Search found 32 matches

by Yolt1
Sun Mar 10, 2024 2:12 am
Forum: Reproduction
Topic: Acclaim 51555 PCB compatibility
Replies: 31
Views: 18141

Re: Acclaim 51555 PCB compatibility

Probes exactly reversed Hello there, Thanks for your confirmation I took the time to check and here it is : positive lead to GND / negative lead to pinX = 0,540v negative lead to +5V / positive lead to pinX = 0,640v The results were the same for pins 6, 7 and 8. (and also for pin 9 which is PRG-A0 ...
by Yolt1
Fri Mar 08, 2024 4:38 am
Forum: Reproduction
Topic: Acclaim 51555 PCB compatibility
Replies: 31
Views: 18141

Re: Acclaim 51555 PCB compatibility

Hey there, I remember you suspected pins 6 to 8 beeing for an hypothetic RAM management. OK I'll gladly do that and check those out. But don't get me wrong I am just an old-school video game hobbyist :-) My knowledge in electronics are (very) limited. So, just to get this straight and make sure I ca...
by Yolt1
Thu Mar 07, 2024 8:45 am
Forum: Reproduction
Topic: Acclaim 51555 PCB compatibility
Replies: 31
Views: 18141

Re: Acclaim 51555 PCB compatibility

Hello Guys, Here I am, a little (very) late to the party. I recently stumbled upon this thread and wanted to verify by myself. In PAL region we did not have any of those ACCLAIM games with the MC-ACC "mmc3-clone" chip. All of those game came on normal TL-ROM boards. As you can imagine - he...
by Yolt1
Mon Feb 19, 2024 9:03 am
Forum: Newbie Help Center
Topic: [NES] San Guo Zhi: Chi Bi Zhi Zhan - need help with hacking text output
Replies: 4
Views: 554

Re: [NES] San Guo Zhi: Chi Bi Zhi Zhan - need help with hacking text output

Nice project !
I knew about the game but somehow I always felt reluctant of playing it.. mainly because of the chinese text and odd look
Hope to see it finished soon ;-)
by Yolt1
Mon Aug 07, 2023 12:47 am
Forum: NES Graphics
Topic: NES Tileset Editor
Replies: 7
Views: 3312

Re: NES Tileset Editor

ElectricAdventures wrote: Sun Aug 06, 2023 7:08 pm as part of the new book I am writing "Programming Games for the NES"
Great addition. Thanks
by Yolt1
Mon Aug 07, 2023 12:45 am
Forum: NESdev
Topic: New Book - Programming Games for the NES
Replies: 25
Views: 7759

Re: New Book - Programming Games for the NES

Wow!
That might just get me started in creating a NES game... finally ^^

The least I can say is a big THANK YOU and keep up the good work
by Yolt1
Mon Jul 03, 2023 1:13 am
Forum: NES Hardware and Flash Equipment
Topic: Is this a bad ppu or cpu?
Replies: 16
Views: 1901

Re: Is this a bad ppu or cpu?

Fiskbit wrote: Fri Jun 30, 2023 5:54 pm some serious physical damage
Man, the thing is completely cracked !
by Yolt1
Mon May 22, 2023 2:55 am
Forum: SNESdev Homebrew Projects
Topic: Mega Man II SNES (infidelity) on cartridge without any success
Replies: 5
Views: 2668

Re: Mega Man II SNES (infidelity) on cartridge without any success

That's not a lot of info for us to help...
What kind of donnor did you use ?
Are you 100% sure of the rewiring (from the EPROM to MaskROM) you have done ?

Some additionnal pictures of your repro would be useful.
by Yolt1
Mon Mar 13, 2023 2:10 am
Forum: Homebrew Projects
Topic: Space Mutants
Replies: 12
Views: 3868

Re: Space Mutants

tepples wrote: Fri Mar 10, 2023 8:22 pm shorts won't be eaten.
Loved the subtle reference ^^
by Yolt1
Thu Dec 08, 2022 1:11 am
Forum: NES Hardware and Flash Equipment
Topic: NESRGB V4, another coloring issue.
Replies: 3
Views: 1801

Re: NESRGB V4, another coloring issue.

Great job!
Thanks for the feedback
by Yolt1
Tue Dec 06, 2022 3:41 am
Forum: NES Hardware and Flash Equipment
Topic: Cartridge database
Replies: 5
Views: 1451

Re: Cartridge database

I already made a first comment ^^ It has to do with the page below : http://krzysiobal.com/carts/?action=view&id=378 The PCB marks on this one should definetely not be "NONE". Instead it should be "S6IN1" (as written on the top right corner of the board). I own an exactly sim...
by Yolt1
Mon Dec 05, 2022 12:35 pm
Forum: NES Hardware and Flash Equipment
Topic: Cartridge database
Replies: 5
Views: 1451

Re: Cartridge database

What an awesome initiative!
Thanks for the job you've done so far and the ibfos you gathered all this years and continue to share :-D
by Yolt1
Wed Nov 16, 2022 2:10 pm
Forum: NES Hardware and Flash Equipment
Topic: SD Gundam Gachapon Senshi 3 - No battery in cartridge..
Replies: 2
Views: 564

Re: SD Gundam Gachapon Senshi 3 - No battery in cartridge..

Hey there, The answer is very simple and has nothing to do with the battery... The outer shell does not correspond to the PCB inside. Somebody swapped it The "SD Gundam 3 Gachapon" game is supposed to be a mmc3 TKROM board. Its code is HVC-3G. On your photo the board is a TSROM (also mmc3)...
by Yolt1
Thu Oct 13, 2022 11:12 pm
Forum: General Stuff
Topic: mario RPG with junk graphics
Replies: 3
Views: 2108

Re: mario RPG with junk graphics

To be more explicit When comparing a 64K ram (of the 1L3B) to a 256k (as in a 1L5B) you'll see that 256K has two additionnal addresses : A14 (pin1) and A13 (pin26) So, when putting a 256k ram chip on a 1L3B board you need to make sure these pins 1 and 26 are going where they should! But I must admit...
by Yolt1
Thu Oct 13, 2022 11:03 pm
Forum: General Stuff
Topic: mario RPG with junk graphics
Replies: 3
Views: 2108

Re: mario RPG with junk graphics

Hey there, Just as a reminder Super Mario RPG has a 265K of Ram (1L5B) while Kirby has only 64k (1L3B). You say you swapped the Maskrom AND the Ram... and that's OK. But, did you make sure the 1L3B board (which is planned for less Ram) has the necessary wiring to host a 256K RAM chip ? My guess is :...