Re: [PolySix] Re: polysix still no sound
2014-11-22 by mpe1969@tpg.com.au
I had a look at the contacts today. The problem is the rubbers. I have bought some conductive paint to try. If this fails I will go for the replacement disk
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Re: [PolySix] Re: polysix still no sound
2014-11-21 by Bob Grieb
I think a few keys may have worked on mine when I got it but not many. If you can short rows to columns and get notes, then the key contacts are not working.
Re: [PolySix] Re: polysix still no sound
2014-11-21 by Chromatest J. Pantsmaker
You can also clean the contacts on the circuit board with some alcohol. If things are really tough, gently use a pink pencil eraser. You can try taking a
Re: [PolySix] Re: polysix still no sound
2014-11-21 by <backshall1@bellsouth.net>
Don’t forget that Bob Weigel at sounddoctorin.com still has some stick-on carbon dots for sale. Not cheap, but a lot less messy than painting conductive goop
Re: polysix still no sound
2014-11-21 by mpe1969@tpg.com.au
Thanks. I ve been looking at the schem. I assume the key scanning is working correctly. Eg the appegiator would not work. Is it very common for all key
Re: [PolySix] Re: polysix still no sound
2014-11-21 by Bob Grieb
Actually, they may need more than cleaning.On my P6, cleaning did not bring the dead keys back.The carbon pills on the rubber dome part of the contactshad lost
Re: polysix still no sound
2014-11-21 by mpe1969@tpg.com.au
Thanks I ll have a look at it this weekend.
Re: polysix still no sound
2014-11-21 by swamp.gigs@googlemail.com
Yep - pretty much sounds like the key contacts need cleaning...
Re: polysix still no sound
2014-11-21 by mpe1969@tpg.com.au
ps I have just tested shorting the pins on the keyboard connector (klm366) and all my voices work (lads light up) I managed to leave arpegiator on and was able
polysix still no sound
2014-11-21 by mpe1969@tpg.com.au
Hello, this is my first message here, I have finally got my klm367 working. All bank/ patch buttons work. I was able to load factory default sounds (less lit
Re: [PolySix] Arpeggiator Timing - Slight Irregularities?
2014-11-16 by chipaudette@yahoo.com
If you felt like replacing the Arpeggiator s microprocessor (which is also the Key Scanning and Voice Assigner microprocessor), you can do it with an Arduino.
Re: [PolySix] Arpeggiator Timing - Slight Irregularities?
2014-11-15 by Bob Grieb
I already have a PIC design that replaces the key assigner and addsMIDI, but it s based on the Korg code, and seems to have the same delayas the original MCU,
Re: [PolySix] Arpeggiator Timing - Slight Irregularities?
2014-11-15 by jim@saltlands.com
Alrighty, so it is what it is I suppose. I guess a long winded solution would be fully replacing the arp system with a custom designed version such as an
Re: [PolySix] Arpeggiator Timing - Slight Irregularities?
2014-11-15 by Bob Grieb
The arpeggiator is code inside the key assigner. An interrupt signal is generated by an edge either on the remote trigger or the oscillator on the front
Arpeggiator Timing - Slight Irregularities?
2014-11-15 by jim@saltlands.com
Anyone ever experience any slight timing issues with the polysix arpeggiator? Usually for me it only occurs when i have the arp in full range setting of 2
VR Trimmers on KLM366 board
2014-11-13 by tomorrowstops@yahoo.com
Anyone have an idea as to where I can source a couple of these trimmers? I busted a couple while drilling a hole for a midi jack. Lesson learned! Also looking
Re: [PolySix] Clone revisited
2014-11-11 by <backshall1@bellsouth.net>
That kind of instability on a new clone board is usually caused by an erratic clock. If you used 10pf and 22pf capacitors for C5 and C6 near the 6MHz ceramic
Re: [PolySix] Clone revisited
2014-11-10 by Dennis Matana
Search the group with the word clone or KLM367...you will find your answers http://soundcloud.com/wifiwww.facebook.com/matanateknik
Clone revisited
2014-11-10 by riccorman@me.com
I purchased a clone board a few years ago and built it. The build went very smoothly; I have done quite a bit of synth DIY and I didn t have any problems with
Re: [PolySix] Voice board calibration
2014-11-08 by Bob Grieb
Hi, For the pitch tuning, if the anti-log converter adjustmentshave been messed with, you would want to fix that up. But I would check it first. Maybe
Re: [PolySix] Polysix Service Manual Error list
2014-11-07 by <backshall1@bellsouth.net>
Here’s a list I posted here back in July 2012. I still don’t know if it is complete. 1) On IC30,31, pin 5 in connected to +5v, not pin 4. 2) IC30 ground
Voice board calibration
2014-11-07 by f115@rocketmail.com
Once I got my clone board working on the Polysix I discovered that nearly every trimpot on the KLM-366 has been adjusted in some way. I ve made a reasonable
Polysix Service Manual Error list
2014-11-07 by f115@rocketmail.com
Hey again everyone! Is there a list of known errors in the service manual that anyone has posted? I d like to mark up my copy. I ve periodically read that
Re: [PolySix] Re: Clone - MG always on by default
2014-11-03 by Dennis Matana
cool thnx for sharing the solution! http://soundcloud.com/wifiwww.facebook.com/matanateknik On
Re: [PolySix] Re: Clone - MG always on by default
2014-11-01 by Jed Jorgensen
Great job! On Nov 1, 2014 8:32 AM, f115@rocketmail.com [PolySix]
Re: [PolySix] Re: Clone - MG always on by default
2014-11-01 by f115@rocketmail.com
Hi everyone - Monumental update! It s all resolved. I found and repaired the cutoff issue. It was simply trace damage in the PCB right at C26. I bridged it
Re: [PolySix] Refurb VS Replace P6 Power Supply - strange high pitch issue
2014-10-28 by Chromatest J. Pantsmaker
You ll see decoupling caps (the values can vary) right around the ICs. If you have a noisy power supply, you re arsed to begin with. An incredible range of
Re: [PolySix] Refurb VS Replace P6 Power Supply - strange high pitch issue
2014-10-28 by jim@saltlands.com
here at old crow s site, http://www.oldcrows.net/~oldcrow/synth/tips.txt http://www.oldcrows.net/~oldcrow/synth/tips.txt he discusses at pretty good length the
Cut traces - Factory Mod?
