I am working on a power issue with my TAF. Here is what I know so far:

J101-1 and J101-2 show 9V AC.

DC testing on BR2 (following http://www.pinwiki.com/wiki/index.php?title=Williams_WPC#The_.22Replace_BR2_and_C5_Mantra.22) shows 11.3v which I believe is an issue. I recently replaced BR2 and BR3 as I was getting random resets in the game and this was the what a local tech suggested.

The tech suggested I also test AC voltage on the BR2 but I've tried a few combinations of testing and get crazy readings (as if it is DC voltage) on the AC test. Do I need to do this or is the wrong DC voltage testing an indication enough of an issue?

The tech suggested that the LM323K is probably the issue but I wanted to see if there was some confirmation.

I already bench tested the BRs and got valid enough readings on all of them. I did not test the large capacitors as I wasn't sure exactly how to test those.

Sorry, should have posted that. On the power board only LEDs on are 1,5 & 6 and they are on solid. Nothing on the CPU

Can you help me out with the 'anode' side? I know the term and I know, for example, BR2 has +/-/~ designations on the board but I'm not sure exactly where to test. Going to look right now.

Ok, I clipped my leads to the banded side of D38 and D3 and got 8.4v. Am I doing that right?

I should have searched Thanks, 50/50 chance!

9.6v on the anode side

TP1 DC ~0v / AC ~0v
TP2 DC 1v / AC .029v
TP3 DC 12v / AC all over the place
TP4 DC 9mv / AC 0v
TP6 (I think, up by C5) DC 70v / AC all over
TP7 DC 21v / AC all over
TP8 DC 17.4v / AC all over

Ok, I think that is al.. TP5 is ground I believe.

Local tech thinks it is the LM323K so I ordered a PSU5 on his recommendation.

I replaced the LM323K with the PSU5 and made no difference. Anyone have any further steps I can test?

Seems like if I am getting the proper AC and DC voltages out of BR2 and I'm not getting 5VAC at TP2 then C2 would be the next suspect since it is between Q1 and TP2, right?

I guess I meant C4.

Why would I have those disconnected? Don't think anyone has mentioned not having those connected.

AH HA... ok, will test!

Ooh boy... that's a bit past my experience just reading it over once but I'll take it downstairs and look at the board while reading and see if it makes sense. I am still a bit basic in my knowledge of board components, schematic, etc.