Polar 78 x Display

The display on our 2007 model guillotine has failed. we get a brief dull flash in the screen when the unit is powered up but display is unreadable. we are waiting on a suitable electrician to check the power supply but he is a few days away. Has anyone experienced this type of failure & is it likely to be a power supply or has the TFT screen died ? We have been using it up until today when we have unfortunately caused a backgauge position failure & without a screen can't navigate our way to resetting this. The tft is nearly $10k & 10 working days from Polar.

 

Hi sir

You must test in the 3 PCB ;

A)
1) kc +24Vdc

2) DAK output 350V for backlight

3) LCD / PLASMA /TFT Display 350 Vdc of input for backlight.

B )look for V6 LED in KC must be ON =+5Vdc.

C) Look for connectors loose, or corroded, or faulty, or bend pins.

D) Flat cables or ribbon cables, loose, or faulty , or corroded, or bend PINS.