Author Topic: Any mandatory repairs for a WPC Driver board?  (Read 458 times)

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Offline MartyJ

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Any mandatory repairs for a WPC Driver board?
« on: October 13, 2009, 08:54:34 PM »
Hi guys,

I am continuing work on my FH and the driver board has had the G.I header pins removed (starting to break down from heat) and I've removed all the big caps.  Most of the caps were starting to swell so I figure they were due to be replaced.

When I did an initial test boot of the game, it booted and then reset.  It did this a couple of times.  From reading Clay's guide it can be a cap or a BR.

Soo - once the G.I pins are back on and a new set of caps installed - is there any other things I should be changing as a matter of course?  There is not a lot of info I could find about what you should rebuild when the board is out?

Should I change out the BR's as well or do further testing first?

I was planning on installing it into my HS2 to test (I guess this should be OK?)

Offline Strangeways

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Re: Any mandatory repairs for a WPC Driver board?
« Reply #1 on: October 13, 2009, 09:22:44 PM »

Marty -I replace ALL the large Capacitors and BRs. You can source them from PSP or RTBB.

GI - Check the pins and connectors - I hate IDC GI connectors - not designed for high current use.
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Offline MartyJ

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Re: Any mandatory repairs for a WPC Driver board?
« Reply #2 on: October 13, 2009, 09:29:10 PM »
Thanks Nino...I will be replacing the IDC G.I as well.....

Good to know I was on the right track...Unfortunately PSP is out of both types of BR and RTBB is closed whilst Greg is working very hard at Pinball Expo!

Can these be sourced anywhere else?

It looks like only 1 transistor has ever been replaced.  It is socketed!  Weirdest thing I've ever seen.  The socket is a white plastic one!  I will post a photo when I can!

Offline slammer

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Re: Any mandatory repairs for a WPC Driver board?
« Reply #3 on: October 13, 2009, 09:57:42 PM »
Marty,

If you stuck for BR and caps, try Gunnar at Coin Play in Wheelers Hill.

He should have them in stock

Cheers Angelo


Offline MartyJ

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Re: Any mandatory repairs for a WPC Driver board?
« Reply #4 on: October 14, 2009, 11:14:47 AM »
Thanks Angelo,

No super rush...I did check on Sunday and both BR's were out on PSP....Some back in stock now but I've sent an order through to GPE...I ordered 10 as they were at a super good price!

Offline johnwartjr

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Re: Any mandatory repairs for a WPC Driver board?
« Reply #5 on: October 14, 2009, 04:27:04 PM »
Does your transistor socket look like this?



Personally, before I ever put the iron to the board, I check fuse values and then put a meter across the various test points and look for any erroneous voltages.


Offline MartyJ

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Re: Any mandatory repairs for a WPC Driver board?
« Reply #6 on: October 14, 2009, 04:31:41 PM »
Yes it did!

Offline Pinball Fixers

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Re: Any mandatory repairs for a WPC Driver board?
« Reply #7 on: October 14, 2009, 07:14:44 PM »
Does your transistor socket look like this?



Personally, before I ever put the iron to the board, I check fuse values and then put a meter across the various test points and look for any erroneous voltages.


That's gotta be one of the best hacks I've seen in a long time !*!

Offline MartyJ

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Re: Any mandatory repairs for a WPC Driver board?
« Reply #8 on: October 14, 2009, 07:18:19 PM »
Mine was exactly the same Owen!  NFI why?  Unless your expecting to kill a TIP102 again?

I forgot to mention John, prior to powering all fuses were checked (rating and health)....After the inital reboot there was no 5v on the TP...

Offline beaky

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Re: Any mandatory repairs for a WPC Driver board?
« Reply #9 on: October 14, 2009, 11:24:23 PM »
Does your transistor socket look like this?



Personally, before I ever put the iron to the board, I check fuse values and then put a meter across the various test points and look for any erroneous voltages.


That's gotta be one of the best hacks I've seen in a long time !*!
My god man! what was this person thinking?
a socket on a transistor !@#
Just asking for trouble in my opinion
I can see how they came up with the idea.
there are transistor sockets available for TOP3 style transistors but the transistor is held in place with screws.
also years ago there where sockets available for some low current type transistors.
whats next? lets put sockets on our diodes and standard resistors.

you would be lucky if the current rating on that socket would be 1 amp, and how many amps does the device that transistor controls use?
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