Samsung Ht-d5500 5.1 Channel Home Theater System With Blu-ray Player Logo
D. Miller Posted on Jan 13, 2013

Turn off protect mode

Nothing is connected to it. not even speakers.. immediately goes into Protect mode and powers off...

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John Gillihan

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  • Posted on Jan 16, 2013
John Gillihan
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Probably power supply board. Remove and inspect for burns - front and back. Can be purchased for $50-60 on line. Google the part number.

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ginko

Ginko

  • 19396 Answers
  • Posted on May 04, 2009

SOURCE: 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.

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Francisco Mauricio G

  • 1551 Answers
  • Posted on Aug 14, 2009

SOURCE: SAMSUNG DIGITAL HOME CINEMA SYSTEM MODEL HT-Z110

Maybe the audio amplifier Ic are damaged and need to be replaced

Anonymous

  • 137 Answers
  • Posted on Oct 06, 2009

SOURCE: Protect

sounds like one or more speaker cables are either shorting or not connecting...I know you have checked all cables, but if it was defo ok in the other room, theres not much more that can be wrong. (i'm assuming that you turned the device off before dicsonnecting everything).

If you are using the same speakers, did a speaker get damaged in transit?

you can test your speaker cables and speakers with a basic Ohm meter..disconnect each speaker connection from the unit and test for resistance..should read similar ohms to what your speakers are (usually 6-12 ohms in home hifi). if any connection gives a significantly higher or lower reading, thats that culprit.

Anonymous

  • 2 Answers
  • Posted on Oct 30, 2009

SOURCE: HT-Z310 shuts down and goes into protect mode

Help! I have the same problem.

Dave
[email protected]

Anonymous

  • 37 Answers
  • Posted on Jun 20, 2010

SOURCE: My HT-Z310 surround sound says protect

The amplifier has a bad channel, the power supply is bad, or the amplifier is drawing too much power.The speakers could also be wrong, if they are not the speakers that came ith th unit, they will need to be replaced. (Any speakers within the specs of the amplifier will work, so to that end the system is customizable. You can go to Samsung.com to find the amplifier's wattage per channel, but the speakers you get MUST be 3 ohms impedance.) I have an article/tip/how-to as to wiring multiple speakers to one channel.

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"Protect" is what it does when it senses a dangerous condition.


Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.

Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.

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DENON UD-M30 CD Player is displaying the word PROTECT and will not function. Any ideas how to fix this problem? Many thanks.

HI:
Usually when a receiver goes into protect mode, there are several reasons, One is there is a bad speaker connected to the unit, this will cause the unit to to into protect mode, try disconnecting all speaker from the unit and turning it on if it does not go into protect then one of the speakers are bad. Another reason is the power output Amplifier IC is shorted inside the unit. Another reasons could be that speaker wires are touching each other and causing a short. Disconnect all unit connecting to the unit and try turning on, if it stays on and no protect then connect them including the speakers one at time until you determine which is causing the error. If it goes into protect with nothing but the unit on then the Output IC is bad and the unit needs servicing.
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I have used the amp for a while running 4 speakers. the front are components, and 6x9 in the back. The amp worked great and was loud. The amp just stopped working one day when i turned it on. Turns on...

One of your speakers might have burned out, shorting the wires that connect it to the amp. Disconnect one speaker at a time from the amp, turn it on(try all four, turning the amp on and off each time you disconnect a speakers wires) and you can pinpoint which speaker might be causing the amp to go into protect mode. If you disconnect all the speakers and the amp still goes in protect mode, then the amp is shorted internally and will need to be replaced or repaired.
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When i switch on my samsung HT-Z110 the word hello appears then protect thenit turned off!

Audio receivers have an output protection circuit called "protect mode", this is to protect the receiver from short circuit failures.The speakers and speaker wires are what I inspect thoroughly first, look for bare speaker wires,or bare wires that are touching each other at that point,check speaker wires at the back of the receiver for sloppy connections,etc.If all looks good then try disconnecting all the speakers at the receiver,then turn power on to see if it goes into "protect mode", if it does the the receiver probably has an internal short and will need to be sent in for service,if it doesn't go into "protect mode" then connect one speaker at a time back into the receiver until it does go into "protect mode" then which ever speaker you connected last is the speaker that is shorted(blown) and then you know that speaker is the problem and it will need to be replaced or repaired. Good luck !
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The receiver turns on and immediately goes to standby

The unit is going into protect mode. Lets hope it has done the job and the receiver has protected itself from failure.
Protect mode can result from speaker wires touching each other or the Amps metal case. Check that first.
It can also be caused by unstable ohm loads if too many speakers are connected to any of the outputs especially zone 2.
If you can remove all speaker wires and turn the unit back on. If it stays on, turn the volume down on the main zone and zone 2 if connected. Then reconnect speaker wires.
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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!
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Stuck in protect mode

Speakers shorted out, blew a fuse. Replace the unit or (cross your fingers and) open up the box and find the blown fuse.
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