PDA

View Full Version : Need Help Fixing Genesis 1



SegaG12
01-09-2015, 10:33 PM
I accidentally plugged my NES power supply (9v 1,3a AC) into my Genesis. The red power light comes on with it plugged in, but there is no signal to the TV. I then tried a 9v DC power supply and the red power light does not even come on. Does anyone have any info that might help fix it? I purchased this cheap ($10) hoping it would work, but I may have messed it up myself. :grumble:

I have tested voltage to the main board with my multimeter and the main board is getting power through the red and white wires. I have searched around and it appears the voltage regulators may have been damaged. Hoping someone on here know what the left terminal (input) voltage is for a good working console.

Really want to get this fixed. I have been looking on the cheap for one of these for a while. Thanks in advance for any ideas or suggestions.

SegaG12
01-10-2015, 12:02 AM
I checked the two voltage regulators and find no power on the left terminal while using the middle leg as ground. I guess I need to know what supplies the regulators...anyone know?

8-Bit Archeology
01-10-2015, 12:54 AM
Welcome to the Roundtable!

There's a Restoration forum on here http://forum.digitpress.com/forum/forumdisplay.php?22-Technical-and-Restoration-Society
I'm sure there's more than one instance of power issues. I got a Sega Master System that would light but not work. I replaced the regulator and it fixed my issue. Dont know if it's the same with Genny's G1's.

Anyhew here's the regulator if you where needin one.


http://console5.com/store/7805-5-volt-regulator.html

SegaG12
01-10-2015, 01:02 AM
Welcome to the Roundtable!

There's a Restoration forum on here http://forum.digitpress.com/forum/forumdisplay.php?22-Technical-and-Restoration-Society
I'm sure there's more than one instance of power issues. I got a Sega Master System that would light but not work. I replaced the regulator and it fixed my issue. Dont know if it's the same with Genny's G1's.

Anyhew here's the regulator if you where needin one.


http://console5.com/store/7805-5-volt-regulator.html


Thanks I will check that thread and see what I can find.