Turns on and turns directly off after only a couple of seconds

Question 1

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1answer

Turns on for a couple seconds and then it says power off and shuts down,what could be doing this?

Try disconnecting each speaker one at a time and see if the amp turns on normally. If it does then you should replace the last speaker wires you pulled. Beyond that, the amp could be bad.

Jan 23, 2016 • Pioneer VSX-D308 Receiver

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When I turn on my unit, a Harmon/Kardon Model HK3490, the red light turn to white, then turns back to red after a couple of seconds. Nothing else powers up. Any suggestions as to what the problem is

This sounds like a safety problem. The unit might have developed a short in the main amp section and so shuts down to prevent damage. One thing that might cause it is wiring problems to the speakers. Possibly a two wires touching or a break in the cable.

Jan 28, 2015 • Audio Players & Recorders

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1answer

Carver manual

Could be....

There's a short in your speaker wiring somewhere
or a blown speaker

Wiring shorts might be only a single strand of copper wire. But it's enough that at higher volumes it conducts enough current between the speaker terminals to trip the amp's protection mode.

Fix the problem. Go through your wiring. Check using a torch. If all looks good then it's a blown speaker.

Remove the speaker wires from the amp. Switch the amp on and turn the volume up full. The amp should stay on. Turn the volume down and switch off.

Now connect ONE speaker only. Try the amp on and volume up again. If it trips out then that's the faulty speaker. Repeat by adding one more speaker each time. When the amp trips, the last speaker added is the culpret.

If you've done all the simple stuff, then what's left is a problem with one of the output transistors. It needs the output transistor(s) replaced inside the unit. These directly drive the loudspeaker outputs on the receiver itself, and one or more of them being shorted (closed circuit), will trigger the error on the display of the receiver, and it will not go off until the problem is repaired. They are not user-replaceable as they are PCB mounted, and thermally coupled to a heatsink. In this case, the unit is in need of service.

Sep 07, 2014 • Audio Players & Recorders

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1answer

RX-V665 turns on for a second then turns off

don`t open it yet

check ur speaker wires, try disconnect all wires from back of unit and then try to turn on unit .
if it stays on whit no wires attached than u have short connection at speaker wires .
if doesn`t come on then try to fasten screws at back of the unit ,
may sound like BS but if amp board don`t have good ground connection it can go in protection mode happened to me on RX-V592

Dec 13, 2012 • Yamaha RX-V665 Receiver

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1answer

I have a Chevy colorado. Installed JVC head unit. When I put the key in to acc the radio turns on an plays indefinitely. When I start the engine the radio turns off for a second (as normal) and turns back...

make sure you have a solid ground.

Jan 30, 2011 • Car Audio & Video

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1answer

I have a problem with my samsung ht-up30 home theather system. When i turn it on it only shows "PROTECTION" and turns itself off right after that. How to fix it? Regards!!!

The amplifier has a bad channel, or is bad itself. It is trying to either output too much current or is not putting out enough. If you have multiple speakers wired to one channel, you will either have to change the wiring to series(unit positive to first speaker red, first red to second BLACK, second red to unit negative) or remove on speaker. (If this is the case, then you might want to look at this. It is a tip/rick to place and properly/successfully run three subwoofers, but the main concept can be used on all channels.) If all channels are wired to he correct speaker, then the amp is in fact at fault.

Jun 22, 2010 • Samsung HT-X20 Home Cinema 600W Theater...

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1answer

My alpine keeps shutting down when the volume is turned up past 20. Plus I have no sound coming out of my subs. I tried switching rca cables. And I sent my amp off thinking it was my amp. Their is a little...

so it turns off suddenly and then the next second it turns back on and starts playing

from that and personal expericance i belive that the radio system (radio and amp) is not reciving enough power

is this radio inside a car
if so what car

what i would do is attach bigger thicker wires to the positive and negative of the amplifier
direct from battery

positive of battery>>>> positive of amp
metal grounding point on car>>>>>> negative of amp
(do not use negative of battery use the metal of the car)

May 12, 2010 • Car Audio & Video

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1answer

Denon AVR-1604 too large front speakers blew the avr

Try disconnecting the speakers at the receiver. turn it on radio or any other source and turn up the volume. If the receiver still shuts of, there is an internal capacitor issue and needs serviced. More than likely though, it's a speaker problem. If the speakers were underpowered and at max volume, chances are the damage was to a voice coil in one of the speakers. If the receiver continues to stay on without being connected it's ok. check your speaker wires as well. Frequently loose braids on wires touch each other and create very little resistance until turned up, more volume, more resistance. Then the receiver puts itself into protection mode so no damage will occur. If you need further help, post a comment and I can help you troubleshoot further.

Aug 17, 2009 • Denon AVR-1604 Receiver

6helpful

3answers

Control station won't turn on.

