Hello all, I've been trying to figure out reset issues that suddenly cropped up on a FT. When measuring TP2 I was showing 5v but at pin 32 on the game rom, I was only getting 4.72v

Following the pinwiki guide it says to check all your molex connections starting with j114. When I pulled off j115, I noticed the topmost pin (brown wire) area was pretty crispy. With that molex unplugged, I turned on the machine and measured a full 5v at both TP2 and the game rom, but of course all my GI is out on the game. I then tried to put the crispy molex back on the machine but the GI wouldnt come back on, no matter what I did and by now the j115 molex was starting to break apart at the crispy end.

Just now I replaced the bad molex with a fresh one but still no GI and none of the J115 pins are showing any voltage readings. I checked all fuses in the game and all is good there. Fuse 115 is showing 12 volts on both sides of the fuse.

Is my next step to pull the board and check the solder joints to those J115 pins? I'm hoping I can check something else before pulling the board out.

Thanks in advance!

No it is j115. My wires don't match what the manual says. Apparently they (williams) originally followed that pic from the manual but then changed it up later on.

The game is sitting at my work so I can't mess with stuff till tomorrow morning. Just to be clear, the game is firing up with no errors but all GI is out and all solenoids and flashers. I'm gonna double check to make sure the ribbon cables are where they need to be and make sure when testing the J115 pins, that I was set to AC (pretty sure I was).

I was testing by holding my negative to the games ground (lower left corner of the backbox where all grounds come together) and putting the positive lead to the pins.

OK, I will check this in the morning tomorrow. I will post back, thanks!

So I got to work this morning and carefully reseated the ribbon cable you mentioned and the game fired right up. First thing I did was measure the 5v at TP2 and pin 32 on the game rom and they both read the same now (4.98)

I know you said that J115 would have nothing to do with my reset problems but before I replaced J115 with a fresh molex, I was losing 3 tenths of a volt at the game rom and now I am not.

I only got to play one full game but it was a long one (dont have lightning flips on this guy). No reset issue yet. I'll post back any findings.

Thanks for the help!