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Author Topic: WG K7200 cap explosion! Help!  (Read 1503 times)

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Karetaker

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WG K7200 cap explosion! Help!
« on: March 21, 2006, 05:32:34 pm »
I'm working on a Wells Gardner k7200 at the moment. C101 keeps on blowing it's top. The high voltage comes up but sounds a bit strained. All large diodes and resistors test good. I can't keep it going long enough to test the B+. Any ideas?

Thanks
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grantspain

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Re: WG K7200 cap explosion! Help!
« Reply #1 on: March 21, 2006, 05:37:30 pm »
the only time i have seen a cap blow its lid is when its in the wrong way round or the voltage is extremely high
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Karetaker

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Re: WG K7200 cap explosion! Help!
« Reply #2 on: March 21, 2006, 05:48:07 pm »
That was my first thought as well. I'm very careful when putting them in so it would be a rare mistake. The polarity was correct when I pulled it out. I replaced it and it blew up again.
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grantspain

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Re: WG K7200 cap explosion! Help!
« Reply #3 on: March 21, 2006, 05:52:40 pm »
what part of the circuit is it on?
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Q*Bert_OP

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Re: WG K7200 cap explosion! Help!
« Reply #4 on: March 21, 2006, 06:03:31 pm »
voltage rating of the cap you put in?
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Karetaker

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Re: WG K7200 cap explosion! Help!
« Reply #5 on: March 21, 2006, 06:17:20 pm »
160v.... I know the first thought would be that I made a mistake. It was my first thought as well. But, the cap was the correct voltage(160v), microfarads (@100 microfarads), and was put in properly (polarity).
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Karetaker

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Re: WG K7200 cap explosion! Help!
« Reply #6 on: March 23, 2006, 12:59:39 pm »
Anybody????? Anything????
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censei

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Re: WG K7200 cap explosion! Help!
« Reply #7 on: March 23, 2006, 01:27:59 pm »
inspect your chassis and make sure no solder/solder pieces is over lapping/touching in the circuit. Check T103 also for proper voltage.
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Karetaker

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Re: WG K7200 cap explosion! Help!
« Reply #8 on: March 27, 2006, 11:02:06 am »
I don't have a schematic for it. What is T103 supposed to be? It's going to be difficult to get a reading, because this thing blows the top out of the cap in a short time.

Thanks for the input, it's greatly appreciated.
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