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I just bought a new tv. I went to plug in the hdmi coming…

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I just bought a new...
I just bought a new tv. I went to plug in the hdmi coming from the cable box and it started to spark
Submitted: 9 months ago.Category: TV
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Answered in 5 minutes by:
9/26/2017
TV Technician: Shahid, Technician replied 9 months ago
Shahid
Shahid, Technician
Category: TV
Satisfied Customers: 13,320
Experience: I have been repairing electronic gear since 1993 as a qualified Sony tech
Verified

Hi, my name is ***** ***** I will do my best to help you today. To make sure I don’t miss anything, please give me a minute to review your question.

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TV Technician: Shahid, Technician replied 9 months ago

I'm sorry you're having trouble with it, I need more info to troubleshoot the problem.

- Was the same cable working fine with older TV?

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Customer reply replied 9 months ago
There was a short circuit on the line a few days ago.
TV Technician: Shahid, Technician replied 9 months ago

OK, can you try another video source such as DVD/ Bluray player into HDMI input of TV to verify it is still working?

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Customer reply replied 9 months ago
I can plug in my chromecast
TV Technician: Shahid, Technician replied 9 months ago

Thanks for additional info about short circuit on cable line.

It seems cable box has got internal short and causing the spark, if TV HDMI input found good then call your cable company to get the cable box replaced. If TV found bad with Chromecast then I am really sorry about this and you are going to have to return the TV to have it replaced. It will be covered by the warranty if this has not expired, and the replacement will be done at no cost to you.

I hope these info will help. If you have any additional questions, feel free to ask. If you're satisfied, please rate me a 5-star at the top of your page so I can get credit of my work on website.
Thank you

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Customer reply replied 9 months ago
How do I know it's a shortbin the cable box and not something wrong with the house wiring?
TV Technician: Shahid, Technician replied 9 months ago

Its easy, connect any other device to TV that has its own power cord, for example gaming console, DVD player into TV to verify it.

House wiring would be fine because there would be lost of other electric appliances at home connected and getting power from same wiring.

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Customer reply replied 9 months ago
But I've heard that tv's can be very tricky since normal appliances don't care if you hotswap or have incorrect grounding whereas a tv does
TV Technician: Shahid, Technician replied 9 months ago

Let me explain the TV part, it came after leakage test and its power supply board is the one that connects directly to house wiring to get power, rest of circuit boards work on low voltage. It cabinet is made of plastic so no issue of grounding to avoid any electric shock.

If you still think TV is causing the spark then simply return it to get it replaced with another unit and connect it to cable box.

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TV Technician: Shahid, Technician replied 9 months ago

Do you need any further assistance with this question?

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