Question about Yamaha Music

1 Answer

I have a yamaha p-155 88 key digital piano the upper octave has no sound

Some of the keys seems to be out of tune i am looking for a repair person who could come to my house to repair it

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,212 Answers

Try local Yamaha dealer. They may not make house calls, few people these days do.

What you might try if you are up to the challenge is flip the keyboard over- unplug it. remove the screws that hold the top and bottom shells together- do not let weight of unit rest on keys, especially when opening it up.

Look for physical damage to the keyboard action in the vicinity of the nonfunctional section. Check for broken printed circuit board. If you see any cracks, see where it ends and drill a small hole at the end of the crack to halt propagation. clean the varnish off the circuit tracks and tin the broken tracks first on either side of the break then bridge them with solder. Use a modest sized soldering iron and small diameter (rosin core only) solder. If there are any broken wire connections, resolder them. This may require part of the action to be removed from case- take pictures first before proceeding- make sure they show exactly where the connectors are and what wires are present. etc. You want to be able to refer to the pictures in the event you forget details of disassembly.

If nothing looks out of place, look for solder joints that do not appear to have flown out nicely- reflow them adding a little solder.

Posted on Feb 13, 2012

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad
marinelvr18
  • 5 Answers

SOURCE: Sticky Keys for Yamaha Digital Piano YDP-121

have you tried using the can of air. you can get it at almost any drug store walmart or kmart. just spray the can of air between the keys and they should become unstuck.

Posted on Dec 13, 2008

  • 1137 Answers

SOURCE: The 'feet' my piano stands on broke during a move

Try www.yamaha24x7.com/yamahaoms/

Posted on Jun 23, 2009

  • 5603 Answers

SOURCE: Our Yamaha clavinova CLP-115 is buzzing, even with

Without power to the unit no sound should be generated. Make sure there are no other connections.

MAYBE you have a wall transformer behind it that is buzzing. MANY wall transformers develop buzz.

Another source is flourescent lights and even some of the low voltage halogens have noisy transformers in the base.

Posted on Nov 18, 2009

  • 5603 Answers

SOURCE: the pedal of our Yamaha YDP223 digital piano is

Check the connector underneath the pedals hasn't become dislodged and of course the one that plugs in underneath. Grvity works to unplug these.

Check the contacts of the pedal switches.

you say pedal... which one? Damper, Sostenuto, or Soft or all of them not working?

Posted on Mar 30, 2010

  • 5603 Answers

SOURCE: Hi, I am undecided about

I have two Yamaha's and I will say they are maintainable. Almost ALL the weighted piano key models use a keyboard made by one company as I understand it. I can easily get service manuals for the Yamaha, not quite as easy for the Roland... same goes for repair parts. Your decision... listen to each and decide. Hint: Use a set of headphones to do the compparision rather than internal speakers as the orientation in a music store can drastically change the sound.

Posted on May 01, 2011

Testimonial: "Great, thanks..I know that Yamaha fidelity and care is better."

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Key B2 playing to loud, not touch responsive


What is your piano brand and type?
Damage to the contact rubber can cause note plays loudly or,
note does not plays at all.
It is caused by:
1. Carbon rubber contacts dirty / dusty (yellow arrow). Clean with a pencil eraser (or cloth). Gently rub it.

key-b2-playing-loud-not-touch-wy0wtjmd43l3of51yru11dct-4-0.jpg

2.
Contact rubber is torn (your case). If this happen,it can not be repaired or glue. So, you have to replace one octave.
The yellow arrow indicates the side that is often torn.
key-b2-playing-loud-not-touch-wy0wtjmd43l3of51yru11dct-4-1.jpg

Rubber side that is torn, usually not seen, unless we move / pressing gently on top (In the rubber contact position is not installed on the board.)
Examples of this picture was yamaha psr.
key-b2-playing-loud-not-touch-wy0wtjmd43l3of51yru11dct-4-3.jpg
.

Oct 14, 2015 | Music

1 Answer

How do i fix a Yamaha P95 that sounds Es with Fs and Bb with Bs across all the octaves?


Whether it happens to all of the key?
If yes, transpose setting may have changed. Change the setting to normal (0).
If the normal transpose, but tuning is still not standardized, check Pitch Setting.
To Restore Standard Pitch setting:
Hold down the A-1, B-1, C0 and C # 0 keys simultaneously and press any key between C3 and B3.
View image :
fix-yamaha-p95-sounds-es-fs-bb-bs-across-vzw3qjj2ajjzgyoqcmqtppa4-4-0.jpgfix-yamaha-p95-sounds-es-fs-bb-bs-across-vzw3qjj2ajjzgyoqcmqtppa4-4-1.jpg

If the above procedure is still no effect, try resetting the factory settings / Initialize overall: :
This is the steps:
Initializing the Settings
When you initialize the settings, all backup data stored to this instrument will be initialized and reset to the factory default settings.
Turn off the power to the instrument. Then, simultaneously hold down the C7 key (right-most key on the keyboard) and turn the power on again.

NOTICE
Do not turn off the power to this instrument while it is initializing the data in its internal memory (that is, while the button indicators are flashing).

View image:
fix-yamaha-p95-sounds-es-fs-bb-bs-across-vzw3qjj2ajjzgyoqcmqtppa4-4-3.jpg

fix-yamaha-p95-sounds-es-fs-bb-bs-across-vzw3qjj2ajjzgyoqcmqtppa4-4-21.jpg

Notes:
If this instrument somehow becomes disabled or malfunctions, turn off the power to the instrument, then perform the initialization procedure.

fix-yamaha-p95-sounds-es-fs-bb-bs-across-vzw3qjj2ajjzgyoqcmqtppa4-4-36.jpg

Sep 07, 2015 | Yamaha Music

1 Answer

Some keys make no sound when played. How do you cprrect this?


try to clean under neath of those particular keys very gently with cotton buds .2)is it the case with in all the octaves 3) has the K.B been in humid places

Sep 29, 2014 | Yamaha P95 Digital Piano

1 Answer

G# and A# Ghost Notes!


