Hey all,

Finally getting back into fixing some things, and man it feels good.

About 10 years ago, I left my 4 square playfield out for a few days leaning up against some boxes. Well, clumsy me, I tripped over it, knocked it over, and absolutely mangled a few of the switches on the sequence bank, I mean literally bending them up at 90 degree angles.

I just started working on the game about 2 weeks ago, straightened out the switches as best I could without taking them out, and I'm having an issue in which no matter what "level" of the 4 square I'm on, it also lights up the level 3 line as well. I'm sure it's on sequence bank 3 of the 4 square, but I can't get in there to adjust and straighten out the switches further.

What would the best way be to really get inside there, straighten / clean / adjust those switches? Can I just remove the screws, or is that a little dangerous with the switch stack falling apart?
sequence bank mangled switches (resized).jpg

Thank you for the tips!

I know it seems like an easy task, but I've never had to adjust a sequence bank before. I've collected EMs for about 25 years, so am familiar with taking everything else apart, except sequence banks and player units. So yes, I have a switch adjusting tool, I know about the wing nuts flipping the unit up, and when putting it back down to ensure the bank frame is completely in the slot, etc.

The 3rd row isn't actually stuck "on". If I am on the 1st row, all lights are out at the start of the game. When I roll over one of the rollovers at the top (let's say the 1) it will light the 1 in the 1st row, but also light the one in the 3rd row. This continues until I complete the 1st row, then when it resets for the second row, it also resets the lights in the 3rd row, and it starts all over again. The actual gameplay of the 4 square works fine, it's just the lights in the 3rd horizontal row mirroring what is happening when you are on your 1st row, or 2nd row.

The frame is a little bent also, it's difficult to get the bank back down in it's slot. I'll have a look at the schematic again, but I thought for sure each horizontal row had it's own relay. That's why I was honed in on the 3rd row relay.

I guess another question is, how does everyone actually adjust those switches? Just with the switch adjuster and leaving everything together? Or is there an easy way to remove one entire relay?

-Pat

I'll check that one out, slate-white on the 2s relay. I have the ball count unit apart for a game over issue, once I fix that and get it back installed, I'll take out the playfield and take a look. TY! I guess it would be better, in this case, to only fix what is broken at this point.

The issue has seemed to fix itself. So that tells me, I really need to clean and adjust those switches. lol