Brought Big Guns back to life.
However having reset problems.
Appear to be totally random. No rhyme nor reason. Most of the time it just locks down rather than resetting I.e. everything shuts down (including displays), blanking led goes out (though 5v led stays on) and you have to switch it off and on to get it working again.
It has a brand new Rotten Dog MPU board in (original was acid damaged beyond repair).
I have replaced all diodes on flipper coils. I have replaced all capacitors on power supply board. I have replaced BR on power supply board. Reflowed solder on power supply pins on power supply.
Doesn’t appear to be linked to how much is going on on the playfield. Sometimes it shuts down even just launching a ball.
It seems to get worse the longer you play it. I.e. you can play for about 5 mins with no issues. Then you get your first lock up/reset. Then it’s a couple of minutes to next one. Then a minute. Until eventually you’re getting a reset/lock up every game. Switch it off for a few hours, come back, you’re back to it playing fine for about 5 mins then resetting, couple of minutes to next one etc.
From time to time the score displays are going wonky too. Displaying gobbledegook. If I play a 4 player game. All scores are displaying fine then maybe Player one shows fine and two three and four show gobbledegook until Player two comes up then player one and two scores will display correct and when player three comes on players 1 - 3 scores show fine but 4 is still showing gobbledegook and the when player 4 starts playing all 4 displays show correctly.
I am at my wits end. I don’t really want to replace power supply board at £150 - and no one seems to have any in stock - particularly after all the components I’ve replaced on it already related to 5v.
I am wondering - The machine has been stored in a damp environment - though not wet - and the transformer casing is rusted to hell. How likely is it that that’s the culprit - that the AC voltage output from the transformer is unstable? I’ve never had a transformer go wonky on me before and have always been able to resolve Williams reset problems in past using No More Resets for WPC or replacing power supply on a Banzai Run I worked on (another system 11).
However having reset problems.
Appear to be totally random. No rhyme nor reason. Most of the time it just locks down rather than resetting I.e. everything shuts down (including displays), blanking led goes out (though 5v led stays on) and you have to switch it off and on to get it working again.
It has a brand new Rotten Dog MPU board in (original was acid damaged beyond repair).
I have replaced all diodes on flipper coils. I have replaced all capacitors on power supply board. I have replaced BR on power supply board. Reflowed solder on power supply pins on power supply.
Doesn’t appear to be linked to how much is going on on the playfield. Sometimes it shuts down even just launching a ball.
It seems to get worse the longer you play it. I.e. you can play for about 5 mins with no issues. Then you get your first lock up/reset. Then it’s a couple of minutes to next one. Then a minute. Until eventually you’re getting a reset/lock up every game. Switch it off for a few hours, come back, you’re back to it playing fine for about 5 mins then resetting, couple of minutes to next one etc.
From time to time the score displays are going wonky too. Displaying gobbledegook. If I play a 4 player game. All scores are displaying fine then maybe Player one shows fine and two three and four show gobbledegook until Player two comes up then player one and two scores will display correct and when player three comes on players 1 - 3 scores show fine but 4 is still showing gobbledegook and the when player 4 starts playing all 4 displays show correctly.
I am at my wits end. I don’t really want to replace power supply board at £150 - and no one seems to have any in stock - particularly after all the components I’ve replaced on it already related to 5v.
I am wondering - The machine has been stored in a damp environment - though not wet - and the transformer casing is rusted to hell. How likely is it that that’s the culprit - that the AC voltage output from the transformer is unstable? I’ve never had a transformer go wonky on me before and have always been able to resolve Williams reset problems in past using No More Resets for WPC or replacing power supply on a Banzai Run I worked on (another system 11).