Geeetech

hi all,
my display no longer shows anything. it glows but but no font is displayed.
what is wrong? display or mainboard damaged?

Hi,you can try to reconnect the screen cable, then check if the printer is turned on normally, if there is any ve vb 5v light on the motherboard.

William wrote: ↑

Fri Feb 14, 2020 9:02 am

Hi,you can try to reconnect the screen cable, then check if the printer is turned on normally, if there is any ve vb 5v light on the motherboard.

i reconnected the screen cabel and the printer was turned on but display was without any fonts.
switched off and than i moved the cable back and forth and that helped.
ve and vb lights are on, no matter whether it shows font or not.

Hi,is your 5v light on? The reason for reconnecting the screen wiring may be the loose screen cable.

which one is that?

and after one day working display was that on it. restarted the printer and now again is the display without any font.

Hi,Your motherboard display is normal, you can try to press and hold the reset button under the screen.

my matherboard and display are normal?? realy???

vert wrote: ↑

Sun Feb 16, 2020 7:20 pm

a garbled display is usually firmware settings usually the addition of more delay to the screen fix's it but given the total lack of showing anything the cable could be bad.

how can i fix it, i´m on newest merlin bugfix 2.0.x?

vert wrote: ↑

Sun Feb 16, 2020 7:44 pm

have a look at my github see example of the delay.
https://github.com/Vertabreak/Marlin
or better yet use my fork.

have changed cable and used ur soft, nothing helped. I also measured the connection(pin to pin) between matherboard and display, it is ok.
so i think the display is fucked up.
i can print over the repetier-host soft but nothing on display