LCD display shows garbage characters sometimes

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vad7
Posts: 28
Joined: Sun Mar 29, 2015 1:08 pm

LCD display shows garbage characters sometimes

Post by vad7 » Wed Apr 08, 2015 4:30 pm

Printer Acrylic Prusia I3 with Sanguinololu.
This does not happen on a regular basis.
When I reconnect the LCD board it show correct characters (except special symbols).
Once the control board hung.
IMG_1497.JPG
LCD garbage
IMG_1497.JPG (34.72 KiB) Viewed 8571 times

zhangxueyou
Posts: 1405
Joined: Fri Feb 06, 2015 1:33 pm

Re: LCD display shows garbage characters sometimes

Post by zhangxueyou » Wed Apr 08, 2015 4:48 pm

Please make sure the wires are well connected. Turn off the printer, and turn it on again.

vad7
Posts: 28
Joined: Sun Mar 29, 2015 1:08 pm

Re: LCD display shows garbage characters sometimes

Post by vad7 » Wed Apr 08, 2015 6:29 pm

I have checked cables many times.
After restart the printer works fine for a some time.

But what can I do while printing? If I restart print I lose printed model.

May be is it the firmware or COM port setupt issue? I set COM port to 250000.
How to check the firmware version I dont know.

vad7
Posts: 28
Joined: Sun Mar 29, 2015 1:08 pm

Re: LCD display shows garbage characters sometimes

Post by vad7 » Thu Apr 09, 2015 4:05 pm

I have checked the firmware version: 1.0.0, compiled: Feb 2, 2015 15:17:04.

zhangxueyou
Posts: 1405
Joined: Fri Feb 06, 2015 1:33 pm

Re: LCD display shows garbage characters sometimes

Post by zhangxueyou » Thu Apr 09, 2015 4:13 pm

How about printing without computer? I mean print offline with SD card.

vad7
Posts: 28
Joined: Sun Mar 29, 2015 1:08 pm

Re: LCD display shows garbage characters sometimes

Post by vad7 » Sat Apr 11, 2015 10:05 pm

Garbage characters do not appear a few days.

A new problem have appeared.
The computer often lost connection with the printer.
Often during the beginning of the second printing.
I reconnect USB and print successfully.

vad7
Posts: 28
Joined: Sun Mar 29, 2015 1:08 pm

Re: LCD display shows garbage characters sometimes

Post by vad7 » Wed Apr 15, 2015 2:10 pm

I have replaced USB cable. Now works fine.

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