bradhig Posted June 3, 2012 Share Posted June 3, 2012 My model 2 genesis has a problem with the power supply connector. If it gets moved or knocked the power goes off and I have to jiggle the power connector sometimes to get it to work. Most of the time it works. Is this common with model 2s ? Quote Link to comment Share on other sites More sharing options...
genesisguy Posted June 3, 2012 Share Posted June 3, 2012 Yeah I've had that happen before. The other big issue with model 2s are failing reset buttons. Quote Link to comment Share on other sites More sharing options...
+wood_jl Posted June 3, 2012 Share Posted June 3, 2012 My model 2 genesis has a problem with the power supply connector. If it gets moved or knocked the power goes off and I have to jiggle the power connector sometimes to get it to work. Most of the time it works. Is this common with model 2s ? I'm no expert, but I had this happen to a model 2 Genny as well. The solder had cracked or come loose where the connector was soldered to the board. Even with my ham-fisted "technique" and lack of experience, I was easily able to "reflow" the solder in the joint and fix it. That's likely what it is. Although I had not heard of anybody else having this issue, both yours and mine make 2!!! It's an easy fix. 1 Quote Link to comment Share on other sites More sharing options...
Csonicgo Posted June 3, 2012 Share Posted June 3, 2012 Sounds like the dc jack might be damaged. I had this happen with a Model 3 Genesis. Quote Link to comment Share on other sites More sharing options...
ApolloBoy Posted June 4, 2012 Share Posted June 4, 2012 It's definitely the solder joints connecting the power jack to the board, very common problem with the Genesis 2 and one that's super-easy to fix. Just reflow the joints, add a little extra solder to them and you're good. 1 Quote Link to comment Share on other sites More sharing options...
the.golden.ax Posted June 4, 2012 Share Posted June 4, 2012 Wood and Apollo are 100% correct. All Genny 2 sooner or later get dry solder joints in the power pins. Just heat up your soldering iron and melt them back in place. Quote Link to comment Share on other sites More sharing options...
Oge Posted June 4, 2012 Share Posted June 4, 2012 As you reflow the solder, apply a bit of silicone between the DC Connector and the PCB to prevent the same issue happening soon Cheers, Oge Quote Link to comment Share on other sites More sharing options...
bradhig Posted June 12, 2012 Author Share Posted June 12, 2012 (edited) I reflowed the solder and it works jiust that hitting the power connector causes it to go out. I have a model 1 now but it has a third party power supply causing it to make a buzzing sound when playing games. Edited June 12, 2012 by bradhig Quote Link to comment Share on other sites More sharing options...
madmax2069 Posted July 7, 2012 Share Posted July 7, 2012 (edited) I had this happen to two model 1 systems. One was just cracked solder (my original, bought new), the second one had ripped pads (bought used for a friend). My original lasted about 5 years when it developed this, reflowed it and has worked ever since. Yeah I've had that happen before. The other big issue with model 2s are failing reset buttons. The model 1 are good for this even new, my original model 1 reset button never worked until I fixed the issue I mentioned above. I only found out that it worked after I fixed it due to a friend pressing it, before that it never worked. It had to be a alignment related issue. The second ones reset button didn't work either, and didn't work after I fixed it either. Most of my friends owned a model 1 with a reset button that did not work. Edited July 7, 2012 by madmax2069 Quote Link to comment Share on other sites More sharing options...
Zap! Posted April 25, 2015 Share Posted April 25, 2015 My model 2's power jack broke of, it can not be fixed. Any where I can get a replacement? eBay was a no go. Quote Link to comment Share on other sites More sharing options...
+save2600 Posted April 25, 2015 Share Posted April 25, 2015 My model 2's power jack broke of, it can not be fixed. Any where I can get a replacement? eBay was a no go. Not a total waste. Follow the traces and solder new wires(leads) from them to your power supply. Just make sure you observe polarity. You'll have a tethered system from here on out, but better than nothing! Quote Link to comment Share on other sites More sharing options...
Zap! Posted May 25, 2015 Share Posted May 25, 2015 Not a total waste. Follow the traces and solder new wires(leads) from them to your power supply. Just make sure you observe polarity. You'll have a tethered system from here on out, but better than nothing! It was totally shot pulling it off. There has to be someone selling one out there somewhere. Quote Link to comment Share on other sites More sharing options...
mickcris Posted May 26, 2015 Share Posted May 26, 2015 (edited) One of these should be correct (EIAJ-03 size) http://www.mouser.com/Connectors/Power-Connectors/DC-Power-Connectors/_/N-axitt?P=1z0wxcvZ1z0wxc9 Although I have seen some people say that it is EIAJ-02 size so im not 100% sure, but i think that EIAJ-03 is correct. Edited May 26, 2015 by mickcris Quote Link to comment Share on other sites More sharing options...
