(Topic ID: 4280)

TZ not powering up (LED 2 & 4 not illuminated on Power Driver Board)


By Waldo

8 years ago



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  • 11 posts
  • 3 Pinsiders participating
  • Latest reply 8 years ago by Waldo
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#1 8 years ago

My roommate was playing TZ and he said the free credit loud knocker went off three times then the whole machine powered down (except for a few aftermarker LED's - see below).

When I power it on - all that comes on is are a few of the aftermarket LED light mod's I have installed. I have pulled these off so they aren't the trouble. I have also tested all the fuses and didn't find a bad one.

Also the #2 and #4 LED's on the Power Driver Board are not illuminated.

Anyone have any ideas?

#3 8 years ago

Cliffy,

Thanks for the reply.

Tried all those, they are all good. Did notice when I pulled off F112 that it was a 10A 32V non SB, when the book calls for 7A, SB. Could that have done some damage. Only had this TZ two weeks.

#4 8 years ago

Another data point. When I pull F113 on my other perfectly fine machine (+5V Logic) it behaves exactly the same way as TZ, so the issue has to be something similar.

#6 8 years ago

Well now I did it. Pulled the entire power driver board to swap with wh20 to check and see if I should just send the board out for repair (I'm not handy with a soldering pencil )

The Wh20 board worked in TZ initially when I powered it on but the DMD was now dead. Turned it off waited awhile then turned it back on and nothing. Swapped it back to Wh2o and now that one is dead as well (ie the original problem TZ had now wh20 has with the original wh20 board as well)

Now I'm gonna cry cause both my machines are bustimicated.....and I wanted to play some pinball...

Anyone have any idea what is causing this?

#9 8 years ago

I must have been tired last night. Accidentely put the bad board into WH2O - duh. So the original issue is still the only one I got. Gonna call an expert over since there is still issues even when a good power driver board is in the machine....

Thanks for the replies and I'll keep checking in case someone has more ideas...

#11 8 years ago

Thanks Cliffy,

That experience scared me into calling in backup. A pro is doing just that, but he didn't have the right type of BR so he is bringing it back tomorrow. But sounds like your diagnosis was spot on.

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