Question about Yamaha RX-V373 5.1 Channel AV Receiver

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I got this from a friend and been trying to fix it. I have made sure it was not in protected mode and as you can see comes on and then off after a certain amount of time. I can not keep it on long enough to check voltages. I would love a schematic and/or some help. I want to try to get it working. I have pulled the transformer and measured ohms across it and get 2.5 ohms. I would expect the transformer to show higher ohms. Any help is appreciated. I then found this video which states the ohms should be bigger. http://www.youtube.com/watch?v=1xIlqe... i did unplug transformer and some of the other leads and found on c1504 5 volts on one leg which i would think it normal and then c1502 i did not find any voltage on any leg ???? Also if you just hit the power button nothing happen at all. No relay click or anything. i made a youtube video to help http://www.youtube.com/watch?v=67GEcKIbqs8

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: Yamaha RX-V995 no power no audio [dead]

sounds like a short in the cpu of the unit

Posted on Mar 07, 2008

  • 4234 Answers

SOURCE: Yamaha RX-V420 No power

If the standby voltage exists, the next step is to see whether or not the clock is working. Find the main micro chip. There should be a 3 legged crystal close by. You should see this oscillate (use a scope). No oscillation = no micro control = no turn on. It is possible that the micro is bad or the crysal is bad. Also, check to be sure that the output transistors are not shorted. It is also possible that these are preventing the system from turning on.
Dan

Posted on May 12, 2008

  • 14 Answers

SOURCE: Yamaha HTR-5890 not powering up

Power supply is burned out. surge or spike got it, replace power supply unit.

Posted on Sep 08, 2009

carloadrian
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SOURCE: Yamaha sp 900 TV and device

Hello,

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Posted on Feb 16, 2011

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1 Answer

How can I get Dynex TV out of "protection mode"?


the protected mode kicks in when there is a safety issue with the receiver. This usually comes from an overload to the system via a short in the system or perhaps a surge in power. Your receiver shuts down, and you'll need to shut the entire system down to fix it.
In some older homes, some of the wiring doesn't deliver the "cleanest" power, delivering minor power surges to the items you plug directly into the wall. If your receiver is plugged directly into the wall, purchase a surge protector to stop this
Read more: http://www.ehow.com/about_5516888_problem-sony-receiver-protected-mode.html#ixzz2ZYa9W0Mi
God bless you

Read more: http://www.ehow.com/about_5516888_problem-sony-receiver-protected-mode.html#ixzz2ZYZm8THG

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1 Answer

My amp will go into protection mode when i turn my truck on, it flashes green and beats once,then turnd protection mode on... whats wrong with it??


im not sure what is wrong but i do know if you keep it hooked to subs it will fry them because that happened to my friends jackhammer amp and 2 12" mtx jackhammers

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1 Answer

MY KENWOOD CAR CD PLAYER IS SAYING PROTECT??


Hi,

Kenwood head units show "protect" when there's a problem with the speaker outputs. This might mean a shorted speaker wire, a blown speaker, or an internal defect in the head unit. Once the condition that's causing the "protect" mode is fixed, the CD player should be back in normal mode the next time you turn it on.

If it's staying in "protect", then you'll definitely have to remove the stereo and do some troubleshooting to fix it. Many car audio stores will do system troubleshooting, for a fee. If you want to do it yourself, here's what you need to do:

Pull the Kenwood unit from the dash and disconnect all the speaker wires. Turn it on and see if the "protect" message displays. If it does, the stereo has an internal defect and will need to be serviced. If it doesn't, then turn it off, and re-connect one speaker. Turn it on again and see if it displays "protect".

If it works with a single speaker connected, keep re-connecting the others until you identify the speaker that's causing the problem. There may be a wiring problem or defective speaker in that location.

If it displays "protect" with a single speaker connected, then disconnect that one and try a different one. If all the speakers cause a "protect" mode, then you're probably back to a defective head unit, unless your friend managed to blow all your speakers at once.

Thanks,

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1 Answer

How can I get it out of protect mode?


Protect mode indicates a short in the speaker wiring or a faulty speaker. Just disconnect speakers one at a time to determine which is the issue, then swap that speaker with a known good speaker from a different location (other side of car). If the headunit goes back in to protect mode when a known good speaker is connected, you know that the short is in the speaker wiring between the speaker and the deck. If the warning does not come back you know that the speaker is at fault, replace it. In most cases it is the speaker rather than the wiring. Good luck, should be an easy fix if you're familiar with car audio installation, if not, find a friend who will help you, it's not worth paying an audio shop $40 just to unplug your speaker.

Oct 08, 2009 | Kenwood KDC-MP208 Car CD/ MP3 Player

1 Answer

Kenwood ddx512 was working just fine now its in protect mode and i dont have the manual


Try checking all of your connections something may have come loose, usually its a speaker connection that may have come loose and come in contact with a piece of the car's chassis or a metal part. This will cause the 512 to go into Protect mode. When you fix this hit the reset button.

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1 Answer

I am unable to start up my computer at all... I can't get to my desktop to even try to fix the problem... what do i do? The message says: We apologize for the inconvience, but windows did not start...


You must have come in contact with a virus. Does your friend have the capability of slaving your hard drive to his to remove your data. If so, then he or you can reinstale the operating system.

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1 Answer

Memphis PR300.2 Amp protect light on


If it is not turning on your problem is it is not getting power. Check your fuses. The reason an amp goes into protect mode is usually because the subs are not wired up right. Make sure your fuses are good, you have a good ground, and make sure your amp turn on wire didn't come loose when you were putting the deck back in. As for the amp going into protect you probably wired the subs down to too few ohms and the amp you have can't handle it. Try hooking the subs up straight w/o bridgeing them and turn it up to see if it works. If you don't have problems with it then you wired your subs wrong.

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1 Answer

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4 Answers

Amp comes on and goes right into protection mode


Turn the reciever on for a second or two and then off before the protect mode shows up on the monitor. Repeat this step about five times and check to see if the reciever does not go into protect mode. If it does go into protect mode try it again. Dont know if this is the proper way to fix the reciever but it worked for me. Good Luck

Mar 09, 2008 | Audio Players & Recorders

2 Answers

My stereo is flashing the work "PROTECT" across the front


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