This is great info - tks very much...
Will go and test it out again. Do I press the test button 16 times to get to #16? Will also try the the jumper suggestion. The wires seem a little bit worse for wear so I may resolder them to make sure that all is OK once I have finished testing.
Yes, this is a great machine and plays very well. My one is in very good condition - backboard and table have very little wear. Looks like it has been regularly maintained. I need a rubber set ... any suggestion for a reliable place to get these? Also, what price do they fetch these days?
If the game continually resets the target and is stuck on ball 1, then the ball trough switch might be shorted or mis adjusted. Remove the ball and see if the problem persists.
I just went in and tried this on my own CP and can confirm that this IS how the game will behave if the ball is not being kicked into the shooter lane ( i held the coil plunger so the ball wouldn't kick out, so the ball was just sitting there on the switch). Also just checked the solenoid test, #16 in the solenoid test is the outhole coil and Q16 on the solenoid driver board drives that coil. You could try, with a test lead jumpering its collector (metal tab) to the aluminium ground in the backbox and see if the ball kicks out, if it does it'll rule out the coil itsself and connections between the board and coil as being the problem.
Slightly off topic but i wanted to add, its a great old game when working properly, i also find it pretty amazing that for a low production game there seem to be a few popping up lately.. i notice there are a few members here that have this title.. i have TWO of them @ the moment 
a keeper and the other is being restored and sold.
