2.28.2008

Yamaha CS-5 Synthesizer Repair.

I successfully repaired my CS-5 last night. I was a bit of a struggle because the previous owner attempted the same thing but destroyed the circuit board contacts in the process... I had to do a bit of surgery but it's quite solid now.
For anyone who would like to know: in order to remove the front panel, you need to take off the two plastic ends and then the 3 screws along the bottom in the back. The top should then be free of the body.
Check out this flickr set for more photos.

6 comments:

Ros said...

Good post.

Anonymous said...

Hello i' ve found a CS 5 in a bin but there is no transfo. Could you tell me whitch PSU it needs?
I saw it is a symetric PSU but i don' t know what voltage it is.
Thanks

Anonymous said...

It uses +-15 volts, I suppose.

Anonymous said...

Hi,

I've recently got a faulty CS5, There's a fault with the filter, It only plays with the pitch slider right down and only on the low few keys, It seems to be getting worse too but I can't find out whats causing it.

I don't have the LFO chip in but i'm sure that wouldn't affect it.

Could you point me in the right direction?

Cheers

Jonny

Alex_Inglizian said...

Hi Jonny!

Sorry to hear about your cs5 troubles. unfortunately i'm not too familiar with the circuitry of this synth. Luckily my problem was electromechanical and a fairly simple fix. I would recommend a thorough cleaning of all the sliders and knobs just to make sure there are no shorts.
Other than that, it may need a trip to the repair shop.

good luck!!

Anonymous said...

Hello Alex, I hope I got your name right..
I have bought a really nice CS5 recently but a week after buying it I seem to of broken the external input. I tried plugging many things into it and was loving it , then I tried a tatty Casio SK1 which had a loose mains input and it produced and very nasty frequency which has made the input dead, could you shed any light on my situation, could it be a fuse? Any help or time is hugely appreciating as I can't afford the professional fix at this moment, best regards... JACK