Sega-Naomi

Can anyone help me? I'm a electronics technician from Portugal and I solves a few problems with Naomi hardware, but this one beats me :smt017



Here goes... with no visible reason I have (since this morning, yesterday was OK) a malfunctioning NAOMI2 hardware:



-Everytime I use a NAOMI2 Game (blue box) the game stuck right after the logos when the yellow letter bellow show up "insert coin ----credits 0 --- insert coin" and the game freeze with black background, only the yellow lettering.



But If I use a Naomi1 game (white box) everything works OK.... :smt017



Tried different games (all OK), done ROM, RAM & DIMM tests, checked voltage, cleaned up contacts...



:smt010 :smt010 :smt010 HELP!!!! Any ideas?

Sounds like faulty N2 game soft.

Ok. It could be a setting that needs to be changed. What game is it?

faulty software

it's not the cartridges, I'm experiencing the exact same problem, with v.Striker 3 (working ok in other Naomi2) both versions, stand-alone and GD-ROM :smt017 grrrrrrrrrrrrrrrrrrrrrrrr

Well then it will not be fixable by yourself, probably a fault on the 2nd GPU (as only Naomi 2 games use 2 GPU's).



You'll need to get a Sega tech to fix it, try Ken @ www.irepairsega.com

:smt011 kind of difficult.. we are on the different sides of the ocean thank you anyway

Doesn't matter where in the world to my knowledge.. just you'll need to pay shipping.



Guess your cheapest solution is to find another N2 mobo.

thank you all, already contacted Ken, but still no fast solution.

Thank you anyway

AndyGeezer wrote:Well then it will not be fixable by yourself, probably a fault on the 2nd GPU (as only Naomi 2 games use 2 GPU's).

Hey, Andy. :smt006 Will the Naomi2 still run without 1 of it's GPU's?

Wouldn't this be something that would be tested after power-up?