I just picked up my first WORKING Gotttleib system 80! it has a glitch though that I need some help with please.

the "ROBOWAR" inserts and the bonus X inserts flash almost constantly in the game. Ive watched several videos and even played another robowar to verify that there is an issue...

at the start of a game, the inserts in question flash, and are supposed to stop flashing once one of the letter rollover switches at the top of the play field is activated, then the letter that is rolled over is supposed to be lit on the "ROBOWAR" inserts in the middle of the play field.

but... what happens is the "ROBOWAR, and Bonus multiplier INSERTS" just stay flashing.

when I lock a ball for multi ball a̶n̶d̶ ̶w̶h̶e̶n̶ ̶i̶n̶ ̶m̶u̶l̶t̶i̶ ̶b̶a̶l̶l̶, the flashing stops and correct logic on the insert lights commences. When multi ball is in effect and when a ball drains, and multi ball is over, the flashing starts up again, and the logic is incorrect.

I pulled the aux lamp driver board out (the one that is below the play field (MA-866)) and out of curiosity I turned the game on and played a ball and locked a ball and played multi ball, and everything acted the exact same as before, which to me is strange, I thought that the aux lamp board was supposed to drive the insert lamps on the center of the PF.

the connectors are on there super tight, but I will repin them anyways with trifurcon pins

does anyone know where else I should start?

update: the small lampboard below the playfield controls the small ship inserts, and has nothing to do with the inserts in question.

The grounds are done... I'll check the transistors... thank you!

I'll check the shooter lane switch, it makes no discernible noise when the ball leaves the shooter lane, so there may be something there, thank you!

I checked the shooter lane switch, it was closed all the time, I fixed it so the switch is not shorted when there is no ball sitting on it.

The transistors on the driver board were tight

I replaced the battery with a memory capacitor

All the ground mods are done except the displays

The correct music plays afaik.

Problem persists

Thank you for the video, that helps immensely!

I'll check switch test again and looking into the driver board...

FINALLY! This only took a week , hehe,

I really appreciate you guys help.

The switch (36) in the shooter lane was put together incorrectly which resulted in a short, so I adjusted everything as it is supposed to be and now all is well with the freaking out inserts.

I cleaned the game and waxed the pf, fixed some incorrect rubber,shooter spring, and a few other issues and about to do a few lighting mods to make the crowds cheer. She is one beautiful, amazing sounding and fun game!

Thank you guys!