Hello after poking round with my sk1 a little while back I managed to do something to it which caused me to lose all sound and the power light stayed on even...
My first thought is that perhaps the internal speaker did not survive the drumming. I would plug in a set of headphones/earbuds and see if that still works. ...
Hello everyone. This is my first post. I bought an SK-1 from the Goodwill today. Disappointed to find that it didn't power up either with AC power supply or...
Read carefully on p. 12 of the service manual about the power circuit. Lots of circuits use voltage regulators easily sp[otted by the finned heat sink and the...
Whoa, don't just go replacing stuff willy-nilly... I'd say 9 times out of 10 the problem is a bad filter capacitor. Check the large electrolytic cap(s) in...
Thank you Tom and Lorne for your valuable advice. As often is the case, it turned out to be something simple which I had overlooked. I was going through...
Excellent job! That's an unusual problem - good eye. As far as to mod or not - my opinion is - MOD! But then, I'm a circuit bender... ;-) Actually, it...
I have some bending circuits for the SK-1. You'd be FAR better off to buy the Reed Ghazala book, "Circuit Bending". It shows a nice bend for the SK-1, Very...
Just solder a wire to all the ram chip pins, be careful with the chip;s power and ground pins, you may fry the instrument. It is just a matter of shorting...
Be aware that Ghazala has posted a few online corrections to the book on his website. It's a classic how to. Lorne in canada From: CasioSK@yahoogroups.com...
717
CasioSK@yahoogroups.com
Jul 31, 2012 3:11 pm
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the CasioSK group. File : /Casio SK...
Hi Christian! Welcome aboard! Your Tablehooters site is well known around these parts - great to have you here - your immense knowledge of all the strange...
720
yerzmyey
yerzmyey@...
Aug 1, 2012 8:17 am
... http://weltenschule.de/TableHooters/index.html ... Yupp, the site is for maaaaaaaany years my main sources of informations about toy-synthesizers. Thanks a...
Be careful. I gues I have written partly a lot of bullshit about the purpose of certain Casio ICs (I rather compared user functions than looking on the...
722
CasioSK@yahoogroups.com
Aug 2, 2012 4:43 am
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the CasioSK group. File : /Casio SK...
A few years ago I partly decoded the sk-1 ROM, I created a new soundbank that was pretty cool. Ive got a spreadsheet floating around someplace with my...
Hey guys, I'm new here I don't know much about electronics but I might be of help in some cases. Right now I need help from you guys. I have built a 555 LFO ...
It could be the ill wind shown in your dwg is creating bad circuit karma...otherwise, the led/photocell is converting the voltage output of the 555 to a...
Hi there, okay so a photoresistor is needed, and you solder it to the pitch points on the sk, then you glue this to the LED then tape it up so no light gets...
I'm no expert on SK1 but I think mcdonaldtavish is right on the money. An LED and a photoresistor taped together is generally called a 'vactrol' - google it....
HI guys! I was really stoked to try the slow AD mod but when I did it, although it did work to an extent it seem to do what I was expecting. It would only do...
Hi everyone, I just recently picked up a Casio DM100. This is a dual-keyboard combo organ, with what appears to be an MT240-type keyboard on the lower...
Latest update - I have MIDI installed! Fitted out upper and lower keyboards each with a Highly Liquid UMR2 MIDI in/out module. Both the upper and lower...
I am researching how the various Casio SK-keyboards technically differ. -Has anybody a service manual of Casio SK-100, SK-200, SK-2100 or Hohner PK60? They use...
