Nanao MS2931 - How to adjust colors?

[bartre]

Hey all,

Got a new machine with a 2931 in it and the green is way too low and the blue is way too high.
In both the regular menu and the service menu I don't see a color adjustment option, nor do I see a pot for manual adjustment.
How can I balance the colors?

Thanks!

 

[mR_CaESaR]

You need the extended menu

https://wiki.arcadeotaku.com/w/Nanao_MS-2931

To bring up the normal menu, press mode. This gives you adjustments for H POS, H SIZE, V POS, V SIZE, CONTRAST, BRIGHTNESS, DEGAUSS, and RESET. A Degauss can be performed every 250 seconds. To use the reset function to restore factory settings, go to reset and hold down or up for a few seconds. To cycle through all of the options, use the mode button. To go back up to a previous option, hit mode and down at the same time.

To bring up the extended menu, hold down for five seconds. This gives additional adjustments such as TRAP, PARA, HLIN, VLIN, SPC, CORNER, and more. You can also access all of the normal menu's adjustments within the extended menu. Resetting the extended menu works the same way as resetting the normal one.