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I agree - I have ordered some of the things from this forum from Digikey and I hope to begin more testing next week.

Yes , We have had luck with spraying "Static Guard" in an 3 foot by 3 foot area in front of the machine but most of the people who buy these machines from us are annoyed at this fix , they want something more permenent that doesnt require any interaction on thier part.

For the wrist strap testing idea, 2 questions 1. If the user touches the metal control panel and the problem does not occur , were would the next step be ? Would the user go and try and touch something closer to the main pcb ? 2. What are we proving by doing this ? Or maybe disproving is...

Since at this time we cannot re-engineer the main board , all of our atttempts to fix this problem must be extrernal to the board , so we need to try something most likely at each input itself. So what ever fix we try will be installed on each switch , so an array might not be feasable.

these transorbs / TVS's , I am looking on Digikey, what specs would you guys suggest to play with?

ok cool gas lighter ignition thing ,, like for a gas grill . I'll try that. I have tried a 'stun gun' with nothing at all to help me , I have been told that the stun gun is about 25-35kv but the static discharge from a person is a much higher range....any confirmation here ? Does any one want...

ok , so if we were going to make a shield for the main pcb, what would it be like , how would it attach to the board or would it just go to ground ? If we are using the ground - now which ground ? Earth ground ( my ac ground ) or the DC ground from the power supply ? Next - If the static is...

Check out these shots of the control area and the main pcb , i hope you can see the images

ok great , the .1uf and 4.7 uf or 10 uf , where to you recommend that I put them , across the vcc to ground at the power supply , across the vcc at the cpu ? or where ? Do i use all of the values in paralel ? or just 1 at a time till I get 1 that works ? As far as the caps on the panel cables...

The make this more understandable, the machine is one of those claw grabbing games where you win the stuffed toy, so Yes there are controls ie: Joystick , buttons , coin acceptors, that are mounted to the metal front control panel. THere are 1000uf caps across the power inputs to the main logic...

We are using a 89c52 cpu in a machine and we are having horrible static issues. When the user touches the machine and discharges static to it it resets the machine. We have tried a lot of grounding throughout the machine and still no luck . It only seems to happen when the humidity drops low (...