Question about Yamaha RX-V800 Receiver

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Power reset goes into auto-protect at the drop of hat. rechecked all speakers and disconnected sub. will reset sometimes other times no. but will always click when standby/on button pushed.

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That is actually a sign that the reciever is bad. it usually means the amp is blown. Not in the sense that it wont work. But its overheating and thats where the problem lies. In your case it could be causeing a short. for this reciever it only costs 130 for the pcb board that goes bad. I know no one likes to hear that there stuff is broken. But when i worked for Square Trade i seen a few dozen of these units come through and it was always the amp which can still be serviced by yamaha. -Thanks Nate

Posted on Jun 14, 2008

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1 Answer

I have a 252 u and it will not reset it just says protect


Disconnect unit from power supply for at least twenty mins , it's most likely you have a short or crossed wire on the power side rather than a speaker wire problem you should have 2 x power one switched ( comes on when you turn the ign key ) and one permanent 12 volt , connect your radio earth to the car chassis to make sure you haven't picked up an aux wire from the loom.

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I have 2 amps instalkled in my car one is sony 1200w 2 channel amp for speakers and one is solid audio f2500d for 3 subs my sound and every thing was good but suddenly from yesterday im having trouble when...


First disconnect the CD head unit from the sub amp and see if the other amp works. If yes, the problem is the wires to the amp, the amp itself, or the subs/sub wiring. If no, the problem is the head unit--probably an internal short.
If the other amp works with the sub amp disconnected, reconnect the sub amp to the head unit, but disconnect the sub wires from the amp. Try the CD player. If the amp goes to protect with no speaker wires attached, the amp is bad. If the amp is OK, the problem is the subs or sub wires. Hook the wires up to the amp again, but disconnect them from the speakers. Try the player again. If the amp goes to protect, the problem is the amp wiring. If not, the problem is the subs. Check the impedance of each sub using an ohmmeter to determine which amp is out of spec.
Please let me know if you have questions, and thanks for using Fixya.

Jun 11, 2011 | Solid Audio F2500D 1-Channel Amplifier Car...

2 Answers

No sound protection light on.


Either blown subs, or bad amp.. Disconnect the subs, and try turning the amp on, if the amp is still in protect then your amp is bad, if the protect light goes off, then your subs are bad, or possibly wired at to low of an impedance, but I don't think that will trigger the protect on an Audiobahn amp.

Aug 21, 2009 | AudioBahn A2002T Car Audio Amplifier

3 Answers

Red Power Protector light


Hi, the only way i can see the amp resets the stereo is that power is dropping. The amp should have its own wires directly to power/battery so as to not affect anything else.

On the protect, try to disconnet all the speakers, make sure the power is OK. If it appears to work, the there could be a problem with speakers/cables. Try a different speaker to see if it works. If the problem continues with speakers off, a different speaker etc, then there is a problem with the amp. Hope that helps

Jul 21, 2009 | Sony XM-2100GTX Car Audio Amplifier

1 Answer

Power acoustiks amp wont get off protection mode? how do i reset it? please help me i tried everything.


Hello nfox1987,

First you need to determine if the amp is defective or if something else is causing it to go into protection, most often a short in the sub or amp wiring.

Disconnect the sub(s) from the speaker output terminals and the RCA inputs from the head unit, and test if the amp powers up OK. If it does, the problem is in the sub(s) wiring or voice coils, or in the RCA inputs to the amp. Reconnect each one-at-a-time to determine exactly where the short is and repair or replace the defective wiring or unit. If it doesn't power up with the inputs and sub(s) disconnected, the amp itself is most likely defective.

Hope this helps.

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1 Answer

My isub knocks out the in built speakers when i plug it in, Please help.? Thanks. K... I have a G5 2.1Ghz processor and am using OSX 10.5.6. the isub works for a few seconds then the whole sound goes dead...


It is possible the sub is turned up to high or is drawing to much power and the system goes into protection mode. Turn sub down all the way when connecting, than go into your taskbar, find the volume control icon, right click, go into properties settings and than you can choose which speaker set-up you have.

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1 Answer

INFINITY AMP PROTECTION LIGHT FLASHING


Overload maybe. If the amp is run at an improper impedence, the amp will shut down. If you are "CLIPPING" speakers / subwoofers the light will blink to indicate a hard clip . Example: 4ohm/2ohm stable amp with 4 ohm subs wired at 1 ohm.

Jan 28, 2009 | Infinity Reference 7541a Car Audio...

1 Answer

How to test your speaker


Check sub buy pushing cone in gently if you hear or feel a rasping sound the sub is blown,if not check for a fuse where the power cable goes in as this may need replaced.Also make sure you have the sub plugged into the sub pre out and not the six channel input.
PS did switch on the sub in the speaker set up in the menu?
hope this helps.
CABLE GUY.

Jul 01, 2008 | B&W ASW1000 Speaker

1 Answer

Auto protect


that is actually a sign that the reciever is bad. it usually means the amp is blown. Not in the sense that it wont work. But its overheating and thats where the problem lies. for this recieve it only costs 130 for the pcb board that goes bad. I know no one likes to hear that there stuff is broken. But when i worked for Square Trade i seen a few dozen of these units come through and it was always the amp which can still be serviced by yamaha. -Thanks Nate

Jun 08, 2008 | Yamaha RX-V800 Receiver

1 Answer

Problem with amp...


In virtually all instances where the protection light is illuminated, the amplifier has gone into protection because the output transistors are shorted. To eliminate external wiring problems do the following.

Disconnect all speaker wires from the speaker terminals of the amp and disconnect signal cables from the amp. If it powers up, the wiring needs to be checked. If it still goes into protect, the amp likely has blown output transistors.

If it does have blown outputs, it's is likely due to the speaker wires shorting together when the woofer was out of the vehicle.

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