badcarwash
n00b
- Joined
- Nov 30, 2019
- Posts
- 4
I bought a dedicated Neo-Geo MVS 4-slot cabinet last November. When I bought it, the machine worked. At that time, I hadn't kept it on for more than an hour. I would play it for 30-45 minutes and turn it off without any issues. All that was needed was cosmetic fixes to the outside of the cab. I did notice a high-pitched noise coming from somewhere and I thought it was the ELA panels which did not work. I couldn't work on it over the winter, so I kept the cabinet in my garage during the season. I took the board out and kept the board inside my house.
I read that these things are notorious for the leaking battery. So, I replaced the battery with a new one from twistedquarter. There was no sign of any acid damage from the old battery. After replacing the battery, I put the board back into the machine. It booted up normally with no issues. I still heard that high-pitched noise as before. It sounded like it was coming from the monitor area, but I couldn't really tell.
I wanted to keep the machine on to make sure that the battery would recharge to keep the scores, date & time, and everything else. So, I decided to keep it plugged in and come out to check on it after an hour or so.
I went out to it after an hour, and the machine appeared dead. I did not see what happened to it. I turned it off and on again. The monitor still has neck glow, and I can still hear static coming from the monitor when it turns on. But, there's no sound, and no sign of life from the game. It isn't playing blind-- It's just not playing anything! And this time, I noticed the high-pitched noise was also gone! Also interesting to note is that the coin counter LEDs on the control panel are also not turning on either.
This is my first arcade machine, but I've done some research on them. I am willing to do whatever repairs are needed. However, with this issue I do not know where to start. I've tried to do some Googling and forum searching. But, the "no video/no sound/power to the monitor" issues are so broad that I can't pinpoint where to even begin. Do I begin with the power supply? Fuses? Monitor issues? RAM? PCB Issue? All of these things come up when I try to look up the symptoms. I have no idea where to begin on finding the problem, or if this is a known issue for the MVS. Any guidance on this problem or even pointing me in the right starting place would be greatly appreciated!
I read that these things are notorious for the leaking battery. So, I replaced the battery with a new one from twistedquarter. There was no sign of any acid damage from the old battery. After replacing the battery, I put the board back into the machine. It booted up normally with no issues. I still heard that high-pitched noise as before. It sounded like it was coming from the monitor area, but I couldn't really tell.
I wanted to keep the machine on to make sure that the battery would recharge to keep the scores, date & time, and everything else. So, I decided to keep it plugged in and come out to check on it after an hour or so.
I went out to it after an hour, and the machine appeared dead. I did not see what happened to it. I turned it off and on again. The monitor still has neck glow, and I can still hear static coming from the monitor when it turns on. But, there's no sound, and no sign of life from the game. It isn't playing blind-- It's just not playing anything! And this time, I noticed the high-pitched noise was also gone! Also interesting to note is that the coin counter LEDs on the control panel are also not turning on either.
This is my first arcade machine, but I've done some research on them. I am willing to do whatever repairs are needed. However, with this issue I do not know where to start. I've tried to do some Googling and forum searching. But, the "no video/no sound/power to the monitor" issues are so broad that I can't pinpoint where to even begin. Do I begin with the power supply? Fuses? Monitor issues? RAM? PCB Issue? All of these things come up when I try to look up the symptoms. I have no idea where to begin on finding the problem, or if this is a known issue for the MVS. Any guidance on this problem or even pointing me in the right starting place would be greatly appreciated!
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