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  • I've done a couple of HBBC repairs. When the RTC dies it's dead unless you have a backup of the data. That game won't re-write the data. The board was screwed worse by the owner because he tried to re-install a different version and it wrote the flash then said the security didn't match and that was the end of that hehe!! Luckily he got hold of another good board and sent both to me so I removed the dumped the data out of the 8 flash ROMs and they were added to MAME and a hand-created timekeeper…

  • that Sys12 document in MAME is mine, done over several years If you look at most MAME source files you'll see similar documented info about whatever game board or system the source is for, and that info was usually created by me. They are known as a "Guru Read-Me(tm)(c)(r)" FYI, any S12 top board will work on any S12 bottom board. a blue screen with a weird white Japanese character in the middle of the screen means the CPU (on the top board) can't see the program or the program is bad. Mainly it…

  • not sure why there's a lot of guessing going on here....more than 2 years ago I tested every game on every version of S246/S256 and multiple drives and documented the results here..... github.com/mamedev/mame/blob/m…mame/drivers/namcops2.cpp

  • Yes the old DOS program was Anadisk and yes it is VERY fussy about the hardware. The older the better, common modern PCs won't work with Anadisk. Even so, as far as I know Anadisk can't write the images. There's no Write menu option, at least not in the version I used. If it can then fine, use it to write the images to real floppies. The program I used to re-image the original floppies is called Samdisk. This program supports modern hardware and should be used to create new base images instead o…

  • would be nice to see these released publicly. while it's fine to receive some small reward for doing the initial hacking, there are FAR too many people profiting from the good work MAME has done. Being public allows people (who are capable) to fix their own boards without having to bend over and get shafted. btw, I dumped almost all the S24 floppy-based games for MAME years ago. I can tell you for sure you can't write the MAME images to floppy, there is no program that supports the custom format…

  • be careful. a friend bought 4 S246C's from Yahoo Japan (G-Front or some other big guy from a shop but selling privately) and only 1 of them worked. They were sold as working but since they went from Japan to a different country and took several weeks to get there it's not worth the expense to send them back for a refund. The end result was he paid ~4000Y per box but since only 1 worked it actually cost ~16000Y + postage (~5000Y), so around 21000Y for 1 working unit. So basically for S246 make su…

  • the decrypted roms are available from jammaarcade for free (also all System16 decrypted roms). then just buy a 8751, program it, plug the roms in and you're done.

  • the ding noise doesn't happen on every game, only some of them. if the game plays and you can hear the game sounds then the audio is clearly ok and so is the BIOS (if it was the BIOS nothing would work) the problem is in the video section. possibly the BGA RAM has come loose or one of the other special Sony BGA chips. Either way, they are way too complicated to fix, buy another, they are cheap on yahoo japan auctions.

  • FYI.... members.iinet.net.au/~lantra9j…gurudumps/s32convert.html Sonic The Hedgehog anyone? hack info for Dark Edge is here.... arcadefixer.blogspot.com.au/20…a-system-32-hardware.html If someone hacks the MAME ROMs and puts them here or sends the files to me directly I'll host it on my S32 page with detailed conversion info.

  • I made a special custom adapter to dump those. its not possible to buy replacement roms they were only available in maskrom type. and of course they are 2mm shorter than regular tsop48 so even if you can buy them, the shorter ROM can't be programmed because shorter tsop48 ZIF adapter is not available. if you want to wire it up manually using some SOP44 ROMs, you can do something crazy like this.... members.iinet.net.au/~lantra9j…laze-conversion+sound.jpg

  • S246/256 will NEVER work in MAME. The hardware is just too powerful and there are too many secrets locked up in custom chips. forget it and forget Model 2/Model 3/Lindbergh etc etc. Just buy a S246/256 box and a S246 JAMMA/JVS I/O board. Plug it in and play. It really is that simple. There are many many games that will never be playable in MAME. If you look at the history, MAME is basically done or dead (depending on your take) and very few improvements are being done nowadays (actually since ab…

  • Taito Type X help?

    Mr T Guru - - General Arcade Tech Help

    Post

    the modbios version is crappy and has a number of additional protections. its easy to crack and copy the HDD if you know but the other things are annoying. you need to get another blank HDD and then read this thread.... A Freeware Taito TypeX2 Multigame. Then copy the games from the E: partition of the modbios version to the free multi version and things will improve vastly.

  • erm, the 'someone' I referred to is Niko.....

  • The AT28C16 holds the high scores and test menu settings. Changing the AT28C16 may help. Possibly not. First, check CE/OE/WE (get the datasheet) Go to the test mode and change some settings then exit. Do that while probing the pins with a logic probe. You should see things change from read mode to write mode as you exit the test mode. In write mode they should be... CE = Low OE = High WE = Low If the pins are correct the chip is bad and just change it. If those pins are not correct the chip can'…

  • Quote from 2wenty2wo: “Has anyone successfully setup Mame inside this? ” I have a 1TB HDD with all of the TX2 games and all of the MAME games running on my TX2 with the AttractMode front-end and the Robospin theme (which is one of the few good/professional-looking themes that doesn't look like specific game fan-boy trash) With factory MAME the cab controls don't work. It works with a keyboard. For MAME you'll have to wait until someone hacks MAME to work with the JVS and/or releases a program th…

  • you need to narrow down the problem. there's too many variables. remove the multi and run a standard phoenix rom set on there. let us know how you go....

  • the EPROM are the same as the version I dumped (which is in MAME). so maybe the 8-pin EEPROM on the ROM board or another EEPROM on the main board holds the region. The jumper left pin is tied to +5v. the right pin goes to an unpopulated position labelled RAT19 just to the left of the EPROM. The middle pin is connected to pin 32 of the EPROM (which is A20) So basically the jumper either ties the pin to +5v or leaves it as-is and then it goes to the white connectors etc. For a 27C322 it probably d…

  • it's difficult to see if there's any hardware or installation issue. In fact near impossible because the multi board covers everything. have you verified your B board is good by using a regular set of EPROMs/maskROMs programmed with a Phoenix set? did it work before at any time in the past with the multi-board or has it never worked? If it did work did you mess with the multi recently? Like remove it or drop it or anything like that? If it never worked, remove the multi board and inspect all the…

  • My Nascar works with just swapping the ROM board on a working Planet Harriers and Star Wars Racer Arcade. No other boards were touched. You can check the original Nascar mainboard and swap the BIOS EPROM to your working board as a test. Maybe that will fix it. If not I would guess you have some kind of ROM PCB fault. A common failure point on those ROM boards are the 16-bit buffers (LVCH16245). If those are bad the signals from the EPROMs can't get to the main board. Or maybe not. You say the RO…

  • please don't cross-post the same question in multiple forums! I deleted the other (obsolete) one because your question should be posted here. NAOMI 2 has a known issue where the large chip under the big heatsink comes loose because it overheats due to poor design and a shitty fan. If it does come loose there's not much you can do to fix it. You can try to test if that is the problem. Pull out the motherboard and sit it flat on the floor on a thick book so the connector underneath overhangs. The …