Sdogeinnarg

Hello all, First time posting here and I'm certainly no expert, I'm just looking for some quick advice. We had a four camera system installed a little over 18 months ago and one of the cameras seems to be playing up. Can anyone first confirm whether it is certainly a hardware issue from the picture below (this poor quality image only comes on intermittently, then it goes to a black screen of no signal)? in which case, would it be a case of a replacement needed? Following this, would anyone be able to suggest where I could find a matching replacement? (I'm in the U.K.) The company we used would charge £300 for a new camera, plus probably about £125 - £200 to fit it - which all in all, I feel is pretty steep. If I can't find an exact match, I'm guessing I can mix and match something with pretty much the same spec? Thanks a lot for any help in advance!

Rightio, thanks a lot for these steps, really appreciate it. I'll have a crack at it when I have some time on my hands. We're in West Yorkshire ?

Thanks for the feedback! Right that would make more sense - I would be suprised if the camera was playing up so quickly! Yes it is pretty accessible, a few steps up a ladder and I can access it. What would you suggest in this case?