Let's talk about positive image exposure and you will understand a principle of Accuset internal test file.
255 is MAXIMUM exposure level of Accuset and never been used in normal circumstances.
It looks for me you have some sort of Laser Driver Module problem. You told us first job/plate looks good. May be after warming up of Accuset you have incorrect laser modulation. Please check coaxial RF cable connectors for good contact
My post above was a little brief as well. Not only chips replacement, but reprogramming the board because one of chips is soldered on-board.
I want to know the problem of Avantra forcing you to purchase new DEC board.
That board for Galileo CTP, so all logic to manage machine is different.
You have to replace almost all chips from sockets on all board and place them on the new one.
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