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Louie Bee

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Louie Bee last won the day on September 19

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About Louie Bee

  • Birthday 09/05/1977

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    Northwich

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    Can't find my account but not been on for a couple of years. Looking for Blue Streak :p

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Old Fruity Maestro

Old Fruity Maestro (19/19)

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  1. Have you tries chopping my files in half to see if the emulator only covers MMM upto 24 pin ROMs? I'd guess this 2764 MMM board was really short lived as procon plus soon came along. There don't seem to be any external interlocks (like system 80 has) as the board boots with just 15V applied to the smoothing cap. So nothing external to the baord on any ports is holding it in reset (unless my ports happen to be stuck)
  2. Jumper is just a temp solution but so glad to get it going. Here is the mess that got it running Edit - Pin 17 is the (not) NMI (non maskable interupt) so I knew a low signal was not good as it holds CPU in interupt state. I really don't like not been able to use the Cro. Almost gave up on this one!
  3. Thanks Bob & everyone. I got it to do a reset beep repeatedly and got stuck without being able to probe it. I tried linking a load of batteries together and putting around 15V across the big capacitor - same repeat beet but batteries didn't last long. I borrowed 777h PSU and put the 15V line across the big cap and could probe it without blowing the 16.A fuse on that PSU. Finally I could see CPU pin 17 was low (should be high on procon so didn't look right). the pin has a pullup resistor bit is also linked to a bit of the board which has missing components (look like never been fitted) and not east to see where track is shorting. It didn't seem to bell to anything. So pullup resistor jumped directly to CPU pin 17 and we are in business (in a kind of resistor half hanging off the board and CPU leg not in socket linked by wire temp. hack) I still don't really know why I can't probe it with it's own PSU. One of life's mysteries I guess. only draws 0.003uA from a 3.6V battery.
  4. Hi Bob It had 5517 ram. I just used the 6116 as a sub as I know it's fast enough for pc90. also has 4 extra pins on the rom sockets to accommodate 2764. Most other chips are the same I think. The Cro won't work on some boards without ground but is fine on all JPM boards without ground. All procon boards need grounding so nothing unusual. If I ground it and probe CPU pin 1 fuse gone. Same with any other pin probe. If I put the Cro ground onto ROM pin 1 the machine starts flipped out with all sorts of things making noise. Will have a look on another machine to see if it's Cro gone bad. Gone through quite a few 1.6A fuses today.
  5. These do run (sometimes) in the machine. But I can't for the life of me get it running today. Blows the 15V line fuse if you touch it with the oscilloscope
  6. The board has a switch for 2732 or 2764. My rips were from 2764 but perhaps if you split the ROMs in half they may run as 2732? Worth a shot bud
  7. Thanks Ron . The back door has 86 but game name don't match, hence my confusion. The Levi paid sticker in the cab also says m/catcher. Is mmm (triple M) and PCL maxi the same Tec? Most of the chip layout is the same as mmm
  8. Here are the ROMs Maygay Money drop.zip I can't make up my mind if it is Money drop as the labels in the back say Money Catcher
  9. This is the machine by the way
  10. Thanks also HT6, It's not Procon Plus, PC90 or PC92 as they all have a stack of PIOs Pc90 board Procon plus
  11. Thanks for the input. System 80 is JPM & System 83/85 I think are Bellfruit. This is from a Maygay
  12. Thanks Bud. Looking at the circuit diagrams it has 2708 roms & 24 pins Here is a PCL Maxi I worked earlier... Thanks for the input @CanonMan. I'd suspect PCL MAXI came before MMM
  13. Hi All, Anyone know what maygay tec this is please? Switches up to 2764 Note the single 24 pin ram & 2764 ROMs that don't quite match MMM...
  14. Thanks for this. It's helped me suss out a 20P play rom issue, along with the classic @spamade some time ago.
  15. Something like this (Can't remember exactley)
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