Hi. I am unable to calibrate touch panel on this dpc-262. Touching on the + sign does nothing and no beeps. I have removed the whole pivot assembly, removed the glass panel and cleaned it and edges and reseated cables. Nothing seems to work. Then took the panel's ribbon cable out it had 4 leads. When checked with a multimeter, inner two leads corresponded with different ohm levels when I move the finger on the panel. The outer leads had no impedance levels. Anyone experience this problem? Firmware update or new panel? Any ideas?
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