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  1. Scucci

    Atari System 1 (PPR) Graphics Issues

    Working on a PPR that was supposed to be 100% working... ... surprise, not so much. I put GadgetFreak's test ROMs on there and came back with 3 errors on the work RAMs. 2 every time and another occasionally (usually started to goof up on the 2nd run through of the tests)... I removed, socketed...
  2. Scucci

    Spy Hunter Wonky Text

    I'm working on a Spy Hunter (UR) that is having issues with some text. Some letters don't show up on the screen correctly. In the attached picture everything in the "40" row, and ONLY the "40" row, is effected. It appears to be a chip that's failing as adjusting the 5V line effects that happens...
  3. Scucci

    Wms Sys 11 PIA(all) issue (Leons)

    I'm working on a friends Road Kings MPU right now... severe battery damage. I've repaired everything I saw. I'm working with Leon's test ROM now, just pulsing the PIAs. PA1 and PB1 are stuck(high) on all PIAs... I don't know enough (or anything really) about the workings on 6821 PIAs. What am I...
  4. Scucci

    Space Invaders Clocks @ C7 (74LS160 issues)

    I'm trying to get a Midway (L) Space Invaders set back up and running. I started with gibberish on the screen... Eventually found that C7 (9310/74160) was bad and missing 2 signals out (pins 13 and 11 IIRC). I didn't have a 74160 so I bought a couple of 74LS160s. Now I'm getting good clock...
  5. Scucci

    Defender (Later Series) Repeating Vertical Lines.

    Defender wasn't running, fixed power supply and decoders. Ran for a day, came back to it the next day and it was down. Found out a 7474 wasn't processing the clock right, got it back up. Came back to it a couple of days later and now I have vertical lines that change colors with the Defender...
  6. Scucci

    Sega "Cowboy" Schematics

    I started working on one of these mammer-jammers today... the schematics were in the machine but VERY hard to read... I scanned them and adjusted the brightness/contrast settings to get it a bit more readable. They're not great... but I couldn't find any alternatives for D/L online, so here's...
  7. Scucci

    WG K4900 Low Heater Voltage and Severe Horizontal Fold (when cold)

    Bit of a head scratcher for me... Low heater voltage (@1.8V, measured on the bench without the tube and in the cabinet with the tube) and severe horizontal fold. The picture of the neck is with the monitor on for about 10mins. If you leave the monitor on for about 20mins, eventually the screen...
  8. Scucci

    Dragon's Lair / Space Ace G07 NTSC Decoder - NO COLOR

    A couple of days ago the Dragon's Lair started displaying only black and white. Ran the BNC line over to a Space Ace and the picture was in color. I pulled the decoder board and replace all electrolytic caps, D101, and ALL transistors (just 3904's and a 3906... got a blue-million of them)...
  9. Scucci

    Innovative Foto (photo booth) Customization

    I've ran into a photobooth that needs to be customized. It runs on Linux (RedHat) and, while I use Linux from time to time, I can't make heads or tails of where it's pulling images from. When it prints the photo strips, there's a header image and a footer image... I need to change both, but I...
  10. Scucci

    Space Invaders (B/W) HW Color MOD?

    Over the years I've swapped out a few B/W SI monitors with regular color CRTs... and I've always felt a little silly moving the color strips over to a color monitor. Is there, or is it possible, to make a mod for the SI hardware (L-Shape) that could change the color signals based on what...
  11. Scucci

    WMs audio board (Sinistar, Robotron, Pinball) (no audio unless...)

    Using Leon's test ROM I should be getting clicking through the speakers... I don't. PIA checks good, CPU is good, RAM is good, amp is good. If touch the positive lead for C12 AND the -12V test point with my hand, I get the clicking. Putting in the actual game ROM I get the game sounds by...
  12. Scucci

    Swimmer Free Play ROMs (Progress)

    Working on a proper "Swimmer" free play with attract mode hack. Got the basics working... Still says "CREDIT" and all that stuff, but the bread and butter is there. Still working on trying to figure out how to replace "CREDIT" with "FREEPLAY" and removing the credit count. SW2 is in the file...
  13. Scucci

    ROM type used on Cosmic Monsters 2 (Universal)

    Does anyone know the type of ROMs used on "Cosmic Monsters 2" ? A10 and A11 match up to a 2532, but when I read it as a 2532, it's empty (00). When I read them as 2732 (tried on a whim) I get the first 2KB but the last half is all "FF". There are only 2 ROMs. ROMs are good though, game runs...
  14. Scucci

    ROM Hacking : Reading Inputs (Coin Switches)

    Sorry if this has been covered, I searched a bit and didn't find anything. I've been working on a few free play with attract mode ROMs and I've ran across a few games that have me stumped. I'm not strong with assembly, but I can usually stumble around enough to make something work. On most...
  15. Scucci

    Toei CM-F20U H-POS (VR12) Pot Melting

    Subject pretty much says it all... working on a Lady Bug with this monitor in it... At first I couldn't get the picture high enough on the screen, HPOS pot didn't make any difference. Found out that if I push the pot knob in a little the picture would snap back up to where it should be. Replaced...
  16. Scucci

    K7500 H.Width Won't Adjust After Cap Kit and New Flyback

    Subject pretty much covers it. Was chugging through some K7500's replacing cracked flybacks and doing caps. 2 of the 3 are fine, no issues... but one of them has the picture too wide and the pot on the adjustment board has no effect on width, was fine before the cap kit/FB replacement. Checked...
  17. Scucci

    New iCade boards, no attract mode?

    Not sure if I just got a wonky board or what... but it just sits at the game selection screen and doesn't show the attract mode of the games. The board is set to freeplay and no start buttons are pressed... it just sits at the GS screen. I have several of these boards running now, and this is a...
  18. Scucci

    Drive Ring from MW EM Shooter (part # 542-902)

    Subject says it all. When I got the machine the ring had been replaced with a pinball rubber... which had worn out because it wasn't thick enough. Just trying to find the 542-902 drive ring or something that will work as a suitable replacement.
  19. Scucci

    Make Trax FP w/ Attract Mode (in progress)

    Finally got around to writing a REAL simple (read as dirty; disabled reading coin switches, "CREDIT ##" removed, etc) FPwAM ROM for Make Trax. Runs fine in MAME, but freezes on the real hardware with garbage on screen during boot. Are there any special things about the hardware that I'm missing?
  20. Scucci

    Data East Batman Sound Board PROMs

    Does anyone have the files for these PROMs? I have a machine where half the sounds are messed up (static, gibberish, squeals, etc). I've burned another set of EPROMs for the sound board, but I'd like to have the PROMs on hand too just in case. That way I don't have to make two trips if the...
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