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Matrix-12 Owner's manual Supplement
Hi
I am a new member to this list. I am looking for the "Matrix-12 Owner's manual Supplement" (scans or PDF) that the Matrix-12 Owner's manual (first edition) mentions on page 21. It is supposed to show all the 59 pages and sub-pages for programming the Matrix-12: a Matrix 12 pages directory... I would like to emulate the Xpander or Matrix-12 programmer for my Matrix-6. Thank you very much. |
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Re: Xpanding my horizon
Hi Terje,
? Nice work on the M12. ? --- On Wed, 4/14/10, Terje Winther <terje.winther@...> wrote: - I found a strange repeating ripple of approx. 100 - 150 mV from theWhen I posted that, I should have stated low frequency (60 Hz) ripple usually seen with a voltmeter. If you are using a scope you will see lots of digital noise on the rails from the 30 Khz switching power supply output. ( 1/30 KHz = 30 uS ) I think this is what you are seeing. And it is normal and too high a frequency to be heard. I would be willing to bet the tuning errors are caused by the Coupling Caps at the output of each voice. 2.2 uF 50VDC is the value PC board reference number Cx49 ( x = Voice number). Not that recaping the power supply is a bad idea. It would be good in the long run, however the coupling caps are the more likely culprit. - The voice still missing puzzles me: I thought I traced the error toThat is strange. I do not know of anyone who has puchased from Tech Transplant, so I have no track record to work with there. some thoughts: Will a newly purchased 3372 work in one of the other voices? I supose there could still be something wrong with voice 6. Did you try retuning VCF/VCA's after changing out the part? In theory this would calibrate out any differences between individual chips. It does not make any sense that a newer/different date chip would not work at all. More likly there would be tracking errors or offsets. Best Luck Karl Schmeer |
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Re: Xpanding my horizon
Terje Winther
Hi all, and thanks for all the help regarding fixing the M12.
I am slowly progressing: - Now all voices, both 1-6 and 7-12 works (apart from one voice), but it still doesn?t tune properly. Massive sounds from 11 VCOs though :-) - I found a strange repeating ripple of approx. 100 - 150 mV from the power supply. It looks (on the scope) like two ripples rather close, then an interval, and then the two ripples repeat again, all microseconds apart. I?ve read in the archives that this could be enough to throw off the auto-tune process, so I better recap the power supply, right? There usual hum from the transformer is a bit loud, but I have heard many synths with loud transformers, so I am not going to do anything about that. - All keys work again, although some needs to be cleaned properly (they are intermittent) - All encoders work, but one is way too slow, so I probably need a complete new set of chips for that one - Still a few buttons that don?t work properly (I have to push repeatedly and/or hard to get it working), but I now know there is nothing electronically wrong, just a tired switch underneath. - The voice still missing puzzles me: I thought I traced the error to a broken CEM3372 (the filter part works, but the VCA part seems to be broken). So voice 6 is dead, but if I swap the CEM3372 between, say, voice 5 and 6, then voice 5 becomes dead and voice 6 starts working. So I got a fistful of CEM3372s (12 actually) from Technologytransplant, but they don?t work, or the M12 doesn?t like the fact that the "new" CEM is from another date stamp. Any ideas? - I also started cleaning the synth - following the tip to clean up the inside of the display window as well Terje Winther terje.winther@... |
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Re: M12 all 12 voices fail tuning...can I send anyone my PS board for recapping?
--- On Thu, 4/8/10, Epoxy2600 wrote: From: Epoxy2600 Subject: [xpantastic] M12 all 12 voices fail tuning...can I send anyone my PS board for recapping? To: xpantastic@... Date: Thursday, April 8, 2010, 1:06 PM ? Hi all, I recently picked up an M12 that has tuning probems. All 12 voices fail tuning. I've tried UNTUNE and re-tuning, as well as resetting the software (hold CLEAR on power-up and then YES) to no avail. When I manually turn on all the voices, 1-6 are way out of tune and 7-12 are silent. I'm hoping it's just that the power supply board needs recapping? I recall reading somewhere that global tuning issues are likely traced back to that. Currently my soldering tools and multimeter are not accessible, so I'm thinking easiest thing to do is just pull out the PS board and send it to be diagnosed and recapped if necessary. Much easier than packing up/shipping the whole synth! Would any of you who have an M12 be willing to perform this work for me? Of course I'd pay for bench time and parts. Or is such action premature? Anyone have suggestions as to other things for me to try? Like specific ICs I should try to reseat? Much thanks, Howie |
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M12 all 12 voices fail tuning...can I send anyone my PS board for recapping?
