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Annke CCTV has died

My Annke CCTV was working fine till I stupidly plugged a USB mini fan into it. The fan ran for about 10 minutes then stopped and now I have no power at all to the cctv.

I’ve taken board out and where the power goes in there is a large black square component. Can anyone tell me if its a fuse. The supply is 48volts. There is no continuity across this component.

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Hi @boness

TVS - This is a TBS - Transient-voltage-suppression diode

I see it is powered by an external power adaper.

Do you have a multimeter?

Measure and check on if the power adapter is giving the out correct voltages.

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Commenti:

Hi, thanks for your reply. I have checked the psu and it is working

da

take more pics , showing up the whole mainboard.

try removing the mainboard and check if there are any burnt components

da

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Gordon sarà eternamente grato.
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