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No sound I've had my stereo for some years now and one day it flashed protect on the screen and now there is no sound. I've tried the speakers and they still work and everything still comes on there's just no sound. What should i do?

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Sometimes, an electronic pulse can cause this protect mode. this can come from an electrical storm or, bad circuitry in the home. Unfortunately, you may have to repackage and send back to the manufacture for repair.

Posted on Jan 28, 2009

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Sony STR DE835 receiver - no sound from speakers and headphone jack


The problem is in the audio output semiconductors, they have shorted causing the fuses to blow and it is in auto protect mode to prevent further damage. I recommend a professional to assess.

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I have a jvc kd-r311 radio in my car which has been working for about a year now, but a few days ago it came up saying "protect" on the front and now doesn't work, I've tried pushing the...


If you have a multimeter, try checking the speakers and speaker wires for shorts and/or grounds. Make sure your speaker wire has no bares spots. If the speakers and speaker wires all check out good, you may have a bad internal output ic.

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I am installing a kenwood cd receiver kdc-mp205 every thing is hooked up but the screen says protect wat is the problem?


Hello.. sorry to hear you are having problems. With the Kenwood car stereos, when they detect a bad speaker in the car, they go into protect mode to keep from burning up the outputs of the stereo. Either you have a bad speaker in the car or a speaker wire that is touching metal (grounded out). You can cut all of the speaker wires loose at the radio and reset the radio. Then turn the radio on and hook each speaker up one at a time until it goes into protect and that will let you know where your problem is located. Hope this helps and good luck with your venture!

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I got a panasonic stereo for my birthday about 3 years ago. I had a party over the summer and we had the stereo sitting outside playing cds. Then all of a sudden the stereo shut off and then everytime i...


Hi,
f61 is a protection code. it means theres is a fault with audio output ic, usually there is dc on one of the speaker output rails, replacing the audio output ic will usually cure this but check speakers and leads for shorts before reconnecting to the unit.


Thank You

Sep 07, 2010 | Audio Players & Recorders

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My car stereo flashes the word "PROTECT"


If this happened while playing music at a little higher volume, you must check the speakers for short in coils. disconnect the speakers to see if the protect condition changes, if so check the speakers and wiring. If not then you must have blown up the output IC or a power shorting within the set. You will have to remove the pcb disconnect the power to the output IC to confirm the fault. Helpful I hope. Good day

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I have a Kenwood car stereo KDC - MP4033 and the word "Protect" is flashing and i can't get it to work, no sound or stereo


check your speakers and speaker wires for shorts, and then disconnect power to the radio for a few seconds and reconnect it.

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1 Answer

Flashing protect


the protector comes on to keep the amp from further damaging itself or the speakers. The buzz you heard was probably 60HZ line buzz from the main DC supply conducting full current through one of your speakers through a damaged amplifier transistor. Your stereo will need professional repair. The protect circuit basically opens the speaker relay (and sometimes shuts down the unit) to prevent this DC voltage and current from getting to your speakers until the problem is corrected.

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The dvr99 3 dvd home theater receiver will not stay on


Protect kicks on commonly when it over heats or when the speaker wires are crossed and it detects a short on the output. Your symptom sounds as though it may be a speaker wire because it happens right after the power is turned on. Check the speaker wire carefully, it has a habit of breaking inside the connectors of both the receiver and the speakers, especially after 5 years of service.

Feb 27, 2009 | Audio Players & Recorders

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It says protect on the front screen


An amplifier goes into protect when it detects a load with too low an impedance. If it displays protect with no speakers connected at all, the amplifier is damaged. If not, reconnect speakers one at a time (while the amp is off!) to determine the cause of the fault.

It may be as simple as a single strand of copper wire shorting between the positive and negative terminals of a connection.

:)

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Vollume trouble


the system protect is usually displayed when a condition of short or shorting is occurring in the speaker wiring or the voice coil of any of your speakers.... thte circuit of you reciever is trying to protect itself and you from a very costly repair,,,so it you have another set of speakers try to use them and see if the condition still exists and if it does the problem is in the output section of the receiver,,,and if the protect no longer exists you have fixed your problem,,,good luck

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