Patches and discussion for Ensoniq VFX family

Dorothy,
You might want to download the file power.zip from
http://launch.groups.yahoo.com/group/Ensoniq-VFX-SD/files/Tools/Schemati
cs/
There are some diodes CR1 to CR8 follwing the fuses. I can remember that
I had a dead display because one of the fuses was blown (I can't
remember which one it was). So it could well be one of these diodes.
Check the voltages given in the schematics to find out which circuit's
wrong.

The power supply hasn't changed very much from the vanilla VFX to the
SD.

I hope this helps,
Hans

-----Ursprüngliche Nachricht-----
Von: paixwool [mailto:snowberry@centurytel.net] 
Gesendet: Freitag, 25. März 2005 21:25
An: Ensoniq-VFX-SD@yahoogroups.com
Betreff: [Ensoniq-VFX-SD] A question for Richard




Hi there,  In an earlier post you mentioned a diode replacement on 
the power supply board to correct the problem of the display not 
activating. I think I killed this diode by starting up when it was 
still very cold!  Anyway, I have opened it up and checked everything 
on that board; everything is labeled, but only found C1, C2, C3, C5, 
R5, and R6 suspect by using a volt meter.  So where is the diode?  
Those items sound like capacitors and resistors. Help please! Dorothy






 
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