Texecom veritas LCD panel dead

[dyimk]

Hi all,

So I woke up and the LCD panel was all dead. I bought a new battery and replaced it but the LCD panel just makes weird noises and doesn't show power light or anything. Would it be possible that the LCD panel is dead? Could it be a power cable, but nobody touched anything? Which cable from the picture is power one?
Thanks

 

[jurassic sparkk]

Contacts will need cleaning at the lcd connector.

 

[dyimk]

How do I clean these Contacts? I already cut the wires and connected them properly because the way how it was connected before is beyond comprehension levels

 

[sparkymarka]

You do know the neutral wire is out of the 240 supply terminal block ?

 

[dyimk]

I've put it back, I had to do it at the beginning, When I opened the box, the alarm went off like crazy (LCD panel was dead so I couldn't type PIN). I figured pulling blue cable stopped the alarm. Now I learned I can pull out black connector with the fuse and it stops it too.
Long story short, I replaced the battery but the LCD panel is still dead, just making some weird noise.
Question before buying a new LCD panel is how to prove it's dead? I would assume white cable should be checked if it delivers 12V?

 

[sparkymarka]

Wire the keypad via a piece of cable direct onto the panel ….

 

[dyimk]

which one I can use on the panel? Can I use just one cable to the keypad where it says 12v?

 

[dyimk]

I connected it using SW+ directly from the panel with one cable replacing white one, I guess this should power it on right?
Seems like keypad is dead

 

[secureiam]

Just hold on a second.

SW+ is programmable and not what was meant by wiring the keypad direct to the panel.

The keypad requires 4 wires or cores as they are referred to and that is one cable of at least 4 cores.

So to eliminate a dodgy cable, wiring a short new cable to the keypad terminals +-TR to the panels +-TR is what is required.

 

[dyimk]

So I connected it directly to the panel like "secureiam" said and the keypad works so this points straight to the cable, but why would it stop passing electricity, it's in the wall, nobody touches it? I need to buy Multimeter Tester to test endpoint connection, maybe it's less than 12v for some reason and it's not enough to power keypad or maybe there is no electricity at all for some reason, buahh

 

[dyimk]

Well for now I used blue and yellow cables instead of white and green and it's working.
How difficult is it to replace this cable?


Thanks guys for your help