My XBOX av cables are shocking me

matt-kuharJune 18, 2010

hi all. this seems a little weird to me. today i unplugged my xbox from the composite connections on my tv to connect my camera. when i disconnected the xbox my finger came in contact with the ground on the xbox av cables and i got a decent shock from them. its probably mild to you guys but to me it hurt like hell. does anyone know what maybe causing this. btw the xbox was OFF when this happened.

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abnorm

Welcome back....

What happened at school.....No pictures ?

Here is a link that might be useful: Your previous post

    Bookmark   June 18, 2010 at 1:21PM
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matt-kuhar

i tried to get the pictures but i was told and i quote " if any pictures of this DANGEROUS electric problem get out of the school we can be fined and possibly closed down" therefore i dont have pictures. Yet...

    Bookmark   June 18, 2010 at 8:55PM
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matt-kuhar

and about the xbox cables. i tried to measure the voltage on the DC and AC settings on my meter and it was not registering any voltage but i touched the cable again and its a continual shock.

    Bookmark   June 18, 2010 at 8:59PM
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brickeyee

"and about the xbox cables. i tried to measure the voltage on the DC and AC settings on my meter and it was not registering any voltage but i touched the cable again and its a continual shock."

What kind of meter?

A digital meter will have an impedance high enough to measure from high impedance sources.

It is most likely capacitive leakage from 60 Hz and has a very high source impedance.
That limits the current and makes it more of an annoyance than a safety issue.

It shows up in switching power supplies if they are not well designed and grounded.

    Bookmark   June 18, 2010 at 9:13PM
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matt-kuhar

yes, it is a digital meter i tried to measure with. and i do know that the XBOX power supply is not grounded because it is provided with a two prong power cord.

    Bookmark   June 19, 2010 at 2:10PM
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brickeyee

If the digital meter cannot measure the voltage the source impedance is many hundreds of mega-ohms (higher then the meters input impedance on the voltage scale).

    Bookmark   June 20, 2010 at 10:59AM
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matt-kuhar

so does that mean it more of a nuisance than a safety hazard?

    Bookmark   June 20, 2010 at 4:05PM
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brickeyee

"so does that mean it more of a nuisance than a safety hazard?"

Yes.

The volt ticks operate the same way.

By having a very high impedance in series they limit the current to a level that is not a hazard.

Without the ability to deliver enough current even a very high voltage source is not a safety hazard.

    Bookmark   June 20, 2010 at 9:06PM
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matt-kuhar

ok thanks for all the help. have a nice day

    Bookmark   June 21, 2010 at 8:29AM
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