Dreamcast wont power on

did you tested another dreamcast control...you had the same problem...so you have to check the protection Fusistor inside your dreamcast conector controller board....it seems like a blue or green normal resistor...marked as F1 on the board..change it with a simple fuse or an smd fusistor...Good Luck!

you need to replace the hdd[hard drive]

have you try getting a new audio and video cable? it might meant its time for a new one.

Be sure to check that your power outlet is supplying enough power by plugging in another game console or even something like a DVD player into the same outlet.

Also try finding another power cable and try that.
Cables can be worn out through time and cable failure can be common.
Dreamcast power cables are a standard type and can be found on other machines like boom boxs, DVD players or simply sold as generic replcament power cables.

If your outlet works fine for other machines and the Dreamcast continues this problem with other power cables then it is safe to assume that the power unit in the dreamcast is damaged somehow.

In most cases this would warrent a replacment.
Used Dreamcasts are cheap and not hard to find.

I do not suggest salvaging another power unit from another machine as this can be harder than its worth overall.

the surface mounted fuse on the motherboard might be fried up if you have a technical background try to override the blown fuses by soldering a wire on it

i'll post more information about that tomorrow because my notes are at home (i'm at work hehehe)

I'm having the same problem and unsure if this could be the answer......
http://www.gamefaqs.com/console/dreamcast/file/916412/9835

madarchod band kar de ......from ayush yadav lps lko

take apart your dreamcast and look at the controller input circuit board, there should be a big resistor on near one of the boards corners, make a note of the coloured bands and buy a new resistor with the same pattern and replace the one already on the board with the new one.

First off, NEVER store a game console on top of a subwoofer. It is like a giant magnet, and electronic devices do not handle magnetics. I don't think i've ever heard of a VGA box, Sega brand or not, killing a console. Millions use aftermarket AV cables and adaptors on all consoles without problem. I think it likely died from being on top of the sub. Relocate it and you should be fine. Running it for a few hours isnt likely either unless you had the vents entirely blocked.
To the guest who's drive isnt spinning, I would say your drive motor has burnt out. This doesn't indicate a defect in Dreamcasts, per se, it just means bad luck or excessive dust which killed it. Either buy a different Dreamcast or see if you can find a drive replacement.
Hope this helps.

If you unplug you Dreamcast for extended periods of time the battery in your Dreamcast that saves that info will die (its suppose to last a month but over time they will wear out and not last at all). After 1 hour of gameplay (assuming the battery is still working, as Li's wear out) the battery will be fully charged and last a month.