Not necessarily. SCART cables are bit like the wild west and without knowing exactly how it was built we can't say whether or not it will work without modification. What we can say is out JAG2GEN adapter attenuates CSYNC with a 680 ohm resistor and 220 uf capacitor. All RGB signals are unfiltered as the Jaguar does not require further filtering. This information should be adequate to help you figure out whether or not your SCART cable will work with the JAG2GEN without modification.