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

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Protect everytime I turn this device on it flashes status and then goes directly to PROTECT the goes into standby, i tried resetting it, but it still does this, any ideas?

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  • pimp_in_lil Oct 25, 2008

    when i turn on my jvc dvd stereo player it says status then protect. Then after that it powers down even when the speakers arent plugged in.



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The protect message indicates that a problem has been detected in the final output stage of the amplifier. The most common failure parts are the output transistors. Plan on a parts cost between $15-$40. Add in the local labor rate for the total repair cost.
Dan

Posted on May 29, 2008

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1 Answer

Standby indicator flashes


When the "Protection" indicator comes up the display panel of my receiver or the On/Standby LED is flashing, does that mean my receiver needs to be repaired?
The "Protection" light comes on when the receiver's current sensing and thermal monitors detect some unusual operating condition that, if left unchecked, might damage the amplifier. This can happen if there's a dead short in a speaker wire or if you're using very low impedance loudspeakers at high volume for an extended length of time. On older model AVRs you may see the word "Protect" on the receiver's display. More current models will indicate a flashing red light on the Standby LED when a Protection circuit trips
n thermal cases, the circuitry will automatically reset after a few minutes of cool down and the Protection indicator will go out and normal operation will resume. If the protection light came on due to a speaker wire short, low impedance condition or a bad speaker, the receiver's power will need to be turned off to reset it. Before turning the power back on, all speaker wire connections should be checked for their integrity at the receiver side and at the speaker side. If the protection light goes on immediately after you turn on the receiver, disconnect the speaker wires at the receiver side and retest. If the receiver's protection light goes off, then there would still seem to be a problem with one channel's speaker wires or speakers. Connecting them one by one and retesting should allow you to find the problem speaker or connection.
If after checking all your connections, the Protection indicator stays lit, you may need to "initialize the microprocessor (see the FAQ on that topic) or take your receiver to an authorized repair center for a diagnostic. The "Initialization of the Microprocessor" or "reset" procedure can be found in your owner's manual on current model AVR product. Please note, this will erase all setup configurations in the system and require the system to be setup again. You may want to mark down the settings before resetting your receiver to aid in the setup process. If you had an installer setup your system, you can contact them for assistance and any associated costs that may apply to setup the receiver again would be the responsibility of the owner.

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1 Answer

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No power output or display.green standby light flashes.


Sounds like either a blown mainpower fuse or the thermal fuse for the power transformer. If the protect circuit was kicking in, the display would light up, but then turn off with a red blinking light. the green light with no display means the transformer is not getting power.

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Hi, try powering up the unit with out any speaker connected if it still goes to PROTECT try factory reset if possible.
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After turning ON the power/standby switch, the unit(receiver) display comes ON (green light) then after approx.4-5 seconds the display goes OFF and the unit defaults back to the standby mode (red light). I...


Is the red light flashing at first?
The unit may be going into protect mode. Lets hope it has done the job and the receiver has protected itself from failure.
Protect mode can result from speaker wires touching each other or the Amps2_bing.gif metal case. Check that first.
It can also be caused by unstable ohm loads if too many speakers2_bing.gif are connected to any of the outputs especially zone 2.
If you can remove all speaker wires and turn the unit back on. If it stays on, turn the volume down on the main zone and zone 2 if connected. Then reconnect speaker wires.

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According to Page 46 of the LBT-W5000 Operating Instructions:
"The display stars flashing as soon as you plug in the power cord even though you haven't turned on the system (demonstration mode).
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I tested this today, as my LBT-W5000 was in Demonstration Mode. It definitely works. The only catch is (at least on the W5000), and it's a minor one, you have to reset your clock afterwards.

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1 Answer

Flashing PROTECT


This is often caused by a problem with the speakers or speaker wiring. A speaker wire that's pinched behind the head unit will cause this problem if it's shorted to dash metal or the deck chassis. The first thing to do is remove the head unit and inspect all the speaker wiring for bare spots or pinched spots. If everything looks okay, disconnect all four speakers from the deck and switch it on. If it still shows "protect" then you have a defective head unit. If not, then turn it off, re-connect one of the speakers, and turn it on again. Continue until you find the speaker output that puts the deck into protect mode.

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