Philips / Assembleon / Yamaha Topaz Xii start up issue - handshake error

When the machine loads up it gets to the 2nd to last step where it starts to load vacuum data - we get 4 pop up windows once that fails.

Ea2510 Machine Start error - Machine cannot be started Es00212 APPL CPU Haandshake error Ea2504 I/O Data transfer error Ea2819 APPL CPU Handshake error

here is the background on the troubleshooting...

this machine is a 9/2003 and we have another similiar vintage (11/2003) and a 2007 Opal Xii

When this problem first popped up last week we swapped APPL boards from our older topaz. problem appeared fixed. We ordered a board and installed in the machine. Error is back same as before. Right now our running topaz xii is in full production for a few days and we won't be able to take it offline..

we swapped APPL the board from our Opal which is also running fine but the same problem persists. I tested the replacement board in the opal and it boots. We are now at a loss with what i could be.

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