Hi, I did not measure the resistance to ground, but I would expect it to be very high, kOhms or more. The fuse sits in the positive supply and that should show a very high impedance to ground. Your measurements do indeed point at shorts or other faults.

Hi Guilevar,

The O on the fuse most probably refers to the current rating, I believe this is 2.5A. Different manufacturers will use different codes for the same rating. In fact the spare part I fitted has a T on it but it is a 2.5A fuse. The only uncertainty is about the speed rating for the fuse (quick-blow, slow-blow/delay). I have no way of identifying this from the original part, but I decided to fit a “slow-blow” type - I didn’t want having to go through this again…

So far the camera is working fine, it would be a shame having to replace it.

Best regards,

Tom