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Bad LCD Screen
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Description

I just replaced a LCD screen on a alpha Taz7 for not registering any touch inputs. I took it up be checked by Mark and he confirmed that there was something wrong with it but could not fix it. Replaced the LCD screen and everything seems to be working now on the machine.

Do we want to consider testing every LCD screen as discussed in T4065? This is more of a question for beta and if we do see any more fallout from the LCD screens.

Event Timeline

oliver created this task.Dec 13 2018, 9:32 AM
oliver created this object with edit policy "LulzBot Hardware Products (Project)".
oliver updated the task description. (Show Details)Dec 13 2018, 10:05 AM
west added a subscriber: west.Dec 17 2018, 7:31 AM

Testing the LCD's would be a good idea. We are going to see fallout no matter how perfect the part is

logan assigned this task to kent.Dec 17 2018, 7:42 AM
logan added subscribers: kent, Steven, logan.

@kent @Steven
Do we want to test LCDs individually prior to install or no?
It was previously determined on T4065 that we would not, but once fully assembled it is a bit difficult to remove the LCD assembly alone.

tutley added a subscriber: tutley.Fri, Jan 18, 8:51 AM

@kent @oliver @logan We only saw the 1 bad LCD?

logan added a comment.Fri, Jan 18, 8:53 AM

AFAIK Yes so far
I don't think plugging them in for a test once they are assembled should be too big of a deal though. Really we'd be testing 2 things; LCD and LCD board.

tutley closed this task as Resolved.Fri, Jan 18, 8:54 AM

agreed. I am closing this one down. If this crops back up for Beta builds/production we can re open

logan added a comment.Fri, Jan 18, 9:46 AM

@tutley Should I open another ticket for a test module/process for testing LCD assemblies?

@logan Sure! I think just an archim rigged up with some firmware/thermistors, etc. to run the LCD, and you can just plug the assembly in and boot it up to make sure it powers on and the digitizer and everything functions properly before it gets installed into a chassis

logan added a comment.Fri, Jan 18, 9:57 AM

@tutley Yeah I had in mind essentially the same thing we're using for TAZ 6. I might try to put an Archim in a TAZ 5 case so that the fixture doesn't take up any additional desk space.