SLROM repro not working!

pivotman · Post by **pivotman** » Mon Apr 11, 2011 3:20 pm

Hi, Im trying to make a copy Glitch NES version 0.2.
I using a SLROM as a donor and x2 AM27C010 EPROMS for the code.

I split the file with UCON64 and then used it to pad the CHR and PRG to 128kb be for burning the chips.

Then I rewired it according to your Conversions Guide.

PRG socket:
Bend up pins 1, 2, 24, 30 and 31
Solder pin 2 to hole 24
Solder pin 24 to GND
Solder pin 30 to hole 1

CHR socket:
Bend up pins 1, 2, 22, 24, 30 and 31
Solder pin 2 to hole 24
Solder pin 22 to hole 31
Solder pin 24 to hole 2

But I can seem to get it to work. Does any one see where I went wrong?

Thanks for your help.

qbradq · Post by **qbradq** » Tue Apr 12, 2011 7:26 pm

Is there not a trace you need to cut from pin 22 to pin 2? I think it runs under the PRGROM chip. Check out the notes in the conversion guide for tue details.

pivotman · Post by **pivotman** » Wed Apr 13, 2011 6:15 am

I think im padding the files wrong.
I havn't been making repros in a while and I remember there was an MS DOS code I used to double up roms.

It was some thing along the lines of "expamle.rom + expamle.rom expamle2.rom" But I can't remember the command at the start of it.

Does any one know the full command?

qbradq · Post by **qbradq** » Wed Apr 13, 2011 6:25 am

The command you are looking for is:

Code: Select all

copy /b example.rom + /b example.rom example2.rom

The pin 22 being connected to pin 2 thing is for SLROM boards with 256K ROM chips. See NES ROM Pinouts.txt.

What donor cart are you using? There are many different variants of SLROM that have different pinouts.