You mean there isn't any pass through filter or separater, such as LM1881, etc for composite video to RGB color in your adapter. Does this adapter has RGB control knob to get perfect white?
I'd like to see detail picture and know the features about this adapter.
On the adapter there aren t any control knobs for rgb because you normally have those on supergun side and arcade monitors side.
The sync stripper is not in the adapter because usually TV and arcade monitors accept without problems videosync.
If I understand you have a predominant colour so even If you put a sync stripper you don t solve it.
You have definitely to adjust the colour pots.
