What may be the problem????

lcd problem cb3

August 13, 2019

Marcin27 Marcin27
1 posts

2 replies

Hello, That does not look good.
i would suggest checking the Firmware and maybe updating that. maybe that will clear the problem,?
you can check all the connections from the screen to the HMI board. and as a last result. replace the screen altogether.

August 15, 2019

Peter35 Peter35
7 posts

I think the flat cable connector between the LCD itself and the belonging electronics (PCB), is a little loose.

  • shut the CB3 off
  • Detach the LED strip connector
  • unmount the the top lid
  • unmount the LCD assembly,
  • unlock the flat cable between LCD and LCD PCB (I don't mean the rectangle connector with the cable to the main PCB at the back)
  • stick the flat cable in the connector again an lock it again.

If not working I assume you should get a new LCD assembly from CU.

August 18, 2019

Bartaar Bartaar
Service partner
1678 posts
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