Hi all, I recently picked up an M12 that has tuning probems. All 12 voices fail tuning. I've tried UNTUNE and re-tuning, as well as resetting the software (hold CLEAR on power-up and then YES) to no avail. When I manually turn on all the voices, 1-6 are way out of tune and 7-12 are silent. I'm hoping it's just that the power supply board needs recapping? I recall reading somewhere that global tuning issues are likely traced back to that.
Currently my soldering tools and multimeter are not accessible, so I'm thinking easiest thing to do is just pull out the PS board and send it to be diagnosed and recapped if necessary. Much easier than packing up/shipping the whole synth! Would any of you who have an M12 be willing to perform this work for me? Of course I'd pay for bench time and parts. Or is such action premature? Anyone have suggestions as to other things for me to try? Like specific ICs I should try to reseat? Much thanks, Howie |
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Re: Matrix-12 PSU problem
Hi Karl,
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Thanks for the advice, I'll probably open her up someday next week and see if there's any damage or anything out of place. Don't suppose you know where i could find a schematic for the PSU by any chance? I've an Xp service manual handy but would prefere to work off the schematics for the 12 just for proper reference. Thanks again - Dave --- In xpantastic@..., Karl Schmeer <shire03@...> wrote:
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Re: Matrix-12 PSU problem
--- On Thu, 4/1/10, David in swords wrote:
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Matrix-12 PSU problem
I was wondering if anyone could shed some light here?
recently (within the last month or so ) my M12 has been flicking itself on and off for very short periods of time, thought it was a bit strange but decided to see if the problem persisted,and hey presto,after being powered up earlier today for a while i returned to find it 'off'... the power switch was still on and the light in the switch itself was still lighting,all displays and led's were off tho. after power cycling, my power switch light was still on and again all displays were off. I know that the PSU's can get a bit shaken in the 12's and Xp's after a while, I have my suspicions that the slo-blo fuse may need replacing in the PSU? im kinda hoping that it is the fuse,as it would be a simple job i could do myself. would love to hear your thoughts,or if some1 has has similar experience / success with this. Dave |
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Re: Stuck note / tunings fail
Hi Chase,
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Glad everything is okay. And thanks for posting back about the fix. Class act, you are! I will add this to my fail log, in case the same kind of symptoms show up again. (I don't keep track of the names btw, just the problem and the fix.) Best Regards Karl Schmeer --- On Mon, 3/15/10, Chase Smith <plus_321@...> wrote:
From: Chase Smith <plus_321@...> Subject: Re: [xpantastic] Stuck note / tunings fail To: xpantastic@... Date: Monday, March 15, 2010, 8:51 PM ? I'm sorry, but I made a really stupid mistake here.? When I was working on the song, I ran out of channels on my mixer so I plugged into where I would usually have my pc stereo out (channels 23 and 24).? I had never used these channels in this configuration for synths, but I had wired them with XLRs instead of 1/4" so I could use the preamps if I needed them. Well, I either accidentally flipped the switch for phantom power or it was on the whole time and the computer didn't mind.? So the Xpander was freaking out because it was getting something like 46 V at the output which it obviously didn't like.? It's kind of embarrassing to admit this, but I'm just happy that there are not major issues here.? Again, thanks a lot for taking the time to read my emails and help me out. Thanks, Chase Smith From: Karl Schmeer <shire03@sbcglobal. net> To: xpantastic@yahoogro ups.com Sent: Mon, March 15, 2010 2:27:12 AM Subject: Re: [xpantastic] Stuck note / tunings fail ? Hi Chase, ? ? ?strange.? It will tune them, but as soon as a plug in a cable for theAhhh, a good clue, Is the mixer / CV generator plugged into the same power outlet as the Xpander. You could have a ground loop problem. Other possibilities: The mixer could have a problem. But that seems unlikly. A more likly? situation is the cable has a short in it and plugging it in shorts the outputs to ground. What are you plugging into the CV jacks? This pedel or midi/CV device might have a ground problem or overvoltage for that matter. Before plugging the mixer or CV generator in to the Xpander again I would get a Voltmeter and check the tip and ring of the cable. Check for shorts, and continuity to ground.? This