NAOMI 2 issues just bought at auction

CalifTom

Member
Joined
Jun 8, 2009
Messages
281
Reaction score
0
Location
San Diego, California
Hello, I just purchased a Power Smash 2 NAOMI 2 game at an auction. It is having a problem when you start a game. Once you select a player it freezes and sounds like a skipping record. Is this a CD problem? Do I need to buy a new one?

Question #2 I have seen CD's on ebay with different games. Can I buy one of these and plug and play? Or do I have to get some sort of security chip?

Question #3 The screen looks great and the sound sounds good. What are these games worth? I paid $150 for it.

Question #4 The cabinet does not look original. If I were to put another game in it, what kind of game would work with this type of monitor?

I am new to the restoration of these games and I appreciate everyones help. Thanks so much!!!



I'll try and add pics as soon as verizon comes back on-line. Pics are a little dark. I'll try and get some better ones when it's lighter.
 

Attachments

  • ps2-1.jpg
    ps2-1.jpg
    35.6 KB · Views: 32
  • ps2-2.jpg
    ps2-2.jpg
    16.1 KB · Views: 33
  • ps2-3.jpg
    ps2-3.jpg
    40.3 KB · Views: 30
Last edited:
Definitly post pics, as it will help determine whats needs to be restored. I'm a huge naomi fan, but I havnt yet took the plunge to get a full gd-rom setup or naomi 2 (really only need one if you want virtua fighter 4)

The cds are actually GD-ROMS. Like the format used on the dreamcast. If you switch out GD-ROM games you need to make sure that the gd-rom comes with the security chip. The security chip goes into the DIMM board on top of the naomi and the gd-rom obviously into the gd-rom unit.

If its skipping id check the GD for scratches first.
 
Forgot to add:

The dedicated naomi units should have used high rez (VGA monitors) and a usb cable directly to the control panel. If its converted, you will see a board that the naomi connects to via vga and usb and then that board connects to the jamma harness.

Also the naomi can downconvert to standard res by flipping one of the dip switches on the unit.
 
Press the test switch and run the unit through its self tests. That will check the RAMs in it and tell you if they are good or not.

Next, take out the media and check for scratches.

Next, CAREFULLY clean the lens with alcohol and a q-tip. Don't push hard on it or you'll f00k up the springs that the lens floats on.

If the laser assembly is weak you can try turning the pot on it SLIGHTLY to see if you can get it to read better. It doesn't take much. But you should MARK THE STARTING SPOT FIRST. ;)

If all else fails, I think you can swap the laser assembly from a Dreamcast into it.

RJ
 
Press the test switch and run the unit through its self tests. That will check the RAMs in it and tell you if they are good or not.

Next, take out the media and check for scratches.

Next, CAREFULLY clean the lens with alcohol and a q-tip. Don't push hard on it or you'll f00k up the springs that the lens floats on.

If the laser assembly is weak you can try turning the pot on it SLIGHTLY to see if you can get it to read better. It doesn't take much. But you should MARK THE STARTING SPOT FIRST. ;)

If all else fails, I think you can swap the laser assembly from a Dreamcast into it.

RJ

Thanks for all the great info. I did clean the media, it does look a bit scratched. Unfortunately that didn't help. Maybe I can find a product that will take out some scratches. I'll try the test switch tomorrow. Thanks again.
Any more info on these games would be great!!!!
 
and that looks like a standard generic(non sega original) "showcase" cabinet. Most of those have a 33" monitor, usually dual res or tri res, so if anything, if it has a tri res monitor, you did just fine at $150 as the monitors worth more then that.
 
for $150 you did great on that showcase cabinet.

You have the second gen sega jamma adapter, which is good. The whole naomi setup you got there could easily be parted out for $500 alone. You have yourself a good system. I'm jealous. The gd-roms and ROM boards can go anywhere from 25$ (usually wwf royal rumble) to the high hundreds like marvel vs capcom2.
 
If you are able to get the game start screen then its not the Gdrom drive or disc. The game loads all the data to the dimm board when it boots up. I would check the voltages at the power supply first, and also check the to make sure the fas are running in the mother board.
 
If you are able to get the game start screen then its not the Gdrom drive or disc. The game loads all the data to the dimm board when it boots up. I would check the voltages at the power supply first, and also check the to make sure the fas are running in the mother board.

It seemed as if there were two types of these games. One that loads the data into memory and one that takes it off the CD. Does anyone know if this is correct, or do they all load into memory? The CD sounds like it is still spinning when it locks up. It sounds like a stuck record.
 
no, even if its a gdrom they all load into the DIMM board.

If you press the SW1 Button on the side of the naomi you should be able to get into the test menu and test the media.
 
Those games were all worked on prior to the auction by Gene at Vintage Arcade Superstore in Glendale. He told me about it last week. Give him a call, I am sure he can tell you why he wasn't able to fix it for the auction.
 
Those games were all worked on prior to the auction by Gene at Vintage Arcade Superstore in Glendale. He told me about it last week. Give him a call, I am sure he can tell you why he wasn't able to fix it for the auction.

Thanks, I'll give him a call and see what's up.
 
good point about the power supply...

Sega's got games that use 3.3V. our Daytona USA 2 and Wild Riders (which is a NAOMI 2 game) used to randomly freeze up. turns out it was caused by the 3.3V being set wrong.

not sure if this relates to your case, but it's worth a look. there's 2 pots on the PSU, one for the +5 and one for the 3.3.
 
Back
Top Bottom