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channelmaniac

Aussie Arcade Member
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Everything posted by channelmaniac

  1. And the Taito I/O Controler custom: TC0220IOC Pinned out on Crime City. Verified unused inputs were inputs on an Aqua Jack PCB.
  2. Here's a Taito sound custom reversed out... Opt A is sound sample option ROM A, Opt B is ROM B... 2610 is referring to a signal on the YM2610. This chip handles memory banking for the Sound Program ROM, all the control signals and address decoding for the sound subsystem, and communications to/from the main 68K CPU. It also optionally handles audio volume (not on Crime City, but is on Aqua Jack) and enables for the TC0060 sound mixers. It controls the muting of the audio amp IC as well.
  3. Here's the pinout of the circuit connections for the hybrid module on Lethal Enforcers. Hope this helps you if you pulled traces trying to replace that horrible module. Here's the custom chip from the bottom side of the hybrid module:
  4. Nice! I just grap an Infinikey as I have about 20 of them left here. 🙂 The CPS2 systems are VERY finicky about the connections between the A and B boards. Normally you take them apart and squish them back together VERY firmly. If the plastic mounts inside the cart are broken then the PCB might not seat fully down onto the A board. If the A board was paired with a B board that suffered battery damage then the pins are most likely horribly corroded as the battery fumes are extremely corrosive. A quick check with a jewler's loupe will reveal that damage on the US boards. International ones are harder as they may have female connectors instead of the exposed pins to look at, but looking at the pins on the cart that was mated to it will also reveal the damage. KEEP the corrosion damaged A boards!!! They have a CPS-A-01 on them that you can transplant to a CPS1 A board to fix graphic issues. They also have a CPS-B-21 chip on them that can be used to convert a board to run something else or to repair a dead C board. Just keep in mind that the 21 chip only works with certain games.
  5. What TMS speech chip? I have a couple different ones here. Perhaps someone coming to Texas for the Pinball Festival can bring chips and stuff back from me and other sellers here. I figure at a minimum @Womble would also want to get in on the Suitcase Express Delivery. OOPS... Perhaps I should look at dates before responding. what a N00b mistake on my part. Anyway, offer still stands for folks needing chips from Texas if someone's coming over for TPF.
  6. Who's coming to Texas for the Texas Pinball Festival this year? I won't be there as a vendor or attendee, but am planning on coming to the swap meet on Saturday morning to see what kind of goodies I can buy to repair and sell or use for parts. It's only a 25 minute drive for me though... for y'all it's a 16 hour flight from Sydney to DFW. 🙂 Raymond
  7. Here are three Konami customs... The protection custom was reversed using my multimeter and a PCB. The other two were pulled from partial schematics of Vendetta. I'll be posting more as we need to get these chips documented better in the community. 054538 - Protection custom from Sunset Riders 053260 - Sound custom on TiT 053251 - Graphics mux chip from Simpsons, Vendetta, and X-Men
  8. Necro bump... Y'all might be interested in this post over on Facebook... "Star Attack" It's on a MU-1A.
  9. The vast majority of problems I've found with CPS-1 A boards is the pesky CPS-A-01 custom chip. You can get one off a donor CPS-2 A board. For that version, try downloading the SF2CE.zip file from your favorite ROM site.
  10. Swap the A board out and see if the problem goes away. The CPS-A-01 is a custom chip and, unfortunately, a high failure item.
  11. To close this out... I was asked for 'a picture or 2 of the PCB', sent that in, and received a reply of "Thanks a lot! This is now added and will appear in MAME 0.239, as we're too late for 0.238."
  12. Depends on the board set it's based off of. There were multiple game boards used for Wonder Boy. One is based on Choplifter.
  13. Go here for a list of crosses for those PROMs. https://www.mikesarcade.com/cgi-bin/spies.cgi?action=url&type=info&page=PromRef.txt You *CAN* substitute an Open Collector for a Tri-State in many cases *if* you have the outputs tied to +5v with resistors, typically between 1K to 2.2K ohm.
