sheep_nova
Grand Master
- Thread starter sheep_nova
- Start date
),if not, in the USA is also fine. high-pitched whine constantly
I was the buyer. I've tried 3 cabs - Egret 2, Blast, and Astro.
Same issues on each. Sprite glitches. Image gets a bit static-y like there's a sync issue, and a high-pitched whine that seems to fit with that idea.
Sound only works intermittently
Same issues on each. Sprite glitches. Image gets a bit static-y like there's a sync issue, and a high-pitched whine that seems to fit with that idea.
Sound only works intermittently
It's really hard to capture in pictures, but see the "Push P1 Start" text glitching. There's also red & green pixel "static" visible in the black sections between bricks in the intro sequence, and it has a generally wavy/static-y image the issues persist during game play, but hard harder to get pictures of.
Attachments
I'd start with a Recap.... I've owned 3 of these boards and they all had horrid blown out audio due to bad caps... that could also be the culprit in terms of graphical noise.
of course these boards are also prone to battery leak and the first area to get eroded after the battery circuit is the Video ram and CPU
of course these boards are also prone to battery leak and the first area to get eroded after the battery circuit is the Video ram and CPU
SnakeGrunger
Professional
You could send your PCB to Ken at irepairsega.com he can change caps and try to find corroded traces for you.
Good thought! I sent him an email today. Hopefully he can work on this board.
I used to use Channelmaniac, but I know his queue got way too deep a while back and he may be out of the game.
Appreciate the thoughts! Thankfully it looks like it has a CR2032 which has not leaked, and i don't see any evidence of corrosion.
If Ken determines something else is the issue, maybe I'll try to just get it recapped at the same time as repair.
Is it just the electrolytic (canister) capacitors, or are there any surface-mount caps that would need to be done?
SnakeGrunger
Professional
He's extremely proficient in Sega stuff yes, some Konami (installing audio modules for example, reflowing chips) and very good at trace repair but if something is corroded too much he will not spend any time on it, and nobody should in good conscience.
I live near Ken (talk to him a lot) and can at least have him look at my Crystal of Kings to compare yours to.
That's very nice of you! If Sheep Nova gives me the thumbs-up to send it in for potential repair, we may well take you up on that. That could at least help as a sanity-check to see if the main big square chip on mine is overheating, as Ken suspects.
