Why do some images go very bright occasionally when using the Osprey 100?
A4.4 – This is due to video inputs with no video signal present. The Osprey 100 is based on the Fusion 878A chip. This chip has design flaws relating to the AGC (Automatic Gain Control), which cause the chip to try and calibrate itself to a non-existent video signal. Under normal operation this is not noticeable, however when the chip is made to switch inputs rapidly, this effect happens far more often, and frequently the chip has insufficient time to “come back down” from this excessive AGC adjustment, causing over compensation. The solution is to disable any video inputs that are not being used.
