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Offline Peach

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Fuse help?
« on: January 09, 2009, 08:07:52 PM »
Hi Guys,I need some help please,the lights on the playfield of my SO just went out and I have found a blown fuse but can`t for the life of me find out how many amps it is,I know it is 6 volts,because that`s on the sticker under it but not the amps,does anyone have any idea what it would be please.
Cheers Peach  %$%
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Offline Retropin

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Re: Fuse help?
« Reply #1 on: January 09, 2009, 08:12:06 PM »
Hi Peach,

I THINK its a 10A
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Offline Peach

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Re: Fuse help?
« Reply #2 on: January 09, 2009, 08:21:27 PM »
Thankyou  %$%
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Offline Peach

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Re: Fuse help?
« Reply #3 on: January 10, 2009, 07:11:51 PM »
More help please.I replaced the fuse but it keeps blowing,where would I need to look for the problem.
Cheers Peach  %$%
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Offline jyebow

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Re: Fuse help?
« Reply #4 on: January 10, 2009, 11:35:57 PM »
If the fuse thats blowing is on the light circuit it could be a shorted globe socket. I haven't had to fix one yet but have read they are a pain to track down. ther may even be a post on here about that !@# . worth a search.
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Offline Peach

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Re: Fuse help?
« Reply #5 on: January 11, 2009, 12:11:33 AM »
 !)# I changed a few bulbs yesterday so maybe that`s where the problem is.Will have a look,thanks.
Cheers Peach  %$%
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Offline Peach

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Re: Fuse help?
« Reply #6 on: January 11, 2009, 02:30:25 PM »
Ok Guys,Need some more help please,I have checked all the bulb holders,straightened a few, and still blowing the fuse for the playfield lights,where do I look next,any help will be appreciated.
Cheers Peach  %$%
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Marty Machine

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Re: Fuse help?
« Reply #7 on: January 11, 2009, 04:05:31 PM »
Is the fuse REALLY meant to be 10amp? maybe it's a 15A or 20A? (My stellar wars uses a 20A for the GI lamps).

Also, i know this is a pain, but remove ALL the GI lamps out of their sockets and replace the 10A fuse, does it still blow?

If it blows, then it proves a socket is shorted,
If it doesn't blow, then you proved a lamp is dodgy.

Replace the lamps back into their sockets one-at-a-time until the fuse blows again, then you've found the dodgy lamp.
(this is easier than measuring each lamp individually, trying to compare all the filament resistances, trying to establish what value is good or not).

Good Luck,
MM.
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Offline Peach

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Re: Fuse help?
« Reply #8 on: January 11, 2009, 04:32:15 PM »
The fuse is actually 15 amp,I found it on the electrical plan thingy,do I just take out the bulbs under the playfield or on top as well,thanks for the help.
Cheers Peach  %$%
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Marty Machine

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Re: Fuse help?
« Reply #9 on: January 11, 2009, 04:41:31 PM »
Yep, remove ALL the GI lamps, whether they're under/ontop of the playfield, and also the ones in the backbox.

Does your GI wiring go via a few connectors? maybe you can unplug the backbox and playfirld GI lamps to help isolate where the short is.

MM.
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Offline Peach

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Re: Fuse help?
« Reply #10 on: January 11, 2009, 04:45:33 PM »
No worries thanks for that,I think I can unplug the backbox.
Cheers Peach  %$%
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Offline illawarra_steelers

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Re: Fuse help?
« Reply #11 on: January 11, 2009, 06:09:36 PM »
To make sure it's on your playfield - unplug the jones plugs from the playfield to the game, there are 2 of them (make sure the power is off).

Replace the 10A fuse (I'm sure it is 10A for lights on a Williams pin) and if the fuse doesn't blow with the playfield unplugged you know the short is on it.

You will need to take your time and really feel your pain...I still have this problem on my World Fair and have just given up for now!

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Offline Peach

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Re: Fuse help?
« Reply #12 on: January 11, 2009, 06:17:25 PM »
Which is the jones plug,are they the ones under where the backbox is that you push on to the pins.
Cheers Peach  %$%
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Offline illawarra_steelers

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Re: Fuse help?
« Reply #13 on: January 11, 2009, 06:23:45 PM »
That is them....the plugs with the wires that join the head to the actaul game
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Offline Peach

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Re: Fuse help?
« Reply #14 on: January 12, 2009, 12:35:40 AM »
After a day of taking bulbs  out and putting them back in and a dozen blown fuses . I found the problem to be a contact stuck on one of the bumpers  ,what a pain,anyway I just wanted to say thanks to everyone who offered advice.  $#$
Cheers Peach  %$%
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