247 wrote:But the question is : the problem are the pins?or the laser is wearing out?
What exactly is the Dreamcast doing? "Resetting" can mean a number of things. Does it just go back to the main menu or does it play the boot up animation? Also, does it reboot immediately or do you see a back screen first? I had a Dreamcast that would randomly go to a black screen and then completely reboot after a few seconds. Turned out the fan connector was loose. If the fan turned off, the Dreamcast would reset.
To summarize the symptoms and causes:
Immediate reboot to boot animation: Power supply
Black screen / no signal and then boot animation: Fan
Reset to main menu with no boot animation: GD-ROM drive