Having trouble with an Acramatic 850 (CRT LOGIC fault--see other post). This particular NCP part number does not show up in any searches. Can anyone advise how interchangeable the various part numbers of NCP are? Obviously I would expect to have to move ROMs (and maybe even PALs (??), if the versions are different.

Also, has anyone peeked inside the ROMs? Do they have obvious checksums, so that I can verify their contents seem valid? On old FANUC this was pretty easy and I have saved all ROMs to files.

Has anyone archived NCP ROM contents (and perhaps PALs) by part number?

I imagine Siemens may still have this info, but their price for advice is pretty dear :/

Thank you