That sounds like a hardware faulty i can only advise you to contact logitech.

Jun 04, 2009 • Logitech Z-5500 Computer Speakers

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1answer

I just installed a KD-G396 into my car. when i turn the keys it turns on for about 2 seconds and turns off again. Then i can't turn it on again until i unplug it or reset it.

Hi,
sounds like the unit is going into 'protect' mode. It does this normally if there is a fault in the speaker connections.

you have to check all the speaker wires to make sure they are connected without touching each other and that the wires are not shorting out to the car bodywork, or any other metal surface.

If everything looks ok. you'll have to check that 1 of your speakers isn't blown.

Regards

Philip

Sep 18, 2008 • JVC Car Audio & Video

Question 2

Steve K

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Posted on Jul 30, 2015

Steve K

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Sounds like you shorted a speaker wire together. If you remove all the speaker wires and it still turns off, then one of the amp channels is most likely blown and will need repair.

David Leth Jul 31, 2015

Thanks Steve K. I have taken your advice and the receiver is in being repaired.

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Answer 2

richie46

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Posted on Mar 18, 2015

richie46

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Possible that a speaker short may have damaged one of your output channels. When that happens it is not common for the receiver to shut down to prevent further damage to other components.

David Leth Jul 31, 2015

Thanks Richie 46, the unit is only 18 months old unfortunately the warrant was for only 1 year. I have an Pioneer SA-5300 stereo amp which I have had for over 35 years and works fine, I only bought the VSX-522-K receiver so my daughter could play her iPod through it. Looks to me like new Pioneer equipment is grossly inferior to the old equipment.
richie46 Jul 31, 2015

Older gear was certainly heavier and in some ways better because more discrete components were used and more fixable by the average DIY er. Newer stuff is all ICS and boards - all you can do is replace the suspect board and hope you nailed it. If not, you are stuck with a new part that did no good. On a positive note, electronic gear has gotten really inexpensive so that now it is replaceable, not repairable.
P.S. I refuse to get rid of any of my old gear - and since I always bought the highest quality stuff, it still outperforms the stuff out there today. Might not look as snazzy but it outperforms. So...........

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Turns on and turns directly off after only a couple of seconds

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Steve K

richie46

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Turns on for a couple seconds and then it says power off and shuts down,what could be doing this?

When I turn on my unit, a Harmon/Kardon Model HK3490, the red light turn to white, then turns back to red after a couple of seconds. Nothing else powers up. Any suggestions as to what the problem is

Carver manual

RX-V665 turns on for a second then turns off

I have a Chevy colorado. Installed JVC head unit. When I put the key in to acc the radio turns on an plays indefinitely. When I start the engine the radio turns off for a second (as normal) and turns back...

I have a problem with my samsung ht-up30 home theather system. When i turn it on it only shows "PROTECTION" and turns itself off right after that. How to fix it? Regards!!!

My alpine keeps shutting down when the volume is turned up past 20. Plus I have no sound coming out of my subs. I tried switching rca cables. And I sent my amp off thinking it was my amp. Their is a little...

Denon AVR-1604 too large front speakers blew the avr

Control station won't turn on.

I just installed a KD-G396 into my car. when i turn the keys it turns on for about 2 seconds and turns off again. Then i can't turn it on again until i unplug it or reset it.

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VSX-522-K AV Receiver

Turns on for a couple seconds and then it says power off and shuts down,what could be doing this?

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Turns on and turns directly off after only a couple of seconds

2 Answers

Steve K

richie46

Add Your Answer

Attachments: Added items

Related Questions:

Turns on for a couple seconds and then it says power off and shuts down,what could be doing this?

When I turn on my unit, a Harmon/Kardon Model HK3490, the red light turn to white, then turns back to red after a couple of seconds. Nothing else powers up. Any suggestions as to what the problem is

Carver manual

RX-V665 turns on for a second then turns off

I have a Chevy colorado. Installed JVC head unit. When I put the key in to acc the radio turns on an plays indefinitely. When I start the engine the radio turns off for a second (as normal) and turns back...

I have a problem with my samsung ht-up30 home theather system. When i turn it on it only shows "PROTECTION" and turns itself off right after that. How to fix it? Regards!!!

My alpine keeps shutting down when the volume is turned up past 20. Plus I have no sound coming out of my subs. I tried switching rca cables. And I sent my amp off thinking it was my amp. Their is a little...

Denon AVR-1604 too large front speakers blew the avr

Control station won't turn on.

I just installed a KD-G396 into my car. when i turn the keys it turns on for about 2 seconds and turns off again. Then i can't turn it on again until i unplug it or reset it.

Not finding what you are looking for?

VSX-522-K AV Receiver

Turns on for a couple seconds and then it says power off and shuts down,what could be doing this?

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