Yahoo Groups archive

Vintage Synth Repair

Index last updated: 2026-04-28 23:41 UTC

Message

RE: [vintagesynthrepair] Prophet 5 LED flicker

2006-03-13 by Brian Davies

Hi Nich

 

Without knowing the unit but knowing electronics and audio in particular
your problem sounds like a poorly regulated power supply.  You would need a
schematic of the equipment and a voltmeter or scope to track the power
supply from the mains plug onwards.

 

73

Brian G3OYU

www.g3oyu.co.uk

www.surreyraynet.net

 

  _____  

From: vintagesynthrepair@yahoogroups.com
[mailto:vintagesynthrepair@yahoogroups.com] On Behalf Of easterleggs
Sent: Monday, 13 March 2006 00:14
To: vintagesynthrepair@yahoogroups.com
Subject: [vintagesynthrepair] Prophet 5 LED flicker

 

the short of it:  a SC Prophet 5 3.3 with MIDI with LED's/front panel
display that flickers intermittently (especially after receiving MIDI
info for a while).  the visual flicker correlates with an audio
"flicker" (imagine rapid, digital-sounding oscillations modulating the
VCA).  anybody had this problem before?  is my car about to overheat?
generally it lasts through some preset changes, power off/back on,
different outlets...then finally decides to shape up.  I'd sure like
to meet some empathizers.  thanks-st nich






SPONSORED LINKS 


Electric
<http://groups.yahoo.com/gads?t=ms&k=Electric+piano&w1=Electric+piano&w2=Ele
ctronic+repair&w3=Sampler&w4=Moog+synthesizer&w5=Electro+mechanical&w6=Elect
ronic+repair+part&c=6&s=130&.sig=RIoi8jVoiTgfDfA4A8-A3w>  piano 

Electronic
<http://groups.yahoo.com/gads?t=ms&k=Electronic+repair&w1=Electric+piano&w2=
Electronic+repair&w3=Sampler&w4=Moog+synthesizer&w5=Electro+mechanical&w6=El
ectronic+repair+part&c=6&s=130&.sig=MCycqb7Gw74wrjtJgU5SYg>  repair 

Sampler
<http://groups.yahoo.com/gads?t=ms&k=Sampler&w1=Electric+piano&w2=Electronic
+repair&w3=Sampler&w4=Moog+synthesizer&w5=Electro+mechanical&w6=Electronic+r
epair+part&c=6&s=130&.sig=2JrM-vtLHKZypn15ozaYdA>  


Moog
<http://groups.yahoo.com/gads?t=ms&k=Moog+synthesizer&w1=Electric+piano&w2=E
lectronic+repair&w3=Sampler&w4=Moog+synthesizer&w5=Electro+mechanical&w6=Ele
ctronic+repair+part&c=6&s=130&.sig=gqthRWce1fry8L1dFU5pvw>  synthesizer 

Electro
<http://groups.yahoo.com/gads?t=ms&k=Electro+mechanical&w1=Electric+piano&w2
=Electronic+repair&w3=Sampler&w4=Moog+synthesizer&w5=Electro+mechanical&w6=E
lectronic+repair+part&c=6&s=130&.sig=zbJ83S-6fu21DsGnEc4KzA>  mechanical 

Electronic
<http://groups.yahoo.com/gads?t=ms&k=Electronic+repair+part&w1=Electric+pian
o&w2=Electronic+repair&w3=Sampler&w4=Moog+synthesizer&w5=Electro+mechanical&
w6=Electronic+repair+part&c=6&s=130&.sig=HUNagfDE1mUMsP08LfcXdQ>  repair
part 

 

  _____  

YAHOO! GROUPS LINKS 

 

*	 Visit your group "vintagesynthrepair
<http://groups.yahoo.com/group/vintagesynthrepair> " on the web.
  
*	 To unsubscribe from this group, send an email to:
 vintagesynthrepair-unsubscribe@yahoogroups.com
<mailto:vintagesynthrepair-unsubscribe@yahoogroups.com?subject=Unsubscribe> 
  
*	 Your use of Yahoo! Groups is subject to the Yahoo!
<http://docs.yahoo.com/info/terms/>  Terms of Service. 

 

  _____

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.