Vintage Synth Repair

thanks, brian.  I was afraid of that. anyone think the MIDI a prime
suspect?

st nich

--- In vintagesynthrepair@yahoogroups.com, "Brian Davies"
<briang3oyu@...> wrote:
>
> 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@...m
> [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
> 
> 
> 
> 
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