So, I've been itching to try out Trap13's Guardian Force delag patch. I had the ROM written by BuyICnow.com,
I sent them the rom, they confirmed the chip type was correct, and double verified the write as usual.
Installed it in my Guardian Force cart, turned on the mobo, and 5 seconds later BOOM!
Confused as hell, I took a closer look at the back of my Guardian Force cart and found that one of the
patch rom socket pins, had never been soldered!
For comparison, I opened up my Cotton 2 cart, and it looks like I would expect it too.
PICS: https://imgur.com/a/HE0FE6y
Now, I know jack about electronics, but my first guess is that the hole caused a short resulting in the boom.
Only a theory though. Both carts and mobo were purchased directly by me from Mak Japan over 10 years ago,
and never had an issue before.
So, if I replace the blown part (tantalum cap?) would it be safe to try another boot? I don't see any other damage.
Sega ST-V exploded today....
Re: Sega ST-V exploded today....
That pin should definitely be soldered, although I don't know whether it could cause the explosion.
Has this tantalum cap replaced an electrolytic one? The footprint possibly suggests that there used to be an electrolytic cap there.
Edit: on second thought this looks like a through-hole ceramic cap. In any case, remove it and make sure the contacts aren't shorted. If they aren't, replace it with a good quality capacitor of the same value and make sure the voltage rating is correct for this board. And solder the loose pin.
Has this tantalum cap replaced an electrolytic one? The footprint possibly suggests that there used to be an electrolytic cap there.
Edit: on second thought this looks like a through-hole ceramic cap. In any case, remove it and make sure the contacts aren't shorted. If they aren't, replace it with a good quality capacitor of the same value and make sure the voltage rating is correct for this board. And solder the loose pin.
https://8BitMods.co.uk - Plenty of mod kits and consoles available for UK and EU
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Re: Sega ST-V exploded today....
As far as I know, it's totally stock. Pics of other mobos online all look the same.
Re: Sega ST-V exploded today....
Yes you're right, other motherboards look the same.
I still would try checking for a short after removing, and replacing the capacitor. Can't find any info on the internet about what value C62 might be though.
I still would try checking for a short after removing, and replacing the capacitor. Can't find any info on the internet about what value C62 might be though.
https://8BitMods.co.uk - Plenty of mod kits and consoles available for UK and EU