Standard sync settings to try are setting H-PLL Pre-Coast and Post-Coast to 3 and tweaking Analog sync Vth. Keep Analog sync LPF at default 2.5Mhz.
Ok 🙂 I will start testing …
Can you post some pictures of the resistors in the cable? The drawing you posted of the SCART pinout has only 100 Ohm resistors which are not enough
The scart end is glued together but I wrote the company that produces the cable and they got back very quickly:
“The resistors value are 100ohm(in RGB signals and Sync) and 470 ohm between pin 8 and 16 for RGB activation singnal.”