could be a loose ground connection inside the Xpander. All the problems (now) seem to revolve around the potentiometer display board. Now reseat the chips and check cables on that board. Also look closly at where the jacks are soldered into the circuit board. A loose solder connection here could also cause the symptoms you describe. If you have a soldering Iron, you could reflow the solder on all the output and CV jacks.? ? Also, maybe worthy of note is that whenever I turn it on and it doesn't >tune, I can tell as soon as I turn it on because it sort of pops and >makes a sound like a machine starting up or a computer being turned on.? >It is usually pretty quiet when I turn it on.If a malfucntioning cable, or device is plugged into the Xpander when you turn it on, this makes sense. If not I think you may have a power supply problem. I know you said it was recently re-capped but (sorry) that is the most likly.? I am hoping this information is characteristic of a problem you have seen >before.? I have no trouble replacing components, but my diagnosing skills >are limited.?These exact symptoms are new for me. However anytime chips can randomly come loose from the sockets, symptoms can be strange. I have seen other things behave badly ( freaking out when something is plugged into it)? ? And it is almost always a ground problem. Anyway try these things, let me know : - ) Best Luck Karl Schmeer --- On Mon, 3/15/10, Chase Smith <plus_321@yahoo. com> wrote: From: Chase Smith <plus_321@yahoo. com> Subject: Re: [xpantastic] Stuck note / tunings fail To: xpantastic@yahoogro ups.com Date: Monday, March 15, 2010, 1:07 AM ? Thanks a lot for helping me out here, I really appreciate it. I opened it up and press on all the socketed ICs and reseated the connecting cables.? After I did this I was able to get it to tune all voices, but it's really strange.? It will tune them, but as soon as a plug in a cable for the voices or cvs, it will fail the tunings (this was in multimode). It was off for while and I just turned it on and plugged in the main LR cables and put it in single mode and it is passing all tunings and seems to work fine as a poly synth. However, whenever I plug into any of the voice outputs, the pitch and amplitude seem to be glitchy for all of them.? It's like they are being modulated randomly (it kind of reminds me of how the pitch would waiver before I recapped the PS).? The output of the master is fine though.? Also, maybe worthy of note is that whenever I turn it on and it doesn't tune, I can tell as soon as I turn it on because it sort of pops and makes a sound like a machine starting up or a computer being turned on.? It is usually pretty quiet when I turn it on. I am hoping this information is characteristic of a problem you have seen before.? I have no trouble replacing components, but my diagnosing skills are limited.? Thank You, Chase Smith From: Karl Schmeer <shire03@sbcglobal. net> To: xpantastic@yahoogro ups.com Sent: Sun, March 14, 2010 10:06:15 PM Subject: Re: [xpantastic] Stuck note / tunings fail Hi Chase, ? Sounds like the?final VCA is stuck open.? For all voices if in mono keybooard mode. You may have tried this, but ? What happens when you change patches? Same issue? Is the Xpander keyboard mode set to mono? If so what?happens when you change keyboard modes? ? Check the VCF/VCA page. and?make sure?the?final VCA is turned all the way down, and all modulations are turned off or down. ? If it's not the above, then reason dictates a hardware problem.? This may be as simple as opening up the Xpander and reseating the IC's, on the analog board. All chips are in sockets and this is easily acomplished. Just push on them all, to make sure none have come loose. While your at it check to make sure all connectors are Try these things and see if it helps. Let me know what you find, and we can go from there. ? Best Luck ? Karl Schmeer ? ? ? --- On Sun, 3/14/10, plus_321 <plus_321@yahoo. com> wrote: From: plus_321 <plus_321@yahoo. com> Subject: [xpantastic] Stuck note / tunings fail To: xpantastic@yahoogro ups.com Date: Sunday, March 14, 2010, 8:51 PM ? I powered down my xpander and it was working perfectly (pass every tuning all the time after I recapped the ps years ago). I turn it on a few minutes ago and it behaves like there is a note stuck. Playing midi notes will change the note that I hear. Also all tunings fail. I tried a system reset, it did nothing. I tried to change the pedal stuff, but it did nothing. I'm really hoping someone has an idea of what this is. I really want to finish the song I was working on and I kind of need this instrument. Thank You, Chase Smith ------------ --------- --------- ------ Yahoo! Groups Links |
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Re: Stuck note / tunings fail
You are very lucky that you didnt burn anything !
