Have you tried to reset the keyboard to its' factory default condition to see if this resolves the problem for you. 11/23/2016 by One solution may be to clean the contacts for the keys using alcohol wipes or to replace the rubber pads. I changed the batteries, but the keyboard did the same thing. Omg! I' ll post a video to make it clearer.. 11/22/2016 by © 2020 iFixit — Licensed under Creative Commons — Privacy — Any other fix perhaps? By power feed I mean in my example the power feed is +3.3V DC thru a 10K Ohm resistor and then to the keyboard key multiple wiring. on a psr e403 there are only 12 separate power feeds for all the keys. Use cleaner and rag to clean the entire bedding of key. Any other combination of keys will make the sound, its just that specific combination and it happens for all octaves. With those carefully disconnected you can shake the half with the keybed to try and loose any dust or debris under the keys. Terms — Thanks! Being an entry level digital piano, we wouldn’t expect too much from the P45 in the area of its design.However, there’re quite a few things that we like about this versatile piece of instrument.The Yamaha P45 isn’t the prettiest digital piano out there. But it’s still easy on the eyes with a simple and ‘get to the point’ exterior.The frame is made of plastic with a matte finish.As for color, it’s the classic black and white. Starting with the power off: While holding the rightmost white key on the keyboard (C7) along with the three rightmost black keys (F#6, G#6, and A#6), turn the … So these keystrokes are not getting registered. The problem still persists. Hello, the C and F# keys on my Yamaha P45 digital piano stopped working this morning. While holding down the lowest key (A-1), press the [ ] (Standby/On) switch to turn on the power so that the power indicator flashes three times, after which the Auto Power Off function is disabled. Thanks in advance! The notes are “generated” by a +3.3V supply being fed through to the selected keys and back to the microprocessor on the appropriate input for the note. Push down, then back on the key that you want to remove, with the key stop removed, to unhook it from the cut-out in the key frame. My Yamaha Portafone keyboard has just stopped working. Then I tried reversing the 27 pin flex ribbon cable that connects the keyboard to the PCD, same result. Could this be the problem, November 10 by Back to the List. I had to take mine to a service center and they apparently replaced one of the boards to fix it. My thinking is that since it is only happening on two key combinations, perhaps they are sharing the same power feed and that there may be a problem with it. C and F# pairs on the 5th, 6th and 7th octaves and the last C8 key. Then I tried reversing the 27 pin flex ribbon cable that connects the keyboard to the PCD, same result. It will turn on and a few seconds later, fade out and go silent. It may be that for your particular keys that the voltage is slightly lower for whatever reason so that it does not react properly. The B & C keys have problems with it. Same issue for the F and F#. Last Update: 4/4/2017. maybe there is a problem with some componnent that have to be changed, September 12 by This issue can be caused by deteriorating rubber pads under the keys or dirty contacts. When you have the manual go to p.18 to view the dis-assembly instructions. Goldine Silva. But take note, in combination with other notes all is fine. I tried reversing the ribbon cable which connects the higher octaves to the middle board, same result. 06/19/2019 by I have a yamaha piagerro npv60. Has anybody else faced this issue? Yamaha p-45 keyboard with several keys not making sound. Here’s the service manual for a Yamaha P45B, hopefully it is close enough to a P45 to be of some help. Luigge Lena. Hi, my home C seems to be misaligned. Hosea Kenji Baldeviso. Nery Gavarrete, Hi i have a gl 444 keyboard when i plug the adapter the speaker has sounds like vibrating sounds but when i play the keyboard it doesn't have sounds can you help me pls i haven't played it for 8 years. One is to use canned air to blow between the keys. For everyone else searching here are a few options. All the diodes on the keyboard showed the same output. 1) Press and hold the [GRAND PIANO/FUNCTION] button, then press one of the following keys: 2) For Fixed- No touch sensitivity: Press the A2 key. © 2020 iFixit — Licensed under Creative Commons — Privacy — August 20 by I didn’t find any dust on the contacts. I didn’t find any dust on the contacts. regardless of whether you play the keyboard. The high performance electronics repair kit. Certain keys combinations are 'connected together' as far as the 'feed'power is concerned only separated at the decoder stage to individual inputs. Hosea Kenji Baldeviso, March 17 by Accessibility. How did you open the piano? "Clr" will appear on the display. Hello, the C and F# keys on my Yamaha P45 digital piano stopped working this morning. I have noticed lately that this only happens in damy, rainy or stormy weather and the problem goes away during dry periods. NOTE: Do not turn off the power while Clr is showing on the display. This does not work for this issue at all. I have a yamaha p45 and all D keys work fine but if I play D and E they won't make any sound. Cleaning the piano would improve playability of piano. This morning I have the same problem with Yamaha p-45. Terms — P45,P71: Setting the Touch Sensitivity. The latter won't sound. C and F# pairs on the 5th, 6th and 7th octaves and the last C8 key. PapaDobson. Is there any way t … read more My only other suggestion is that you purchase the Service manual (as it is not available for free on the internet.) winslowevan, I have had this problem a long time. Erich Dreyer. If I may add, when pressed together, they both sound. While holding the rightmost white key on the keyboard (C7) along with the three rightmost black keys (F#6, G#6, and A#6), turn the power switch on. Repair manuals for different types of musical instruments, including guitars and keyboards. I tried reversing the ribbon cable which connects the higher octaves to the middle board, same result. Only one after or before gives me the problem. Either no signal transmitted or no signal registered.