Question about Onkyo Receiver Model TX SV424 Audio Video Control Tuner Amplifier, Black

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Onkyo TX-SV424 stuck in protect mode.

I turn on the receiver and it says protect on the screen. I have tryed to leave it off for the night and to turn it on without any cables plugged in, both of these did not work. Does anyone have any answers. Thanks in advance!!

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Posted on Jan 02, 2017

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SOURCE: Onkyo Tx-v940 Receiver/Amplifier Protection Mode

Audio amplifier IC's damaged you need to change it.Good luck

Posted on Jun 11, 2008

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SOURCE: Onkyo TX-SR500 5.1 Receiver Last night

1-disconnect subwoofer first and test-and then disconnect surround speakers-and front speaker after-and later center speaker.ever time you disconnect you check the operation until you find the bad one(or two)which make the problem change its cable first and then change speaker itself.if all above failed contact the service center.

Posted on Jul 04, 2008

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SOURCE: stuck in protect mode

i believe protect mode is because you have the wrong impedence speakers, they are too low (4 ohm? 6 ohm?) it chols work with 8 ohm speakers

Posted on Dec 11, 2008

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1 Answer

Receiver worked last night. I turned it on this morning and it just clicks over and over. Never comes on. I have to unplug it just to make it stop clicking.


Hello,

What is the model number of this receiver? It could be in Protection Mode. Is power button on the unit flashing red? If so, that's protection mode. It could be as simple as a speaker wire got crossed or cut but it could also be something internal.
Step 1: Label all wires plugged into the receiver so you know where to put them back.
Step 2: Unplug everything, including the power cable.
Step 3: Leave it unplugged for 10 minutes.
Step 4: Plug in *just the power cable*
Does it still click? If so, it's an internal component that's bad.
Does the clicking stop? If so, add one wire at a time, waiting 1 minute before plugging in another wire. Keep adding wires till the clicking comes back. Once the clicking comes back, unplug the last wire you plugged in. That wire has a problem. It could be the wire itself or the device connected to the wire. If it's a speaker wire, for example, it could be that the wire got chewed or cut, or it could be that the speaker got fried inside.

Mar 19, 2016 | Denon Audio Players & Recorders

2 Answers

Stays protection mode, how can i fix this?


Disconnect all speakers (at the amp terminals) and the RCA's leaving just power, ground, and remote connected. Does it turn on now without going to protection? If so, plug in the RCA's. Still good? If so, you have a shorted wire or bad speaker. If it still stays in protection, the amp is faulty. Have it repaired or replace it.

Dec 22, 2013 | PLANET Audio Rxd2400 Car Amp

1 Answer

Trying to hook up sony s-master with componet cables an the s-master displays on the display ''PROTECT UNPLUG'' however with nothing plugged in the s-master, works fine


Hi,
Check speaker wires, any wire seems shorted and causing Protect Unplug error message in receiver.
Good way to sort out bad wire is plug one speaker at a time, turn On receiver check, turn Off, then plug next speaker wire until you find out what speaker wire activates protection circuit of receiver.
Thanks.

Jan 01, 2011 | Audio Players & Recorders

1 Answer

Clicking with no Sound


The TV is on protect mode. This happens when an internal fault is detected. When a fault is detected the protection circuit prevents the TV from starting , the clicking sound is the protection switch that keeps turning off the TV.
Sometimes protection is triggered by an incorrect voltage, or electrostatic charges accumulating on the TV PSU capacitors. In that case the problem is temporary, and will disappear leaving tv unplugged for some times. More often, when tv goes on protect there is an internal fault that must be fixed.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.


If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

Jul 12, 2009 | Vizio GV46L 46 in. LCD Television

1 Answer

My amp wont turn on


I have heard this problem occurs often with the vypyr I have heard to try and turn it oun without your guitar cable plugged in and it should work fine. If not try wiggling the guitar cable out a little and and should turn on and try and get the update for it.

May 06, 2009 | Audio Players & Recorders

2 Answers

STR-DE475 receiver flashes "PROTECT" when turned on


Protection is usually a sign of overheating or something is wrong at the power amplifier's output.

