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(Topic ID: 147980)

Reset issues

By V_piscopo

4 years ago

Topic Stats

  • 8 posts
  • 4 Pinsiders participating
  • Latest reply 4 years ago by V_piscopo
  • No one calls this topic a favorite


Linked Games

#1 4 years ago

So I'm working on a gottlieb system 1 dragon. I've never worked on a system 1 before. I'm having an issue with everything reseting. The game loads up I credit the machine for 2 players playfield lights do not reset to starting position (0) same player shoots again light stays on as well. The outhole kicks my first player ball out I play every switch / pops, flips....etc work. Ball drains, outhole will not kick out ball or move to second player, lights remain not reseting. Seems like there's something simple I'm missing here?

#2 4 years ago

Connect all the circuit boards' ground with wire to a common spot (wire nut, maybe?)

Probably better info over at pinwiki.

#3 4 years ago

Have you ever tried this with a system1? I'll check pin wiki tonight. Thanks

#4 4 years ago

Do the ground mods ,check j7 connector for playfield switches and inter board connector both may need to be re-pinned

#5 4 years ago

Ill check it out in the am

#6 4 years ago

Did all ground mods and re pined the whole bottom of CPU board.....problem remains???

#7 4 years ago

I am confused here. You say in your original post it's a system 1. However, your description of the scores resetting to (0) position would indicate an EM.

EM's aren't "system 1".

In your most recent post, you say "MPU board". So I guess it is a system 1. Correct?

If it is in fact a system 1, and you the S.P.S.A. lamp is stuck on, you could have a power supply or MPU issue. Check for +5DC at the MPU's left most connector. You say you re-pinned a connector... double check the pins are in the correct order. I have swapped a pin on accident when re-pinning system 1 machine and it can cause so VERY strange stuff, exactly like what you are describing.

Have you confirmed that the outhole switch is working? DON'T assume that since the ball kicks at the start of the game, that the outhole switch is working.

The outhole COIL IS FIRED ON A SYSTEM ONE GAME START, EVEN IF THAT SWITCH IS NOT WORKING! The MPU tells that coil to go, not the switch itself. The switch DOES however, tell the game to count up bonus, then fire the coil after each ball. NEVER at the start of the game though.

#8 4 years ago

Ya it's a system 1. When I said reset to 0 I ment bonus lights are still at 100-1,000....etc. I'll check outhole switch tonight. That makes sense seeing that it only spits out a ball at beginning of game and points don't reset. As for re pinning I don't have a schematic I just re pined and replaced to original slot I took out of. I suppose whoever owned it before me could have had them in the wrong spot but at this point outhole seems much more likely. Thx for the advice. I guess I assumed the CPU reset scores regaurdless of outhole position. Learn something new everyday

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