zed7
n00b
- Joined
- May 9, 2020
- Posts
- 42
Hello, as of today I've developed a Z80 Error, that I believe to be audio related. Here's the sequence of events:
MVH-MV4, MVS-4-25 rev 3
Audio somewhat quiet since purchase of cabinet ~3 weeks ago and one speaker may be louder than the other.
Today, all audio stopped completely. After all attract screens finish for the games and goes to the Neo Geo intro, it crashes after playing it with a garbled O and G from Neo Geo. After about resetting 3 times it seemingly did a reset after crashing to tell me that it's a Z80 error.
When the audio initially died, I had just put the K7000A chassis back in after a cap kit and the tube to neckboard ground wire had fallen loose, heard a sound similar to arcing from the monitor and noticed the credit counters flickered briefly. When I fixed this the monitor seemed fine, as did the games playability, other than no audio and the crashing.
I had just ordered caps for the audio earlier today before this happened (good timing) and I'm hoping that'll fix the audio problem. If not, what should I narrow in on? the YM2610, or something else in between the YM2610 and Z80, maybe something else? Did I possibly short something?
Apologies if there's another thread I could sift through for the right information, or if this isn't properly formatted with the correct information.
Checked MVS edge connector, F(?, top side of edge connector) has 0v and 6(bottom?) has 12.5v. I can double check tomorrow morning to make sure I'm not incorrect about that.
I have no earth ground currently, working on getting that implemented.
Thank you very much for any help, will update this with extra information I can check tomorrow and if any oddities are fixed.
MVH-MV4, MVS-4-25 rev 3
Audio somewhat quiet since purchase of cabinet ~3 weeks ago and one speaker may be louder than the other.
Today, all audio stopped completely. After all attract screens finish for the games and goes to the Neo Geo intro, it crashes after playing it with a garbled O and G from Neo Geo. After about resetting 3 times it seemingly did a reset after crashing to tell me that it's a Z80 error.
When the audio initially died, I had just put the K7000A chassis back in after a cap kit and the tube to neckboard ground wire had fallen loose, heard a sound similar to arcing from the monitor and noticed the credit counters flickered briefly. When I fixed this the monitor seemed fine, as did the games playability, other than no audio and the crashing.
I had just ordered caps for the audio earlier today before this happened (good timing) and I'm hoping that'll fix the audio problem. If not, what should I narrow in on? the YM2610, or something else in between the YM2610 and Z80, maybe something else? Did I possibly short something?
Apologies if there's another thread I could sift through for the right information, or if this isn't properly formatted with the correct information.
Checked MVS edge connector, F(?, top side of edge connector) has 0v and 6(bottom?) has 12.5v. I can double check tomorrow morning to make sure I'm not incorrect about that.
I have no earth ground currently, working on getting that implemented.
Thank you very much for any help, will update this with extra information I can check tomorrow and if any oddities are fixed.