Recent content by bungy

Thanks for this idea! If I turn it off for a minute then back on, the problem is not there.

Yeah, and andrewb said if they test fine, they're probably fine and not to replace too many components. I only replaced them because they were NTEs.

We get signal, main screen turn on! I replaced the D608 diode, the 2 Y-axis bottlecap transistors, and the fuse. Tested it, no spot killer, and it was trying to come up, but wouldn't. So I replaced the MPS-UXX transistors in the Y axis, and it came up. Since they all were NTEs and I had...

No visibly brown/charred resistors. Ok to skip testing them all? All TO-92 test good out-of-circuit. Testing them again in-circuit, they still seem fine... the extra false positive in the other direction makes me uneasy. UXX test fine out-of-circuit, I know they can still be bad under load...

The UXX transistors tested fine off the board, but I'll take your word for it. I'll replace the TO-92s too, even though they tested fine - I think I even have them on hand. Sounds like the discipline is to just replace everything, shotgunning is my style anyway.

Bingo, it's dead. I'll do my due diligence and check all the resistors when I get a chance.

I tested all the transistors in the Y circuit, and they were all good.

Looks like the next step is to test all diodes and resistors in the Y circuit. I'll double check the game board outputs and dig deeper into the 6100 guide.

The short description is: F600 is blown and the 2 Y-circuit frame transistors are bad. I've read that bad frame transistors can be a symptom of some other problem. If I just replace all the components, are they probably just going to blow again? Is there some further investigation/testing I...

Maybe we'll get to see Pitfall IV.

RIP :(

RIP :( I'm not really a pinhead, but whenever I need pinball parts, I automatically think, "Marco Specialties".

I have one and it's too many!

Man that was a crazy episode of Salute Your Shorts.

Oh man, I am so sad. Ken was an absolute legend.