Patches and discussion for Ensoniq VFX family

Looking at the power supply schematics, i dont see a +35... i see a +50...


----- Original Message ----- 
From: "Gary Brumm" <gabru@...>
To: <Ensoniq-VFX-SD@yahoogroups.com>
Sent: Tuesday, September 22, 2009 1:44 PM
Subject: RE: [Ensoniq-VFX-SD] Re: newbie


Hi Jamie,

I do not remember a -35 from the PS....I will check.  Sometime the display 
lights up all segments and sometimes it is blank....the buttons
are non-responsive for the most part...seems different every time I start it 
up.  It also came with a Cesium Sound ROM Cart.

Thanks,

Gary

From: Ensoniq-VFX-SD@yahoogroups.com [mailto:Ensoniq-VFX-SD@yahoogroups.com] 
On Behalf Of jammie
Sent: Tuesday, September 22, 2009 10:12 AM
To: Ensoniq-VFX-SD@yahoogroups.com
Subject: Re: [Ensoniq-VFX-SD] Re: newbie


its +5v and -5v for the filament of the fip then theres a -35v from psu for 
the anode and cathode suplly

via 2 display drivers 1 does the row 1 does the colume the 1 display driver 
also does the push button switches and drives the leds for those swithches 
via led drivers and logic

its the same design used in the eps /eps16+/asr10/vfx-sd/and the ts10/12 
until they did the purple lcd screen for the asr88 and later asr10
----- Original Message -----
From: tomlinson6050<mailto:tomlinson6050@...>
To: Ensoniq-VFX-SD@yahoogroups.com<mailto:Ensoniq-VFX-SD@yahoogroups.com>
Sent: Tuesday, September 22, 2009 5:46 PM
Subject: [Ensoniq-VFX-SD] Re: newbie



i'm in Richmond KY. about 100 mi south of Cincinatti.

my thoughts on your VFX:

i don't think there is a -5 volt line: two +5s

there should be a 50-volt output from the power supply for the vacuum 
display.

when you open the front panel, there will be three connectors to the panel 
/display board: one on the left, two on the right. check them for corrosion.

thanks for the welcome

bill

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