Question about Sega Genesis Console

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Power, But No Picture!

I encountered an odd problem with my Sega Genesis. Normally, when I turn the system on, even if there is no cartridge inside the system, the screen turns from blue to black. It doesn't do that anymore; it stays blue, and there is no change at all. I tried using different adapters, but that didn't work. I tried switching TV's, but that didn't work. So, I bought another one off Ebay, and I have the same problem on both TV's. The Genesis came with new adapters, except a Genesis power adapter, so I used another one. The new genesis came with a broken RF adapter [It won't fit the slot], and a Composite adapter that fits. The only thing that I had to re-use was the power adapter. What could be the problem? The red LED on the genesis turns on when I press the power button, so I don't think power is a problem.

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  • Anonymous Mar 07, 2009

    Power YES, Picture NO!

  • Anonymous Mar 07, 2009

    O.K, My system is hooked up, but EVERY time I turn it on IT DOES NOT WORK! Well, I mean the system has power, but no Picture! Somebody PLEASE help me!

  • hampton0531 Mar 16, 2009

    thats exactly whats happened to me
    i plugged my genesis up today and it has power the red light comes on...but i se nothing but a black screen

  • Anonymous May 22, 2009

    same problem, mine is a version 2 and the screen does go black. i know my games and cords all work, as i just hooked them up to my nomad.



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Try moving the a/v or rf cable in the back of the genesis

Posted on Jun 13, 2009

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I encountered a similar problem a few years ago. The television that I was using did not have a coaxial (cable) line, so I had to us an adapter I have purchased at walmart to change the R/F adapter to RCA style A/V. Turned out that the problem was that this was bad.

So, My guess (given that you have used two televisions, and two different SEGA Genesis consoles) that thr problem would have to be something between the two that they would have in common.

My only other possible solution, would be that maybe the A/C adapter is functioning, but not properly. You could test it with a digital multimeter to make sure, or replace it with a universal A/C adapter, and adjust the voltage to 12 volts.

Posted on Jul 04, 2009


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To clean your cartridges, simply use rubbing alcohol and Q-tips to scrub the connector pins clean. You will notice lots of dirt coming off onto the Q-tips. This will take many Q-tips.

This is important! Once you clean your cartridges, you still need to clean the connector inside your Genesis. Here's how:

First, get a can of compressed air. Blast air into that cartridge connector to remove any loose dust, dirt, or debris. Chances are, you'll still need to clean more.

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