KAWAI M8000 spares

[Art60]

Hi all,

Just another newbie, yes

This is not explicitly written in the forum title but I'm afraid you only deal with guitars, don't you?

Anyway, some of you may have seen a broken Kawai M8000 midi master keyboard somewhere in a recording studio back closet

I bought mine already totally unusable, I changed its microprocessor, its memory chip, the battery, it works, but not at 100% .
I got the schematics but I can't figure out of to solve the last problems (power up configuration is always messy).

So, if anyone saw a broken one and could be as kind to sell me its main Printed Circuit Board, I surely be one of the happiest man on earth.

Please spread the word.

Thank you very much in advance.

Regards,
Arthur.

[Jazz P Bass]

Can you post the schematic?

[Art60]

Hi,
Thanks for stopping by

Unfortunately, it's an original schematics book (you know onr of these paper things) and it's about a hundred pages, some of them are spread over 4 pages wide.
If a precise section could help you in help me, please tell me where to begin to scan

Thx !

[Art60]

The microprocessor part

Here is an excerpt, the main one, the one I think is faulty.

I don't have an emulator, so I think I'll have to reverse engineer the ROM chip in order to bypass some of the functions I don't need and set some values where they lack.

Thanks for throwing a bit of an eye on my schematics

regards,
Arthur.

[Arjan]

Hi Arthur. I have got one, b3# failing, the rest working fine.

[Art60]

Nice!

Hi Arthur. I have got one, b3# failing, the rest working fine.

Hi Arjan,
thank you very much for your answer.
I think I missed something because I didn't receive any alert for your post.
That's a pity because several monthes passed since then.

Where are you from ?
As I think you're not living in France, may I ask you if you'd be kind enough to sell the main circuit board only, if you wish to.

Thank you.
Art.