iFixit - Answers With Device "Electronic Keyboard"

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 March 27, 2026 at 9:20 MST

Casio CTK-3000: The keyboard stopped working. It doesn't switch on.

Wed, 11 Mar 2026 16:35:30 -0700

My keyboard doesn't switch on and there is nothing on the display.

⟐ Commented March 11, 2026 at 16:35 MST

Electronic Keyboard: Casio WK3700 DSP not working

Wed, 04 Mar 2026 00:55:41 -0700

I have an old Casio WK3700 electronic piano/keyboard.

When powered on in Grand Piano mode 000 it works fine. If I try any other mode the DSP button lights up and it emits a distorted thrumming sound and eventually powers off.

I assume the DSP circuitry is stuffed. Video

⟐ Answered March 04, 2026 at 0:55 MST

Casio keyboard: wk1600 casio keyboard BND RESET problum

Mon, 12 Jan 2026 10:07:55 -0700

my wk1600 casio keyboard when i turn it on,showing only blank display.but after few minutes BND RESET massage display on it.please help me to solving the problum

Casio CTK-501: Is my Casio Keboard broken? or just the DC Power Supply?

Wed, 07 Jan 2026 18:32:02 -0700

So my Casio CT-600 Keyboard runs a DC 9V Powersupply. My friend accidentally connected it to a 220V Outlet (My keyboard needs only a 110V btw, so it has its own transformer.) After that the Keyboard didn’t work. I was planning to buy a replacement for my DC Power Supply, but before I do, I really need to know what’s broken. Can anyone please answer, I would really appriciate it. Thank you!

⟐ Commented January 07, 2026 at 18:32 MST

Electronic Keyboard: Yamaha P-45 Wont Turn On and switched Power Supply

Mon, 29 Dec 2025 09:17:30 -0700

My Yamaha P-45 Digital Piano Won’t turn on, I switched the power supply and still it isn’t turning on, I have a feeling I have to switch the internal power supply, but don’t have experience in that and would love some help on what you might think it is,

Thank you very much for your time!

⟐ Commented December 29, 2025 at 9:17 MST

Electronic Keyboard: Korg Kross 2 - Pitches reversed or not sounding

Fri, 14 Nov 2025 08:32:48 -0700

Keyboard worked great for 4-5 years but this week the notes started playing backwards (high pitches on the left, low pitches on the right). Three keys on the left side don't sound (Bb2-C3). And an octave of keys on the right side (C#6-B6) don't sound.

Each time I turn the keyboard on, it says "Now writing to internal memory" for a few seconds. Then it displays the message "System warning: The internal memory has been corrupted, likely due to an interruption of power while the system was writing/saving data. This has been repaired and the affected Bank has been initialized."

I can't think of when it would have lost power while writing to internal memory. I almost never save anything.

In an attempt to resolve the issue, I upgraded to the latest firmware 1.22 (previously on 1.21). Per the "Restoring the factories settings" section of the manual, I tried "Loading the preloaded data" and "Initializing the system". After each attempt, I got the same results.

Any ideas?

⟐ Answer accepted November 14, 2025 at 8:32 MST

Casio keyboard: Power doesn't turn on

Fri, 22 Aug 2025 09:02:24 -0700

My CT-X9000IN won't turn on. What could be the issue?

⟐ Commented August 22, 2025 at 9:02 MST

Electronic Keyboard: stick on and solder thin carbon printed circuit pads for keyboards

Mon, 18 Aug 2025 10:19:11 -0700

Im repairing an M-audio Hammer 88 with 2 keys not working.

I saw the following video and im trying to find the parts used

https://www.youtube.com/watch?v=Jk3SgI2C...

Yamaha YPT-300 Keyboard: Why won't my keyboard power up? The adapter is fine.

Thu, 07 Aug 2025 00:43:07 -0700

My adapter works just fine, but my yamaha won't power up. I did have to hold tha button in for a minute till it came on, but now, nothing.

⟐ Answer accepted August 07, 2025 at 0:43 MST

Yamaha YPG-225: Power input jack broken

Thu, 10 Jul 2025 07:39:37 -0700

My power input jack is broken need to replace

⟐ Answered July 10, 2025 at 7:39 MST

Electronic Keyboard: yamaha psr e343 automatically turnon on adapter plug in.

Sun, 22 Jun 2025 07:28:44 -0700

Why does my yamaha psr e 343 turns on automatically when i plug in my power adapter without me turning it on and no sound but all other operations are functioning ??

