Author Topic: Hello from Lionel, France  (Read 766 times)

0 Members and 1 Guest are viewing this topic.

Offline Lionel N

Hello from Lionel, France
« on: May 30, 2022, 01:52:40 PM »

I'm now part of this forum, thank-you.

I few words about me : I'm about 50 y/o, I live in France, in Paris area. I work in the automotive field, especially in the infotainment systems. My interrests are in electronics, hardware, embedded systems programming. I'm also learning again the piano, on a Yamaha P-125. I bought a few days ago a PSS-A50, especially "for fun" but also in order to analyse the HW, and potentially to "mod" it.

I focussed on this PSS-A50 product because I read many interresting articles from @pjd, on his site (

I would like to contribute to the discussions about this, and especially share a piece of information, following my first investigations and prototyping on this PSS-A50 : This keyboard has stereo capabilities (the samples are in stereo), but unfortunately, the engineer only used/wired the left channel of the SWLL YMW830-V. They could save some cents on the cost of a dual OpAmp, using a dual instead of a quad.

I'll try to write something about this or to join @pjd : I wired the DACLPP/DACLMM and DACRPP/DACRMM outputs of the SWLL to an external active Low Pass filter with a basic LM324 and a few resistors/capacitors (same schematics as for PSS-F50, and... indeed, the sound is now a very audible stereo for all samples. (I'm dissapointed because the Motions Effects the programmed are not stereo).

Hope to write again soon,


[update] : I uploaded a video with sound. Have a look there :
« Last Edit: May 30, 2022, 10:30:40 PM by Lionel N »

Offline pjd

Re: Hello from Lionel, France
« Reply #1 on: May 30, 2022, 05:09:56 PM »
Wow, Lionel. Nice hack!

I’m traveling right now and will look inside, again, tomorrow.

Cool — pj

Offline Roger Brenizer

Re: Hello from Lionel, France
« Reply #2 on: May 31, 2022, 03:41:09 AM »
Hi Lionel,

Welcome to the forum and thank you for becoming a member.  I’m sure you'll learn a lot about your Yamaha products here on our forum, especially when collaborating with PJ.

You’ll want to be sure to visit the Home page and check out some of the tutorials you will find links to there.  The following link will take you to the Home page of the website:

Should you later decide to become a supporting member, which will include lifetime membership, other forum boards will become available to you, as well as a wealth of additional musical knowledge; however, there is absolutely no obligation to do so.  You may also use the following link to discover the full benefit of becoming a Supporting Member of the PSR Tutorial.,15536.0.html

You’ll also gain access to an Excel Song Index database, made available to supporting members by our good friend, Peter (XeeniX) and maintained by another good friend, Runner4Fun, which presently contains 107,570 song titles in 2,810 indexed books.  This index is updated often.

In lieu of making a donation only, you may also order any of the websites resources, which can be found at the following link:

Joe Waters updated “Supporting the PSR Tutorial”, on August 27, 2017, which can be found here:

We’re so glad you've decided to become a member and very happy you've decided to become a part of this great forum family.  If you have any questions, then please just ask.  Many of our members are always very willing to help you.
"Music Is My Life"
My best regards,

(The older I get...the better I used to be...LOL!!!)
Roger’s PSR Performer Page

Offline Amwilburn

Re: Hello from Lionel, France
« Reply #3 on: June 02, 2022, 11:00:55 PM »
Allo, Lionel! Comment allez vous?

Desole, je ne parle pas francais (pas encore. Mais, quand j'etais plus jeune, je peut parle un petit peu). J'ai cinquante ans aussi (actuallement, en plus un an)

I *used* to be somewhat fluent in French, but alas, it's been 30+ years since high school, and I've forgotten it all. Apologies in advance if I've gotten the genders of the words mixed up; that was the 1st bit of French to go. But on the plus side, my Mandarin and Cantonese have both improved :p

Welcome; your grasp of practical electronics is very impressive! Formidable!


Offline Lionel N

Re: Hello from Lionel, France
« Reply #4 on: June 03, 2022, 12:26:41 PM »
Hello Mark,
Bonjour Mark,

Thank-you for your nice message and for your efforts, writing in French.

A bientôt,

Offline Richard Kent

Re: Hello from Lionel, France
« Reply #5 on: June 24, 2022, 11:41:08 PM »
Welcome, Lionel.

Richard Kent
The following users thanked this post: Lionel N