gaz2313

hi all looking for ideas or solutions i have 4 vista vips 35ds ptzs but i have hit problems powering them its a home installation on my remote farm i am using for a psu a 25A 24v AC transformer which i thought would power these fine but the problem i have is that it doesn't lol when i connect them to the supply individually they all work perfect connect them all to the supply and the video drops and they become totally unstable just using a cheap 16 ch dvr for recording and ptz functions other cams work fine when on this transformer the vips cameras work fine when connected individually to the dvr with seperate 24v psu units from the little ptzs but these little psus (2A) cant supply enough power at night when the huge infra reds come on (awsom can light up a tractor in the field 200yds away ) any ideas anyone why they dont work when connected to the common supply ( they power up through the tests fine and sit with the infr reds on but no useable pics each cam has between 24.4 and 24 .6 v at the camera all cam leads are connected blue to blue and white to white at the transformer )

hi anyone out there have any info on these cams I have the user and installation info but I am looking for cct diagram if possible to find out what I have damaged the cam has 2 infra red units attached and at night the center of pic is too bright to view at anything under 50 mtrs and the infra reds just plug in to the board with a 5 pin connector so I had a bright idea just unplug one of the infra reds after I did that neither infra red worked nor when I re connected it so I guess its a bit more complex a setup and I have blown something the lead to the infra reds have 5wires red power + yellow -ve black and blue to ldr and green I don't know what this should have on it but I am guessing this is the control wire to turn the leds on and off any one any ideas I have tried vista tech support but they do not have any tech info just the user man on the board that the leds plug into there is an opto isolator and a comparator chip anyone know if these are easy to destruct by just unplugging a device and yes I did power down before disconnecting lol it just didn't like being powered up with only one connected