Spotted this while walking out for supper after a day at the CNC Workshop:
Motel LED sign glitch – 1
Then it got worse:
Motel LED sign glitch – 2
The lower left block remained fixed throughout the glitzy scrolling / rolling / blinking updates in the sign’s repertoire:
Motel LED sign glitch – 3
The affected block is 64 pixels tall and, at a guess, 128 pixels wide. Looks like a module enable failure…
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#1 by madbodger on 2015-07-19 - 09:44
Some of those modules are driven serially and daisy-chained, so a single break in the data chain could also cause this behaviour.
#2 by Ed on 2015-07-19 - 11:26
Aye, and in that case, it’s always the connector!
A few days later it was OK (at least on one side), so either a repair crew levitated up there or the mice moved out…
#3 by tantris on 2015-07-19 - 17:11
Could be weather related.
Bad connector, exposed traces, or anything that doesn’t like water and then wind, rain, and some bad seal. A day or two with a couple hours of sunshine would also “fix” it again.
Don’t blame rodents if you can blame an engineer…