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RE-640 not powering up

Ultraman

Ultraman
Hi! Tech guys

I have a problem with my RE640, I changed the dampers and flush the printhead and I did wrapped the print head board with tissue paper and ink on dampers are kind mess on dampers and could have corroded with some ink on the printhead or print carriage board and shorted the board. I turn on the sub power and it will not power up. I look at the main board fuses and it has connectivity so as the power supply board but servor board will not lit up, since fuses are good on main board what connection stop the servor board from lightning up and not powering up the machine. Prior to this issue, I only remove and insert back the data head cable back to print carriage. Appreciate some advise or tips
 
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