Re: TECH: WWF blowing fuse F5 and Cap C8...
- From: "John P. Dayhuff" <pinhead67@xxxxxxxxxxxxx>
- Date: Thu, 06 Oct 2005 02:40:54 GMT
Yeah Ron, i see what you mean now. I did 'nt have that schematic in front
on me and the first thing i thought of was a bad BR. Thanks for the help,
i'll get over to petes soon and we'll get this figured out. There's really
not much in that circut, but i'm assuming its directly on the board.
Thanks again,
--
John P. Dayhuff
Battle Creek, MI.
(269) 979-3836
Still looking for:
E.M. Charlie Angels pinball machine,$100 finders fee.....
E.M. Mata Hari Backglass.....FOUND!!!
"RonKZ650" <RonKZ650@xxxxxxx> wrote in message
news:1128565419.557920.264750@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> If it's same as a Jurassic park setup the cap is 150uf 100v. This means
> you either somehow got reverse voltage or significantly higher than
> 100v somehow fed into it to cause it to explode which either seems
> relatively impossible to have happen out of the clear blue sky. Another
> possibility is simply a bad capacitor which can rarely fail in this
> way, but does happen. I'd replace the fuse and cap, put my meter across
> the capacitor set on DC volts, 500v scale, set the meter to read
> min/max/ave, turn the game on for a second, turn it off and read the
> meter to make sure the max reading is not running wild and ensure there
> is no negative voltage being fed to the cap. If readings seem normal,
> 34v according to the manual, but I believe this is solenoid voltage so
> would more realistically be somewhere around 70vdc. This is where a
> good meter comes in handy that has these features, you can turn the
> game on then off quickly and read your meter at your leisure to
> interpret what it read before additional parts are burned up in the
> game. Shorted AC rectifiers, diodes, bridges ect cannot cause a
> capacitor to explode, blow fuse=yes, cap burn=no.
> pmwolf wrote:
> > Just got a Data East WWF Royal Rumble...
> >
> > It worked when I got it, and worked when I got it home.
> >
> > The next day, I'm playing a game, and the bumpers and slings go dead.
> > Something doesn't smell right, either.
> >
> > The fuse at F5 is blown. I assume the "hot smell" is from a GI connector
> > someplace (it isn't).
> >
> > I replace the fuse at F5, and turn the game back on. The fuse
immediately
> > blows, and smoke pours out of the capacitor at C8...I'm assuming that
this
> > is not supposed to happen.
> >
> > I checked the marvin3m site, and googled for answers, but I can't find
> > anything. I was going to pull out the power board on my DE: Batman, or
my
> > DE: Star Wars...but apparently I can't, because they aren't compatible
> > (thanks, marvin3m!!)
> >
> > Suggestions? What is the likely culprit? I don't want to replace the cap
if
> > it'll just keep happening because of a problem with something else....
> >
> > Thanks!
> > Pete
>
.
- References:
- TECH: WWF blowing fuse F5 and Cap C8...
- From: pmwolf
- Re: TECH: WWF blowing fuse F5 and Cap C8...
- From: RonKZ650
- TECH: WWF blowing fuse F5 and Cap C8...
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