Have a c3220 that will work a couple of hours and the display will go blank. Tried restarting and display will not come back on. Reseated memory, bootrom, HD connections and it started working again. Next day same thing. Replaced memory, bootrom, HD, and it worked for a couple of hours and the customer called and said it has done it again. Going to take a control panel and replace it and see what happens. Any other suggestions?
Thanks
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