Polar 92x guillotine display screen not working

I have a Polar 92x and the display screen is not working. Is there a way to fix this before I order a new screen?

 

Hi sir:
Please if you paper cutter is Monochrome, do this
1) Measure in the Led V6 -KC2 Keyboard +5vDC TOLERANCE 5%up or down , if go 5.5 is Wrong, replace or repair and vice versa
2) Measure in the connector X500 in -KC2 board : pins 1,2 vs 3,4 =+24Vdc tolerance 5% up or down.
3) En el Display connector CN2: 90-105 Vdc .
4) Look for dirty, corrosion, loose: wires+connectors, clean it very well.
5) Finally this kind of Display in X cutter need to calibrate after.

 

Screen now fixed. Thank you sir.

 

ok sir
Great