I have an ACA500 (it is not ACA500+) and unfortunately I have attached it backward to my Amiga. Since then it can produce only black screen.
I found one of your earlier comments that in this case mostly U3 and U10 destroy.
I changed these chips but it is not working.
I can get every chip instead of programmed Xilinx XC9572.
What do you think it is possible that this xilinx destroyed, too? Can I buy a programmed Xilinx XC9572 chip?