Actually I CAN unprotect the PALCE and read the contents. There is TNM5000 programmer that can unprotect this chip only (lucky me). I programmed a PALCE and protected the fw inside with elnec programmer, unlocked with the other programmer and then back on the elnec, verified the content and it was the same, nice and unprotected
I already bought the most components, replaced the CPU with another 3, it is the same. I verified the circuits between the ic-s. I can't explain myself, somehow, the PALCE became faulty (maybe when I desoldered). That fw is the only one that I don't have. And here is another thing: If I modify some bits in the JED file, the board is doing something, because the Watchdog deactivates, and some leds blinks, so I think that the only problem is the corrupted fw.
All I need is to make that board work again
I attached a picture with machine, for reference, and a text with the palce content