Repair/Restore my Nintendo M82

I have a programmer/dumper. I do not have a US M82, you need to send me your corroded chip and I will dremel it to expose the connections, then solder it to a board and then dump it.


I can then program you a new chip.

 

You're a saint. Is there something from the US I could send you out of appreciation? Name it.

I will order another blank TI chip (two just to be safe, like last time).

 

You can send the 2 chips you already used, they are reprogrammable.

 

PAL is FUSE based so no it's one shot only.

GAL is the re-programmable equivalent.

 

Good spot.

I know the PAL was OTP, but seeing as the TIBPAL is the replacement for the GAL's, I just assumed they were reprogrammable too.

I have some GAL's here already, they should be directly compatible - so I can send you one of those if you want. But if you want to order TIBPAL's to be 100% sure, then you can do that.

 

Im pretty sure most if not all PALs are reprogrammable. I got a couple PALCE-16V8H's laying around and have erased and reprogrammed them multiple times without issue.

Am i missing something here?

 

PAL = not reprogrammable
GAL = Reprogrammable
PALCE = Reprogrammable
TIBPAL = not reprogrammable.


Now you can forgive why I got it wrong

 

Oh fuck lol. I'm gonna sit in a dark corner now with a dunce cap on

 

Well I know I'm kind of mistaken a lot of times myself so, you're excused. And +1 for doing the homework and researching.

 

I already knew about PAL/GAL/PALCE.

TIBPAL was an (incorrect!) assumption. We all know what they say about assumptions!

 

I guess Bad_Ad84, all I'd need is for you to PM me your address or where to mail this to? And also give me an idea of something nice I can send you as a thanks?

Is there anything else I should try on my end before I send it off? Because if this chip gets lost in the mail, this entire M82 is screwed!

 

You dont need to send me anything.

Will PM address now

 

Wow, this is such an exciting thread to read!
I hope you guys can work it out!
Man, would be killer to have a working M82 :O

 

Well I have been having a pretty aggravating week so far.

Bad_Ad84 was cool enough to PM me his info, but I cannot find my old TIBPAL chip (the one that is corroded/oxidized). I know I left it somewhere safe, but I probably left it somewhere too safe (to the point that I can't find it!). Either that, or our cat found it and played around with it which they love to do when they find something small like that.

Or maybe I sent it to K1ngArth3r and I simply don't remember; I don't know.

I am really surprised that the chips that were sent to me do not work. Which is making me think that maybe the issue isn't with the chip at all? When I had it in my possession, I checked continuity from the top to the bottom of the chip, and though corroded, all pins showed continuity.

Is it possible it could be something else? I'd take pictures of the motherboard but there's nothing obvious. No leaking caps or anything. I get a grey screen that does not boot 99% of the time.

 

I can confirm I don't have it, nothing was ever sent to me

The board I have is a PAL board, yours is NTSC. From what I understand the only difference should be the CPU and PPU only, so in theory I'd have thought it should have worked...

I did test the chip in my M82 before Bad_Ad84 returned it.

Just to confirm the current issues your experiencing after replacing the chip with the one we burned for you.

* The machine now powers on every time? (Previously you said only 1 in 50 before removing the corroded chip)
* The control pads don't work in any of the 5 slots, even trying different controllers?
* The LED now work?
* Everything is connected correctly?

 

Original chip wasn't sent to me either.

 

Sorry if I am confusing anyone. At one point when I was kind of able to get the thing to boot (almost) every time, the controller ports did not work, but that's because I was an idiot and didn't know which set of pins the rainbow ribbon cable plugged into. In all fairness to me, the LED displaying the number (which is the other rainbow ribbon cable) will still work if plugged into the wrong header, so I had thought it was in the right place.

The machine always powered on. It's just that it was usually a completely grey screen. When I had taken out the corroded chip and cleaned it/put some fresh solder on it, the console seemed to actually boot to the BIOS way more often.

The reason I feel like it's related to the chip is because when I pull it out, I get a grey screen 100% of the time. Did you find that to be the case with yours? I am wondering if maybe something else is up, and the corroded chip just threw me off...

 

Ok, so there is a direct link there with the chip.

When I used the burnt chip in mine it worked without a problem although it did reset the rotary switch to play for 30 seconds which I thought was odd...

I've not tried it without a chip in though.

 

Hm, so for it to reset the switch, that tells me the programming must be different in the NTSC chip? Also how did it reset a physical switch? That's strange!

 

I'm not sure, it was a dump of my original chip too... Maybe it was coincidental but I don't think so...

You really either:

a: Need to locate your chip
b: Get one dumped... There are quite a few owners on nintendoage who might be able to do it?