First try looking in your transpose settings. Refer to your manual to see if any arpeggiation/unnatural chord settings were inadvertently created by you or made by another user. If you believe it is a software problem you can not solve, back up your memory bank, remove your memory card, and hard reset your keyboard. Insert your memory card and check to see if your problem still exists.
If it is a technical problem, it sounds like you may need to get it checked out by an engineer/repairman. Sometimes when a digital keboard's keys collect too much dust/debris they can trigger multiple keys that aren't being pressed. Think about it like a key getting caught on an upright piano and pulling back the hammer next to the one that was played. A digital piano works off of one or several printed circuit boards or PCBs. The printed circuits usually can not short circuit because the wires and circuits sit in fixed positions. If an alien conductive fiber or series of conductive fibers connects a conducter to another, or if there is any humidity inside your piano it may cause circuits to misfire when a circuit is connected in the area. This could explain why notes you are not playing are being activated in the area in which you are playing.

If you are in a humid area and you suspect that this may be the cause you can attempt to draw out the humidity before getting a an expensive diagnostic done. Find a box large enough to house your keyboard. [If it is on a stand take it off and] place it inside the box. Cover the keyboard with plastic wrap (so as to prevent any foreign objects from getting into the instrument) and very carefully surround the piano with white rice. Remove the plastic wrap, close the box and leave it alone for a few days. The rice draws out any moisture from the electronic components. Very carefully (again so as to avoid getting any rice inside it) remove the keyboard from the box; remove any dust from the body, face, keys, and other components. Try your keyboard now. If humidity/moisture on the PCBs was the problem it should be solved. If not it is time to take your piano for a tune-up.
Hope this helps!

Jul 12, 2013 | Yamaha Music

1 Answer

Playing certain 3 or 4 notes at a time causing sound of one or more extra notes.is there a quick fix?


Have a professional tune it for you. It may be that some strings have loosened/tightened.

Sep 06, 2012 | Yamaha P95 Digital Piano

1 Answer

Hello, I have a Yamaha P90. 4 keys are not responding. all others are ok and give sound. What happened ?


If they are the same note- different octave- it may be a bad solder joint near the main oscillator IC.

If they are the same cluster (adjacent white keys or adjacent black keys) in the octave, it may be a faulty wire connection.

Apr 01, 2012 | Yamaha P90 Digital Piano

1 Answer

I'm using the Yamaha P-85 Digital piano. Unfortunately it has lately had some problems. When I'm playing to notes next to each other (especially e and f (mi & fa) or b flat and b (si & si...


In playing fast you have to make sure to release the note fully and let the key come up. These keys have TWO contacts that are used in the scheme to measure note velocity. If BOTH contacts don't open, the note will NOT re-fire. The second symptom you have written would be a characteristic if one of the disconnect diodes has shorted. These diodes direct the strobe signals that scan the matrix of key contacts to avoid other octaves responding when multiple keys are depressed including those in other octaves. Servicing of the unit is required. It is unlikely you have the tools to DIY this problem. ONE THING to try is to tip the unit and gently tap it to see if some debris MIGHT have fallen in that may be shorting some of the matrix connections.

Apr 25, 2011 | Yamaha P85 88Key Portable Digital Piano

1 Answer

Yamaha Electronic Piano- certain notes malfunctioning


Either the first or second closure matrix line for the "A" keys is bad.

This may be a cracked or shorted circuit board.

A bank of diodes is used to prevent sneak electrical path if more than one octave has notes pressed.

First thing is to clean ALL the key contact areas and the conductive rubber pills with 99% isoprophyl alcohol.

This involves dis-assembly of the key area. If you are not competent in electronics, best left to a pro shop.

The keys are scanned in a matrix, two contacts per key and all the individual notes are in common (all the "A;s", "B's"...) And each octave is strobed for the first set of contacts and then for the second set of contacts. an the whole octave is read in parallel.

The reason for two contacts is one closes first and then the other as a key is lowered. The time between these is measured and is the note VELOCITY which for a piano controls the loadness of the note. IF ONE of the two fail, the loudness will vary as yours does.

Nov 24, 2009 | Yamaha NP 30 76 Key Lightweight Digital...

1 Answer

Kurzweil piano keys are clicking seems to be worn out.


I don't see you doing any damage by having a look but I would get a piano tuner or repairer in to investigate the problem expertly - no slight on you. But if your Church congregation depend on it it's well worth the money.
Good Luck

Sep 02, 2009 | Yamaha NP 30 76 Key Lightweight Digital...

1 Answer

Yamaha clavinova won't play C natural in any octave


Hi ...
There are flexible cables that connect the keys to the main electronics. The connectors for those cables sometimes age poorly..
It is fixable. But dont "get taken" on a repair.
If it's just resoldering a few points,it shouldnt be more than $100.00
to fix

Jan 04, 2009 | Yamaha Full-Size Keyboard

Not finding what you are looking for?
Music Logo

Related Topics:

149 people viewed this question

Ask a Question

Usually answered in minutes!

Top Yamaha Music Experts

Matthew Spark
Matthew Spark

Level 3 Expert

1066 Answers

Mike

Level 3 Expert

4340 Answers

Brad Brown

Level 3 Expert

15633 Answers

Are you a Yamaha Music Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...