Ok, now we are getting somewhere. I am not getting any voltage on pin 86 when the empeg is on. I traced the signal back by the power supply and am kind of stuck now. While the empeg was running I injected 3.3V through a 10K resistor and the empeg quickly saved to flash and blanked the display for a 1/2 second and then kept running kind of like a quick reset. Now when I reset power it comes up to that very position that I manually saved. I have repeated this process 3 times so I think everything will be fine if I can figure out how that signal works. I have attached a pic that shows the part of the power supply in question. I have traced the powerfail signal back to a 8 pin part marked 8532A that appears to be some sort of switch or something. I need help in figuring out what this is and how the powerfail part of the circuit works. Hopefully someone will be able to shed some light on this and I can get this up and running again.

All I want for x-mas is for my empeg to work.....

Thanks in advance for the great help.

Nick


Attachments
243273-empegpower.jpg (178 downloads)