Search found 14 matches

by Duart
Tue Jul 01, 2014 10:29 pm
Forum: HELP!
Topic: Yamaha CS-5 has cut off and key hold problems
Replies: 18
Views: 4600

Re: Yamaha CS-5 has cut off and key hold problems

I no longer use my mixer, so I thought let's give this a try, so far the modding is totally reversible, thinking of using a double pole switch instead of a jack and keeping the whole feedback loop internal...
by Duart
Tue Jul 01, 2014 7:28 pm
Forum: HELP!
Topic: Yamaha CS-5 has cut off and key hold problems
Replies: 18
Views: 4600

Re: Yamaha CS-5 has cut off and key hold problems

I did an extra mod, I have used another jack female chassis to duplicate my output, now I can feed my output signal back into my input and have the filter go crazy!!! Nice!!! :D
by Duart
Sun Jun 22, 2014 1:10 am
Forum: HELP!
Topic: Yamaha CS-5 has cut off and key hold problems
Replies: 18
Views: 4600

Re: Yamaha CS-5 has cut off and key hold problems

Thought I'd let you guys know that the filter mod in the txt file I posted earlier works fine and I adapted it to my synth which now works great!

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by Duart
Tue Jun 10, 2014 3:57 pm
Forum: Gear Services & Other Goods
Topic: Yamaha CS-5 Filter Socket Upgrade
Replies: 0
Views: 639

Yamaha CS-5 Filter Socket Upgrade

Has anyone installed the CS-5 Filter Socket Upgrade made by Kenton on his CS-5 or CS-10 ( think they're pretty much the same, the upgrade that is ) From what i've seen and heard the upgrade is nothing more than just a Jack chassis and some wiring, I already have both of those, but don't have the sch...
by Duart
Sun Jun 08, 2014 12:36 pm
Forum: HELP!
Topic: Yamaha CS-5 has cut off and key hold problems
Replies: 18
Views: 4600

Re: Yamaha CS-5 has cut off and key hold problems

I do wonder if anyone has the right schematics for doing a filter cut off cv gate output socket?
by Duart
Sun Jun 08, 2014 7:34 am
Forum: HELP!
Topic: Yamaha CS-5 has cut off and key hold problems
Replies: 18
Views: 4600

Re: Yamaha CS-5 has cut off and key hold problems

I received the new ic yesterday and installed it onto the board using an ic-socket, works like a charm now! Full filter function, so I'm good to go now!
by Duart
Thu Jun 05, 2014 11:04 pm
Forum: HELP!
Topic: Yamaha CS-5 has cut off and key hold problems
Replies: 18
Views: 4600

Re: Yamaha CS-5 has cut off and key hold problems

Are you certain it's the chip? It is at the end of it's lifespan alright, but did you use the measurements in the service manual? Nope, I'm not certain it's the chip, I did see some measurements for the vco board, but in the service manual I have, I couldn't find them for the vcf/via board, if you ...
by Duart
Thu Jun 05, 2014 9:43 pm
Forum: HELP!
Topic: Yamaha CS-5 has cut off and key hold problems
Replies: 18
Views: 4600

Re: Yamaha CS-5 has cut off and key hold problems

Jabberwalky wrote:Damn. Well synthparts.com has the chip. $65 isn't really much to get a synth functioning again.
I'm trying to get it somewhere local, and I might be lucky, a friend of mine knows a repair dude that might have one!
by Duart
Sun Jun 01, 2014 2:25 am
Forum: HELP!
Topic: Yamaha CS-5 has cut off and key hold problems
Replies: 18
Views: 4600

Re: Yamaha CS-5 has cut off and key hold problems

Ok, I checked all the pots, and the cut off pot is actually good, no strange values popped up during measurements taken. Kinda stranded now, any thoughts? I'm not hoping the IG00156 IC is the cause, I see those go for quite a few dollars for just an IC... Could a bad capacitor perhaps be the cause? ...
by Duart
Fri May 30, 2014 1:09 pm
Forum: HELP!
Topic: Yamaha CS-5 has cut off and key hold problems
Replies: 18
Views: 4600

Re: Yamaha CS-5 has cut off and key hold problems

So i finally picked up my Yamaha CS-5 today, and the outside is looking very good, the key hold problem was related to the initial velocity, so that is no issue anymore, I'm now gonna dig into the cut off problem and see if I can film the whole process since there is really nothing around on the web...
by Duart
Tue May 27, 2014 7:19 pm
Forum: HELP!
Topic: Yamaha CS-5 has cut off and key hold problems
Replies: 18
Views: 4600

Re: Yamaha CS-5 has cut off and key hold problems

That's an idea bitexion, but I think I'm gonna try that out myself, gonna pick it up on Friday, so I can see what's wrong for myself, let's hope he just doesn't know what he does... ;) thanks for the feedback, as soon as the synth has arrived in my studio I will check all your guys tips out!
by Duart
Tue May 27, 2014 8:42 am
Forum: HELP!
Topic: Yamaha CS-5 has cut off and key hold problems
Replies: 18
Views: 4600

Re: Yamaha CS-5 has cut off and key hold problems

Thanks for your input Jabberwalky, from what I know the rest of the filter works just fine, like the filter envelope and resonance, just the cut off that doesn't do nothing. About the initial VCA level being turned up I have to check with that dude, think I'm gonna pay him a visit to find out. From ...
by Duart
Mon May 26, 2014 8:57 pm
Forum: HELP!
Topic: Yamaha CS-5 has cut off and key hold problems
Replies: 18
Views: 4600

Yamaha CS-5 has cut off and key hold problems

Hey Guys, been watching this website for some time and decided to sign up and participate in all the fun! I have a problem I hope you guys have an answer to... I can buy a Yamaha CS-5 but the current owner says the cut off doesn't work and the last key you strike stays on forever, so it's not just o...
by Duart
Mon May 26, 2014 11:33 am
Forum: General Synthesizers
Topic: What can a Roland JX-3P do without PG 200 programmer
Replies: 45
Views: 15912

Re: What can a Roland JX-3P do without PG 200 programmer

Bought myself a DT200V2 programmer by Dtronics instead, works like a charm, paid 200 euro's and the unit is brand new!