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  1. SNESNESCUBE64

    Who Here Fixes Ms Pacs

    Which is still a good thing to experience. Someone who wants to repair their own boards should know how to fix their screwups (both troubleshooting and bodge work). It is incredibly valuable to learn how to do this kind of work. It also keeps ya humble. I work on boards just about every other...
  2. SNESNESCUBE64

    Favorite Controller

    I really like the yoke on Midway Space Encounters. If the encoders on that is solid, it plays great. Even if they aren't the best it is still solid. I am also a huge fan of the tempest spinner. It is just so fluid with the movement. I think my least favorite right now is probably my sinistar...
  3. SNESNESCUBE64

    Solved (I think) - Sinistar Freezes During Title Screen and Gameplay

    The bottom of the machine was covered in dirt. I still have to do a better job cleaning this but I was itching to get it working.
  4. SNESNESCUBE64

    What fixed your game today / general repair log

    It was one of my requirements for a bench setup, I made it using a lot of piece of scrap material I had in the garage. Eventually I wanna make an actual sheet metal enclosure, but that is a down the road project...
  5. SNESNESCUBE64

    Solved (I think) - Sinistar Freezes During Title Screen and Gameplay

    I sure hope not. I have no idea what it was. One thing I noticed on this board is that there are a couple spots with corrosion. Not sure if it was bugs or mice or whatever. I spent a lot of time cleaning this cabinet... I've cleaned it off since there hasn't really been anything severe. This...
  6. SNESNESCUBE64

    What fixed your game today / general repair log

    Game: Sega Head On 2 (Slimline/VIC Dual PCB) Symptoms: Accelerator button always pushed in Troubleshooting Steps: This was a pretty straight forward repair. When troubleshooting input stuff like this, you will usually have one of 3 failure points: Cold solder joints on the pin headers/harness...
  7. SNESNESCUBE64

    Solved (I think) - Sinistar Freezes During Title Screen and Gameplay

    The Gorgar pinball used the same sound and speech board. I figured it would be funny to put that because they are both hungry.
  8. SNESNESCUBE64

    Solved (I think) - Sinistar Freezes During Title Screen and Gameplay

    I think you nailed it. I piggybacked one and it ran a whole hour without crashing. As soon as I pulled it, next time it went into gameplay it crashed. I went ahead and swapped the 74ls373 at 3H and am gonna let it run for a while. I also put a fun message on the title screen, it's neat that I...
  9. SNESNESCUBE64

    Solved (I think) - Sinistar Freezes During Title Screen and Gameplay

    Nothing serious. Little bit of green on the holder solder points and the holder was trashed. I made myself a remote battery pack to keep em off the board from now on.
  10. SNESNESCUBE64

    Solved (I think) - Sinistar Freezes During Title Screen and Gameplay

    That could make sense. I didn't consider it because I figured I'd have more problems being it is with the dram. But I suppose the occasional miss with latching would cause problems. I'll take a peek after work today. Thanks.
  11. SNESNESCUBE64

    Solved (I think) - Sinistar Freezes During Title Screen and Gameplay

    Managed to get this exactly once. Odd that the background was yellow for this. Sometimes if I run the RAM test, through the coin door buttons it will say ram 21 or 22 (they are both new), once it said 24.
  12. SNESNESCUBE64

    Solved (I think) - Sinistar Freezes During Title Screen and Gameplay

    Here's what I tried this evening: Replaced the sockets for the decoders and CPU, those were a bit yucky. No change. Burnt a new ROM set for the off chance something goofing around. No change. I am going to start poking around tomorrow, I'm gonna start by poking the 153s, I've had terrible luck...
  13. SNESNESCUBE64

    Post-capkit Sanyo 20EZ width issue

    See how it looks in the game. Tpg can give you a "false alignment" as its timings are different than the game. Sanyo 20EZs can be a headache with this alignment stuff. Games like donkey kong which would have used a 20EZ have position adjustments on the game board. I typically do calibration...
  14. SNESNESCUBE64

    Post-capkit Sanyo 20EZ width issue

    A couple things: make sure you are hooked up to *negative* sync, looks like you might be hooked up to positive sync. Check that first. Otherwise, try asjusting horizontal hold. Sometimes when it isn't locking correcrly it might do that.
  15. SNESNESCUBE64

    Solved (I think) - Sinistar Freezes During Title Screen and Gameplay

    Switch test passes yes, it's goofy sometimes as the cable on my widget board is pretty flakey. I didn't think to run the sound tests because I could hear the sounds and all that. Although earlier it played the starting music inbetween lives 2 and 3, so maybe there is something there. The game...
  16. SNESNESCUBE64

    Solved (I think) - Sinistar Freezes During Title Screen and Gameplay

    Like I had mentioned I kind of poked that pin just to see if it was getting stuck low. Even when the game locks up that pin is still toggling. It's not stuck low or active. It leads me to believe that it's getting stuck somewhere in code execution.
  17. SNESNESCUBE64

    Solved (I think) - Sinistar Freezes During Title Screen and Gameplay

    I see that the halt pin on the 6809 is toggling quite a bit but doesn't get stuck when it locks up. Could it be getting lost in code due to a fualty ROM? I kinda wish I had a 6809 fluke pod for stuff like this. What's funny is when it locks up I can still start a game.
  18. SNESNESCUBE64

    Solved (I think) - Sinistar Freezes During Title Screen and Gameplay

    No it is not. When it locks up, strangely enough the 74ls393 used in the watchdog is still being refreshed. I didn't hook up my logic analyzer to it, but it seems only the first two bits are counting on it which I would think is normal for a watchdog. I replaced the 5414. There was rust...
  19. SNESNESCUBE64

    Solved (I think) - Sinistar Freezes During Title Screen and Gameplay

    I'm running a stock (albeit rebuilt) power supply, I removed the switcher setup that was hacked in. I'll swap the cmos ram tomorrow. I never had issues with booting to factory settings, it seems to have hles the settings like freeplay just fine. But I am with you that it might be cmos. Perhaps...
  20. SNESNESCUBE64

    Solved (I think) - Sinistar Freezes During Title Screen and Gameplay

    So here are a couple additional things I tried since I have the resources available. - swapped the special chips with ones I had in stock (no change) - swapped the 4116s for giggles with a tube of NOS ones, no change so the old stuff is going back in - pulled the batteries, reset the high score...
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