Hello all
I have just got my RB operational after getting my boards serviced and have no idea where Nell is supposed to sit when the machine finishes.Nell has been non operational since I got the pin and now with my boards serviced I dont know what Nell actually does and where she sits normally with power off or end of game. I get a little movement in the coil test . Dont know if my motor is good or bad.
One other thing wrong is the bottom pop does not work. Switch test is ok but it does not fire in coil test.It does have a gottleib 49-83 coil in it not a 090-5001-00 could this be the problem?
Thanks

Hello all.My screen goes blank during game play for a few seconds then returns.Sometimes a couple of seconds and sometimes 10 seconds or until the ball drains. I have just had all my boards serviced. Has anyone else had this problem? Thanks Scott.

Thanks for the responses. I will try all the re seating mentioned and maybe look at new ribbon cable first. I am not sure about the re flowing the solder.I sent all boards (not the screen)away for a birthday as the machine was re setting after I purchased it.The guy has test rigs and it worked when I re installed them though I did not notice the screen problem until I was watching someone else play.

I will pass on the screen but thanks for the offer.Great idea though.I dont think I would be very popular at home if I got a new screen just now.
Thanks again
Scott.

Hello, I have the center pop bumper very weak. It will not operate when playing.
In test mode it will move slightly and if I move the coil plunger down a little bit it will activate weakly.The switch registers.
I have changed the coil and plunger and it is no different.I have swung the left coil over to the center while still wired to left side to check the action and the action of the pop is OK.
I have voltage on both lugs. Is the next step testing components on the board?
Any help greatly appreciated as I have pulled it apart many times.
Thanks

Hey thanks Clempo I will give this a go. Cheers Scott.

I have taken off the connector and bridged header pin 3 to connector pin 4 and coil tested right pop and center pop works.I guess its time to take the board off.
Thanks Clempo I would not of thought to do that. Any thoughts on the next step?
Cheers mate.

Hi finally got back to it. I have bridged center pop header to another pop to prove it was that was that pin and it did not operate the other pop. I have the board out and both transistors seem to test ok. Can transistors test OK but not be OK? or is it further down the rabbit hole? Any suggestions.Thanks.

Continuity between header pin and transistor is OK. The coil tries to work but is really weak. I dont know how to do the resistance test in the resistance array. Is there a link for that test? Thanks.

Thanks Clempo. I have tested that transistor to a known good coil and it is also weak and the center pop works fine when driven by another transistor so I will take your advise and change the big transistor and see how that works.The "bad" transistor tested the same as the adjacent ones .I need to order some and find a board guy in my town as I dont want to damage my board with my "agricultural" soldering.I have viewed the link and will have a go at that also. Thanks alot for all your help and will keep you posted.Cheers Scott.

Update- Had some transistors sent to me and then went to local electronics/computer shop and had them change Tip102 and the smaller transistor and I now have a working pop bumper.Interestingly the guy at the electronics shop said both transistors tested OK.Thanks again for your help.Now to fix Nell.