Yamaha PSS Keyboards Easter Egg - Secret Mode on Early Yamaha PSS Keyboards!

On early Yamaha PSS keyboards, there is a secret mode that gives sound effects to the voice selection buttons. I know for sure it works on the PSS-80 'cos I had one about 10 years ago, and discovered it myself!

This egg will put sound effects and other wierd noises on your keyboard.

1. Turn off the keyboard.
2. Hold down the LAST two keys at the end of they keyboard.
3. Whilst continuing to hold the keys down,
turn the keyboard on.
4. Enjoy the new sounds!

User Rating:
7.2
  7.2/10 with 95 votes
Contributed By: devolution on 05-03-2000
Reviewed By: Webmaster
Special Requirements: A Yamaha PSS-80 or similar keyboard
Please correct this Egg if you see errors.

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Comments

Stu writes:
I believe it's some kind of test mode; it also works on other Yamaha keyboards (I tried it successfully on a PSR series model, one with a backlit screen & disk drive).
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GameShowMan writes:
Could anyone tell me which keyboards this works on? Thank you very much.
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Knucklehead writes:
I know it works on the PSS-480 (I stumbled onto this test mode a couple years ago). On the 480 it assigns each button a different note from voice number 2 (I think that has something to do with the ROM version, but I'm just guessing) Also, it displays 480 in one window and 02 in the other window. Also, when in this mode, if certain combinations of three buttons are pressed, a fourth note (or drum sound, if applicable) plays.
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Rob writes:
OK - Listen up, here's the story: Long, long ago in a factory somewhere in Japan, some engineers at Yamaha couldn't get their newest keyboard to work. They worked all through the night trying to get it to work, but still, no joy. The next day, the manager had an idea. "I know!" he said, "Let's build a test mode!". "A what mode?!" said the workers. "A test mode." the manager continued, "We can build in to each of our keyboards a special test mode where we can press a few keys and it will give us a way to test the keyboards functions." Ok, Ok, so it's not quite so fairytale-style as that, but the fact of the matter is, it's simply a test mode used by the engineers. It works on the majority of Yamaha keyboards (PSR-models included), but the keystrokes are slightly different. For the later models (the NEW PSR-220 for example), you have to hold the TOP two keys while you turn the keyboard on. For older models, it's the BOTTOM two keys. On the PSR-220, "TST MODE 1" appears on the display, and beeps and figures correspond to the particular keys pressed (and when holding down the sustain pedal). Hope I have enlightened a few people with this.
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Rob writes:
Sorry if that was a bit long :-)
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shalroth writes:
Works on my PSR-220 and my PSS-595, it generates a square wave tone. On the PSR-3 I tried, it used the trumpet voice. Additionally, on my PSR-220 if you hit the keys hard, it gives a 'click'sound instead, to test the touch responsiveness.
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sponge writes:
Doesn't seem to work on the PSR-270, I tried both first and last, normal and sharps, and both normal and sharps at the same time. Everything I have never works, it's always too new or too old =-p
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devolution writes:
Me again! I have tested out the egg on my old PSR-320 - it works on this one aswell! Hold the top 2 keys, and turn it on... If you hold down the Accomp Freeze button while pressing others, it enters an EXTENDED test mode, where you can test the voltage!!! I'll check my Yamaha PSR-D1 (DJX).
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lukehutton writes:
I have a PSR-160 (very new) and it doesn't work. Can anybody help?
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I've got two old Yamaha Keyboards. One is a Yamaha PSS-190, the other is a PSS-180. I came across that like... oooh, say 2 years after I got them (around 1995). It is kinda funny, but it would have been neater if there were more options in that mode... --Justice Running Wild
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MrMathers writes:
Couldn't there be more? Most of them are the same, the ones at the end are the better ones. Oh and this is an engineer test, even though it has already been said!
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Squhas writes:
On the latest psr models (psr 530, 630 and etc.) you can press and hold C# chord (C2#; F2; G2#) and turn the keyboard on. Then you can enjoy the self test of your keyboard :)
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I tried this on my PSR-75, and you have to hold down the bottom two naturals. (the white keys)
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tsomy writes:
Real cool, and there are two nice things: - works with PSR 200 too (so i think works with the PSR series too) - the function buttons (example: the number buttons, but all the others except power) make sound too, not only the keyboard keys.
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Silver Blade writes:
This is pretty humorous - works on PSR 520 (top two keys hold down) and you can turn the backlight on and off n stuff. Gr8... Is it useful to me? Don't think so. I remember the music classes at school where we'd leave a keyboard on in that mode wailing away but with the volume just noticeable :op
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T-zone writes:
Does anyone know how to get this to work on a PSR 260? I can't seem to get it... I tried the C chord, C# chord, top two, and bottom two keys... Does anybody know how to get it on the PSR 260?
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Adam writes:
I have tried it on my PSR-195, but nothing seems to happen. I tried every set of adjacent keys that there is. :(
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diamond19 writes:
This doesn't seem to work on my PSR-2, if anyone can help me please do.
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Suntoucher writes:
I tried it out on my rather ancient PSR-100 and got nothing - i tried all the methods listed...maybe they hadnt thought of a test mode back in 1902 or whenever my keyboard was made!
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blowfish666 writes:
I have an old PSR-28 (bought around 1995) and I can't seem to get this working. Anyone else who has this and has it working please tell me!
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npd writes:
I can't believe it! The one electric piano I wanted, the PSR 260, is the one where i cant get the secret mode!
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Eeggster writes:
It works on my PSR-73. I held down the last two white keys and turned it on. When you press any of the buttons it makes a beep sound, but each button's tone is unique. If you want to hear the keys going up by one semi-tone each time, press them in this order: 1,2,3,4,5,6,7,8,9,-,0,+,Tempo-,Tempo+,Voice,Style,Sync-Start/Fill in,One touch,Start/Stop,Minus One,Song. Was that helpful? Thought not...
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cheaterboy writes:
The PSR 540 has two test modes that I can find: - C#2 F2 G#2 - gives you a list of tests you can run by selecting them with +/- and pressing start/stop to begin or stop a test. - C#3 F3 G#3 - automatically runs through a list of tests.
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Won't work on the PSS-09 through. Shame!
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DaVince writes:
Is there such a test mode for the Casio CTK-451? If so please tell me!
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pakke writes:
I has tried at a yamaha PSS (not sure what it really named) But only came on dispay in order 1, 2, 3, 3D then if I pressed many buttons it turned itself off. Can anyone explain what it numer och word 3D means?
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cheaterboy writes:
Does anyone know if this exists on the Tyros/Tyros 2 models? I recently got a Tyros 2!
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Does it work on the Yamaha DGX-205?
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maxmaxmax writes:
anyone know how to do this on a yamaha pss 560?
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msal writes:
I tested C2#, F2 and G2# test chords on my PSR-2000 but only C2# worked out.
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Aly writes:
So, I own a Yamaha PSR-47 and I was able to boot it in test mode... a lot of 8s on the display at first, so I restarted it and then it started cycling through 0-3d on the voice display but no sounds. I used the upper two naturals, I'm going to try some other things but does anyone know how to get the actual sound to work? Volume's on (duh) and it's a properly working machine.
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Tim writes:
Just to confirm, this works on the PSS-780 - top two white keys while turning the power on. In Test mode, the only button that still works as normal is "Stereo Chorus" - all the other buttons make sounds and/or patterns on the LED display. I also discovered this myself shortly after I got the keyboard for Christmas back in 1989 :-)
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