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LCD display on EST2 Fire Alarm Panel only display black boxs ... how to fix

cesarm507

Dec 8, 2016
1
Joined
Dec 8, 2016
Messages
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hello guys so my est2 display went crazy now I cant read any troubles.... only thing I see is 2 line fill with black boxes. so I said to my self screen is bad let me buy a new one..... got another one from eBay and the same thing. can anyone help me out here. how can I get this thing back o normal. what is wrong with the system...
 

davenn

Moderator
Sep 5, 2009
14,254
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Sep 5, 2009
Messages
14,254
hi there
welcome

hello guys so my est2 display went crazy now I cant read any troubles.... only thing I see is 2 line fill with black boxes. so I said to my self screen is bad let me buy a new one..... got another one from eBay and the same thing. can anyone help me out here. how can I get this thing back o normal. what is wrong with the system...

I suspect you will have to contact the manufacturer for help
 

BobK

Jan 5, 2010
7,682
Joined
Jan 5, 2010
Messages
7,682
This is what that type LCD display does if it does not get the initialization code. I suspect that the problem is not with the display, but with whatever is trying to communicate with it.

Edited to add: Actually it can also look that way if the contrast setting is too high. Is there a contrast adjustment?

Bob
 
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