Sega Genesis 2 issues

[rayearthknight]

I have a Genesis 2 that makes a buzzing noise when it's turned on...well ,the audio has a loud buzzing, regardless if I use A/V or RF connectors...anyone out there know what's causing this?

[MegaDrive20XX]

Sounds like a power supply issue. Are you using the original Sega brand PSU?

If so, check the connection and wire itself to the PSU