Question about JVC AV-48WP74 48" Rear Projection HDTV-Ready Television

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TV VOLTAGE PROBLEM

WHY IS MY JVC TV PUTTING OUT 59 VOLTS AT THE COMPONENTS ON THE BACK OF MY TV?

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  • misikint1958 Feb 27, 2008

    With A DMV,

  • misikint1958 Mar 06, 2008

    AC, Because My DVD Player. And Cable box. Component Wires Had 59 Volts. Thank You. For Your Help!!!!

  • misikint1958 Apr 06, 2008

    Still need to know what parts you are getting this power from, whether it's AC.It AC Suddenlink Or COX.Is The One Did Test On TV.That How I Found Out About It.

  • misikint1958 Apr 06, 2008

    Still need to know what parts you are getting this power from, whether it's AC.Yes.Suddenlink or Cox is the one test TV.

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  • Master
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Are you talking about the connections on the back of the set? And how are you measuring this? AC or DC?

Posted on Feb 19, 2008

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  • Michael Borelli Feb 27, 2008

    Still need to know what parts you are getting this power from, whether it's AC or DC and what reference you are using for ground. Some AC component stray is actually normal depending on your ground reference used. Current leakage should be less than 35 mA for safety's sake.Is the set properly polarized at the AC plug? Oh yeah, what prompted you to whip out meter probes to the back of this set. Do you have an unusual problem with the TV?...accordianman

  • Michael Borelli Mar 07, 2008

    Okay, I'm going to go out on a limb here, and go ahead and just think that you had a technical problem that warranted you checking for stray/incorrect voltages. You didn't say if someone had been shocked or if you had a unit breakdown, so would you be so kind as to not be so flippant when I try to understand what you need. To try to answer you original problem, the basic reason you might have such a reading from any chassis to earth ground (Can I assume this is how it was measured? Very important here!) would be to say that one or more of these conditions exist. Incorrect polarity of AC mains/plug, improper wiring of any extension cord (wiring reversed,etc) incorrect wiring of mains supply at service drop, or actual defect of any of the components' power supply. Once again, there may be a small or residual voltage that exists on some chassis, but the current rating must be as I stated before. Now, one more thing, and I'll wait for your answer. Does this incorrect/ bothersome reading occur on the frames of any of these components, or do you see it at the terminals' hot leads?....accordianman

  • Michael Borelli Apr 06, 2008

    Does everything work as it should, or not?...accordianman

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Sounds like your high voltage section, or your main power supply is shot. DO NOT OPEN THE BACK OF YOUR TV.

The chassis of the TV ( any metal inside the plastic outer shell ) is Electrically HOT ! The High voltage section has upwards of 30,000 ( thirty thousand ) volts running to the picture tube...so DON'T TOUCH ANYTHING.

THe Humming noise is the TV Drawing a lot of current and trying to work. Don't continue to let it try or it will be an even more expensive fix....pull the plug !!

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Best thing you could do is take it to a shop. I have a 32" JVC of the same era and love it. It has given me no problems at all, and even though the price of a new "Tube" TV is extremely low, the picture quality isnt anywhere near as good as your old JVC. Personally, I would at least get an estimate to repair. Good luck....Rob

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