SEQUENTIAL CIRCUITS SIXTRAK | TRANSFORMER SWAP, REFURB & CLEANUP

[@sidefish8362]

I recognize that carpet design from "The Shining".

[@waheex]

haha yes that's it

[@stephencampbell9384]

I'm in Bangor, I have a comatose JV90, various lights went very odd (like they were multiplexed with a slow clock nearly), and after a few weeks it ceased to boot up. I rebuilt the power supply, thinking "90s cap plague" but nada. I'm too fat fingered to ever go through all the test points without shorting something to death, so I gave up. If you think it might be fixable, gimme a shout. Otherwise, she's yours for parts for sod all if you like.

[@74goldenjet]

Thanks, very useful! I have to repair my Six Trak, which was mint condition. I don´t have much experience. I was updating the OS and stupidly put on the chip upside down. Then got a new OS chip, but the synth counts to 6 now and jumps straight into sequencer mode, and I can´t make it stop playing. It´s stuck in that mode. I am hoping replacing the battery will fix it. If not, then I am lost...

[@waheex]

it's really easy to do. I got a replacement filter chip for a Opera6 and stuck it on backwards. Late at night repairs:). Try the battery and then it might be a bit of work with checking logic etc

[@74goldenjet]

@@waheex Yeah, I changed the battery and it helped a bit. Buttons 0 and 8 not responding so I can´t perform the reset sequence...And every 8th key is not responding, and the voice leds light up and they stay on until I change mode. I am sure this isn´t a very difficult fix but finding the error is tricky. The Opera 6 is on my wish list, perhaps a bit limited but I like what it does :)

[@richardsmith4992]

Very interesting fix, I like to see synths full of stuff rather than 1 board with a processor on it! Apropos nothing at all where do you source your parts from? I'm fixing a Korg DW8000 with a busted Arp speed slide pot, but it's an odd one - 1MC, 1 million ohms!. It's 45mm long. You can get 50k/100k/500k all day long....Any decent source for something like that? Cheers.

[@waheex]

it's a challenge. I usually try the bigboys RS, Farnell but also some suppliers on ebay and TVSAT in Poland for odd bits.