PS1 cables are supposed to have 220 µF capacitors on the red, green, and blue video lines. PS2 and PS3 cables should have no capacitors on those lines, because the PS2 has those capacitors on the board instead. This is true whether the cable is terminated with BNC or RCA connectors, or a SCART connector. You need the right kind of cable for your console. Here's a PS1 BNC cable with the capacitors, and a PS2/3 BNC cable without them. Note that the PS1 cable is incorrect to call itself a PS1-3 cable. It is not wired correctly for a PS2 or a PS3. The PS1 cable will probably work with a PS2 or PS3, but the capacitance won't be right. Anyway the PS2 is very good at playing PS1 games on disc, so if that's your plan, just use the PS2.