Vertical Lines on Half of Display

[rfxcasey]

I have an HMI with vertical lines on half of the screen. These lines aren't scrambled garbage but rather very regular in pattern and color. I have replaced the LCD with a new one and still the problem persists. I'm wondering if this isn't indicative of a bad video process chip or video memory? Any help would be appreciated. The cable appears to be OK but one pin on the header is unpopulated, though there isn't any loose wire to suggest one broke off or popped out of the connector. In the picture below where the connector is busted out of the side, I did that with my small screw driver while trying to push the connector into the header on the new screen, there was no wire populating that position previously. Each connector has 14 Wires but one header has 15 positions while the other has 14 positions. As stated I have replaced the LCD with a new one of the same part number and still have the video issue. Wiggling or moving the wires doesn't effect the image at all, no change whatsoever. Kind of looks like an interference pattern to me but I'm no expert on displays.

 

[aliarifat794]

Maybe the video processing chip is malfunctioning.

 

[rfxcasey]

Maybe the video processing chip is malfunctioning.

I've got one on order along with two memory chips. There are two dedicated video memory chips, wondering if each handles only half the screen.

 

[Nigel Goodwin]

I've got one on order.

Is it a programmable chip?, and do you have the required file to programme it with?

 

[rfxcasey]

Is it a programmable chip?, and do you have the required file to programme it with?

It's a F65548A from Chips Hong Kong, I believe it is not programmable.