7

Teenage Engineering OP-Z: How do I remove the keyboard for cleaning?

Sat, 19 Sep 2020 22:01:49 -0700

I was hoping that there was a way to clean underneath the buttons themselves. The board itself seems to be sealed in. Is there anyway around that? Thank you

Electronic Keyboard: keys not working properly

Wed, 17 Aug 2022 05:57:25 -0700

I have a yamaha piagerro npv60. The B & C keys have problems with it. Here's the scenario: - both keys played together, respond to velocity. If you play fast trills or scale, if u hit one first, the next key, either B or C wont sound. You have to time it properly to work. If you hold down either B or C and then press the other... The latter won't sound. But take note, in combination with other notes all is fine. Same issue for the F and F#. This happens in all the B&C and F&F# on the keyboard. Please help! Thanks in advance!

⟐ Commented августа 17, 2022 at 5:57 GMT-7

Yamaha YPT-300 Keyboard: "E" key and 3rd black key is not working.

Fri, 23 Aug 2024 02:51:30 -0700

my Yamaha has 2 keys that are not working in every octave they are out. they are the "E" key and the 3rd. black key.. all the way across the board. Can someone tell me what's wrong?

⟐ Commented августа 23, 2024 at 2:51 GMT-7

Epiphone SG Guitar: How do I prevent my guitar's input jack from loosening?

Fri, 10 Apr 2026 03:47:33 -0700

The input jack on my Epiphone SG electric guitar keeps loosening after several hours of (nonconsecutive) play. I don't want to strip the backing plate screws by removing the plate to tighten the jack once a week! The jack on this model is on the front face of the guitar.

Other than looping the cable through the guitar's strap to prevent excess pressure on the jack, what's a good solution to this problem?

Possible ideas I've thought of include loc-tite (which I'd rather avoid) and replacing the jack's washers with larger diameter ones to prevent the tension from compressing the wood.

⟐ Answered апреля 10, 2026 at 3:47 GMT-7

Teenage Engineering OP-1: Why won't audio come from the right channel of my OP-1?

Tue, 17 Mar 2026 18:42:12 -0700

I have made sure that all the tracks are panned towards the center, but no audio comes from the right channel. If it is plugged into speakers or headphones and panned to the center, audio only comes from the left side. If it is panned to the right no audio come out. I was curious as to if there is something I am missing or if this is a hardware problem that requires repairs/parts. Thanks!

⟐ Commented марта 17, 2026 at 18:42 GMT-7

Teenage Engineering OP-Z: Where do I get replacement encoder dials?

Sun, 07 Jul 2024 23:11:22 -0700

Encoder dials don’t seem to be available and I’m missing two thanks to lending it out, please help

3D file for replacement encoders with space for a 6mm DIAMETRIC magnet https://drive.google.com/file/d/1-O0g11s...

⟐ Commented июля 07, 2024 at 23:11 GMT-7

Teenage Engineering OP-1: Why is my OP-1 not turning on?

Sun, 28 Feb 2021 14:11:54 -0700

I have been storing my OP-1 and using it since 2013. The other week it stopped turning on; currently, when I flip the power switch, I hear the power get to the speaker but the screen does not glow at all. Is this a screen issue, ui issue, or is it something else? It has turned on previously but it only works after I perform a firmware update or sparingly at any other time.

⟐ Commented февраля 28, 2021 at 14:11 GMT-7

Akai MPK25: How can I replace my usb port?

Sun, 26 Jul 2020 13:44:14 -0700

The usb port to my MPK25 is busted, help me replace it, please?

⟐ Commented июля 26, 2020 at 13:44 GMT-7

Korg B1: Korg B1 - specific notes don't work, problem with circuitry

Thu, 06 Nov 2025 17:19:01 -0700

Aloha all, I just purchased a Korg B1 digital piano with known issues. The keyboard sounds great but has specific notes that don’t work. Starting from the E after middle C, all Es, Cs and G#s don’t work.

Luckily, I found another ifixit post, the only place on the internet it seems, where someone understood why specific notes wouldn’t be working. Here is the link: ++"E" key and 3rd black key is not working.

I understand very little about circuit boards, but I was able to identify the problem immediately. C, E and G# receive and give inputs along the same path. There is an issue with the soldering on one of the *things* at the first E key, where the problem starts. See the images for this issue.

So, one of my problems is that I don’t know anything about circuits or circuitry terminology, so I can’t even describe this issue, much less start to fix it.

Can anyone help me at least put a name to this, so I can start to go about fixing it? It seems like a basic circuitry issue that wouldn’t be hard to fix, but I don’t know where to start. Any help is appreciated.

