What's new
By:

Darksoft Neo Multi Help thread

Hi,

I'm experiencing some audio issues with my Analogue Slim CMVS (MV1C board). In some games, the audio plays way too fast—this also happens with the music on the Neo Geo loading screen.

You can see an example here:
View: https://youtu.be/_xV8DEBGOmw


I've had the Neo Geo inspected by two different technicians. Neither found any faults on the board and both suggested I check the multi-cart instead.

I'm using the first batch of the MultiMVS with the latest firmware.

Are these known issues? I haven’t been able to find any information about this online.

Thanks!
 
Last edited:
The rhythm of the music is defined by the timer on the sound chip which is part of the neo geo board. That is controlled by the Z80 which is also part of the neo geo board. The multi cart only provides the program for the z80 to run. I suggest you try the cartridge on at least one different MVS board of any type and confirm if it has the same issue. There is a slim chance that the neo geo board has a fault on the sound circuit.

Even the eyecatcher music is playing overspeed.

Does this happen on all games?
 
l_oliveira said:
The rhythm of the music is defined by the timer on the sound chip which is part of the neo geo board. That is controlled by the Z80 which is also part of the neo geo board. The multi cart only provides the program for the z80 to run. I suggest you try the cartridge on at least one different MVS board of any type and confirm if it has the same issue. There is a slim chance that the neo geo board has a fault on the sound circuit.

Even the eyecatcher music is playing overspeed.

Does this happen on all games?
Click to expand...
Thanks for your reply!

I asked them to check the Z80 but they couldn't find anything. The 240p test suite Z80 doesn't give an error.

It doesn't happen on all games, i would say 10%-20% of all the ones i tested.

Unfortunately i don't have another MVS board to test the cart, but also hearing from Darksoft that he never heard of these issues believes it's still the Neo board.
 
Hello,

I sold my Multi MVS (September 2024 batch) and the new owner informed me that he has sound losses regardless of the game after a few minutes. The sound sometimes comes back but may also not come back at all.

He tested the Multi on several slots (2 different cabinets and consolidated MVS) and he still has the problem. The caps are changed on all his slots.

For information, the buyer makes the Multi running at 5.1v (which seems a bit high to me, no ?)

In your opinion, is this a hardware problem of the Multi or a firmware problem ? Thank you in advance for your ideas and feedback. I find myself in an uncomfortable situation with the person to whom I sold the Multi.

Cheers,
 
Last edited:
Hi All,

Had a question, my hot keys on my multi don’t work anymore. They use to work and now no matter what I do I can’t get any direction plus start to work.
 
Disregard. I forgot i had the rico set up with start button functioning as 2 buttons. My bad.
 
metalslugaddict said:
Hello,

I sold my Multi MVS (September 2024 batch) and the new owner informed me that he has sound losses regardless of the game after a few minutes. The sound sometimes comes back but may also not come back at all.

He tested the Multi on several slots (2 different cabinets and consolidated MVS) and he still has the problem. The caps are changed on all his slots.

For information, the buyer makes the Multi running at 5.1v (which seems a bit high to me, no ?)

In your opinion, is this a hardware problem of the Multi or a firmware problem ? Thank you in advance for your ideas and feedback. I find myself in an uncomfortable situation with the person to whom I sold the Multi.

Cheers,
Click to expand...
The sound issue has to do with power. Its been talked about and pretty much sorted out. Have him bring the 5v power down to about 4.7 to 4.75.
 
metalslugaddict said:
Hello,

I sold my Multi MVS (September 2024 batch) and the new owner informed me that he has sound losses regardless of the game after a few minutes. The sound sometimes comes back but may also not come back at all.

He tested the Multi on several slots (2 different cabinets and consolidated MVS) and he still has the problem. The caps are changed on all his slots.

For information, the buyer makes the Multi running at 5.1v (which seems a bit high to me, no ?)

In your opinion, is this a hardware problem of the Multi or a firmware problem ? Thank you in advance for your ideas and feedback. I find myself in an uncomfortable situation with the person to whom I sold the Multi.

Cheers,
Click to expand...
Did you also sold your SD cart with the Multi? I once used an old cheap SD card and had all various strange issues like graphical glitches and loss of sound.
 
I've had the MVS cart since September but now after a lot of testing I keep having audio issues. I have tested this on 3 separate one slots all different models. It seems to be an issue more with the higher meg games because I assume they have more power draw. Audio will randomly cut out and sometimes back in. I can adjust the voltage lower which makes the effect happen less frequently but if I drop it too much games reset as the voltage isnt high enough then. There is no sweet spot to stop all effects. Is this a known issue or just my cart?
 
You must log in or register to reply here.
Back
Top