Re: [PolySix] botched trace repair?
2007-11-14 by drfuzz@aol.com
I would suggest a new IC.. and a socket to plug it into. ... From: STEVEN PISTRICH To: PolySix@yahoogroups.com Sent: Wed, 14 Nov 2007
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Re: [PolySix] botched trace repair?
2007-11-14 by STEVEN PISTRICH
YES, i scraped out the old traces (about 5), even under the IC31, then replaced the Ic31.... But now that more of the LED s stay on, im more confidant that
Re: [PolySix] botched trace repair?
2007-11-14 by Chromatest J. Pantsmaker
Did you totally remove the bad traces, or did you just jump them with wire? The bad traces could still be shorting each other... ... -- .sig -Chromatest
botched trace repair?
2007-11-14 by spistrich
well i tried to replace IC 31 and a couple questionably corroded traces by jumping wires point to point. This was to to solve my polysixes problem of multiple
Re: polysix -- What does IC 31 on KLM-367 do?
2007-11-09 by spistrich
... that ... be the ... know ... polysix s ... traces. ... `well, the reason im wondering about IC 31 is that in the repair exaple shown on the Old Crow synth
Re: [PolySix] polysix -- What does IC 31 on KLM-367 do?
2007-11-09 by klosmon
... Look at the schematic (and by the way, it s pretty much impossible to achieve any successful repairs on the P6 without referring to the schematics) -- ICs
Re: [PolySix] polysix -- What does IC 31 on KLM-367 do?
2007-11-09 by Chromatest J. Pantsmaker
It s probably the traces... unless the corrosion has leached into that chip. Personally, I ve not seen anything break inside a P6 other than the corrosion
polysix -- What does IC 31 on KLM-367 do?
2007-11-09 by spistrich
does anyone know what IC 31... on board klm-367 does? it would be the first chip to be damaged from the acid leak....it is a 74LS08 type chip. readily
Re: [PolySix] Hey...where'd my Bend Wheel effect go?
2007-11-09 by jure zitnik
it could be just disconnected? jure
Re: [PolySix] polysix bat tery leak issues
2007-11-08 by Johannes Hausensteiner
I recently repaired a battery-leaked Polysix, where the acid had crawled via the GND wire to the control panel and damaged the analog mux ICs (4051) there! So
Re: [PolySix] polysix bat tery leak issues
2007-11-08 by drfuzz@aol.com
I would suggest going back and checking the traces and chips again.? The acid damage can be subtle, and cover a wider area than you would think.? It is also
polysix bat tery leak issues
2007-11-08 by spistrich
i did a battery transplant and a little trace repair a few months ago and my Polysix was fine, but it had this slow warmup when 2 of the program LEDs would
Hey...where'd my Bend Wheel effect go?
2007-11-06 by seventhreesix
Evenin folks. I just got a Polysix in remarkable condition, which spent the last two decades in the original box and shipping box, tucked away in a closet.
Re: Tuning Problems
2007-11-04 by scaremi55
Hello, i have the same problem with VR2 and i have already changed PC-1 and R93 (VT5*** + 1k2 R93) ,q3, ic17, ic18, ic19, but it doesn t cause any change in
Prophet 5 -15v voltage rail is shorting...
2007-11-03 by gil_we
Hi all, I m trying to solve a problem with a P5 I just got. It looks like the -15v rail on the main board is shorting. Each time I ll power it up, the 10uf
Re: newbie guide to tuning
2007-10-30 by synx508
... Also, sorry, I m an idiot and getting threads mixed up. My response should ve been directed elsewhere...
Re: newbie guide to tuning
2007-10-30 by synx508
... set up ... Sorry, no newbies guide, but it sounds like your problem isn t tuning but some sort of malfunction. If you lift pin 12 (VCO) of CN05 (the link
Re: newbie guide to tuning
2007-10-30 by hjulskov
... I agree, I tried Johannes Hausensteiners guide: http://launch.groups.yahoo.com/group/PolySix/message/1604 But my P6 still sounds terrible (and I replaced
Re: Problem with VCO modulation
2007-10-29 by mondokraftwerk
Many thanks for the suggestions next week-end I ll try to fix this problem... best regards Giorgio.
Re: [PolySix] Re: poly 6 on records
2007-10-29 by amber@acc.umu.se
... I also used on our album Across the Spectrum : http://www.juno.co.uk/ppps/products/115750-02.htm Listen to the lead-part in Jazz d´Avenir - that s the
Re: Problem with VCO modulation
2007-10-28 by gil_we
First check the other setting and make sure there IS a problem witht he mod wheel setting. If there is, you can try this - take the mod wheel unit out,
Problem with VCO modulation
2007-10-28 by mondokraftwerk
Hello Everyone, I have a problem with the modulation wheel of my polysix, cause if i turn the wheel complete down,this non stop the Vco modulation and I
Polysix Unision detune mod successful
2007-10-26 by gil_we
I just wanted to note that I ve modded my P6 to have a trimmer controlling the unison detune effect. I must say (and warn) that THERE S NO NEED for a POT to be
Re: Replacement CPU chips available
2007-10-25 by gmanca101
Sorry if this is a simple question, but I was wondering after looking at the Ram usage: why does the 8049 access the ram with an address latch connecting to
Re: poly 6 on records
2007-10-25 by Ellsworth Hall
... It was used for bass (and polysynth rezzy sounds) on the recent Aethellis album. Some audio clips here
newbie guide to tuning
2007-10-23 by nanomole39
Hi, just a thought,in the group there are lots of posts askin how to set up and tune the P6,perhaps one of our more expert members could post a newbies guide
Re: [PolySix] Calibration question: Adjust what?!?
