Patches and discussion for Ensoniq VFX family

Hi Jon,

You wouldn't happen to have a PDF of the service manual....

Thanks,

Gary


From: Ensoniq-VFX-SD@yahoogroups.com [mailto:Ensoniq-VFX-SD@yahoogroups.com] On Behalf Of Jon Carroll
Sent: Tuesday, September 22, 2009 2:20 PM
To: Ensoniq-VFX-SD@yahoogroups.com
Subject: Re: [Ensoniq-VFX-SD] Re: newbie



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

----- Original Message -----
From: "Gary Brumm" <gabru@...<mailto:gabru%40comsec.net>>
To: <Ensoniq-VFX-SD@yahoogroups.com<mailto:Ensoniq-VFX-SD%40yahoogroups.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%40yahoogroups.com> [mailto:Ensoniq-VFX-SD@yahoogroups.com<mailto:Ensoniq-VFX-SD%40yahoogroups.com>]
On Behalf Of jammie
Sent: Tuesday, September 22, 2009 10:12 AM
To: Ensoniq-VFX-SD@yahoogroups.com<mailto:Ensoniq-VFX-SD%40yahoogroups.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@...<mailto:tomlinson6050%40roadrunner.com>>
To: Ensoniq-VFX-SD@yahoogroups.com<mailto:Ensoniq-VFX-SD%40yahoogroups.com><mailto:Ensoniq-VFX-SD@yahoogroups.com<mailto:Ensoniq-VFX-SD%40yahoogroups.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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