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Thanks. It turns out there's no place to get US dumps or chips ? Very strange and frustrating. I thought there are more US versions of the keyboard are available. Japanese seemed to be rather rare.

See also: /g/xpantastic/files/Software Tiitu

Hi, It was me who dumped h thee Jap .Matrix 12 EPROMs and gave em to the web No, the CPU board was redisgned for the Jap version . They are similar but not identical You can still try to put the jap

Sorry for a little bit of offtop. But I did not find the right particular topic for my question. So to my view this topic looks like a proper place to ask. Will

Not a Matrix 12 expert but I took a quick look at the schematics. This looks to me like a way to give the factory the flexibility to either use 6116 or 6264 IC's, depending on which are easier

Hello. My question is regarding Matrix 12 RAM chips. On CPU board there are RAM0, RAM1, RAM2, RAM3 chips. Usually they are 6116 (2x8) in every Matrix 12 guts that I've seen. (Xpander states 3 x 6264.)

Mine tunes when I disconnect the earth/ground wire at the power socket.

Hi, here's my 5 cents: -sorry, but full recapping is bullshit vodoo for people with too much money or time. Blind actionism can not compensate for a lack of expertise. - in my long term experience in

Hi Karl and Stefano ! I had similar s##t w/ a voice, thought it would be the CEM 3372 or 3374 or an electrolytic cap,- and at the end it was a cheapo opamp (TL 074 or similar IIRC while typing from my

Hello Stefano, Sorry that did not fix it. If you could lay your hands on a voltmeter I would check the power supply voltages in the voice with problems. You could have a bypass capacitor in that

Hi Karl, I’ve finally replaced the C249, unfortunately the problem is still present. Every test on voice 6 fails. The FAIL label appear just after my Xpander start to test this voice, for each

Hi Stefano, Yes your right, I could not remember the voltage rating and looked it up in the service manual. It is listed there as 25V But actual production values are 50V Which is fine. A 50 Volt will

Hello Karl! Thank you for your kind reply and you detailed description. My Xpander was never serviced so I think that the problem could be a capacitor. I’m quite expert in soldering, so I can

Hello Stefano, The good news is, it’s probably just a capacitor, the bad news is you must unsolder and replace a component on the voice circuit board. If you don’t feel comfortable soldering on a

Hi everyone! Unfortunately I’m writing here because my Xpander has some problem. Every test on voice 6 fails. VCO, PW, RES, VCF and VCA. So I suppose it’s not a CEM problem because it would fail

Agree very much with what Dave said. Didn't even know there was a place that sells replacement power supplies... Luckily mine seems to be fine. A while ago there was a thread about getting replacement

i'll second that Crispy! this group has been an invalueable source of information from a technical standpoint and of support from fellow Xpander / Matrix-12 owners! for any advice or questions that

Thanks to everyone involved in the move! :D

Definitely, and presumably they can import all the old messages with the correct timestamps etc. which I can't see how you'd do manually. Thanks for taking this on for us Tiitu! Cheers, John :^P

Unfortunately you were right, John, but time is money too! Tiitu