Hi, ... No, only those which are getting warm. Which ones are they? Usually those in power supplies. The more current, the more heat. The higher frequency the...
thanks a lot! didn't realize the ARP's completely isolated from the program board! that makes it much easier to figure out :) i wish i had decent service...
Ok I messed up... while trying to find out which one of my 6 SSM-2056 chips was not working ( every 6th note would not play) by switching chips around as...
... replaced ... Changing ... blank ... what ... here is my OWN reply... I somehow got the sound quality back by removing and replacing the chips... but I...
Finally gotten around to securing programmable versions of the 8040 & 8049 CPU chips used on the Polysix Processor and Voice boards; and after a long search,...
Do you do repairs on Polysixes and if so where are you located? I've to a Polysix with what I think is factory installed midi and the output is weak and what...
I do -- I've done about 30 at last count. I'm in Oakland, CA. Question: is the output to the headphone jack have the same problem? When tracking down output...
I mean that filter of the last two oscillators has somehow turned to work negative. When cutoff filter is opened, one oscillator plays it closed (like lowpass...
Does it happen only to one of the 8 oscillators ? if so, replace its SSM2044 chip.... ... to ... it ... closed, ... mode ... 8th ... two ... all ... it).. ... ...
Has anybody had his P6 modded for a unison detune mod ? What do it actually do ? Does it makes all 6 oscillators go out of tune, fattening the unison sound ?...
thanks, i will try that. it does happen with 7th and 8th oscillators, but only one at time. changing eg-mode seems to affect wich one is malfunctioning....
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...
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 ... ...
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 ...
amber@...
Oct 11, 2007 1:03 pm
1653
Hi! I have four questions about replacing PC1: 1: Is this the correct replacement for PC1?: ...
... 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...
... 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...
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...
... 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...
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...
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...
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...
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