20 Most Recent Yamaha YPT400 61 Key Portable Keyboard with Touch Sensitive Keys Questions & Answers

Yes. You will need to have a MIDI interface on your OC and also select in the sounds control panel of windows that you are using the external synth. The MIDI will expect the PSR to respond to the "general MIDI" assignments.

Yamaha YPT400 61... | Answered on Aug 02, 2017

Normally this would be from dirty or broken key contacts.

Yamaha YPT400 61... | Answered on Jun 14, 2017

how can i play .bup file in computer?

ok here is the solution!!!!!!!!

    • we should have a mic pin and audio cable as shown in this pic
    • _1244.jpg_1245.jpg
    connect these cables,and connect big pin to the piano and small pin to the computer (mic or input jack)
    now take windows movie maker (start-all programs-windows movie maker). click on narrate timeline (as a mic icon below windows movie maker).
    now click start narration on the pc and play your song on the piano. you can see input level highlights. now your song is recording. when your song completes click stop narration and save to the pc. walah if you can't understand this say to me. i can add video. sry for my worst english

Yamaha YPT400 61... | Answered on May 02, 2013

You have to disassemble the case to get to the keys. They LIKELY stay with the bottom of the case. Be careful of the cables from the upper half of the case to the lower.

I am not sure what type keys you have. If these are the semi-weighted piano type, the spring underneath gets out of position... If they are the silicone dome type, the dome may be crushed and you will have to replace the section that is bad. Hopefully the circuit board under that type is not cracked.

The first type mentioned requires some tricks and for that type you MAY have to remove several keys to assemble them in order. I had to make a little "L" shaped piece of metal to get the springs into place. It took about a 1/4 inch leg to go between and under the key to lift the flat spring into place.

One has to get the tang at the front of the key engaged as well. Certain notes you have to install in sequence as the black keys can block getting a white key in position.

Yamaha YPT400 61... | Answered on Jan 29, 2013

The BUP file is proprietary format for each model Yamaha keyboard. Your best solution is to export via MIDI interface and use that format.

Yamaha YPT400 61... | Answered on Jul 30, 2011

Dirty key contacts. They are conductive rubber pills that are pressed against circuit board traces. Clean ONLY with 99% isoprophyl alcohol and Q tips gently. Here is a service manual link:


Scroll down to "get manual" and click on it to download. Ignore other downlooad links.

Yamaha YPT400 61... | Answered on Jul 06, 2011

The contacts for the key are dirty. There are two contacts which one closes first and are used to sense velocity. You need to disassemble and clean both the conductive rubber pills AND the circuit board traces they contact. Do ALL keys while you have it open. Be very careful to not damage cables and to get all the correct screws in the right places. If you are uncomfortable working on electronics, best take it to a shop.

Yamaha YPT400 61... | Answered on May 21, 2011

The BUP files are yamaha's proprietary back up file format.
Having the appropriate drivers installed, once you make the usb connection from computer to keyboard (yamaha), you should now be able to navigate the Yamaha's files as if it were a drive on your computer. I recommend placing the file in a directory with similar files.
Make a backup beforehand to avoid and problems.

Yamaha YPT400 61... | Answered on Apr 04, 2011

Transfer the data in MIDI format. The BUP format is a proprietary format to the keyboard and can ONLY be played by the keyboard. Either dump the data as MIDI format or using a MIDI interface send it to the PC or lastly, capture the audio using an audio interface on the PC.

Yamaha YPT400 61... | Answered on Nov 26, 2010

Key contacts are dirty. You will have to service the unit. The contacts (two per key) are conductive rubber "pills" that press down on circuit traces under the keys. Use ONLY 99% isoprophyl alcohol and Q Tips to clean both the black pills in the silicone domes and the circuit traces themselves. Be gentle when doing this. When opening the unit, be careful of all the cables as they are easily damaged.

Yamaha YPT400 61... | Answered on Nov 01, 2010

You will need the CDROM that should have come with the keyboard when you purchased it. On it will be the drivers that need to be on the computer for it to use the usb. The link to the manual is here:http://www2.yamaha.co.jp/manual/pdf/emi/english/port/psri425_en_om_a0.pdf Please look at page 86. If you don't have the CDROM you may be able to download what you need by contacting Yamaha by email through this link and asking:http://www.global.yamaha.com/support/contact.php I hope this helps.

Yamaha YPT400 61... | Answered on Oct 23, 2010

Contact Yamaha America "parts". Be sure to have the serial number of your keybaord handy. Find the phone number online for the California service/support group. They are usually fair in prices of the CD's.

Yamaha YPT400 61... | Answered on Sep 28, 2010

The replacement cost of these is prohibitive often greater than $200.

You should try to clean the heads in your drive and see if you can spot a mechanical problem. Clean the heads carefully with 91% isoprophyl alcohol and Tube Gauze on a tongue depressor. Be very careful.

Yamaha YPT400 61... | Answered on Aug 09, 2010

The BUP is an archiving format proprietary to the Yamaha apparently containg styles as well as note data and conversion is really not easy.

If you can get the instrument itself to spill out MIDI and use a MIDI interface and software to capture it on the PC is the best plan.

Once it is in SMF format you can play it on the PC.

Yamaha YPT400 61... | Answered on Jun 25, 2010

Contact Yamaha America parts dept under "support". There may NOT be anywhere to download what you are missing. It would be best to get an original CD if you can.

Yamaha YPT400 61... | Answered on Mar 19, 2010

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