I'm relatively new to working on system 11 games and have a Pool Sharks with some flashers that are dim. They trigger, but the filament barely lights up. I tested the resistors on the Aux board, and they are all in spec (~6 or ~11 Ohm, depending on which one). I'd say about 3 of the flasher circuits are dim, while the other ones work just fine. Example: Rt. drops and backbox are fine; left drops and backbox the filament barely lights.

Any pointers would be appreciated!

Thanks -- I'll check both. I did reseat the plugs, but haven't taken out the board to look for cold solder joints.

Sorry -- yes, that is what I meant. For the left drop flashers for which there is one on the PF and one in the backbox, when I unplugged J11 (disconnecting the BB flasher), the PF flasher was at normal brightness. Plugged back in J11, and both were dim. Opposite effect when J12 is unplugged. BB flasher is at normal brightness. Seems like a resistor problem -- I'll double check those values.

Turns out that the interconnect board is from a different game (Earthshaker according to the serial number sticker) with a completely different set of resistors. I was assuming the resistors were correct and basing my tests of them to the values printed on the resistors. So, while the resistors were in spec, nearly all of them are incorrect for the game. Thanks for the help as it got me going down the right path.