Jump to content
Sign in to follow this  
felicitus

UltiController Backlight Issue - Flickering, then Dead

Recommended Posts

Posted · UltiController Backlight Issue - Flickering, then Dead

Hi,

we've just built the UltiMaker. However, after a while (about 1 hour), the display's backlight started flickering, then went dead. It seems that there's an error on the LCD, any suggestions what to do?

Thanks,

Felicitus

Share this post


Link to post
Share on other sites
Posted · UltiController Backlight Issue - Flickering, then Dead

Clarification of "Flickering": The backlight turns off and on again in short intervals (>300ms) and sometimes stays off or on - this happens during the operation. This might be a cold soldering joint.

Share this post


Link to post
Share on other sites
Posted · UltiController Backlight Issue - Flickering, then Dead

If it happens after an hour, it could also be that the 12V regulator is very slowly overheating.

Share this post


Link to post
Share on other sites
Posted · UltiController Backlight Issue - Flickering, then Dead

I assumed that the UltiController doesn't use 12V. Can you confirm that it really uses 12V?

Share this post


Link to post
Share on other sites
Posted · UltiController Backlight Issue - Flickering, then Dead

The Arduino uses 12V to make the 5V for the UltiController. You could try plugging in an USB cable to a computer, just to test. If the problem is gone then, then it's the 12V regulator.

Share this post


Link to post
Share on other sites
Posted · UltiController Backlight Issue - Flickering, then Dead

Then the most likely cause becomes a bad connection or bad cable.

Share this post


Link to post
Share on other sites
Posted · UltiController Backlight Issue - Flickering, then Dead

I believe it is a manufacturing fault. In order to proove this: Which of the pins is responsible for the VCC of the backlight? Are there schematics available so I can debug prior claiming warranty?

Share this post


Link to post
Share on other sites
Posted · UltiController Backlight Issue - Flickering, then Dead

Yes, schematics are available.

This is the PCB of the Ultimaker itself:

http://www.reprap.org/wiki/Ultimaker%27s_v1.5.4_PCB

You will have a 1.5.6, but the differences are not that great, the main difference is a jumper "ARDPWR" between the 12V line and the Vin of the Arduino.

The UltiController is the same as this:

http://www.thingiverse.com/thing:15081

You should contact support if you suspect faulty hardware. (support is always quite busy, so the more info you can give them, the better and quicker you get a response)

Share this post


Link to post
Share on other sites
Posted · UltiController Backlight Issue - Flickering, then Dead

The issue has gone away - so I finally have no idea what could have caused it. Probably a bad cable or something.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×
×
  • Create New...

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!