Quantcast

Search:

Type: Posts; User: Fisher

Page 1 of 2 1 2

Search: Search took 0.01 seconds.

  1. Replies
    0
    Views
    3,916

    Battery backup on pirate game help

    Hi, I recently got a pirate version of Ayrton Senna's Super Monaco GP 2.
    I know that the original game has an SRAM + battery backup system.
    This PCB had space for the SRAM, battery, and a backup...
  2. Replies
    3
    Views
    2,253

    Bingo! That was it. Specifically the ROM...

    Bingo!
    That was it.
    Specifically the ROM containing the "High" bytes of the 2nd bank.
    Unfortunatelly I'm unable to post pictures from my crappy cellphone after some updates I installed, so no...
  3. Replies
    3
    Views
    2,253

    Ok, I managed to finish the game with a Game...

    Ok, I managed to finish the game with a Game Genie code: RYZA-G6YE.
    It crashed at the staff screen.
    Does it mean the problem is on the 2nd ROM bank?
    Thanks in advance.
  4. Replies
    3
    Views
    2,253

    Help with Panorama Cotton translated repro

    Hi, I recently have built a repro of the translated version of Panorama Cotton.
    I played the game up to the 2nd stage and it seems to be working fine.
    Unfortunately, I'm getting grabbled text on...
  5. Replies
    4
    Views
    1,904

    Yes. I still need them or a 3D model of he lid.

    Yes.
    I still need them or a 3D model of he lid.
  6. Replies
    6
    Views
    1,214

    Fine. Since I couldn't find a way to upload the...

    Fine.
    Since I couldn't find a way to upload the file here, I'm posting the link for it on my Google Drive:
    https://drive.google.com/open?id=1YdWD_RMu-ThfiDwEzmmuYk076la9nOI8
    Hope you guys can...
  7. Replies
    6
    Views
    1,214

    Ok. MD5 checksum:...

    Ok.
    MD5 checksum: 466b53365cc8a4855d3b9131066d4ac6
    I don't know, it's probably a preview, a pirate copy or a bad (defective) ROM.
    I redumped them a few times and got exactly the same CRC32/md5sum....
  8. Replies
    6
    Views
    1,214

    I think I found a prototype

    Hello.
    Messing with some old stuff I found a board with 2 EPROMS.
    After removing and reading them, they seemed to be 2 8bit ROMS combined to form a 16bit one.
    After merging them, at 0x100h I...
  9. Replies
    4
    Views
    1,904

    Images of a Sonic & Knuckles lid

    Hello.

    I have this game and unfortunatelly lost the lid a long time ago.
    Since I know the only possible way to replace it would be 3D printing a new lid, I'm asking for some nice and detailed...
  10. Replies
    19
    Views
    3,220

    Thanks @chilled! Any complete chronological...

    Thanks @chilled!

    Any complete chronological launch list that you guys know about?
  11. Replies
    19
    Views
    3,220

    1st Mega Drive 8MBit games

    I was thinking a little and unfourtunatelly coundn't find a definitive answer to this question:
    What were the 1st lot of 8 MBit megadrive games?
    I found some places saying that Strider was the 1st,...
  12. Replies
    11
    Views
    2,364

    Thanks! I'm asking it because I'm low on money...

    Thanks!
    I'm asking it because I'm low on money and I'll get my paycheck only an the end of the month.
    Since it's in pretty bad shape I think other buyers will avoid it.
    I think I'll buy it...
  13. Replies
    11
    Views
    2,364

    Help identify MegaDrive game

    Hello.
    I've found a cheap megadrive game online.
    The seller don't have an MD to test it.
    It has no label, but I got a picture of the board:
    14066

    If I'm seeing correctly the ROM chip has...
  14. Replies
    18
    Views
    3,218

    I have huge doubts about this subject, here is...

    I have huge doubts about this subject, here is why:

    I've bought a 3.3v Flash repro of SunsetRiders for my SNES.
    It was played by me and the kids for 8~12h a day for 6 months.
    I them decided to...
  15. Replies
    18
    Views
    3,218

    AFAIK this new megadrive is based on a RED KID...

    AFAIK this new megadrive is based on a RED KID 2500.
    I've found some more details here:

    https://assemblergames.com/threads/two-fans-have-reportedly-fixed-the-atgames-genesis-audio-issues.66488/
    ...
  16. Replies
    18
    Views
    3,218

    Tec Toy no level shifters??

    According to this article https://db-electronics.ca/2017/07/05/the-dangers-of-3-3v-flash-in-retro-consoles/ 3 volts memory are nocive to retro consoles.
    Now accoring to this video:
    ...
  17. Replies
    5
    Views
    1,035

    Sure I can! I just didn't before because I...

    Sure I can!
    I just didn't before because I tought nobody ever would be interested...

    The power circuit is pretty simple, only 2 diodes and 2 resistors.
    I've drawn it by using ASCII, hope it's...
  18. Replies
    15
    Views
    6,187

    I've bought an NES, a MegaDrive and a SNES...

    I've bought an NES, a MegaDrive and a SNES cartridges from them, all single game, all 3.3v parts.

    In the end this partially killed my SNES (it fails the DIV 16/8 test).
    It still works and I can...
  19. Replies
    15
    Views
    6,187

    Also, be aware that most, if not all, repros sold...

    Also, be aware that most, if not all, repros sold in Aliexpress uses 3.3v components.
    You can have better information about what I'm talking about in this article:...
  20. Replies
    13
    Views
    2,858

    Finally a bit of spare time! I disassemble the...

    Finally a bit of spare time!
    I disassemble the Genie.
    Not much to see, just an ASIC, 2 ROMs the led, a resistor, the switch an electrolytic and some decopling capacitors.
    The pictures aren't that...
  21. Replies
    7
    Views
    1,301

    Sorry... I read quickly the thread and payed...

    Sorry...
    I read quickly the thread and payed attention mostly to the last post...
    That's probaly not the laser.
    My bad!
  22. Replies
    7
    Views
    1,301

    Most laser units have a power adjustment near the...

    Most laser units have a power adjustment near the lens, on the optical pickup.
    When the laser gets older / worn out, you can carefully adjust it and get a little more life out of it.
    But be extra...
  23. Well, mine still have some jailbars, but they're...

    Well, mine still have some jailbars, but they're very faint, almost unoticeable, specially on dark screens.
    The MD I have done the mod is this clone:
    13960
    As you can see, there's a crystal near...
  24. Replies
    13
    Views
    2,858

    Thanks for the info guys. As soon as I have some...

    Thanks for the info guys.
    As soon as I have some more spare time I'll carefully remove the label and open the Genie, so I can see better what's inside.
    I'll also try to get some nice pictures,...
  25. Replies
    5
    Views
    1,035

    I also would like to know. It was on a lot of...

    I also would like to know.
    It was on a lot of "junk" I bought.
    Many of the boards only needed some cleaning and worked fine.
    Most of them seemed like they were "buried" for some time.
    They were...
Results 1 to 25 of 35
Page 1 of 2 1 2