Recent content by nem

JST YL https://www.jst-mfg.com/product/index.php?series=283

Out of interest, why no AES?

So it's just the monitor that isn't working? Likely a cracked solder joint on the chassis.

It's not optional. The amp expects 17V AC.

The amplifier has been retrofitted. It's actually originally from a Net City. MVS outputs amplified signals, so you don't necessarily need it. The audio quality might be a bit better with the separate amp though.

There's a power switch at the back too.

Audio amplifier and power transformer.

Yes, here: https://www.arcade-projects.com/threads/sega-net-city-vs-link-board-838-13816-91-info.4146/#post-59506

It only happens with CVS2, no other Naomi game. It's not a power issue.

Check the pins on the PPU: https://www.arcade-projects.com/threads/cps3-bad-sprite-ram-24000000.28369/#post-409064 https://www.arcade-projects.com/threads/cps3-bad-sprite-ram-24000000.28369/#post-410139

Sure will. It will boot an error screen and you can enter the service menu. Obligatory reading: https://www.arcade-projects.com/threads/repair-log-naomi-2-wont-boot.22543/

Looks like JST VH: https://www.jst-mfg.com/product/index.php?series=262 Double check the pitch to make sure.

https://www.meanwell.com/webapp/product/search.aspx?prod=QP-150 QP-150-3A

Your FPGA is fine. Don't swap that. Actually, checking the image posted by Phil, the color gradients would be off if UB4 or UC4 are faulty. Also, I assume your colors are equally dim? More than likely your issue lies elsewhere, unfortunately. The schematics are in the manual...

5V is a bit low, but it should boot. 12V doesn't matter. Ideally you would have an arcade PSU that you could manually adjust the voltages with. Try replacing the fans.