Haunted House outhole solenoid isn't energizing. Every thing else plays fine when I manually eject the ball. The out hole switch is fine as it ends a game and resets the lower drops when the ball drains.

In fact as long as the ball is on the out hole switch it cycles through the reset process and stops when I remove the ball - so I know it is good.

Coil Ohms are good, grounding the coil activates it.

Tested Q59 it was good. I replaced it anyway. I can activate the coil from Q59 so I know the wiring is good. I also checked the relevant traces to make sure my soldering was good.

I have continuity from Q59 to the MPU board beyond the connector, so I know the connectors and traces are good to right before U6- 6532-3.

I reseated U4 U5 and U6. All legs looked OK.

Still nothing.

Did I miss anything along the way or is it time for a new 6532 or board repair/new board? I don't have a probe and never used one.

This machine has had the connectors re done recently and the grounding work recommended in pinwiki.

Bump

I guess I left that out earlier. No, the out hole does not fire during the test. The knocker does not fire either, need to investigate, but I didn't think those would be related. The others fire as expected.

Kenny - you mean just move the 3 6532s around to see if the behavior moves to something else? You know this is the machine you worked, right? It was great until this!

DR- Probably owned 100 or more, so I guess I've been really luck so far!

Actually Sol 9 doesn't go through Z30 It goes through diode 230 then straight to the U6 6532. I had continuity from the other side of the diode to Q59.
The chip pins are marked PA7/15 in the schematics, I'll try to get a pic.
However there looks to be a +5V input 'south' of that diode? Maybe I've lost that voltage ?

Bottom line in the pic is the outhole #9.

image (resized).jpg

Ah, OK. I thought that oversized diode looked weird in the schematic. And I see the 11 / 10 references for pin numbers.

Thanks.

Swapped 6532 chips and weird behavior followed it. so ordering a new one. Thanks for the advice.

New chip in and it works great again. Thx for the help.