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Thats why you should use a DI ! WT ----- Original Message -----
From: "Chase Smith" <plus_321@...> To: <xpantastic@...> Sent: Tuesday, March 16, 2010 2:51 AM Subject: Re: [xpantastic] Stuck note / tunings fail I'm sorry, but I made a really stupid mistake here. When I was working on the song, I ran out of channels on my mixer so I plugged into where I would usually have my pc stereo out (channels 23 and 24). I had never used these channels in this configuration for synths, but I had wired them with XLRs instead of 1/4" so I could use the preamps if I needed them. Well, I either accidentally flipped the switch for phantom power or it was on the whole time and the computer didn't mind. So the Xpander was freaking out because it was getting something like 46 V at the output which it obviously didn't like. |
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Re: Stuck note / tunings fail
Chase Smith
I'm sorry, but I made a really stupid mistake here.? When I was working on the song, I ran out of channels on my mixer so I plugged into where I would usually have my pc stereo out (channels 23 and 24).? I had never used these channels in this configuration for synths, but I had wired them with XLRs instead of 1/4" so I could use the preamps if I needed them. Well, I either accidentally flipped the switch for phantom power or it was on the whole time and the computer didn't mind.? So the Xpander was freaking out because it was getting something like 46 V at the output which it obviously didn't like.? It's kind of embarrassing to admit this, but I'm just happy that there are not major issues here.? Again, thanks a lot for taking the time to read my emails and help me out. Thanks, Chase Smith From: Karl Schmeer To: xpantastic@... Sent: Mon, March 15, 2010 2:27:12 AM Subject: Re: [xpantastic] Stuck note / tunings fail ? Hi Chase, ? ? >?strange.? It will tune them, but as soon as a plug in a cable for the > voices or cvs, it will fail the tunings (this was in multimode). Ahhh, a good clue, Is the mixer / CV generator plugged into the same power outlet as the Xpander. You could have a ground loop problem. Other possibilities: The mixer could have a problem. But that seems unlikly. A more likly? situation is the cable has a short in it and plugging it in shorts the outputs to ground. What are you plugging into the CV jacks? This pedel or midi/CV device might have a ground problem or overvoltage for that matter. Before plugging the mixer or CV generator in to the Xpander again I would get a Voltmeter and check the tip and ring of the cable. Check for shorts, and continuity to ground.? This could be a loose ground connection inside the Xpander. All the problems (now) seem to revolve around the potentiometer display board. Now reseat the chips and check cables on that board. Also look closly at where the jacks are soldered into the circuit board. A loose solder connection here could also cause the symptoms you describe. If you have a soldering Iron, you could reflow the solder on all the output and CV jacks.? ? >Also, maybe worthy of note is that whenever I turn it on and it doesn't >tune, I can tell as soon as I turn it on because it sort of pops and >makes a sound like a machine starting up or a computer being turned on.? >It is usually pretty quiet when I turn it on. If a malfucntioning cable, or device is plugged into the Xpander when you turn it on, this makes sense. If not I think you may have a power supply problem. I know you said it was recently re-capped but (sorry) that is the most likly.? >I am hoping this information is characteristic of a problem you have seen >before.? I have no trouble replacing components, but my diagnosing skills >are limited.? These exact symptoms are new for me. However anytime chips can randomly come loose from the sockets, symptoms can be strange. I have seen other things behave badly ( freaking out when something is plugged into it)? ? And it is almost always a ground problem. Anyway try these things, let me know : - ) Best Luck Karl Schmeer --- On Mon, 3/15/10, Chase Smith <plus_321@...> wrote: From: Chase Smith <plus_321@...