Arcade Collecting > Pinball
Dirty Harry Williams 1995
Ken Layton:
Suggest starting with the repair guides here first:
http://www.pinwiki.com/wiki/index.php?title=Williams_WPC
Battery leakage damage repair on the WPC cpu boards is very tricky. The foil traces are very tiny and fragile. Quite frequently there will be foil eaten away underneath one or more chips below the battery holder on the parts side of the board. Sometimes it can eat away traces under some of the resistors and capacitors in that area too. These repairs often require soldering jumper wires on the back side of the board. Be prepared to take several hours worth of time time repair one of these boards and use high quality desoldering equipment to avoid creating more work for yourself.
In my opinion, it's just not worth repairing these boards. Nowadays I will only repair one of these boards if the damage is very minor. I have so many other machines to service that I can't ---fudgesicle--- around all day trying to repair the board. It's better to buy an aftermarket reproduction cpu board.
ChadTower:
--- Quote from: smartbomb2084 on January 24, 2013, 08:22:33 am ---Dude, the OP knows squat about pinball and probably has ZERO soldering skills...and you want him to start delsoldering corroded parts from a CPU board, put in new ones, and check traces to see if they work?
Give us a break.. willya? :dizzy:
--- End quote ---
That's why I called it an opportunity for someone who isn't in a hurry. It's his decision - make it a long term learning project or get the game fixed quickly.
And it turns out he can solder. That's the big first step here.
charliepr, post a pic of the damaged area, and we'll all have a better idea of what we're dealing with.
Ken's advice is sound from an operational standpoint.
charliepr:
--- Quote from: Ken Layton on January 24, 2013, 11:47:21 am ---Suggest starting with the repair guides here first:
http://www.pinwiki.com/wiki/index.php?title=Williams_WPC
Battery leakage damage repair on the WPC cpu boards is very tricky. The foil traces are very tiny and fragile. Quite frequently there will be foil eaten away underneath one or more chips below the battery holder on the parts side of the board. Sometimes it can eat away traces under some of the resistors and capacitors in that area too. These repairs often require soldering jumper wires on the back side of the board. Be prepared to take several hours worth of time time repair one of these boards and use high quality desoldering equipment to avoid creating more work for yourself.
In my opinion, it's just not worth repairing these boards. Nowadays I will only repair one of these boards if the damage is very minor. I have so many other machines to service that I can't ---fudgesicle--- around all day trying to repair the board. It's better to buy an aftermarket reproduction cpu board.
Where can I find an aftermarket cpu board? economical, ;D
--- End quote ---
charliepr:
Heres a link to the pics. I couldn't upload them here.
--- Code: ---http://postimage.org/gallery/1kjrpjzg/2a9ac9ad/
--- End code ---
ChadTower:
Cool. I can't see that from where I am right now. I'll have a look tomorrow.
At this forum there is a thread in Project Announcements where people attach their pics. Then we use the url from that hosted image and put it in line with our posts elsewhere. It works well.
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