It's just a regular A500, Rev 5 motherboard. I don't see any blown caps, but I'm no expert. I tried replacing the Denise chip. It worked normally one time, then went back to displaying the black lines and wouldn't boot. I'm afraid I just blew the replacement chip.
I never see any A500 faulty, only even seen dodgy connections. Try reseating all chips.
I see really wierd stuff, if the CPU connections are poor.