> Subject: Re: [xpantastic] Stuck note / tunings fail To: xpantastic@... Date: Monday, March 15, 2010, 1:07 AM ? Thanks a lot for helping me out here, I really appreciate it. I opened it up and press on all the socketed ICs and reseated the connecting cables.? After I did this I was able to get it to tune all voices, but it's really strange.? It will tune them, but as soon as a plug in a cable for the voices or cvs, it will fail the tunings (this was in multimode). It was off for while and I just turned it on and plugged in the main LR cables and put it in single mode and it is passing all tunings and seems to work fine as a poly synth. However, whenever I plug into any of the voice outputs, the pitch and amplitude seem to be glitchy for all of them.? It's like they are being modulated randomly (it kind of reminds me of how the pitch would waiver before I recapped the PS).? The output of the master is fine though.? Also, maybe worthy of note is that whenever I turn it on and it doesn't tune, I can tell as soon as I turn it on because it sort of pops and makes a sound like a machine starting up or a computer being turned on.? It is usually pretty quiet when I turn it on. I am hoping this information is characteristic of a problem you have seen before.? I have no trouble replacing components, but my diagnosing skills are limited.? Thank You, Chase Smith From: Karl Schmeer To: xpantastic@yahoogro Sent: Sun, March 14, 2010 10:06:15 PM Subject: Re: [xpantastic] Stuck note / tunings fail Hi Chase, ? Sounds like the?final VCA is stuck open.? For all voices if in mono keybooard mode. You may have tried this, but ? What happens when you change patches? Same issue? Is the Xpander keyboard mode set to mono? If so what?happens when you change keyboard modes? ? Check the VCF/VCA page. and?make sure?the?final VCA is turned all the way down, and all modulations are turned off or down. ? If it's not the above, then reason dictates a hardware problem.? This may be as simple as opening up the Xpander and reseating the IC's, on the analog board. All chips are in sockets and this is easily acomplished. Just push on them all, to make sure none have come loose. While your at it check to make sure all connectors are Try these things and see if it helps. Let me know what you find, and we can go from there. ? Best Luck ? Karl Schmeer ? ? ? --- On Sun, 3/14/10, plus_321 wrote: From: plus_321 Subject: [xpantastic] Stuck note / tunings fail To: xpantastic@yahoogro ups.com Date: Sunday, March 14, 2010, 8:51 PM ? I powered down my xpander and it was working perfectly (pass every tuning all the time after I recapped the ps years ago). I turn it on a few minutes ago and it behaves like there is a note stuck. Playing midi notes will change the note that I hear. Also all tunings fail. I tried a system reset, it did nothing. I tried to change the pedal stuff, but it did nothing. I'm really hoping someone has an idea of what this is. I really want to finish the song I was working on and I kind of need this instrument. Thank You, Chase Smith ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: ? ? <*> Your email settings: ? ? Individual Email | Traditional <*> To change settings online go to: ? ? ? ? (Yahoo! ID required) <*> To change settings via email: ? ? xpantastic-digest@... ? ? xpantastic-fullfeatured@... <*> To unsubscribe from this group, send an email to: ? ? xpantastic-unsubscribe@... <*> Your use of Yahoo! Groups is subject to: ? ? |
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Re: Stuck note / tunings fail
Hi Chase,
? ? ?strange. It will tune them, but as soon as a plug in a cable for theAhhh, a good clue, Is the mixer / CV generator plugged into the same power outlet as the Xpander. You could have a ground loop problem. Other possibilities: The mixer could have a problem. But that seems unlikly. A more likly situation is the cable has a short in it and plugging it in shorts the outputs to ground. What are you plugging into the CV jacks? This pedel or midi/CV device might have a ground problem or overvoltage for that matter. Before plugging the mixer or CV generator in to the Xpander again I would get a Voltmeter and check the tip and ring of the cable. Check for shorts, and continuity to ground. This could be a loose ground connection inside the Xpander. All the problems (now) seem to revolve around the potentiometer display board. Now reseat the chips and check cables on that board. Also look closly at where the jacks are soldered into the circuit board. A loose solder connection here could also cause the symptoms you describe. If you have a soldering Iron, you could reflow the solder on all the output and CV jacks. ? Also, maybe worthy of note is that whenever I turn it on and it doesn't >tune, I can tell as soon as I turn it on because it sort of pops and >makes a sound like a machine starting up or a computer being turned on. >It is usually pretty quiet when I turn it on.If a malfucntioning cable, or device is plugged into the Xpander when you turn it on, this makes sense. If not I think you may have a power supply problem. I know you said it was recently re-capped but (sorry) that is the most likly. I am hoping this information is characteristic of a problem you have seen >before. I have no trouble replacing components, but my diagnosing skills >are limited.These exact symptoms are new for me. However anytime chips can randomly come loose from the sockets, symptoms can be strange. I have seen other things behave badly ( freaking out when something is plugged into it) And it is almost always a ground problem. Anyway try these things, let me know : - ) Best Luck Karl Schmeer --- On Mon, 3/15/10, Chase Smith <plus_321@...