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Re: Autotune failure!
Hello takisdamaschis, When you say output capacitors, are you talking about the small 2.2uF Cx49 at the edge of the voice board? There is one for each voice. There is also one of these at the output
By Karl Schmeer · #549 ·
Re: Faster envelopes on Matrix 12/Xpander - Conversation with one of the designers
Wow, I?m personally not "obsessed" with faster envelopes on my Matrix 12, I rather get reminded of it whenever I play it, don?t need a scope for that. It?s so fxxing great, but would be even
By analogholic <publik@...> · #548 ·
Re: Faster envelopes on Matrix 12/Xpander - Conversation with one of the designers
I personally do not understand this general obsession with making One does not need a scope to experience the slow envelopes on the Xpander, it is plainly audible. The same goes for the OB8.
By TC · #547 ·
Re: Faster envelopes on Matrix 12/Xpander - Conversation with one of the designers
BTW I know a guy who has the source code for the Xpander, if anyone is bored and wants to rewrite the OS over a weekend. ;-) (I don't think he wants to give it away though) There was talk that Neil
By TC · #546 ·
Re: Faster envelopes on Matrix 12/Xpander - Conversation with one of the designers
+1 ! eggwheatis schrieb:
By PeWe · #545 ·
Re: Faster envelopes on Matrix 12/Xpander - Conversation with one of the designers
Hi ! I agree. If you speed up the CPU, all the software generated processes speed up too, not only the attack of envelopes. Eventually, if the envelopes become faster, isn?t it they will be shorter
By PeWe · #544 ·
Re: Faster envelopes on Matrix 12/Xpander - Conversation with one of the designers
It would not change anything adding a faster 6809 and upping the speed of the clocking circuit, you would have to change a lot more in the circuit to cope with the faster speeds.. it would also create
By eggwheatis <phil@...> · #543 ·
Re: Faster envelopes on Matrix 12/Xpander - Conversation with one of the designers
Hitachi makes pin & instruction compatible replacement for the 6809, but it's clock speed can go up to 3 or 4Mhz. The 6309 has some additional instructiuons that the 6809 does not have, but needs to
By TC · #542 ·
Autotune failure!
Hi everyone, my xpander seems to fail the VCO tune test randomly!some voices fail during one test and pass on the next! there is no cosistancy on the voices that fail,it can be any one of them!Some
By takisdamaschis <takisdamaschis@...> · #541 ·
Faster envelopes on Matrix 12/Xpander - Conversation with one of the designers
Hi everyone, When I read the "percussive like patches"-thread, I was reminded that I while ago (when the Matrix 12 was my only analog synth) that I (as many others) was a bit frustrated with the
By analogholic <publik@...> · #540 ·
Re: The Status of my Autotune & DAC Tests was Re: Re: It's official- my Xpander is sick
Nothing is ever posted on these sites, you have to call and tell them how many you want to buy. Even at $50-$100 a piece, it's better than letting a $1600 (or more) synth lay useless, if the part ever
By TC · #539 ·
The Status of my Autotune & DAC Tests was Re: Re: It's official- my Xpander is sick
Hello Randy, Sounds right to me. I was thinking of the times I have seen techs leave the synth plugged in and powered up to avoid dumping the memory. It takes guts but some guys do it. Best Regards
By Karl Schmeer · #538 ·
The Status of my Autotune & DAC Tests was Re: Re: It's official- my Xpander is sick
Hi Tony, --- In xpantastic@... <mailto:xpantastic@...> , "Tony Cappellini" <cappy2112@...> What was the cost per part? I have a problem every once in a while (well, more and
By Karl Schmeer · #537 ·
Re: The Status of my Autotune & DAC Tests was Re: Re: It's official- my Xpander is sick
If your xpander is not plugged into anything (e.g. the wall) while unsoldering the battery, I it shouldn't matter if the iron is grounded or not because there will be no circuit to complete!? Just
By randycason102 · #536 ·
Re: The Status of my Autotune & DAC Tests was Re: Re: It's official- my Xpander is sick
The Service manual reads that this should be 4.4 V with power on, and 2.xV with power off. With power off, the voltage reading is correct. I will probably change the battery too, since it's been about
By TC · #535 ·
The Status of my Autotune & DAC Tests was Re: Re: It's official- my Xpander is sick
Thanks Phillipe, You are too kind. Truth is, You fixed it by doing all the heavy lifting(real work). I just made some suggestions. Glad I Could Help Karl wrote:
By Karl Schmeer · #534 ·
The Status of my Autotune & DAC Tests was Re: Re: It's official- my Xpander is sick
Hi Tony, Have been out of pocket for a few days ( building a parade float). Back now. wrote: 6.6 V seems very strange for the memory power supply. The battary might need changing. If you are
By Karl Schmeer · #533 ·
My Xpander horror story
In 1998 or so, I bought my Xpander sight unseen from a guy in Southern California. I was living in San Jose at the time, about 6 hours away by car. (someone gave me a tip and I followed up on it). I
By TC · #532 ·
Re: The Status of my Autotune & DAC Tests was Re: Re: It's official- my Xpander is sick
Karl, I went through all the DC voltmeter measurements in the service manuel. Everything looks good (to me) except for Step 3, +5M text. On the right side of D4 (as I am facing the Processor Board,
By TC · #531 ·
Re: The Status of my Autotune & DAC Tests was Re: Re: It's official- my Xpander is sick
By TC · #530 ·