I just had random restarts on my TAF which likely ended up being a combination of some trace issues on the board and possibly ground issues with the LM323K.

The TOM is different.. it now resets itself almost immediately after starting a game and will continue to do so now (it started off much less) almost every game. I was wondering, while I am going to follow the pinwiki guide, if there was anything that this might indicate more than the other. I'll be testing 5v power this afternoon and BR2, those are two off the top of my head.

Probably original. I was under the impression these were sort of "last resort" with how hard it is to remove them cleanly leaving the through hole.

I'll test that out. The board has been in and out of the game to solve some backbox GI issues. Connector J101 I think (left side, bottom of the board) was burnt up as well as J120 or J121. Replaced those and their headers. So plugs have been in and out but I'll reseat them all.

Is there anything but a $300 Hakko that works for this?

Cool, thanks

I speak from experience too I just replaced C5 and the LM323K on my TAF board. Luckily I was borrowing a Hakko desoldering gun and had an experienced board tech with me to help. The cap was *hairy* to replace. Sadly, don't have those tools now so looking at getting my own and considering what to replace. Going to reseat those connectors with my fingers crossed.

Long story, but I ended up getting the PSU5 and finding out that it wasn't the issue (so swapped back in the LM323K). Had some trace issues on the board that was preventing the LM323K from grounding.. among other issues.

Reseated and same issue. J101 has some brown burn on the 9v side so it looks like that is due for replacement. I already replaced J114. The board was TOAST there and had to put in a stitch and replace the header. Been working fine for a while like that, so I think that repair is fine.

I have the PSU5 still but no caps. Should I look at replacing the LM323K?

Thoughts on this kind of junk? Worth it for very part time work?

https://www.aliexpress.com/item/Pro-sKit-SS-331H-ESD-LCD-Digital-BGA-Desoldering-Suction-Electric-Absorb-Gun-Electric-Vacuum-Desoldering/32925755888.html?spm=2114.search0302.3.135.50be5530ZkaVS4&ws_ab_test=searchweb0_0,searchweb201602_0_10130_431_453_454_433_10618_536_10890_317_537_319_10059_10696_10084_100031_10083_10547_10546_10887_10307_321_10548_322_10065_10068_10103_10884_10545,searchweb201603_0,ppcSwitch_0&algo_pvid=b4529589-3b4a-4594-88d4-ba4c984efcf2&algo_expid=b4529589-3b4a-4594-88d4-ba4c984efcf2-16

Thanks, haven't measured voltage yet. I will check 5v and am placing an order from great plains for some more connectors.

$260 + ... other tip... drill bit... stand..

That's the one I've used... it's realllllly nice.

So all of the test points on the driver board are good except the 5v (surprise), reading 4.86 which I am going to guess is really darn close to whatever limit the system needs. I also noticed C5 was domed a bit, so based on what I've heard the LM323K doesn't really go bad much, suspect the C5 first?

I'd say the damage is minimal... really more the yellow/brown on the outside/end of the connector itself but the pins look fine. But I'll replace it first since it sounds like it needs to be replaced either way.

Thanks PinballManiac40 going to get my order placed at Great Plains

Are there test points on the CPU? Not sure I can see what you're testing in the image there.

Thanks, I'll test it out

Aside from C2 and C5 (and the LM323K, which I have a PSU5 already for) is there anything else I should order while I'm ordering those parts (and some headers/plugs)? I have some BR2 in my cart as well, already replaced them on my TAF and figure it might be needed here.

HA, I didn't even see that before. I ordered 20 to be safe.

Sadly... I have a bunch of individual LEDs from various projects, mostly failed

4.82v across C31