2007-10-22 by Johannes Hausensteiner
Sorry, I was mistaken. You have to adjust the Cutoff Frequency knob.
Re: Polysix parts for sale !
2007-10-21 by gil_we
This is possible. Please email me. ... to have a G (or is it an A?) key... I ll check and confirm, depending on your answer. Thank you!
Re: [PolySix] Calibration question: Adjust what?!?
2007-10-21 by Sam Larch
The resonance knob is having no effect on the voltage level. ??
Re: [PolySix] Calibration question: Adjust what?!?
2007-10-21 by Johannes Hausensteiner
the RESONANCE knob
Calibration question: Adjust what?!?
2007-10-21 by sdlarch1
The procedure reads: (8)VCF RESONANCE adjustment Set OCTAVE to 8, WAVEFORM to PW and PW/PWM to 10. Check CN05-7 with DVM and adjust to obtain 0.000V +/-20mV
Re: [PolySix] Polysix parts for sale !
2007-10-20 by Dave Garfield
HI,Gil! Are you considering selling the keys separately? If so, I d love to have a G (or is it an A?) key... I ll check and confirm, depending on your
Polysix parts for sale !
2007-10-20 by gil_we
I got a lot of Polysix parts for sale. If you need anything please contact me by email. Thanks ;)
Re: [PolySix] Re: Replacement CPU chips available
2007-10-18 by Jan-Ahrent Czmok
... Greg, can you contact me off-list to arrange a CPU for me ? (and maybe memory) as i am based in germany.. thanks in advance --jan
Re: Replacement CPU chips available
2007-10-18 by mgrossm1
Greg, the CPU fixed my polysix. It was very nice of you to make these otherwise unobtainable CPUs available. BTW, thank you for sending the chip so fast. What
Tuning issues -PC1 and R93 replaced
2007-10-16 by hjulskov
Hi Due to tuning problems I have replaced PC1 with a vtl5c3 and R93 with a 1K2 resistor on my PolySix. However my it still appears to have some tuning and
Re: Replacement CPU chips available
2007-10-15 by mgrossm1
Cavernosum, yes I changed IC31 first before I got the scope out, made no difference. When I probed the CPU s data bus, I found DB1 had very low amplitude when
Replacement CPU chips available
2007-10-14 by cavernosum7
... RAM chip might be bad so I pulled IC22-13 out of the socket and confirmed the amplitude is still low. I am now convinced the uPD8048-245 is bad. Not
unsteady/impure pitch after battery leakage
2007-10-12 by synx508
Hello, I ve just repaired my second polysix and third KLM-367 and I thought I d share my latest findings. I did the usual IC replacements, including the 40 pin
Re: poly 6 on records
2007-10-11 by hjulskov
... around a ... I remember a concertvideo where a Korg DW-8000 was used for the riff. I have a DW-8000 and it could easily create that brass sound. /Hjulskov
Re: PC1 replacement (VTL5C3)
2007-10-11 by hjulskov
... Thanks. I ll buy the resistor at the local store. I ve ordered the Vactec VTL5C3 from Smallbear. /Hjulskov
Re: [PolySix] PC1 replacement (VTL5C3)
2007-10-11 by Chromatest J. Pantsmaker
... Yes, it s the universal standard. Some areas use 1.2 some use 1,2 etc.. so.. to make it easy, you put the modifier where the decimal goes. ... I would
Re: [PolySix] Re: Unison detune mod...
2007-10-11 by amber@acc.umu.se
By exchanging resistors r119-r122 for pots the amount of detuning for voices 1-4 can be set manually. An alternative would be to exchange them with vactrols
Re: Unison detune mod...
2007-10-11 by gil_we
... or, is there any trimpot which is used to set the amount of detuning put once you click the Unison button ? ... of
Re: Unison detune mod...
2007-10-11 by gil_we
Yes, check the files section - there s a mod about adding a Unison Detune pot, so you can control the how wide the detuning is. ... of
PC1 replacement (VTL5C3)
2007-10-11 by hjulskov
Hi! I have four questions about replacing PC1: 1: Is this the correct replacement for PC1?:
Re: VCA Calibration looking bleak
2007-10-10 by sdlarch1
I found the issue. I reseated the IC that was replaced during the battery procedure. (put it in a socket instead of directly on the board) ... look ...
Re: [PolySix] Re: Unison detune mod...
2007-10-09 by Chromatest J. Pantsmaker
I thought the Poly6 already did this when you put it in unison mode. Are you talking about something else? ... -- .sig -Chromatest J. Pantsmaker
Re: Unison detune mod...
2007-10-09 by gil_we
Re: Trident mkI filter problem
2007-10-09 by gil_we
Very strange.... any battery leakage ? Also, you may want to try to replace any logic IC connected directly with the problematic control, placed on the front