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 Forum index » DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
ulTIMATE POST CONSTRUCTION PROBLEMS
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eXisteNz



Joined: Jun 08, 2010
Posts: 48
Location: Italy

PostPosted: Sun Jun 27, 2010 5:22 am    Post subject: ulTIMATE POST CONSTRUCTION PROBLEMS Reply with quote  Mark this post and the followings unread

Hi there to everyone builders, i have built the synth but the VCO 3 and LFO 1 doesn't work.
THe speed of the led on the lfo one raise according with the frequency raise but doesnt affect the filter, even if i connect it with the front panel connections....the third vco is completely mute...can someone tell me where i have to measure voltage at which ic/transistors pin in order to see if some component is damaged? please help me i need the synth for a gig this week, thanks a lot to everyone in advance!!
Nicola
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eXisteNz



Joined: Jun 08, 2010
Posts: 48
Location: Italy

PostPosted: Sun Jun 27, 2010 8:57 am    Post subject: vco3 problem fixed Reply with quote  Mark this post and the followings unread

I fixed the problem on vco3, i pierced the c29 capacitor 0.005uf polystirene with the solder, i substitute with a 4,7 poliestere caps and now is working....now remain the lfo1 problem and a new problem: square wave on vco1
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eXisteNz



Joined: Jun 08, 2010
Posts: 48
Location: Italy

PostPosted: Sun Jun 27, 2010 11:22 am    Post subject: Reply with quote  Mark this post and the followings unread

doesn't flow voltage on the x94 so on s5 on the pin connected to x94, but on r 246 and on the others pins of s5 theres an oscillation of voltage, the transistor works fine too.....i changed r245 3.3k but still no voltage at his pins
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 Forum index » DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
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