This is a typical system using catridges based on the different chipsets developped by General Instruments in the late 70s. Each GI chips was able to generate several games, ball games for a start, then later car racing, motorcycle, submarines, tanks and shooting games.
The system has two hardwired controllers with one analog joystick and one fire button each. The control panel is composed of 10 orange buttons to select the different games offered by each cartridge (10 being the maximum). Difficulty switches, power knob (acting as a volume control as well), service auto/manual switch and a start button can also be found.
First systems were produced without connectors for the rifles. But from 1983, and for a small fee, you could send back your console to Rollet and they would add the light gun connectors ! But what is strange is that most systems without these connectors, had however the holes drawn and marked on the plastic case, just as if there were planned from the beginning...
The Rollet Video Secam System 4/303 was sold in France at the start of the 80's. It was marketed as a console for children, rather than a "serious" gaming system. Rollet also sold at the same time the Videocolor, another system for kids, completely different from the Video Secam System, but which is also refered as 4/303 (on a label below the system)! Weird... The Rollet Video Secam System 4/303 was also sometimes referenced as the Rollet Tronic...
On the electronic board of the Video Secam System is written "SD-050s". Once again, we have a system being part of the SD-050 big family conceived by Soundic. Many brands, european for the most, bought these systems and sold them with their own brand name and sometimes even original case (like here with the Rollet Video Secam System). Notice that Soundic also produced SD-070 and SD-090 systems, all compatible with the SD-050 family.