2014-10-28 by jim@saltlands.com
Just poking around about polysix grounding issues and found this below… Anyone noticed they have cut traces? I don t have them in mine. I do have a minor and
Re: [PolySix] Refurb VS Replace P6 Power Supply - strange high pitch issue
2014-10-28 by Chromatest J. Pantsmaker
A recap could never hurt... Do the calibration after. On Mon, Oct 27, 2014 at 1:19 PM, jim@saltlands.com [PolySix]
Refurb VS Replace P6 Power Supply - strange high pitch issue
2014-10-27 by jim@saltlands.com
Obviously cost is the idea behind this, but just wondering if a simple recap or power supply section would help with noise.. AND also help to eliminate a
Re: Kiwi Power Supply for non-Kiwi Polysix?
2014-10-25 by feline1@feline1.co.uk
Subject: Re: Kiwi Power Supply for non-Kiwi Polysix? Yep, I got SynthProf to install the Kiwisix PSU board in my Polysix... I have the new KLM clone board and
Polysix KLM-367 clone board
2014-10-25 by Johannes Hausensteiner
Hi, It seems that you cannot easily nail down these issues, even with the help from the forum. If you want you can send me the board and I am going to fix it
Re: [PolySix] Re: Clone - MG always on by default
2014-10-24 by Bob Grieb
In manual mode you should be able to control the op amp buffer outputs by changing the front panel control. If that works, the the cpu is reading the cutoff
Re: [PolySix] Re: Clone - MG always on by default
2014-10-24 by Bob Grieb
Does the op amp on the klm367 that buffers the cutoff voltage from the S&H change when you change the front panel control?
Re: Kiwi Power Supply for non-Kiwi Polysix?
2014-10-24 by swamp.gigs@googlemail.com
Yes - provided you follow the grounding procedure...
Re: Kiwi Power Supply for non-Kiwi Polysix?
2014-10-24 by jim@saltlands.com
Great! Did it noticeably reduce noise? ... Hi, Yes - it works perfectly ! Obviously calibrate it tho ... Regards, Tony
Re: Kiwi Power Supply for non-Kiwi Polysix?
2014-10-24 by swamp.gigs@googlemail.com
Hi, Yes - it works perfectly ! Obviously calibrate it tho ... Regards, Tony
Kiwi Power Supply for non-Kiwi Polysix?
2014-10-24 by jim@saltlands.com
Hello all, Curious what everyone might think of this… Would it be safe to install the Kiwitechnics power supply upgrade if I m not using the KiwiSix board
Re: [PolySix] Re: Clone - MG always on by default
2014-10-24 by f115@rocketmail.com
Well I m afraid I haven t quite got the build right after all. I could really use the help. - MG is on for sure - Cutoff not working - I can t write to patch
Kiwisix tuning
2014-10-23 by cosmosandstardust@yahoo.com
Hi guys I installed the Kiwisix upgrade including the power supply upgrade for my Polysix. But not because of battery damage. But due to the MG going all
Re: [PolySix] Voice # 6 not staying in tune !!
2014-10-21 by jamieantonelli78@yahoo.com
Bob thank you so much for the info I have fowarded it to the tech that is working on the unit. I hope the problem can be solved. I will let you know.
Re: [PolySix] Re: Clone - MG always on by default
2014-10-19 by f115@rocketmail.com
Hey Jed! I didn t want to leave this thread hanging. Family commitments. Yeah, the nearly all the parts are new. I reused the usual parts like the headers and
Re: [PolySix] Re: Clone - MG always on by default
2014-10-17 by Jed Jorgensen
From what I can see it looks like a clean build. Are those old capacitors? So from your previous emails my understanding is that the MG is always on and does
Re: [PolySix] Re: Clone - MG always on by default
2014-10-17 by f115@rocketmail.com
No offence taken, Jed! Yeah I ve been doing this for a little while. I haven t ever tackled a board like this but I have quite a few synth restorations and
Re: [PolySix] Re: Clone - MG always on by default
2014-10-17 by Jed Jorgensen
Hmm. Okay. A couple questions: 1) How are your soldering skills? (Don t take this question personally, it s a big board and a lot of work.) On my own board a
Re: [PolySix] Re: Clone - MG always on by default
2014-10-17 by f115@rocketmail.com
My apologies, guys. I completely misread the reply. I switched the SK30A pins around. Still no change. I should mention that originally I had a 2N3819
Re: [PolySix] Re: Clone - MG always on by default
2014-10-16 by Jed Jorgensen
Thanks, Don. That is it exactly. You have transistor leg in the wrong hole. Look up the data sheet for the 2N3819 vs the SK30A if you are not following what
Re: [PolySix] Re: Clone - MG always on by default
2014-10-16 by <backshall1@bellsouth.net>
Have you understood what Jed said about pins being different between the clone board and the original? The clone board is designed for 2N3819 in T1 position,
Re: [PolySix] Re: Clone - MG always on by default
2014-10-15 by f115@rocketmail.com
Thanks Jed! Here s what I have: t1 SK30A-GR original pin1: fluctuating voltages pin2: fluctuating voltages pin3: 14.97V t2: 2N3906 new *: left side after r76