Schematics for Philips Video 40 CCTV camera

[old_tv_nut]

Originally Posted by zapro

Update 2:

Tried connecting my two Video 40's to my TV's CVBS input and a video capture card.

All i get i a grey screen.

Looking at the BNC connector, my cameras puts out this:



Waving my hand in front of the lens does change the video signal a bit on the scope, but still does not show up on a TV.

Something seems fishy! The sync is inverted ???

Maybe the output signal is not CCIR standard video ?

// Per.

The sync and blanking is quite normal (negative sync on baseband video). "black" level should not be so high, and obviously you should have a much bigger peak-to-peak video swing.

Edit: do you have a lens on the camera? If not, the automatic gain will set the general video level to 50% as you see.