It's seems i have something missing. It was lost i think by previous user. Also i didn't care too much too. The problem is that next week visiting tuner which gonna update my current setup, also fix some problems. So before that wanna buy "that" missing part (if possible) and inform tuner also.
Looking on schematic here: http://www.vems.hu/files/genboardv3/v3.3/v33_bottom.pdf
it says C78. Can anybody provide more info regarding this "part"?
Image: http://imgur.com/a/VvvTj
Its a 1K resistor
C78 on a v3.3 board is a 10uF capacitor which is part of the filter for the analog 5V circuit.