Last Action Hero Weirdness

[Matt Adams]

Ok, here's a strange one. There are 4 bulbs over the 2 scoops in the centre of the playfield. The 2 on the right are fine. The 2 on the left work in attract mode and in modes like find Benedict but the yellow one never lights when it should when a mode is lit.

What would stop this bulb from lighting when the mode is supposed to be lit but work at all other times?

Any help gratefully received

 

[Moonraker]

I'd say crud on a ribbon cable connection or hair line solder crack on connector pin...

 

[strobey]

What would stop this bulb from lighting when the mode is supposed to be lit but work at all other times?

Data East software...... [emoji6]

 

[Moonraker]

Data East software...... [emoji6]

Funny enough I was going to say that originally...

 

[Matt Adams]

So what cable should I look at Peter? It just seems strange it lights at other times regularly.

 

[Moonraker]

I think it's worth doing each end of both of the ribbon cables and perhaps the right hand side connectors on the bottom of the MPU board.
http://www.ipdb.org/showpic.pl?id=1416&picno=26289

 

[Matt Adams]

Thanks, I will do that tonight and report back

 

[andy]

What would stop this bulb from lighting when the mode is supposed to be lit but work at all other times?

Just wondering if it could be a short on another lamp that's actually lighting it in attract mode.....if you go to single lamp test and try it there does it light ok?

 

[Sgt GrizZ]

The bulbs hate you @Matt Adams ....I heard them talking about you

 

[Matt Adams]

You're not wrong, they are in league with the switches against me

Ok, so it looks like it is a fault on the board. I reflowed the connecters on the bottom right corner and also put new molex's on them with no change but if you flex the board/connectors it makes lights go on and off on the playfield so there is something amiss. I will swap it out with another DE board in one of my fully working games and see if it changes it.