Nice, Im looking forward to hearing them. I know what you mean about projects getting in the way of song writing, believe me. Sometimes I work on something...
If anyone is looking for the Casiology webpage, which housed hundreds and hundreds of Casio user and service manuals, including the SK1 SK5 and SK8 service...
... and hundreds of Casio user and service manuals, including the SK1 SK5 and SK8 service manuals, alas, it is no more!! ... Yes, I noticed it too. Actually...
yerzmyey@...
Oct 6, 2008 4:29 pm
455
"is the site gone forever?" Unfortunately yes - I spoke to Joerg, who ran it, and he said that was the case. He's had lots of trouble with ISP's and apparently...
Im bending an sk-1 right now, and through the line out i've added to the speaker run, theres lots of treble hiss. for example, when turned on it immediatly...
I've acquired one of these vintage analog (?) synths. http://s454.photobucket.com/albums/qq264/badstatic/?action=view¤t=3394_I1.jpg I'm considering...
Hi I am new to the group. I built the Phat filter bank recently with the idea of installing it on one of my SK-1. I was wondering if anyone here has actually...
Hi Rabato, Although I haven't put the Phat Philter Bank into an SK-1, it is just as easy as the SK-8, according to the schematics. Firstly, did you build it in...
Yes, you're absolutely right! I only built the first module. I should try that first. I thought of uploading a photo of the board to the files section for ...
Okay, I tested the module and found it wasn't working at all so I went ahead and built a brand new one. I took more time and got a little more careful since...
Hi Ramiro, The schematics for a single module are in the FILES section here at this site, in a folder called "VCF circuit for SK keyboards". It is just the...
i have seen the write up in the R. Ghazala circuit bending book. i believe he shows 10 potential bend points. has anyone found additional things to do with...
Hi Ramiro, Someone very kind from the Circuitbenders.co.uk forum (thanks Signal:Noise) took some really nice SK-1 board photos, and so I have been able to...
Hi, I've seen several Sk's with the clock speed changeable. I assume the clock is set by a crystal oscillator. If so would it be possible to take away this...
Thanks Graham and Signal:Noise! This is awesome and it adds the CV outs aswell. Perfect. I did a quick test with the drums out last night and it worked. ...and...
That's great news! The Phat Philter Bank board is quite difficult to make without making a mistake somewhere because it's so tiny, you can easily go cross-eyed...
From what I've seen on other sites, the pitch bend mods done to the SK's that give a really large bend range in both directions are all done with an external...
According to the SK-1 service manual, page 6, the inputs/outputs of the clock signals are pins number 57 (input) and 58 (output) on the CPU chip respectively. ...
Oh, I forgot to mention that the SK-1 clock runs at 7.24MHz to give normal pitch, so choose components in your 555 circuit to give you this speed to start...
Wow! Thanks for all the information and help! So I tried it last night and have not got it working succesfully. It produces some wacky sounds, but the clock is...
Looking at the schematic and the circuit board to me it seems that pin 58 would be the in, as pin 57 goes to nothing. What do you think. I'll experiment a bit...
Pin 57 definitely goes to something, according to the service manual schematics. You may have got the pin labels confused on the schematics. Starting from the...
My mistake. Yeah, pin 57 does go to sthing Tried it and it just locked up the sound. I checked that forum and couldn't find info. Is there a simple way to test...
Hey, I just found some SK oscillator info: http://www.xs4all.nl/~samzen/synth/synth.html#casio and http://www.xs4all.nl/~samzen/synth/circuits.html#hfosc It...
Hey Graham, that's brilliant. Good find! Just one more question/request, I'd be interested to see what you think of the schematics for the VCO as I'm...
Hi Al, I just uploaded a diagram to the Files section here, in a folder called "Pitch bend clock oscillator mod". I think that this is what the drawings mean. ...
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