I have buy one of these
more like here
I have buy one of these
more like here
Yes, I'm trying to translate but it's not easyI think language is starting to become an issue here.
Can someone explain the man how to use a ‘multimetro’ in Italian?
What? If I play with mvs the sounds it's perfect it's the same?Do you have the ribbon cable installed correctly?
The red edge of the ribbon cable needs to go to pin 1 on the main board and pin 1 on the sound board. It's easily installed incorrectly because it feels like it's being plugged in the wrong way around when you plug it in the right way around (counter intuitive).
None of those games use -5V for audio.What? If I play with mvs the sounds it's perfect it's the same?I have other pcb (sunset riders and work perfectly)
There is a ribbon cable and a power cable between the Mortal Kombat main PCB and the sound PCB. It all needs to be installed correctly - it has nothing to do with the wiring in your Blast City. Any other game installed in the Blast City will work because they're not set up like Mortal Kombat 2.What? If I play with mvs the sounds it's perfect it's the same?I have other pcb (sunset riders and work perfectly)here is a ribbon cable between theDo you have the ribbon cable installed correctly?
The red edge of the ribbon cable needs to go to pin 1 on the main board and pin 1 on the sound board. It's easily installed incorrectly because it feels like it's being plugged in the wrong way around when you plug it in the right way around (counter intuitive).
OK, see this picture:Ok, that's the power cable. Where is the ribbon cable at the opposite end of the main PCB between the soundboard and main board? You should have two cables. You should see a header with 20 pins on both boards.
Look at the MK2 PCB in this post. Two cables between the boards.
https://forums.arcade-museum.com/showthread.php?p=3622544
heads up. sometimes the cap by the back of the audio amp heatsink will go bad from the heat. if that cap is bad you will also get no audio even when you do get -5v to the board. the phillips caps that williams used were crap and commonly are dead at this point in time.
Yes, I've got one of those Negatrons in my Blast City and works fine - so I'm assuming it's something else (but yes he should check).Need to confirm he has -5v first before delving any deeper!