DK PCB question

Evil Reny

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I have this DK two board set thats missing a chip at C-7,8. Can anyone tell me what it is and where I can get one?

Thanks
 

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I have this DK two board set thats missing a chip at C-7,8. Can anyone tell me what it is and where I can get one?


If that were a DK, it'd be a Z80...

...but it's been converted to 8-ball action, so you're missing a daughterboard with a signetics 2650 processor and some logic...

Those aren't nintendo eproms or proms.
 
If that were a DK, it'd be a Z80...

...but it's been converted to 8-ball action, so you're missing a daughterboard with a signetics 2650 processor and some logic...

Those aren't nintendo eproms or proms.

SON OF A BITCH!

thanks I guess it's probably easier to find another DK board
 
What a bunch of lying and uninformed a-holes

They're all trying to convince you your board is worthless, and then they'll PM you to buy it.

It is NOT an 8-Ball Action. While the chips may look unoriginal to the untrained eye, they are, in all likelihood, the original chips with stickers put over the windows (common practice). They are one of the correct manufacturers (Texas Instruments), and moreover, they SAY "DK" and their board position on the stickers. I mean, DUH. Also, one rom socket would be empty if it were 8-Ball, and that chip is present and clearly original in the pics. It may have been 8-Ball in the past, but if it was, it was converted back (simple chip swap).

Also, the chip missing is a Z80A processor, to be specific. The "A" is important :p

But yeah, you don't normally pull chips from working boards. Though this example may have had a bad cpu that was pulled and never got around to replacing, for whatever reason. Or the 8-Ball back to DK scenario. It's a $3 gamble, try one.
 
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So I got the chip and threw it in powered it up in my DKJR cocktail and this is what I got....

Any suggestions
 

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They're all trying to convince you your board is worthless, and then they'll PM you to buy it.
Nobody's saying it's worthless jackwad, just that dropping a Z80 in isn't going to magically make it a working board.

It is NOT an 8-Ball Action. While the chips may look unoriginal to the untrained eye, they are, in all likelihood, the original chips with stickers put over the windows (common practice). They are one of the correct manufacturers (Texas Instruments), and moreover, they SAY "DK" and their board position on the stickers. I mean, DUH. Also, one rom socket would be empty if it were 8-Ball, and that chip is present and clearly original in the pics. It may have been 8-Ball in the past, but if it was, it was converted back (simple chip swap).

Speaking of untrained eyes... if the ROMS were original, they'd still have the Nintendo stickers that didn't cover the windows... why would they scrape off the old stickers to put on the new ones? The stickers say DK because the 2650 games needed different ROMS for DK and DKJR boards, due to the address map scrambling on DKJr.

Leaving the eprom in that doesn't NEED to be removed means nothing other than that the person who did the conversion was too lazy to remove it. Note that that's the only one that DOES have the original Nintendo label on it.

Note also that the bipolar proms have labels on them rather than silk-screened numbering as on original chips.

If it were actually converted BACK to DK as your inanely claim, the CPU socket would need to be replaced since the pins on the daughter-card maul the original socket (you can see them bent out in the pics), so that a CPU won't make good contact anymore.
 
I have an 8 ball action daughterboard if anyone is interested in it. Its leftover from a board I converted back to DK.
 
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