WeWantWaffles Posted May 26, 2015 Share Posted May 26, 2015 It seems I have the same issue. Some games work, some games don't work. After moving the power chord, some of the games do start working again. Moving the chord during gameplay will shut it off as well. Glad I read about this topic on time. Quote Link to comment Share on other sites More sharing options...
Nutsy Doodleheimer Posted May 26, 2015 Share Posted May 26, 2015 I don't know what it is with Model 1 and 2 Genesis systems with reset buttons. But they are always flimsy and are intermittent to work or not work. Never had issues with model 3 reset buttons. Quote Link to comment Share on other sites More sharing options...
Zap! Posted May 27, 2015 Share Posted May 27, 2015 One of these should be correct (EIAJ-03 size) http://www.mouser.com/Connectors/Power-Connectors/DC-Power-Connectors/_/N-axitt?P=1z0wxcvZ1z0wxc9 Although I have seen some people say that it is EIAJ-02 size so im not 100% sure, but i think that EIAJ-03 is correct. I would order right now if you were 100% sure, and which one of those four is the right model 2 one? Anyone? Quote Link to comment Share on other sites More sharing options...
mickcris Posted May 27, 2015 Share Posted May 27, 2015 (edited) look at yours and compare to the data sheets. my best guess is this would be the right one: http://www.mouser.com/ProductDetail/CUI/PJ1-021/?qs=sGAEpiMZZMtnOp%252bbbqA009lE0K0K%252bPZGlE0pbmuf9ygyMI6o1CyX6A%3d%3d I am about 99% sure its right size (EIAJ-03). This would be if the OD of the connector is 4.75mm and not 4.0mm. If you have something you can measure the plug on the power adapter with to verify you can be certain. I should have measured mine this morning when I was home, but i forgot. edit: Found this which verifies the EIAJ-03 size http://www.db-elec.com/home/technical-info/Genesis/power-supply http://www.bordersdown.net/threads/93401-Sega-Power-Supplies-for-Mega-Drive-Mega-CD-32X-Master-System-Game-Gear-etc?p=1832111&viewfull=1#post1832111 Edited May 27, 2015 by mickcris Quote Link to comment Share on other sites More sharing options...
Zap! Posted May 29, 2015 Share Posted May 29, 2015 look at yours and compare to the data sheets. my best guess is this would be the right one: http://www.mouser.com/ProductDetail/CUI/PJ1-021/?qs=sGAEpiMZZMtnOp%252bbbqA009lE0K0K%252bPZGlE0pbmuf9ygyMI6o1CyX6A%3d%3d I am about 99% sure its right size (EIAJ-03). This would be if the OD of the connector is 4.75mm and not 4.0mm. If you have something you can measure the plug on the power adapter with to verify you can be certain. I should have measured mine this morning when I was home, but i forgot. edit: Found this which verifies the EIAJ-03 size http://www.db-elec.com/home/technical-info/Genesis/power-supply http://www.bordersdown.net/threads/93401-Sega-Power-Supplies-for-Mega-Drive-Mega-CD-32X-Master-System-Game-Gear-etc?p=1832111&viewfull=1#post1832111 Thank you for your help, I just ordered it for $8.72 shipped. I will let everyone how it turns out. Quote Link to comment Share on other sites More sharing options...
mickcris Posted May 29, 2015 Share Posted May 29, 2015 Thank you for your help, I just ordered it for $8.72 shipped. I will let everyone how it turns out. It sucks when the shipping price is almost 10x what the price of the part is! It should be right if you verified the footprint was the same. Quote Link to comment Share on other sites More sharing options...
Oge Posted June 30, 2015 Share Posted June 30, 2015 I reflowed the solder and it works jiust that hitting the power connector causes it to go out. I have a model 1 now but it has a third party power supply causing it to make a buzzing sound when playing games. Are you sure that the problem is the Motherboard DC Connector? Since you are at it, cut the DC Connector of that third party adapter and solder a new one. Quote Link to comment Share on other sites More sharing options...
+wongojack Posted June 9, 2018 Share Posted June 9, 2018 Welp, I got a model 2 a few years ago that had really been abused and gotten dirty. I opened it up to discover that someone had already attempted to repair the power jack by running wires to some open points on the board from the negative and positive pins on the jack. It was an imprecise repair, but I left it in place until today . . . I bought the correct jack from Console 5. This thread is a testament to how easy they've made it to find the correct parts for our old consoles - thanks Console5! I de-soldered the old jack which had cracked plastic in several places and was just generally quite dirty. It went in the trash, and I soldered the new one into place. It now has a nice tight fit and works every time, but I did not think to put any silicone between it and the board. That would surely help with movement over time. Anyway, I fixed a Genesis today and just wanted to tell someone about it. 2 Quote Link to comment Share on other sites More sharing options...
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