8270 ss chassis help

[racelanes]

I have a chassis thats omega converted and c1-3 removed along with pin lamp traic.

The chassis on 1st ball sweep to guard table runs up and down constantly sweep never moves.
It i run sweep through 66-270 then it will return to 0 on its own and table stops and chassis goes to 2nd ball.

2nd ball runs fine except spot relay [in chassis] never engages to open shuttle and drop table to deck.
table does run.

problem is in chassis not pinspotter or omega board.

any thoughts?

Thanks in advance!

[felix]

Ice Cube Relays

[racelanes]

Thanks They were changed with known good ones and chassis has same problem.

for S & G I also changed both S & T contact assy H relay c1 and c2a plugs and power didoes in heat sink.

no change

What am i missing?

Any one have any thoughts on a possible T1 fault?

Thanks

[Tablejam]

I have a chassis thats omega converted and c1-3 removed along with pin lamp traic.

1.) The chassis on 1st ball sweep to guard table runs up and down constantly sweep never moves.
It i run sweep through 66-270 then it will return to 0 on its own and table stops and chassis goes to 2nd ball.

2.) 2nd ball runs fine except spot relay [in chassis] never engages to open shuttle and drop table to deck.
table does run.

problem is in chassis not pinspotter or omega board.

any thoughts?

Thanks in advance!

For #1 could be a problem with where the sweep and table cam switch wires are in the C2 plug.

For #2, is the little white jumper board missing in the chassis? Without this board the spot relay never energizes.

[racelanes]

Well thanks for all the input guys. It was as I what I thought Bad T1.

Ive been doing this over 25 years at many centers at one time currently I over see 10 but in all this time its only my 2nd bad T1
I have ever had. Mark this one down guys!

Thanks again

[Tablejam]

I've had that one get me before.

[Pin_Head]

yeah and it's a royal P.I.T.A. replacing a bad T1