⟐ Edited June 22, 2025 at 7:28 MST

Yamaha YPG-225: yamaha psr 350 keyboard none of the keys have sound

Sun, 18 May 2025 01:06:56 -0700

I HAVE AN YAMAHA PSA 350. REPAIRED KEYS BUT NO I don't have sound from all the keys

⟐ Commented May 18, 2025 at 1:06 MST

Electronic Keyboard: Problem with yamaha P95 Keyborad

Mon, 05 May 2025 15:02:03 -0700

I'm having an issue with my Yamaha P95. Some keys blast very loud without even touching them when playing some chords. I've been facing this problem for 1 week now. I only bought the piano 3 weeks ago second hand and the first 2 weeks everything was working perfectly fine. I tried to clean all the dust inside the piano but I can't really open the top and reach under the keys. I dont really know if the dust is even a problem or maybe the moist and cold Sydney air. One thing I noticed is that under the keys the is a very creamy texure sticking, almost like vaseline. I really need help as I cant play at all like this. Any assist would be highly appreciated.

Here the problem:

https://www.youtube.com/shared?ci=AMq70U...

⟐ Commented May 05, 2025 at 15:02 MST

Yamaha YPG-225: The B Key plays too loud

Sun, 27 Apr 2025 21:36:26 -0700

The B key above middle C plays too loud when played

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 March 31, 2025 at 20:35 MST

Electronic Keyboard: Yamaha P105 Keyboard no sound. Bad Amp, DAC or Potentiometer?

Fri, 28 Mar 2025 01:28:13 -0700

Hey everyone,

I have a Yamaha P105 keyboard that I picked up for free. It's in great physical condition, but the sound is broken and I'm trying to understand why.

By broken I mean that there is no keyboard sound and the demo songs don't work. The only sound I can get out of it is what sounds like a bit crushed/distorted audio when I select one of the keyboard sounds or the demo songs. It plays for about a second then nothing. I know that the CPU works because the MIDI system works perfect, all of the keys work, the buttons work, the lights work and the debug options work.

This keyboard has 3 different audio outputs; the onboard speakers, the headphone out, and the line outs. I was expecting there to be some differences between them, but the same problem is present on all of the outputs, which is the lack of piano sound and only the strange distortion that plays when changing modes. Interestingly, changing the volume does produce a scratchy sound that is typical of potentiometer failure, but the distorted sound effect does indeed get louder as I increase the volume.

I don't have a schematic for this, and originally I was thinking that amplifier chip (YDA 175) was damaged, but since the problem is also present on the Line Outs, I am more inclined to think that the DAC (WM8524) is damaged somehow.

I suspected the amplifier because of this post I found, but the chip on my board has no signs of damage.

https://www.alexanderpeppe.com/yamaha-p1...

My board looks like this:

Amplifier chip is IC22 and the DAC is IC23. Has anyone seen anything like this before? Does a DAC chip fail like this? Could it be the amplifier, or the volume potentiometer? Any help at all would be appreciated!

⟐ Commented March 28, 2025 at 1:28 MST

Electronic Keyboard: Which transistor do I solder in my synth? Yamaha PSS-370

Mon, 24 Feb 2025 10:51:57 -0700

Hello, I bought this used Yamaha synth, and it doesn’t work right. When I power it on you can hear the speaker activate, but nothing else is working (No power light, no buttons or keys are responding). I opened it and saw that someone in the past changed what I assume is the power regulator transistor with an S8050. My question is: What is the original transistor that is supposed to be in here? You can obviously see the s8050 is not supposed to be here looking at the illustration on the board. I have a suspicion that a 7805 volt regulator is supposed to be in there, because I’ve worked on Nintendo entertainment system clones where they cheaped out by putting an s8050 on board instead of it. I’m really not sure though, so soldering it will probably be the last resort if I don’t find a concrete answer. If anybody knows, thanks in advance!

⟐ Answer accepted February 24, 2025 at 10:51 MST

Yamaha p45: Digital piano used with wrong voltage. Fixable?

Tue, 07 Jan 2025 01:23:44 -0700

Hi - I have a Yamaha P45 digital piano, which I bought in Canada. I have now moved to Europe. I plugged it in here after mistakenly believing it to be dual voltage. It’s not, and it tripped my electric. Is it irreparably damaged, or would it likely work with a new fuse and a voltage transformer? Thanks.

⟐ Answer edited January 07, 2025 at 1:23 MST

Casio CGP-700: I just got a used Casio CGP-700 and when I attempt to turn on the 40w

Wed, 01 Jan 2025 20:11:46 -0700

I just got a used Casio CGP-700 and when I attempt to turn on the 40w Stand speakers with the grand piano tone selected, the output is a whimpy soft harpsichord sound. It does appear that the wire that plugs into the bottom of the keyboard is frayed where it enters the horizontal speaker box that is part of the stand. Is there a way to separate the 4 wires at that juncture to insure that they are connected and not shorting out?

⟐ Commented January 01, 2025 at 20:11 MST