NANAO MS9 screen flip switches


Blingstix MS9 Yoke flip harness

I got a couple of these this week, and finally got some daylight in which to work, I can finally play with my  games from Working on a monitor chassies is fiddly work, at least for me, so I always try to have the best possible conditions. I’m going to install the pictured one in my 24kHz EGRET II tomorrow along with a…

24/15kHz switch, also made by Blingstix aka FrancoB (Arcade Otaku, BYAC), just need to sort out a connector for the +12V that switches the relays from 15kHz (basic operation) to UVC mode 24kHz with the +12V coming from my JAMMA fingerboard that already powers my UVC. Read more about the UVC in the Articles section of this site.

The 24/15kHz switch is a small adapter that you put between the chassis’ hZ jumper wire (the MALE 4 pin connector) and then the FEMALE connectors each get one spot on the chassis hZ connectors. When the relays get +12/GND on the set of white wires (bundled up nicely in the below picture), the hZ connector is switched from which ever one is the default (no power) to the powered one. Very convenient. I hope my description is understandable. 🙂


Blingstix 24/15kHz switch

Installing the Blingstix MS9 yoke flip switch

1. Make sure you can get to the wires marked in GREEN and RED on you chassis. These are the yoke-wires that decides whether or not your picture is mirrored or upside down. Some games don’t come with a flip DIP on the PCB, thus making it very painful for consumers with cabinets at home. To get a good view of my chassis and these wires in particular, I had to remove the screws that hold the chassis on my EGRET II’s chassis shelf, then unplug the power wire (on the right side above the PCB particle board when looking into the back of the cabinet) to be able to rotate the chassis.


MS9 yoke wires

3. The wiring harness from Blingstix have matching connectors for each connector/wire, so you can’t connect them to the wrong part of the chassis. This guide should remove all doubts though. Start by pulling the wires gently from the chassis, gripping the connectors and NOT the wires themselves as to not strain them.

4. Put the Blingstix wires on the chassis connectors, look at the picture below to see which goes where

5. Put the ends with metal prongs into the NANAO wires that you’ve removed from the chassis’ connectors

6. Put your chassis back into it’s original position on the chassis shelf in the cabinet (if EGRET II), then connect the connector above the PCB particle board

7. Power on your cabinet and check if the picture is the same way, mirrored or flipped. If the picture is the same way it was, power off the cabinet, then flip these rocker switches (both of them):

8. Power the cabinet back on and now the picture should be flipped!


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  1. Nice I have to pick one up for my Egret 2.

    • Techno on 10/17/2012 at 14:02
    • Reply

    Nice. Could you show photos of games running with the switches in OFF position then the ON position?

    1. I don’t really see the point of pictures? If your game is upside down, you turn the cabinet off and flip the picture with the press of two buttons. If I only put one of them in ON, the picture will be backwards/upside down or backwards. It’s a two-step process.

        • Techno on 10/19/2012 at 11:09
        • Reply

        Ah ok. Thanks for the explanation!

    • racbboy on 09/27/2014 at 09:11
    • Reply

    I’m interested by the “NANAO MS9 screen flip switches”. Do you have still have this cable and what is the price?

    Thank you in advance

    1. Hello,

      I don’t sell these, I just bought mine from FrancoB @ Arcade Otaku/BYOAC. I would suggest you join the Arcade Otaku forums and contact him directly.

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