Kristian Lam wrote:asuhantsev wrote:Follow up: that happened after I connected both ext monitor and a camera to the same v-mount battery. Not instantly, but in the same time frame. Have I fried it? Dug up some information and it seems common that connecting both monitor and camera to the same battery (and then connecting them by hdmi) my cause some damage.
If so, is that a pricey repair? Anyone with experience of frying hdmi's?
Do you have a photo of the V-mount battery and which connections you'd used for the ext monitor and camera?
What make/model is the external monitor?
Do you remember the sequence of connection and the sequence the devices were powered on?
As for sequence of connection, I was trying different setups constantly plugging/rearranging parts.
Monitor is Liliput FS7 and the battery is Dynacore DM95S. Both camera and monitor were connected to switronix v mount plate with two d-tap outputs - one [d-tap-dc pin] for monitor, and one [d-tap-2pin] for the camera. It seems to me that the cable powering the monitor was wrong polarity before I re-soldered it the right way. If that's true, how can that send a voltage through the hdmi? Also different people with the same issue (I can provide links if that's okay here) havent come to the conclusion on what's the problem. As far as I know I'm the only one who soldered my own d-tap cable for monitor when hdmi went off. For clarity: there weren't smoke or smell, and no apparent heating of some component. What (besides polarit) I can look into when making my own cables to make them safer, if that's a cable issue?
How I can, in the future, be safe with powering both monitor and camera through the same v mount plate? Power monitor through 12v line off the higher quality plate and not through d-tap directly? (monitor can handle 16v just fine) Connect devices with hdmi before connecting them to the battery?