Hi

Maybe a fellow Doctor Who owner can relate or guide me

I have an intermittent issue on my DW

Issue:

I lock 1 ball in either R L eject hole

The game will load 1 ball and Auto Launch and then the 3rd ball into shooter lane

I have already replaced all the trough switches and shooter lane switch with new plus all new diodes

Still have the issue

I’ll also me mention that sw 71 the right most opto on MPF is stuck closed right now but per the Sw Matrix have nothing in common anywhere on the grid

Any ideas what to check ?

I was told check the obvious so I did and replaced what seemed to be the most logical but that didn’t fix the issue

Thanks in advance

I enjoy the game but want it properly working

I will check it out

Thank you

Do you feel these are related issues or just 2 separate issues

Hi

No Acid super clean boards

I can check to see if I have a loose connector

What happens is

I lock a ball , next ball loads as it should

But then a 3rd ball is served from the trough

Now if I play and lock the 2nd ball the MPF rises as it should the right right just keeps adding lights as it’s closed

I’ll dig around more

Maybe this Opto in the MPF is the culprit ?

Okay I’ll check the board again but it was super clean

See picture
I installed a remote holder as well to keep board safe

I do thank all for your help

Will also next check out the MPF to figure out that opto - maybe they are linked some way even though different COL / ROW on the Sw Matrix

869B0E37-1DB2-4352-94BE-B2EDD10F4704 (resized).jpeg

Okay

I did literally nothing

Now it’s working kinda properly

The opto issue went away for like 1-3 games and no Credit Dot

Then back again

So I’ll pull that MPF see what’s what

Any pointers to getting to the opto bank ?

Thank you so far for the help

I actually enjoyed playing it without that damn hiccup