Service Manual
- Service Manual
- Jungle Chip: AN5306NFBS
- OSD Chip: M37266ME-XXXSP
RGB Mod
Please note this is a work in progress and hasn't been tested yet.
RGB lines coming out of OSD chip IC700
- R=Pin 54
- G=Pin 53
- B=Pin 52
- Blanking = Pin 51
RGB lines coming into IC201(AN5306NFBS)
- R=Pin 69
- G=Pin 68
- B=Pin 66
It appears that the OSD is outputting 5.5V on the RGB lines and the Jungle chip expects .71V on the RGB lines.
This means that a 251ohm resistor (or a standard 250 ohm resistor) should be used for the RGB external resistor.
For blanking the OSD outputs 4.5V and the Jungle chip expects 2.0-3.5V. It appears that the voltage is dropping to 2.0V based on voltage divider and the inline diode. So it appears 2V is needed to enable blanking.