Hi everyone,
I have just recently got into the into the whole nes hardware thing and have spent heaps of $$$ on a burner, eproms, and eraser, doners etc and have got sh*t to so show for it
Ok, so first i tried making a Earthbound zero cart per these instructions
Earthbound Zero:
- Board required: NES-TKROM-10 (Tecmo Basketball works)
- Use 2 D27C2001D-15 or equivalents
- Remove mask roms
- Bend up pin 1, 2, 24 & 30 on PRG eprom
- Solder into place of the masked rom.
- Tie pins 1 & 32 together (+5)
- Tie pins 22 & 24 together
- Tie pin 2 & pin 24 hole together
- Tie pin 30 & pin 1 hole together
- Bend up pins 1, 2, 22, 24, 30 & 31 on CHR eprom
- Solder into place of the masked rom.
- Tie pins 1, 31 & 32 together (+5)
- Tie pin 30 & pin 1 hole together
- Tie pin 24 & pin 2 hole together
- Tie pin 2 & pin 24 hole together
- Tie pin 22 & pin 31 hole together
It was the first time i had soldered anything so i wasn't suprised when it didn't work.
Then i tried the mod on this page http://beigerecords.com/cory/Things_I_M ... _2005.html
To avoid the whole mess of desoldering i simply snipped the old chip then soldered the the new one onto the old legs And it worked!!
So with my new confidence i tried another Eb zero and it still doesn't work and i have no clue why.
I burnt the new chips and soldered them onto the existing snipped legs and lifted and soldered the legs as per the guide.
i even went out and bought a multi meter to test it and everythings connecting properly ( although the mutli meter takes slightly longer with some of the connections).
I have never felt so frustrated in my life so and help/advice is really appreciated
I have just recently got into the into the whole nes hardware thing and have spent heaps of $$$ on a burner, eproms, and eraser, doners etc and have got sh*t to so show for it
Ok, so first i tried making a Earthbound zero cart per these instructions
Earthbound Zero:
- Board required: NES-TKROM-10 (Tecmo Basketball works)
- Use 2 D27C2001D-15 or equivalents
- Remove mask roms
- Bend up pin 1, 2, 24 & 30 on PRG eprom
- Solder into place of the masked rom.
- Tie pins 1 & 32 together (+5)
- Tie pins 22 & 24 together
- Tie pin 2 & pin 24 hole together
- Tie pin 30 & pin 1 hole together
- Bend up pins 1, 2, 22, 24, 30 & 31 on CHR eprom
- Solder into place of the masked rom.
- Tie pins 1, 31 & 32 together (+5)
- Tie pin 30 & pin 1 hole together
- Tie pin 24 & pin 2 hole together
- Tie pin 2 & pin 24 hole together
- Tie pin 22 & pin 31 hole together
It was the first time i had soldered anything so i wasn't suprised when it didn't work.
Then i tried the mod on this page http://beigerecords.com/cory/Things_I_M ... _2005.html
To avoid the whole mess of desoldering i simply snipped the old chip then soldered the the new one onto the old legs And it worked!!
So with my new confidence i tried another Eb zero and it still doesn't work and i have no clue why.
I burnt the new chips and soldered them onto the existing snipped legs and lifted and soldered the legs as per the guide.
i even went out and bought a multi meter to test it and everythings connecting properly ( although the mutli meter takes slightly longer with some of the connections).
I have never felt so frustrated in my life so and help/advice is really appreciated