Have you actually tested this in a Euro scart socket? It seems likely to me that this RGB lead is of the japanese standard, with different pinout than the Euro Scart.
wups, my misstake. no i have not tested it on a european tv.. this is the 21pin JP version that differ from European version.. but adapters are available and modifications to the cable can be done. Mod to the cable can be done by one self: INFO