My Gottlieb Magnotron has on the playfiel two top targets one one the left and one on the right. When not lit they score 1000 points as indicated on playfield.
When lit, nothing happen, also i don,t know what they need to be do when lit.
Anyone can help??

Yes switches checked and they work when targets dont lit and give the 1000 point as should be.
Only if targets lit nothing happens, also don,t know what special you get. (No manual)

Did the examinations as per red line. This circuit seems to be ok when jumpering is from playfield target to add replay unit J relais
As soon as the red lights for special go on, the DX activates and stay keeping pulling, on that moment the top target switch does not work any more.
Any other suggestions?
Albert

In the meantime, found the problem in the jones plug connection to backbox. Making contact now and then.
Thanks guys pointing me in the right direction
Albert