SEEKING ADVICE -- The Right Popper that pops ball out after hitting the Sniper Tower suddenly stopped working when I installed a replacement opto board for the planet interrupter ring (I've been dealing with other issues to get the Deadworld mod & crane fully operational). I'm guessing something came loose or broke when I raised and lowered the playfield. Now, when a ball enters the Sniper Tower it gets stuck below the playfield and doesn't pop out, effectively killing the play. I've done a little tinkering but am stuck and cannot find a replacement assy (part A-15769) on line. I'm seeking advice before trying anything more radical. Here's what I know:
* The opto seems operational, as when I run Test Mode, it clearly switches on to off when I pass something into the Sniper Tower and through the sensor path just above the right popper
* When I pass something through the opto of the left popper (subway exit), the opto also is operational, and there is a voltage spike measured when I place multimeter leads at the two wire junctions (where the wires attach to the assembly) of the popper assembly when the opto is activated.
* However, there is NO voltage spike measured on the right popper assembly wire junctions when I place leads on them and activate the opto.
* When I run the switch test, the globe twitches when the left popper switch is tested. The globe does nothing (no response) when the right popper switch is tested -- there is zero response seen on the playfield.
* A previous owner soldered one of the right popper wire junctions -- the job appears to be intact, but there is a blob of solder masking the actual connection.
Please pass along any advice you may have to further diagnose -- the pin is pretty much un-playable (and certainly un-fun) without a functioning Sniper Tower. If you have a replacement A-15769, I might be interested in that too.