When I turn the unit on it displays the message "Hello", then is displays the current function like "DVD/CD" then it says "Protection" and then is shuts down. It is a Samsung DVD Home Theater System HT-X40

Check your engine oil using the oil dipstick located on the engine - you need to add oil to the fill line as shown on the dipstick. You should have the oil replaced regularly (every 3-6 months) and keep your eye on the level if the engine is leaking oil underneath or burning a lot of it.

If the protect function works and causes hindrance to trouble shoot, cancel the protection function as described below, and it will be possible to enter the self-diagnostic function mode. (The protection functions other than the excess current dtect function will be disabled.)

While pressing the "Tone Control" and "Info" keys, press the "Power" key to turn on the power and keep pressing those 2 keys for 3 seconds longer.

The seld-diagnostic function mode is activated with the protection functions disabled.

In this mode, the "Sleep" segment of the Flourescent Display flashes to indicate that the mode is self-diagnostic function mode with the protection functions disabled.

Caution!!!! Usiong this product with the protection function disabled may cause further damage to your unit, so use special care when using this mode.

what kind of CD/DVD-ROM are you using? Sometimes the CD are protected and cannot be played with every ROM. and also try playing another CD/DVD to study if it would do the same.About opening the CD/DVD-ROM if it is still not opening get an office-pin and push it into the small visible hole on the CD/DVD-ROM

hello Setting the disc ejection lock
You can lock the disc tray to prevent the disc form
being ejected.
When the main unit is turned off, hold down the STOP
key at the front panel for 5 seconds
If you attempt to open the disc tray by pressing
OPEN/CLOSE key, the disc tray does not open and
“LOCKED” appears in the display window.
To cancel the disc ejection lock, hold down the STOP
key at the front panel for 5 seconds again when the
main unit is turned off.
“UNLOCKED” is displayed in the display window.
Note:
Before the main unit is turned off, DVD/CD function
should be selected.

hi,i have an lg 389h dvd recorder,it just says hello scrolling across the display,and doesnt respond to any functions on the,remote control,any ideas,cheers.

First thing to do is disconnect all your speakers at the back of the receiver, then turn it back on. If it does not go into protection, post a comment and I can walk you thru troubleshooting. If it still goes into protection, your unit needs to be serviced. Hope this helps

protection error message means that your unit's fan is not working

it is a feature to keep your unit from overheating

check if there is anything blocking the fan of your unit from rotation or replace the fan

Home Theater System Is Displaying "Protection" 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

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..

Hello,
Protection mode on a Samsung player most likely means that the unit is overheating due to a non or low functioning fan. Before taking it somewhere to be serviced turn the unit on and see if the fan in the back is functioning (it should be on whenever the unit is on). If it is not you can try gently blowing it out with a can of compressed air.
I am sure that you can have it serviced but it might be cheaper to purchase a new player.
Good luck and take Care,
-WN