What turned out to be fix? Was it the cables? I'm looking for bulletin 2N9-005 (looked on copystar portal and can not locate it) the reason I ask is I currently have a TA 455ci with this code and would like to know what the updated lvpwb difference is from the old one as I may need to order it. I looked in parts manual rev 5 and it still has the old one listed no updated pn.
One of the boards is rectangular, the other one is a different shape and uses a different metal plate behind it.
Oops, I just realized I was thinking of the 4501 5501 low voltage board.
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