  14. Here are the 2 entries for the PCBs I resurrected. One had no ROMs at all, some corrosion, and attempted repair damage (pulled plated thru holes.) The other had no Sound Program ROM, 4 missing 2148-55 Sprite RAMs, and a missing 74LS163 chip.
  15. The name is perfect as they are hell to work on. I had 2 here that were partially parted out... One had no ROMs and all the sprite and background ROM sockets corroded up plus some damaged traces under the dual port RAM. The other had one bank of 2148 Video RAM and a 74ALS163 removed and traces damaged. They both were set to use 23C1000 Mask ROMs for graphics. One that had the ROMs had 27C010 installed for the 2 Program ROMs while the other one was jumpered for 23C1000 Mask ROMs. Comparing those jumpers, I decoded all the jumpers on the board for all three banks of ROMs. Here's a copy from my repair log entry I did tonight: Enjoy! ---------------------- Model: Hellfire Tip: Jumper settings for ROMs O = Jumper Open C = Jumper in place Main Program ROMs: 23C1000 ROM: JP1 O, JP2 C, JP3 O, JP4 O 27C301 EPROM: JP1 O, JP2 C, JP3 C, JP4 O 27C010 EPROM: JP1 C, JP2 O, JP3 O, JP4 C Background ROMs: 23C1000 ROM: JP5 C, JP6 O, JP7 O, JP8 O 27C301 EPROM: JP5 C, JP6 O, JP7 O, JP8 C 27C010 EPROM: JP5 O, JP6 C, JP7 C, JP8 O Sprite ROMs: 23C1000 ROM: JP9 O, JP10 O, JP11 C, JP12 O 27C301 EPROM: JP9 C, JP10 O, JP11 C, JP12 O 27C010 EPROM: JP9 O, JP10 C, JP11 O, JP12 C These jumpers affect the whole bank. Take caution when desoldering the power and ground traces on this PCB. They are very heavy and hard to desolder cleanly.
  16. Never mind... found it thanks to the Internet Wayback Machine. It had a good version of the page from last year with the email address for submitting the code dump. 🙂 Super Space Invaders 91 (Majestic 12) US Region, complete with the "Don't do Drugs" screen and legal warning about US use only has been submitted!
  17. Repaired a PCB tonight with a US region ROM version that isn't in MAME... and the site with the submission info is borked. https://wiki.mamedev.org/index.php/Submitting_Source_Code Can anyone PM me the email address to submit the ROM dump?
  18. Depending on the model, it might not be repairable. If it has a surface mount Z80 chip the only source would be a donor Sega Game Gear. Luckily those are on very few models and most use standard 40 pin DIP Z80A CPUs. 🙂 Usually the problem is a dead Z80 CPU. Do you get the same error with no cartridge(s) plugged in?
  19. Hey boss, those TI chips rust because they are built like Namco customs - steel legs with silver plating on them.
  20. Yeah, if the music works then your Z80, YM2151, and the HA13001 are all working and don't need replacing. That leaves the OKI chip, the 2 sound sample ROMs on the B board, the interconnect between A and B board, and the passive components around the OKI.
  21. Unfortunately, you'll need another boardset to swap things around to narrow it down. The C boards are common failure points as is the custom chip on the A board.
  22. Not a super cap... When that goes out your sound settings are forgotten and don't match what's in the EEPROM... They usually end up at full blast. Hold down the volume down button while you turn on the game and hold it until you see the splash screen. That will reset tha audio. It happens sometimes when you swap carts around. BTW: This is Capcom CPS2, not System 11.
  23. A Unibit / Stepped bit works as well, but you have to be very careful the hole doesn't go offcenter.
  24. Y'all in Down Under have been kind to this outsider from Up Over so I sent ya a bit of PayPal love. Hope it helps.
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