Question about JVC HX-D7 DVD Compact Stereo Audio / Video System with 5 DVD Changer Shelf System

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I Got A JVC HX-D7 From My Uncle And I Went To Go Turn It On And It flashes PROTECT a few times and shuts off. What do i do??

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Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.

Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.

Posted on May 22, 2011

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1 Answer

I turn on my JVC HX-D7 and will stay on momentarily. Then it goes into 'Protect' mode and will shut off.


It sounds like you have a short. Check that your speaker wires are not crossed at any point. If no look into the connections and see if some wire has broken off into one and caused a short.

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You can't. The main amplifier module will probably have a channel blown. The unit is detecting this and tripping into protect mode to stop further damage occurring. Needs to go to a repair place. sorry. ps If you get sound briefly before it trips off then it may just be a speaker wire shorting out! worth checking

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It says protect and then shuts off


que devo aser si cuado lo ensiendo se a paga y dise protect y se apaga

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You have a short in the internal power of this unit. It is going into protect and shutting itself off to keep it from damaging anymore of the internal electronics. Very likely a voltage regulator has gone bad or a power capacitor has gone bad. You will not be able to repair this yourself unless you are skilled in electronic repair. I would suggest contacting the manu and seeing if they have a authorized repair shop in your area. If not ask around and see who is a reputable repair shop in your area.

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Hi ,
Does your unit go into protect mode without speakers connected?.
Jango

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Hi ,
Does your unit go into protect mode without speakers connected?.
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I've got a jvc hx-d7 i am working on for a friend, he had it repaired once at a shop with this same problem, they replaced two 42v 2200mf caps. and one A1273 this solved the problem for 8months now its doing it again. I am trying to locate the A1273 to repair it again. Hope this helps.

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That could meen that something is improperly connected. You should try to disconnect everything, and then reconnect it step by step.

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I had a similar problem, and took it to an authorized repair shop(under warranty), the kept it six months, and JVC finally admitted there are solder connections with that model, and six months later, we got a new unit. I will buy Sony next time

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