Remote for 15/24kHz switching on Nanao MS9

[mastercello]

Excellent Franco, appreciate it!

But with this it is 100% fine, right?
No risk to damage something at the chassis? (as empathic/pubjoe had problems with their setup back then)

Would it be possible also to take the 12V directly from the E2 PSU?
AWG of the wire - AWG18?

Many thanks!

[FrancoB]

We don't know for sure but from the testing that emphatic and ckong did it looked like wire length may have been causing issues on their original version. It's hard to tell for sure.

dieKatze88 came up with the idea of using relays to keep the yoke wiring at a minimum length. I tried it and it worked for me. The only issue I had was with the proto kit. It was installed on one of my cabs that went to replay and some of the wiring must have come loose (due to the **** push on crimp connectors on the relays) and so the monitor didn't work and cools removed the kit and just plugged the standard connector back in.

After that I soldered the wires onto the relays on my kit and had 0 issues with it. All the ones I made after that were soldered and I've not had anything my positive reports back.

YMMV though.

You could take 12v directly from the E2 PSU, you just need some way of making/breaking the circuit to switch between resolutions.

I used 24/0.2 wire which is ~18AWG.

[emphatic]

Pretty sure the cable length solved the issues I had. I still haven't gotten around to install my Franco switcher. One of my cabs is in 24kHz all the time.

[mastercello]

Many thanks chaps!

RS is not my favorite source - prefer digikey or mouser.

Are these parts correct:
Relay - https://www.digikey.ch/product-detail/d ... =324662015
Housing - https://www.digikey.ch/product-detail/d ... =324662660
Header - https://www.digikey.ch/product-detail/d ... =324663066
Contacts - https://www.digikey.ch/product-detail/d ... =324663780

Also would it be possible to do it on the MS8-26 Chassis?
This is the part of the different headers for the cable (8 pin):

MS8-26.jpg.png

Only difference is to use a 8 pin JST VH housing and Header instead of the 4 pin - right?

[FrancoB]

Many thanks chaps!

RS is not my favorite source - prefer digikey or mouser.

Are these parts correct:
Relay - https://www.digikey.ch/product-detail/d ... =324662015
Housing - https://www.digikey.ch/product-detail/d ... =324662660
Header - https://www.digikey.ch/product-detail/d ... =324663066
Contacts - https://www.digikey.ch/product-detail/d ... =324663780

Looks good to me.

Also would it be possible to do it on the MS8-26 Chassis?
This is the part of the different headers for the cable (8 pin):

MS8-26.jpg.png

Only difference is to use a 8 pin JST VH housing and Header instead of the 4 pin - right?

Yep, in theory it should work. You would have to suck it and see

[mastercello]

Received already the connectors, relais and contacts - still missing AWG18 wire - do you think AWG20 is fine too?

Did you mount or attach the relais somehow on the chassis?

[FrancoB]

Received already the connectors, relais and contacts

still missing AWG18 wire - do you think AWG20 is fine too?

No idea It's a very short cable length so I can't imagine the difference in cross section making that much difference but I'm not an electrical engineer. I know 24/0.2 (18awg) worked for me. Might be worth getting some if you can, it would save adding another variable into the mix.

Did you mount or attach the relais somehow on the chassis?

IIRC, on the MS9 I used double sided tape to mount them to the shield.

[Endprodukt]

Did anyone try switching when the monitor is on? Probably not recommended?

[nem]

Considering it works with relays, the cab, and therefore monitor, has to be on.

[Endprodukt]

Considering it works with relays, the cab, and therefore monitor, has to be on.

The switching has been done with the cabinet off. When it turns on and the relay gets 12v it immediately switches to 24khz.

I haven't found a comment if it is safe to switch between the modes when the monitor is already up and running.

I'm using a emulator setup and therefore would switch between the resolutions.

[FrancoB]

I wouldn't want to try switching resolutions with the monitor turned on. I always turned the cab off before flipping the 12v switch.

If it's set to off then the relay will be in it's '15kHz output' position and the monitor will run at 15kHz.

If it's set to on then the relay will be in it's '15kHz output' position until the cab is turned on. When the cab is turned on the relay will get 12v and will flip to the '24kHz output'. This will happen at the exact time that the monitor is turned on too. In an ideal world, you would want to change the output resolution prior to firing the monitor rather than doing it simultaneously but I've not had any issues doing it this way.

But yeah, I wouldn't want to try 'hot swapping' the resolutions.

[nem]

Ahh, I see. My mistake. I guess the monitor takes a while to power up, so I can see there being a difference.

[Endprodukt]

I was thinking if it could actually be done with an Arduino setup that controls what's going on and an additional relay for the power line of the monitor.

[Endprodukt]

So if someone cares we are gonna make an automated switcher. It will be very practical for emulated systems, don't see much of a reason if you use the real hardware.

It will be arduino controlled. Plan is to make it so that we will have a batch file that reads the command from a frontend, checks if the game launched is 25k, if so will then shut-off the screen, change to 25 and switch it back on. Also will switch back to 15khz ones you leave the game of course.

Once I confirm all of this working I'll hook you up with the files and schematics.

Open to any ideas.

[christianherculano]

So if someone cares we are gonna make an automated switcher. It will be very practical for emulated systems, don't see much of a reason if you use the real hardware.

It will be arduino controlled. Plan is to make it so that we will have a batch file that reads the command from a frontend, checks if the game launched is 25k, if so will then shut-off the screen, change to 25 and switch it back on. Also will switch back to 15khz ones you leave the game of course.

Once I confirm all of this working I'll hook you up with the files and schematics.

Open to any ideas.

Hi @Endprodukt, I'd like to know if you finally got to explore this option and if you have it working as of today. It would be interesting to know if this system can be used to have multiple video input sources running and switch between them according to the source selected."

[christianherculano]

I have two sets of relays and switches if you want one of them.

I also have enough of the sockets etc you sent me to do another one. The only thing I don't have enough of are the female pins for the sockets. I only just had enough to do the ones for mine. If you have any more of them that you can send I will happily make you one.

If anyone else needs one I have another set of relays/switched too. I bought three sets to get free shipping from Maplins. If no one wants it/them I'll just return them to the store

Hi Franco B, I’d like to know if I’m still in time to buy a couple of units of the system you designed to switch frequencies on the Nano MS9. I recently acquired an arcade cabinet with this chassis and I’d love to implement what you developed. Thank you very much in advance.

[FrancoB]

Normally I would say you're about 14 years too late but someone has just asked me to make one which I'm going to try and squeeze in amongst some other work. I might be able to sort you out too, I'll drop you a message

[christianherculano]

Normally I would say you're about 14 years too late but someone has just asked me to make one which I'm going to try and squeeze in amongst some other work. I might be able to sort you out too, I'll drop you a message

Thanks!
I would buy you 3 units if you could prepare it (one for a friend that he wants other unit), and two for me (one for the current cabinet and other I have in mind for the future). If not possible, please let me know and will buy you at least one for the current cabinet.
Thanks a lot

[RE4Merchant]

I could use one of those as well..