button and vfd cpu scanner chip is
faulty
this deals with all button presses which are
triggered as logic signals by the cpu
this then tells the vfd chips what to write on the
screen
its a common problem they just fail
no more chips available
the esq1 sq80 vfx all use this cpu scanner
chip
as does emu
the chips are 65001 8 bit logic micro with mask rom
with specific code
can get code but cant get the eeprom versions of
the chip any more
as its a no longer made chip
as i was looking at the same for the loads of esq1
i get in for service
the next option now is create an avr or fpga
emulation chip
----- Original Message -----From: Clayton LewisSent: Monday, June 17, 2013 10:03 PMSubject: [Ensoniq-VFX-SD] SD-1 Display Freaking Out.. Buttons don't respondHi all
After a weekend of shows, my SD-1 start freaking out on me. I turned it on and the display just starts to flash and the letters and numbers are just putting on a light snow… flickering on and on. And on top of that the buttons don't respond to anything now. When it first happened, I was able to continue to use the MIDI (I use my SD1 as a controller for my computer) but now with the buttons not working… it just doesn't want to do anything. Attached is a screenshot
Anyone see this.
I just had the battery changed last year.
THANKS