Diner Insert light flashing on flipper press.

[Andypc]

I just noticed the green 10x insert is flashing when I press the flipper buttons. Any Ideas what the issue might be. Would changing it to an incandescent bulb solve it or is there an issue that needs to be fixed?
It should be off at the times it lighting up with the flipper press. It lights up correctly when it should be on.

 

[David_Vi]

I'd try it with an incandescent just to rule out ghosting. But it would be odd that ghosting would happen suddenly after its been fine previously.

Do you have a multimeter?
If so you could test the diode

@MajesticPinball any ideas?

 

[DRD]

Some system 11s had capacitors on the flipper button switches and also on the flipper mech switches.

These were to deal with sparks/ surges/ back emf

Are they all there? Might be worth replacing them to see if that helps

 

[Andypc]

@David_Vi came round and had a few games on my Diner and he noticed it wasn't just the Green 10x insert is flashing every time the flipper were activated, it was also the Cup Flashers. After having a look under the playfield I realised the Green 10x insert has both a normal insert bulb and a flasher bulb. It was the flasher bulb that was flashing with the flipper activation. So essentially the three cup flashers were flashing every time the flippers activated.

I changed the flasher bulb under the Green 10x insert from an LED to an incandescent flasher bulb and it seems to have solved the problem. The cup flashers are still LED's but are no longer flash with the flipper activation. Should I consider this solved and just a quirk of using LED's or is there anything I need to fix?

Also while testing I noticed my ROM version is shown as Domestic Proto 0 ID 01 11/28/89. IPBD shows the production run as June 1990?

 

[David_Vi]

That's really weird. I might try replicate it on our Diner (when possible ).
I have found in the past you can touch an led flasher and it'll illumnate slightly.

I wonder if it's similar to that.
Next time you have the pf up try putting an led flasher back but see how loose it is in the holder. Maybe it's the lamp holders and they need a grip with pliers to tighten them.

Paul or Jim/mypinballs can burn the latest ROM for you. But I'll be sad my 15mil will be erased

 

[CHRIS B PINBALLS]

It’s not at all uncommon to see flashers trigger on system 11 games when the flipper are activated I have had it a few times I have never taken the time to investigate further and just reverted back to 906 bulbs as I don’t think led flashers add much if anything to older games