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memory issue on sp12 turbo
Hi

got my sp12 about 7 months ago, everything went great so far, clean the buttons according to forum faq's, made a few beats.

today I turn it on, first thing I notice : a question mark instead of the last number of  tempo, then, weird fax sounds coming out of the sp. no more sounds, no more sequences, i'm about to go crazy ...

I've checked memory and nothing's left, zero for sounds and sequences.

It seems I need to change the battery but I'm not sure though,

do these problems sound familiar to anyone ?

Update :

I took the SP to a vintage synth specialist, he didn't find anything wrong on the electronic side, but he's not that familiar with sp12, so I 'm gonna need more info to get back to him in case something has to be done.

I came closer to the problem though :

If I  erase all memory (sounds + seq), things go back to normal,
the sp works fine , I tested every single function and it all works fine,

BUT I need to erase all memory  everytime I turn it on, so I can't keep any sampled sounds, can't save any sequences.

ever heard of this ?

thanks
memory issue on sp12 turbo
never heard of that. sounds like satan has chosen to reside in your sp for the time being.
memory issue on sp12 turbo
I sent you a PM.

I don't have a SP-12 service manual. But I think there so similar it's not a issue.

Check the voltages of the PSU, in the link I sent you there is some troubleshooting steps and diagnostics tests, run those and let us know whats not working and we can go from there.
memory issue on sp12 turbo
thanks kasper

I'm downloading it right now.

I have the sp12 owner's manual but it doesn't mention anything regarding maintenance.

sorry but what PSU stands for ?
--> Ok power supply unit

Something new came up

when I try to record, the sp reboots (all the lights turn on and the lcd displays name, version and date of fabrication)


Anyone ever had to replace the battery on the sp12 ??
memory issue on sp12 turbo
gro toolz wrote:
Anyone ever had to replace the battery on the sp12 ??


Not that it may not be the battery (is there one for sure?) most likely it's a power issue or a component is flaking out.

There is really only an limited amount of failures in electronic equipment.

I'd start by looking at the PSU and checking voltage with a DMM (Digital Multi Meter) or plan on taking it to a shop that specializes in vintage equipment, preferably synths.

Taking stuff thike a SP-12 to a repair shop specializing in Gtr amps is not going to be efficient. It will probably cost you some money and you get something that don't work still back.

Ask on Gear sluts and Prodigy-pro DIY for help, I'm on there too and you may find someone local who can help you.

Cheers,
Kaz
memory issue on sp12 turbo
this battery enables sp to save datas when it's off,

but I might as well be stg else because the sp is displaying all kinds of crazy stuff.

well, I'm gonna try to find a place to fix it and in the meantime check those other websites.


thanks for helping kazper.
memory issue on sp12 turbo
I had a couple SP12's and I don't remember the samples staying in memory when I powered it down. The Sp12 has sounds in Rom that you can replace with Ram sounds.

I'd think that if it did have memory it would be for settings if anything, but I could be wrong.

Kaz
memory issue on sp12 turbo
I've just checked on Emulator archive,
the battery in the sp12 is only here for ram samples and songs,
so even if the battery ran out, I could still play the rom samples (banks 1,2,3) and use the sp normally I guess.
memory issue on sp12 turbo
I have actually heard of cases where a dead battery messed with other things.

Open it up and make sure all of the eproms are seated in their sockets firmly.
memory issue on sp12 turbo
thanks for the tip,

a problem with eproms would explain a lot of things, cause sounds are coming out, but weird sounds, and I can't record anything, so I'm gonna check those.
memory issue on sp12 turbo
what's up

I took the SP to a vintage synth specialist, he didn't find anything wrong on the electronic side, but he's not that familiar with sp12, so I 'm gonna need more info to get back to him in case something has to be done.

I came closer to the problem though :

the sp was displaying questions marks, it wouldn't record, weird sounds coming out of it, etc.
then I erase all memory (sounds + seq), and things go back to normal,
the sp works fine , I tested every single function and it all works fine,
BUT I need to erase all memory  everytime I turn it on, so I can't keep any sampled sounds, can't save any sequences.

Does this familiar to anyone ?

thanks
memory issue on sp12 turbo
This happened to my friend's SP12.
I'm pretty sure you just need to get a new battery for it.
memory issue on sp12 turbo
what's up,

it was a battery issue.

I copped the battery thanks to Rtech (Digikeys have crazy shipping fees !)

I installed it and everything's fine now. the hardest thing was to find a cheap iron solder actually.
that soldering thing kinda took me back to junior high school days !!!

feel free to hit me up if you encounter similar problems, would be glad to help.
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