when a switch is activated i feel like my computer is late to give the information to the coil or to the points to be scored, sometimes there are 5 seconds or more before the coils or even the sound or the points being activated. somebody can help me please. thanks

Never heard of this before.....

Do the switches register quickly in Test Mode or are they just as slow as game play mode?

Make sure you have the latest software ( CPU ) version. Prehaps your  CPU game ROM (s) are a problem? I would start here....

Good luck!

yes the switch registered quickly in test mode and yes i have the latest eprom, but i still have the old one so maybe i could try to put back the old one and see if the problem is still there. thanks and i will try this.

This is an ''interesting'' issue...! Why does the switch ok in test mode and when playing if I understand correctly, there's a lag...?  Is it each time? Once upon a time? I would to replace the switch, with another you have on the same machine that is working fine, this way, you'll see if the switch is bad.

I would bet on the switch.

Eric

no its not each time and its not on the same switch every time, for exemple : do you ever play lethal weapon , if yes remember when you go thru the left or right spinner thats make your uzi clip full of bullet and you have to shoot a men, sometimes there is a lag of 5 seconds before the load of the uzi  and its supposed to be load at the moment, and sometimes during the play the dmd goes blank and as soon as a get a video mode the dmd is ok and when the video mode is over , the dmd goes blank again , and when i lost my ball the dmd is ok and he shows me my bonus , and at my next ball everything is ok. And thats not happening on every game . ???????? weird.  somebody can help please?? and sorry for my english  

the same problem happen again!! can somebody help please . thanks

Hmmm, seems like this might be a challenging issue to troubleshoot, especially with limited info.

Perhaps one of the following two events might be occuring:
- either the processor keeps being interrupted at a much higher rate than normal, by something else (display interrupt?),
  preventing the game from servicing the switch matrix at its normal speed, or
- the crystal/oscillator for the CPU clock is intermittent and sometimes runs too slow, making the game play slowly?

Are all the chips properly seated in their sockets ?
In switch test, are they detected immediately ? (just to confirm).

Is this temperature-dependant (only occuring when hot, or when cold?)

Did you check for any cold solder joints under the connector pins on the MPU board?


Laisses-nous savoir...


Bonne chance!
- Sylvain.

merci sylvain je regarde tout ca et je t'en redonne des nouvelles.

in switch test ,they are detected immediately. that can happen hot or cold the temperature seem to not be an issue. all the chips is properly seated in their socket, for the cold solder joints everything looks alright.  quand tu parle de joints de soudure froid , veut tu dire sous le mpu board ou sous les connecteur, parce que j'ai enlever le mpu board au complet pour regarder en dessous et tout a l'air correct et les connecteur aussi ont l'air correct????? est ce que ca se peut que la chip c5 sois le probleme?? merci.

qu'est ce qui arriverais si 2 pin sous le mpu board serais liée ensemble a cause de la soudure qui aurais chauffé? parce que je suis pas sur si elle se touche vraiment mais a cn4 et cn5 j'ai l'air d'avoir 2 pin qui sont liée mais c'est pas évident a voir , donc je veut juste savoir ce qui pourrais se produire si ca arrivais. merci beaucoup.

Impact de 2 pins short:
Ça c'est une question difficile. Un short entre deux pins sous un board, si présent, peut créer toutes sortes de problèmes,
dépendant de quelles pins sont court-circuitées...

Le chip C5: c'est un EPROM ?  Oui, un mauvais EPROM peut causer une game de jouer au ralenti.

Soudures froides: Oui, en arrière du board; check toutes les pins visuellement, incluant celles des connecteurs.

En faisant une recherche sur Google groups, d'autres gens ont eu des problèmes semblables avec des Williams,
incluant:
- batteries faibles !  (j'ai peine à croire cela);
- mauvais ribbon cable
- fliptronics board défectueux
- problème sur l'alimentation du display.


Je ne peux pas t'aider d'avantage pour ce problème difficile.
Laisses-nous savoir si tu trouves autre chose.

Bonne chance!
- Sylvain.

merci sylvain. mais la jai toute remis en place pis ca l'air pas pire depuis, cetais peut etre juste un connecteur qui étais lousse ou simplement un hasard et que ca va recommencer plus tard, sinon je chagerai les batterie surtout que cest des batterie de vraiment mauvaise qualité, ou les ribbon cable. merci beaucoup sylvain.