⟐ Commented ноября 06, 2025 at 17:19 GMT-7

Teenage Engineering OP-1: Why is my USB port not working?

Mon, 19 Dec 2022 13:49:49 -0700

The USB-port (data connection!) is not working (whereas charging via USB is).

I got to know this, when I wanted to save my work and I could not. I tried different PCs with different OS (win xp, win 10, linux ) but the PCs did not recognize my USB device OP-1. Either (most of the time) the PC did not react at all or it showed the message "The last connected USB device could not be recognized.".

Okay, then I did something crazy: I tried all of the five options in the TE boot screen.

Most of the options worked, unfortunately option 8. "Format Drive" too.

After that my OP-1 did not work at all. I can switch the device on and off, but that's all, no button is operating. The device is still charging. Invoking the TE boot screen is possible and choosing the options as well, but because of the defective USB port nothing more is possible. BTW I tried several USB cables and several PCs.

Please give me some advice. Is there a TE service point, to which I can send my device in?

Thank you!

⟐ Commented декабря 19, 2022 at 13:49 GMT-7

Teenage Engineering OP-1: Why is my volume knob stuck at one volume?

Wed, 24 Aug 2016 05:27:39 -0700

Hey there,

My OP-1 Just stays at one volume. The knob that controls the volume stays at the loudest even if I turn it all the way down. Not totally sure what to do, or how to repair.

Thanks

⟐ Answered августа 24, 2016 at 5:27 GMT-7

Yamaha P115: Keys Suddenly Not Sounding

Mon, 31 Mar 2025 20:35:51 -0700

Hi. The Db and G keys in the upper octaves (6 and 7) of my P115 are suddenly not sounding. Any ideas how to fix them?

⟐ Commented марта 31, 2025 at 20:35 GMT-7

Musical Instrument: Yamaha Digital Piano P45 - C and F# don't play

Fri, 11 Oct 2024 06:38:11 -0700

Hello, the C and F# keys on my Yamaha P45 digital piano stopped working this morning. C and F# pairs on the 5th, 6th and 7th octaves and the last C8 key. I didn’t find any dust on the contacts. I tried reversing the ribbon cable which connects the higher octaves to the middle board, same result. Then I tried reversing the 27 pin flex ribbon cable that connects the keyboard to the PCD, same result. All the diodes on the keyboard showed the same output.

Has anybody else faced this issue? Any help will be appreciated.

The alternate functions of these keys didn’t work either. So these keystrokes are not getting registered. Either no signal transmitted or no signal registered.

Thanks!

⟐ Answer accepted октября 11, 2024 at 6:38 GMT-7

Electronic Keyboard: Yamaha PSR S770 won't power off with on/off switch after turning it on

Fri, 09 Aug 2024 14:25:54 -0700

Good morning,

Please I have a PSR S770, the issue is it won’t power off each time i power it on, unless I remove the adaptor for it to turn off.

Please buddies, what do you think could be the problem and possibly solution to it?

Am very open to your professional advice now. Thanks, I’m most grateful.

Best regards.

Be safe.

⟐ Commented августа 09, 2024 at 14:25 GMT-7

Fender Frontman 15r: have frontman 15g.is power switch my problem?

Thu, 29 Dec 2016 04:44:16 -0700

bought used from thrift store. Looks new,but when I turn it on it hums even with all of the dials turned down. And if I plug in my cord it starts popping.I don't know whats wrong exactly.I'm thinking power switch?

⟐ Answered декабря 29, 2016 at 4:44 GMT-7

Electronic Keyboard: Yamaha P45 won’t turn off and mutes sounds randomly.

Sun, 23 Jul 2023 10:39:36 -0700

I have a Yamaha P45 digital piano and it’s not turning off when I hold he power button anymore, I have to unplug the adapter. Another thing is that after I start playing, after some minutes the sound stops playing. The power led is on, but no sound is played. This has been going on for quite some time and I haven’t found anything related on the internet, I even tried calling Yamaha but after over 30 minutes on hold I gave up. Any ideas?

Here are the requested images

⟐ Commented июля 23, 2023 at 10:39 GMT-7

Electronic Keyboard: The volume output is very low

Fri, 27 Mar 2026 09:20:45 -0700

I have a Yamaha DGX-220 and the volume output is very low. Can I fix that, or must I refer ta specialist?

⟐ Commented марта 27, 2026 at 9:20 GMT-7

Squier Strat Guitar: How to adjust the action?

Thu, 08 Nov 2018 01:23:20 -0700

How to adjust the action

⟐ Answered ноября 08, 2018 at 1:23 GMT-7