WILLIAMS FIREPOWER

[lenoz]

Put the multimeter on this and nothing (red pin on left side & black on right side)

[Steevsee]

Keep the black lead on the battery ground and try the red lead on each side of the diode.

[lenoz]

OK, Ive put a better multimeter on everything & Iam getting 4+ volts on all things now (D17, C5101 & battery pack + connections to CPU board) - now Iam really lost ???

[lenoz]

With the diode I got 4.47v on one side & 4.23v on the other if thats any help ?

[Steevsee]

Most likely your 5101 chip has died or has some corrosion under the socket. 

Easiest thing to try next is probably to swap out the this chip.

I think Ken (Skybeaux) had some available for sale, if you don't have a spare on hand.
You can PM him here http://aussiepinball.com/index.php?action=profile;u=162

Edit.  Might be worth trying the On/Off trick again now that you have confirmed all battery voltages are present and correct.  Just make sure you have the coin door open when you try it.

[lenoz]

Steevsee, thankyou so much for your time & help and all the others that have tried to help me troubleshoot this problem, when i get the 5101 chip I will update this post as to how i go, thankyou all.

[lenoz]

Hi all, have tried changing out the 5150 chip and still no joy (tried 2 of them) - any other ides would be greatly appreciated, thankyou.

[deadlydave]

So with the new 5105 chip, you have cycled power with coin door open? What happens now?

[lenoz]

Nothing Dave, still just comes back on with test mode 4.

[deadlydave]

Can you get into the input test mode and confirm you have three balls registered?

[lenoz]

No sure how to do this ?

[Steevsee]

Hi all, have tried changing out the 5150 chip and still no joy (tried 2 of them) - any other ides would be greatly appreciated, thankyou.

The socket itself might be bad.  You can test it with your DMM on continuity/resistance setting.

Follow the traces from each socket pad to a nearby pad on the baord and see if they have continuity.

Edit - Any chance you could post a picture of the socket with no chip inserted ?

[Skybeaux]

Glad the chips arrived safely Lenoz.
I tested all of them before i sent them to make sure they were good , so you must have some other problem with the board.
As Steevsee said ,make sure that the 5101's socket is good , if in doubt put in one of the new ones i sent you.
I had a problem with a board once before like this and it was either  IC27 (4071) or IC24 (7400) that was the problem...can't remember exactly as it was a while ago , and i wouldn't say for sure that changing them will fix your problem , yours might be something different.

[lenoz]

Thanks Skybeaux, any chance you can sell me these chips as I would rather try changing these out first then trying to find someone here kalgoorlie to change socket out (I presume its soldered)

[goodolddays]

Sorry to hear you are still having probs .
My Firepower has recently died with the dreaded audit mode too.
Ken sent me a 5101 not long ago plus a couple of other components .
When I get time I will try sorting mine out and post back here with what fixed it (optimistic aren't I  ) .
Hopefully you will get yours sorted before then . As you have seen, plenty of help on this forum