Sega-Naomi

Picked up a working/non-working daytona (model2) twin yesterday for cheap. One side is working fully and one side I get nothing... no monitor, no force feedback, no sound, board is getting power though as it has a red LED on it. This is the right side (opposite side of power plug in).



Is this a blown fuse? If so where can I locate the fuse for this side?

sounds like power supply to me,remove the plate infront of the pedals where you then access the psu,check both +5 lines

also there is a fuse block in there

Ok with that info I am now getting power to all the boards but still no monitor and still no sound. Also I'm not getting any power to the header marquee on the right side (same side as in question).



Steering wheel is moving during the demo, drive board is registering input left and right with manual movement and demo movement.



Also, the green VR button is staying lit the entire time.



We're getting there!

sounds like a plug off somewhere in there,use the working machine to check wiring/connection and voltages

there is a ac breakout board,check that

Dumb question: You have 2 cabs. Have you swapped parts back & forth to try and narrow down where the problem is?



In other words, does the boardset from the dead cab work in the other one?

channelmaniac wrote:Dumb question: You have 2 cabs. Have you swapped parts back & forth to try and narrow down where the problem is?



In other words, does the boardset from the dead cab work in the other one?

That's my next step... If it was a fuse I wanted to try that first.

Is there a reason why I would have four fuses in my fuse block on the right and five on the fuse block on the left? I'm missing a 10amp fuse and there are no wires that go to it or loose.



any ideas?



EDIT: Also found a blown fuse on the right side (#2)'s monitor board (2a 125v). Replaced with #1's fuse with no luck... neither sides monitors fired up.



What can I probe on the monitor board to see if I'm getting voltage to at least the board... what's the first place the board gets power? I'm assuming it's the black and white wires coming into the board? What voltage should I be getting? These are 26" Nanao's.

you should read 100vac to 120vac for the monitor power,make sure you replace fuses with the same value

grantspain wrote:you should read 100vac to 120vac for the monitor power,make sure you replace fuses with the same value

I am measuring 123.4vac on the power input to the monitor. Was really hoping for 0!



Is there a way to adjust or is this something with the isolator?



EDIT: Also, the PSU on the nonworking cab was showing 5.5vDC. I brought this back down to 5.00vDC. Still no monitor/no sound.

Not trying to pad my post count or anything... just keeping the thread up to date in case anyone new reads this.





Very odd findings tonight. Looks like when I swapped the 2amp fuses between monitors, it blew that fuse as well (should have known that was going to happen)... so now I'm fuseless. There is another fuse up from the board that is a 125v 6.3amp fuse that is fine. What can be done to bring the amperage feeding into this fuse?



Of course this all went down before I could start swapping components to see what worked.



Trial and error... and error and error and error.