Question about Mitsubishi M-VR1000 Receiver

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Protect My Mitsubishi M-VR1000 turns on then breifly flashs "PROTECT" then immediately shut down. I can find no fuse or reset externally to change or push. So, what do I do and does anyone have a user manaul?

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Re: Protect

The very FIRST thing to check is to make certain ALL of your speakers have an IMPEDENCE of 8 OHMS. Virtually all speakers of even modest quality will include this specification on a label on the back of the speaker. You CANNOT run more than (2) TWO speakers with 4 OHMs impedence on ANY amplifier (technical discussion too long!) [NOTE: Your unit has an internal overload protection system to prevent permanent damage. However, you cannot re-set these systems yourself. Your dealer or authorized service center must do this.] But, before you take it in for service, there is one more "test": check for shorted and/or mis-connected/disconnected speaker cables/wires. Visually inspect connections at the receiver and speakers first. You might find something obvious! If everything looks okay, then disconnect ALL of the speakers; and reconnect and test them one at a time (at relatively low volume.) For example, reconnect the left front speaker, test the system; THEN add the right front, test the system,and so on, ADDING one more speaker each time - FIRST MAKING SURE EACH OF THEM HAS AN IMPEDENCE OF AT LEAST 8 OHMS! IF there is a short (or bad speaker) this will help isolate it. Hopefully one of these "fixes" will work for you. GOOD LUCK!

Posted on Jul 18, 2007

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How do I reset a technics sa-gx350 receiver unit

Don't know that you can actually reset this unit like the new digital receivers. It does have protection circuitry that will shut the unit down in case speaker wires are shorted or if speaker impedance is less than the indicated rated impedance of the amp. do the following:
1. Turn off power and unplug from wall.
2. Check all connections and correct if needed.
3. Turn back on after 1-2 minutes.
If unit is still in protect mode you may want to unplug everything from the unit and then power back up to see if the problem is internal or external. If it powers up correctly then the problem is external. Power back down and plug in one external item at a time and power back up between connecting each item to see which item causes the receiver to go into protection mode.
If problem seems to be internal I'd recommend taking to an electronics repair shop if you aren't comfortable with taking apart to check fuses, terminations, etc. There may be a 5-amp fuse in the power plug head also.

Oct 21, 2013 | Audio & Video Receivers

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I heard a pop and smelled something that smelled like it was burning then the protect light came on then it shut off

Where there is a smell something burned---my suggestion is have a shop look at the unit and get a repair estimate---you can try that yourself but taking apart correctly is not always easy and there is a chance you might cause more problems---even if you find burnt part/s you will not likely know what got them.

Nov 08, 2012 | Mitsubishi M-VR1000 Receiver

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No sound. It flashes protect.

Your device has went into protection mode, an internal malfunction causes it to shut down in order to protect itself.
Somtimes a physical reset will help.
Turn of and unplug device fro a couple of hours

Feb 15, 2012 | Sony STR-DE345 Receiver

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I have a Tevion 7.1 amplifier (AVR 2006). Protect overload flashes up and then shuts down. I have only had limited use since I had the unit from new (a few days). Last time using it someone pluged an...

The protect indication is due to a overload on the power amplifier unit. So you need to check the speakers to see that they are not shorted. remove all the speaker lines and switch on.
if there is a processor reset, power off the set and switch on while holding the selector/standy by switch. if not there is damage in the output within the amplifier.

Apr 26, 2011 | Audio & Video Receivers

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How do i get the protect mode off

turnit it off complety, unplug, check for speaker cable shorts and then power backup, if it does it still get a service person to look at it, one of the main output power transistors could be faultiy on one of channels amps

Mar 21, 2010 | Mitsubishi M-VR1000 Receiver

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Protect flashes. I reset as manual instructed. I

Don't forget to disconnect your sources also(dvd,satellite,vcr,cd player,etc) they could have a short in any of them causing receiver to go into protect,If still flashing "protect" your Sony could have an internal short of it's own, or caused by an external short previously mentioned. Good luck !

Nov 27, 2009 | Sony STR-DE695 Receiver

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8001 Receiver keeps going into protect mode. What

Fastest way to check the receiver is to disconnect all speaker wires at the receiver and turn the unit back on. If it does not go into protect, your receiver is ok and you need to check all wires and speakers. If just one piece of braid on a speaker wire touches the other, it may not shut off immediately, however, as you turn up the volume the current level rises in the wire and creates a short. Thus, shuts down the receiver. If you need further help troubleshooting, post a comment and I can walk you thru it. Hope this helps.

Aug 16, 2009 | Audio & Video Receivers

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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.

Jun 17, 2009 | Onkyo TX-SV727 Receiver

1 Answer

Protect keeps flashing

Protet mode is a special diagnostic mode that starts when a fault is detected.

When in protection mode the unit is prevented from starting by protection circuit, so to prevent further damage.

Check the speakers and speakers wiring, a contact in speaker wires, or faulty speakers can send the unit in protection.

Try unplugging power cable for one hour or so. then connect cable back and see if you get rid of protect state. Sometimes accumulation of electrostatic charges inside circuit capacitors can kick in protect mode. In that case unplugging the unit from main for some times can get rid of electrostatic charges, and reset circuits by draining power completely.
If that was the problem, you will not get Protect when plugging back power cable.

If you do all the above and still get Protect, then there is a real fault.

In that case the unit may be disassembled and tested to find the fault.

If that is the case I suggest contacting the manufacturer at the number listed on the owners manual, or asking a quote on repair to a local technician.

Apr 23, 2009 | Sony STR-DE475 Receiver

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Goes immediately into protect mode

Yep. The wiring to your speakers or the speakers themselves have shorted out. You have a blown fuse. You'll need to either replace the unit or attempt to replace the fuse yourself.

Sep 10, 2007 | Sony STR-DE425 Receiver

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