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How can i verify a dead LCD screen?

Posted: Thu May 03, 2018 8:57 pm
by NickNonsense
Hey, can anyone help me verify I have a dead LCD screen before I go ahead and order a replacement, please? I was tiding up the electronics, putting everything into a nice enclosure and when I had finished and powered up the printer my LCD screen shows just black boxes. I have checked all connections, firmware, even flashed new firmware. The printer connects to desktop fine and able to control it there but not an ideal place as I lack space to leave it print, so need the sd reader and nice to have the LCD to check on temps etc too.

Re: How can i verify a dead LCD screen?

Posted: Fri May 04, 2018 11:26 pm
by _kaktus_
In my opinion, this is due to a faulty connection.

Re: How can i verify a dead LCD screen?

Posted: Sat May 05, 2018 11:48 pm
by NickNonsense
i bought a new full graphic smart controller, anyone knows if this is simply a straight swap over?

Re: How can i verify a dead LCD screen?

Posted: Mon May 07, 2018 12:06 pm
by _kaktus_
Probably your new display requires different signals for control and a different code.

Re: How can i verify a dead LCD screen?

Posted: Thu May 10, 2018 8:03 pm
by Tomyuan
1.Maybe you need to check the mainboard works or not
2.You need to reburn the bootloader of it

Re: How can i verify a dead LCD screen?

Posted: Fri May 18, 2018 6:31 pm
by NickNonsense
sorry for not replying but it seems like all my posts require mod verification before they show and is painfully slow. So i resorted to other forums.

I bought the RepRap 12864 LCD Graphic Smart Display and just done a straight swap. The display was cheap enough anyway. One thing to note is for the LCD encoder to work properly you need both the LCD and SD cables attached as the SD cable controllers the encoder.