> wrote: From: Chase Smith <plus_321@...> Subject: Re: [xpantastic] Stuck note / tunings fail To: xpantastic@... Date: Monday, March 15, 2010, 1:07 AM ? Thanks a lot for helping me out here, I really appreciate it. I opened it up and press on all the socketed ICs and reseated the connecting cables.? After I did this I was able to get it to tune all voices, but it's really strange.? It will tune them, but as soon as a plug in a cable for the voices or cvs, it will fail the tunings (this was in multimode). It was off for while and I just turned it on and plugged in the main LR cables and put it in single mode and it is passing all tunings and seems to work fine as a poly synth. However, whenever I plug into any of the voice outputs, the pitch and amplitude seem to be glitchy for all of them.? It's like they are being modulated randomly (it kind of reminds me of how the pitch would waiver before I recapped the PS).? The output of the master is fine though.? Also, maybe worthy of note is that whenever I turn it on and it doesn't tune, I can tell as soon as I turn it on because it sort of pops and makes a sound like a machine starting up or a computer being turned on.? It is usually pretty quiet when I turn it on. I am hoping this information is characteristic of a problem you have seen before.? I have no trouble replacing components, but my diagnosing skills are limited.? Thank You, Chase Smith From: Karl Schmeer <shire03@sbcglobal. net> To: xpantastic@yahoogro ups.com Sent: Sun, March 14, 2010 10:06:15 PM Subject: Re: [xpantastic] Stuck note / tunings fail Hi Chase, ? Sounds like the?final VCA is stuck open.? For all voices if in mono keybooard mode. You may have tried this, but ? What happens when you change patches? Same issue? Is the Xpander keyboard mode set to mono? If so what?happens when you change keyboard modes? ? Check the VCF/VCA page. and?make sure?the?final VCA is turned all the way down, and all modulations are turned off or down. ? If it's not the above, then reason dictates a hardware problem.? This may be as simple as opening up the Xpander and reseating the IC's, on the analog board. All chips are in sockets and this is easily acomplished. Just push on them all, to make sure none have come loose. While your at it check to make sure all connectors are Try these things and see if it helps. Let me know what you find, and we can go from there. ? Best Luck ? Karl Schmeer ? ? ? --- On Sun, 3/14/10, plus_321 <plus_321@yahoo. com> wrote: From: plus_321 <plus_321@yahoo. com> Subject: [xpantastic] Stuck note / tunings fail To: xpantastic@yahoogro ups.com Date: Sunday, March 14, 2010, 8:51 PM ? I powered down my xpander and it was working perfectly (pass every tuning all the time after I recapped the ps years ago). I turn it on a few minutes ago and it behaves like there is a note stuck. Playing midi notes will change the note that I hear. Also all tunings fail. I tried a system reset, it did nothing. I tried to change the pedal stuff, but it did nothing. I'm really hoping someone has an idea of what this is. I really want to finish the song I was working on and I kind of need this instrument. Thank You, Chase Smith |
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Re: Stuck note / tunings fail
Chase Smith
Thanks a lot for helping me out here, I really appreciate it. I opened it up and press on all the socketed ICs and reseated the connecting cables.? After I did this I was able to get it to tune all voices, but it's really strange.? It will tune them, but as soon as a plug in a cable for the voices or cvs, it will fail the tunings (this was in multimode). It was off for while and I just turned it on and plugged in the main LR cables and put it in single mode and it is passing all tunings and seems to work fine as a poly synth. However, whenever I plug into any of the voice outputs, the pitch and amplitude seem to be glitchy for all of them.? It's like they are being modulated randomly (it kind of reminds me of how the pitch would waiver before I recapped the PS).? The output of the master is fine though.? Also, maybe worthy of note is that whenever I turn it on and it doesn't tune, I can tell as soon as I turn it on because it sort of pops and makes a sound like a machine starting up or a computer being turned on.? It is usually pretty quiet when I turn it on. I am hoping this information is characteristic of a problem you have seen before.? I have no trouble replacing components, but my diagnosing skills are limited.? Thank You, Chase Smith From: Karl Schmeer To: xpantastic@... Sent: Sun, March 14, 2010 10:06:15 PM Subject: Re: [xpantastic] Stuck note / tunings fail
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