Theory: Protection is a delay and sometimes an internal test to allow the electronics to stabilize during power up before they are allowed to interact with the speakers. The most common cause of it remaining ON is that a speaker cable pair is shorted. Some isolation is required...

1. Turn the Power OFF.
2. Disconnect each set of the speaker wires that are directly attached to the receiver. Mark them so you remember where each one went. pay special attention to which conductor is on "+" or "POS" and which is on "-", "COM" or "Ground". You may elect to disconnect them one pair at a time if your sytem is complex and you don't want to lose track of where things were.

Turn the Power ON. Is the "Protect" indication gone from the display?
--------------------
If YES, you have a shorted speaker wire or speaker. To isolate the specific cause:

1. Turn the Power OFF.
2. Attach ONE speaker wire pair at a time and test it by turning the Receiver ON. When the "Protect" light returns you have isolated at least one of the cause(s). Disconnect the defective speaker cable and continue isolation of all speaker cables. Visually examine the cable at both ends for frayed wires that could touch each other or contact metal on the receiver or other objects.

To isolate further within the cable/speaker pair - disconnect the speaker end of the cable on the failing path. Try another cable that you know works, or at least one that doesn't cause Protection to stay on.

If you're electrically savvy and have a Digital Volt/Ohm Meter you can troubleshoot the short(s) with it.
-------------------------

If NO, there is probably an internal problem.

Is it solid or does it come on after the Receiver has been ON awhile.
It could be overheating.
Is the unit hot to the touch?
Is there a cooling device (fan)?
Is it stopped or clogged with dust?
Is there adequate ventilation around the unit for air to flow?
Clean any ventilation slots on the top and bottom of the unit.
Avoid stacking components that produce heat under an amplifier or receiver. Their heat rises. Also keep them away from other heat sources like like home heating vents and radiators.

Problem solid and NOT related to the speakers or heat: internal malfunction.

Let me know.

Apr 02, 2009 | Sony STR-DE475 Receiver

1 Answer

Every time I turn on my Onkyo receiver it goes in to protect mode.


Please check your speaker cables. Make sure that all of them are seated properly, none is touching each other or to the body of receiver.

Are you using banana plugs for connecting speaker or just directly. Some times even a little tiny frayed speaker cable touching the receiver could trigger the protect mode. Be careful, since protect mode is sometimes not fast enough to activate and it could blow a few trasistors in the power output circuit.

Please take out all the speaker cables, unplug your receiver from the mains and try to restart without any cables plugged. If it powers on then you are lucky.

If not and the receiver still goes into protect mode or wont turn on then it possible that there are bad connections on the main board or have some blown transistors. How old is your system? if its still under warranty then you should contact Onkyo immidiately.

Let me know if I can be of any further help. Please do rate this solution and thanks for using FixYa!

Mar 08, 2009 | Onkyo TX-SV727 Receiver

1 Answer

Protect mode shuts down the receiver


If this happens only when connecting the receiver, chech the receiver cable. If the cable is fine, receiver connector at the back of receiver is faulty.

Protect mode will kick in whenever a fault is detected.

You get the unit not powering up, and sometimes you hear a clicking noise, that is the protection switch that keeps shutting down the unit.

Causes that can start protect mode are:

Electrostatic harges on internal circuits.
Leave the unit unplugged for power for one hour or so, this will allow discharge.

Bad speaker wiring.
Check speaker wiring, try unplugging and plugging back, or start after removing one speaker at the time.

Internal fault.
Internal fault is the natural cause for protect mode. If all the above did not work, then the problem is a blown component or an internal fault. In this case the unit must be taken apart , tested and repaired by an experienced person.
If the unit is less than one year old, or if you want to get service, call Sony at the phone number listed on the product documentation.

Regards.

Dec 23, 2008 | Samsung HTZ-510 Theater System

1 Answer

Standby light blinking tv doesn't turn on


The TV is on protect mode.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.


If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

Dec 14, 2008 | Sony Bravia KDL-40V4100 40 in. LCD HDTV

1 Answer

Toshiba 46H84 tv turned off light blinking


The TV is on protect mode.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.


If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

Sep 17, 2008 | Toshiba 46H84 46" Rear Projection...

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