UNROM to UOROM

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UNROM to UOROM
by on (#98028)
UNROM to UOROM
Bend up eprom pins 1, 2, 24, 30, 31, and 32.
Bend up MC74HC32 pin 3.Can be left as is.
Solder pin 1 and 24 to hole 14.
Solder pin 2 to hole 22.
Solder pin 30 to MC74HC32 pin 3.
Solder pin 32 to hole 28.

I got this from looking at tokumaru pic of his uorom test cart. Worked for me.

Edit... some games wouldn't work in cart if 24 wasn't grounded.
Re: UNROM to UOROM
by on (#98312)
Thanks! I'll add it to my list of conversions.
Re: UNROM to UOROM
by on (#136723)
Some additional info, and then questions:

On a NES konami unrom board, the inputs for 7432 pin 3 (1Y) are
74161 Q3 (pin 11)
CPU A14 (cart edge pin 41)

On the TAITO-UNROM board used for Takeshi no Chousenjou, those two signals go to pins 4 and 5, 2A and 2B. So in that case it should be 2Y on pin 6 going to CHR A17.

And so the question: I'm trying to put the translated rom (http://www.romhacking.net/translations/1682/) on the original cart. I expanded and patched and test on a socketd NES cart and everything seemed ok. But I don't get anything after installed the eprom on the original board. Thoughts/ideas? Does this board do something else differently than the NES unrom board?
I'm assuming the prg layout is regular nintendo 128K prg, since it was a 28 pin mask rom.

wiring
pin 1 up
pin 2 -> hole 22 chr a16
pin 24 -> pin 16 gnd
pin 30 -> 7432 pin 6
pin 31+32 -> hole 28 5V