White Squares in LCD Smart Controller!
August 22, 2016 07:01AM
Managed to assemble a Folger Tech 2020 Prusa i3 Kitwithout much fuss.
However, when the system is powered up, the RepRapDiscount LCD Smart Controller
only shows two rows of white squares.
The electronics in the kit;
Ramps 1.4
Arduino Mega 2560 R3 Clone
RepRapDiscount LCD Smart Controller (sold separately)

All connections (wires, cables, etc) have been checked and verified.
Googled quite a bit also.

Any ideas as to what to do next?

Thanks !
Attachments:
open | download - rsz_20160814_150714.jpg (438.1 KB)
Re: White Squares in LCD Smart Controller!
August 23, 2016 07:19PM
Try re-flashing your firmware.
Re: White Squares in LCD Smart Controller!
August 23, 2016 08:58PM
Quote
av8r1
Try re-flashing your firmware.
I'll look into that. Many thanks!
Re: White Squares in LCD Smart Controller!
September 20, 2016 09:08AM
Sounds like the contrast of the LCD screen needs adjusting. Is there a trimmer pot on the back of the circuit board?
Re: White Squares in LCD Smart Controller!
September 20, 2016 10:02AM
Also might want to check firmware, that you enabled the "discount LCD" and not "full graphics discount LCD"
Re: White Squares in LCD Smart Controller!
September 21, 2016 01:33PM
Most likely you have the wrong LCD selected in your firmware as mentioned before. If it was already working, then stopped for apparently no reason, you may have fried your 5v regulator.


If you need some help, or don't understand what I just said, feel free to send me a PM anytime

Printer: Prusa i3, 2 E3D v6 Hotends, Arduino + RAMPS 1.4 with a Bypassed 5V Regulator, 400w Insignia ATX PSU, Custom Designed Bowden Extruders
Re: White Squares in LCD Smart Controller!
September 24, 2016 03:33PM
LCD contract too high
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