Sega Genesis help!

[chrishavius]

Hey guys,

My Genesis/Sega CD started making a really loud humming sound through the TV speakers any time it was on, there would also be rolling lines moving up the screen pretty much all the time.

I had it hooked up with an RF switch, then changed to an AV cord, but there was no change.

Any ideas?

[dendawg]

If your Sega CD is a model 1, do you have the metal plate that goes between the Sega CD and Genesis installed? I think that's supposed to help cut down on RF interference.

[chrishavius]

Yea, the plate is installed, and I made sure its fully in position, still no luck though - any other suggestions?

[j_factor]

Are you getting the audio out of the headphone jack, or the a/v hookup? Do you have the mixing cable hooked up?

[thunderkid]

Are you using the official AC adapter or a third party one?

[MachineGex]

Are you using the official AC adapter or a third party one?

Yeah, I would switch out the power supplies one at a time. You might as well start by dis-connecting the sega-cd from the genesis and test the genesis by itself to see if the problem is with the Sega CD or the Genesis.

[bacteria]

Sounds like it might be the RF box failing. They do after several years. Might be worth popping off the RF box lid and having a look, might be a capacitor going a bit brown or the top not flat, etc; needing changing.

[MachineGex]

Sounds like it might be the RF box failing. They do after several years. Might be worth popping off the RF box lid and having a look, might be a capacitor going a bit brown or the top not flat, etc; needing changing.

Can't be the RF since the OP said it does it with the AV cable as well. Seems to be a bad power supply.

[chrishavius]

It was the A/C!! Switched it out and problem solved, thanks guys!!!