so seems like every game i have is having issues right now...

my nascar is giving me issues was playing a game the other day got into multi ball and locked a ball in the semi lock and then it never fired. also the scanner hole wouldn't fire i checked the fuses and F21 is blown.

I replaced the fuse turned the game on and within seconds it blew the next fuse. i tryd one more and the same outcome.

i replaced the Rom with the latest version thinking this might help (i read some issues with coils sticking and blowing fuses on the original rom) this is a home use only game.

any ideas what could be causing this? doesn't seem like any of the coils are stuck on that i can see. everything seems to be in the resting position.

please help
thanks in advance

Thanks a lot this sounds like a great place to start!

Any idea what connector is the coils on the game?

If you don't know off the top of your head no biggie I'll look it up in the manual

so i checked the fuse again with all coils connectors unplugged and it did not blow then i went through one by one connecting the connectors and no issues no blown fuse finally i had J10 left to connect and when i did the fuse popped!

so looks like J10 is my problem connector. i noticed that the 4th pin on the board itself looks a little tarnished just slightly like the problem happened there.

Also i should say that the coils that aren't working are.

the ball plunger
the semi kicker
all 3 pop bumpers
the scanner hole.

basiclly all the coils from high voltage group1 and group2

except for the left and right flipper they are working fine.

what is my next step?

i looked under the play field and the coils look fine to the naked eye.

Will I have to have a fuse in F21 to measure it? I thought with the fuse blown the coils are getting no power.

bump