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It's a really nice project.

It's a contact problem.

So now you need to check if the cause is the qsound circuit or when the sound already out. I think the best game to do it is Zero 3 because the jukebox, if the digital wave shows or the game boot perfectly, the qsound is ok.

You mean the sound start ok and turn off after some time?

You are working with a 22 years old PCB, you know how many carts was inserted and removed from the socket? Of course will be some kind of contact issue. About the actual error, still happening?

We are now on the new generation! [0.14.8] - 2021-02-25 Added - Added Support for Sony Playstation 5 DualSense

You mean that it boots fine on MV1C? So it's a proof that the PCB is 100%.

Do you have more carts to test with?

Did you set DIP 7 for free play? If yes, the PCB is perfectly fine. Maybe a connection problem with cart.

Press start on hatch screen.

On MV1C, without cart, check the I/O screen and give me a shot.

Without cart the PCB reboot?

So the problem was the cart. End of case. Anyway, you need another MVS for comparisons.

You need to understand the code to do that.

Yeah, i mean the case is not good enough, yet. Need some more fix and tests.

I think i told that i'm working on it already haha

Yes, both AVR and host work on 3.3V. The source is the PSU from supergun.

I'm, just not good enough.

This is the USB2DB15 3rd batch, that is 4 times bigger than the last one and took me some time to finish, but thanks God everything is good now and ready for shipment. The packages part are the worst for me, but let's do it! Thanks everyone of the support! The pre-order for 4th batch is already...

I use Eagle on this project. If you find another way that you think is easier, just share with us.