Hi...
I have a DCE (i think) scandoubler-flickerfixer, close to this one of the pic but in a transparent case.

Well i have some problems with it, first and the most important (in my opinion), temperature, sd/ff reach very hight temps in 5-10mins of runtime, second is all the noise and interferences in screen, im tryying with some monitors all of them CRT with the same result. Anyone with this sd/ff and same problem or know how to solve it?
This sd/ff have 2 leds one for signal by-pass and one when ff is active, a switch is present behind VGA connector, what make this switch?
Thanks.