Question about Samsung HT-DM550 System

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I have a samsung HT-THX22 after 10 mins it will turn off and say protection. Can then switch back on and will happen another 10 mins later.

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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Posted on Oct 18, 2008

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tech48
  • 624 Answers

SOURCE: Protect error

This is a failure of the power supply or the amp. In either case, this unit is one that the boards are available and should be replaced. The first thing you must determain is which board is bad.
I have been repairing these since they started making them, and can tell you that it is not an easy task to figure out which board is bad. You will need a multimeter, and then know how to use it very well. 
Sometimes you can get pointed in the right direction just by knowing what was happening when it went bad.
If the unit was working and you turned it off, then the next time you went to turn it on you started getting the "protect" message in the display, you most likely have a bad power supply board. 
If you were listening to the system and it just shut off on you and then when you turned it back on you got the "protect" message, then it is most likely the amplifier board.
There is one more thing to check before you ever buy a board for this unit. If the fan in the back is not turning when you turn the unit on, it may only need a new fan. Lets hope that this is your problem, it is cheap and easy to fix. The other options may be better for you to take it to a service center to properly troubleshoot The boards are a little expensive, but that is what Samsung does with these units, they replace the boards. Most all other audio equipment from all other brands do not even make the boards available.
Check the fan first, if you need the part number let me know, I think I may have a manual to look it up for you. If you want to try and check the boards, I may be able to help a little more, but this is a very difficult thing to do over the internet. 
I would appreciate it if you would wait until we are finsihed communicating on this problem before you rate it. 
Thanks,  Dave

Posted on Jan 22, 2009

  • 121 Answers

SOURCE: i have a samsung ht-tx75 and it keeps shutting

Protection is very likely caused by an over heat condition, even with the fan working if the receiver is in a very enclosed place that warms up and is not ventilated it will cause the problem. The solution is to provide more ventilation so that the receiver can cool itself properly.

Posted on Feb 26, 2009

ginko
  • 19396 Answers

SOURCE: SAMSUNG HT-TZ212 home cinema kit comes up with protect

Protect mode will kicking whenever a fault is detected.

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.

Posted on May 04, 2009

chipsandnuts
  • 70 Answers

SOURCE: Hello Protection Samsung HT-DS900

When your home theater's display reads PROTECTION, it means the home theater is over heating and the unit will shut down to prevent any damage. This can happen if the unit is stacked along with other electronic devices or the unit is in an enclosed area that prevents the unit from cooling properly. To decrease the chance of overheating, relocate your home theater to a more open area.



If the home theater display reads PROTECTION every time you turn it on, no matter where or how the unit is placed, it needs service. To set up service call Samsung Customer Care at 1-800-SAMSUNG (1-800-726-7864). Have your model number and serial number on hand to set up service.

Posted on Jul 03, 2009

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1 Answer

Samsung HT-TZ312 Stereo System flashes protect and turns off


Turn the unit off.....reseat connector at the power board (supply).After reseating, turn it on again and the protect error will disappear....I have this problem after repairing the optr16 power supply that accidentally plugged into 220v...only the 5q1265rf (power switch)and 9v zener diode connected at optocoupler being damaged. Hope this helps! Mhar fernando from the Philippines

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When your home theater's display reads PROTECTION, it means the home theater is over heating and the unit will shut down to prevent any damage. This can happen if the unit is stacked along with other electronic devices or the unit is in an enclosed area that prevents the unit from cooling properly. To decrease the chance of overheating, relocate your home theater to a more open area.



If the home theater display reads PROTECTION every time you turn it on, no matter where or how the unit is placed, it needs service. To set up service call Samsung Customer Care at 1-800-SAMSUNG (1-800-726-7864). Have your model number and serial number on hand to set up service.

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My Samsung Home theatre shuts down automatically after working for around 30minutes. After 15minutes if I switch on works for 30minutes & shuts down again. When shutting down there is a disply PROTECTION.


sorry to telll you this mate, but i bought a samsung ht-tz 312 at
chrismas and that had the same problem,
only mine would switch its self off after about five mins
i took mine back and they swaped it saying it was a design fault
ps mine did this from new sjr2009@hotmail.co.uk

Apr 29, 2009 | Samsung HT-Z310T Theater System

1 Answer

Audio


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.

Mar 21, 2009 | Samsung HT-X20 Home Cinema 600W Theater...

2 Answers

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Home Theater System Is Displaying "Protection" spacer.gif As soon as the unit is turned on, the word "PROTECTION" will flash on the front panel of the unit and SHUT OFF. This error message usually indicates that the fan in the back of the unit is not on.

The PROTECTION feature automatically shuts down the unit to avoid further damage. The unit will need service if this error message is displayed.

Please use our ASC Locator to find your nearest Authorized Service Center

from samsung's web

http://www.samsung.com/au/support/faqs/supportFaqList.do?group=&type=hometheatre&subtype=hometheatresystems&model_nm=HT-Z110&dType=D&mType=UM&vType=R&prd_ia_cd=03030100&acc_ia_fl=&disp_nm=HT-Z110&menu=faqs

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Try a hard reset: unplug from power source, remove all cabling and wait for 5 minutes before recabling.

If that fails, it is a logic board error, in which case you are probably better off buying a new device..

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It sounds to me like it is overloaded and won't come back on because it has overload protection. Check your connections and make sure the outlet or power strip it's plugged into isn't overloaded. I would disconnect everything from it and turn the volume all the way down and try to get it to come back on. Let me know what happens.

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See my post "HT-DB120 - PROTECTION due to shorted output stage "

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