Patches and discussion for Ensoniq VFX family

as per a previous post, i found a bad fuse, changed the fuse, powered 
up, and didn't get the low voltage message. Plugged in the 
headphones, same crappy sound.  powered down, powered up, got the low 
voltage message; the fuse had blown.  so i definitely have a power 
problem. i don't have a schematic, and am a little to ignorant to 
look at the diodes and see what is what.  i am thinking about sending 
it out to TheSoniq and having him run it all down.

--- In Ensoniq-VFX-SD@yahoogroups.com, "John" <john.boyle03@...> 
wrote:
>
> This sounds similar to a problem I had except, all I got was the
> "battery low" warning, no sounds.  The battery voltage is compared 
to a
> voltage from the PSU.  So if this becomes unstable. 
> 
> In my case a diode had blown on the bridge rectifier.  I believe 
there
> are 6 and if ones gone it might be an idea to change all 6.
> 
>  
> 
> I hope this helps.
> 
>  
> 
> John
> 
> -----Original Message-----
> From: Ensoniq-VFX-SD@yahoogroups.com
> [mailto:Ensoniq-VFX-SD@yahoogroups.com] On Behalf Of
> markbreton@...
> Sent: 16 January 2009 22:55
> To: Ensoniq-VFX-SD@yahoogroups.com
> Subject: [Ensoniq-VFX-SD] sd1 battery died, changed, still get low
> voltage message
> 
>  
> 
> bought the battery off ebay, reads 2.97 volts. metered the 
mainboard, 
> power is getting to where it should. the display lights are dim, 
the 
> buttons change presets but what tiny little bit of sound that comes 
> out is the same no matter what. it sounds like a sawtooth, doesn't 
> change pitch no matter which key i hit. the sequencer will not stay 
> loaded. i read the posts and saw somewhat similar problems. do you 
> think it is the main power supply or a cap that regulates it? has 
> anyone dealt with www.thesoniq.com for repairs? anyone have a 
> schematic source?
> thanks so much, i am glad to be a part of this group!!
>