Question about Samsung HT-X40 System

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Protection displayed and shuts off

When I press the power button Protection is displayed for a brief second and then the unit shuts down. Pressing power button does not do anything afterwards for a while. The fan works through that brief moment when Protection is displayed. protection displayed and shuts off. speakers are ok. purchased unit three days ago. wire connecton is ok. The stand by button blinks. i pressed the stop button for 5 seconds to stop the blinking, put the power back on, results are still the same, displaying protection and then the unit shuts down. I have the Samsung ht-x30 shutting down on protection. Initially 6 wks ago on occasions switch off without any apparent reason. it became more frequent shutting down on protection and then fan check. took it in for repair and new fan installed. brought it home and still shut off on protection. Took it back in to the repairer without the speakers and it would not do it for him so he believed it had something to do with a faulty speaker, gave him the speakers and still wouldn't shut of on him. brought it home and it lasted about an hour. I work for the electricity distributor and am aware of some voltage issues on the feeder that I live and had a recorder record over a four day period. Had fluctuations between 233V-256V which is slightly outside the allow-ables. The voltage situation has been there since I had purchased the unit. However I took the unit where there are different feeders and different power generation and the unit still shut down. It is becoming obvious that over time the circuitry breaks down. and becomes susceptible to overheating. Whilst the unit is sitting outside the shelf of the tv stand it will run for more extended periods, as was the case when it was at the repair shop. armed with some evidence from this forum I may get some where with the repairer. I have today reversed the fan and hope this resolves the problem. It is however sitting outside the shelf at this point in time. As the unit heats up the more frequent it shuts down. It has been running for about an hour now without shutting off. There was no evidence of capacitor burn out with my unit. Hope this helps.

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The solution is get rid of it fast , i had a samsung dvd player that did that then it caught on fire , pretty scary,lucky i was there when it started to smoke up

Posted on May 23, 2009

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Your HT problem can be different from mine, but still there is a chance of the same kind of failure. In my case one of the output filter capacitors got broken - it had a crack on its body. Replacement of the capacitor fixed the shutdown on protection. In principal the caps can fail without any visible indication and it would be very difficult to guess what is wrong without deep studying of the system. For details about my case you can check: http://craftsman-hambs.blogspot.com/2009/09/samsung-home-theater-ht-x40-shut-down.html

Posted on Sep 06, 2009

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Posted on Jan 02, 2017

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Screen froze


Hi Robert,

Please follow this...

  1. First of all, take your phone and press the power button; the select "power off".
  2. Wait while your phone is shutting down; wait a few seconds and then proceed.
  3. Now, press the volume down and power button at the same time for 2 or 3 seconds until the LG logo appears on the display.
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Tip

ERROR CODE AND SERVICE MODE


Service tool modeHow to access
1. Select [SRV-TOOL] in Service Mode.
2. Press [OK] button on the remote control.
Display of SOS History
SOS History (Number of LED blinking) indication. From left side; Last SOS, before Last, three occurrence before, 2nd occurrence after shipment, 1st occurrence after shipment.
This indication except 2nd and 1st occurrence after shipment will be cleared by [Self-check indication and forced to factory shipment setting].POWER ON TIME/COUNT
Note : To display TIME/COUNT menu, highlight position, then press MUTE for (3sec).
Time : Cumulative power on time, indicated hour : minute by decimal
Count : Number of ON times by decimal
Note : This indication will not be cleared by either of the self-checks or any other command.Exit
1. Disconnect the AC cord from wall outlet.
Hotel mode
1. Purpose
Restrict a function for hotels.
2. Access command to the Hotel mode setup menu In order to display the Hotel mode setup menu, please enter the following command(within 2 second).
[TV] : Vol. [Down] + [REMOTE] : INPUT (3 times)
Then, the Hotel mode setup menu is displayed.
3. To exit the Hotel mode setup menu Disconnect AC power cord from wall outlet.
Troubleshooting Guide
Use the self-check function to test the unit.
1. Checking the IIC bus lines
2. Power LED Blinking timingCheck of the IIC bus linesHow to access
Self-check indication only:
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote control for more than 3 seconds.
Self-check indication and forced to factory shipment setting:
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remote control for more than 3 seconds.
Exit
Disconnect the AC cord from wall outlet.
Power LED Blinking timing chart
1. Subject
Information of LED Flashing timing chart.
2. Contents
When an abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the defective block can be identified by the number of blinks of the Power LED on the front panel of the unit.

FOR MODE DETAILS CHECK THE FOLLOWING LINK

www.electro-medical.blogspot.com
google.com/+AjinGopakumar

USE SEARCH TAB TO FIND MODELS OR USE DROP DOWN MENU

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If the protect function works but is causing you problems, cancelling the protection function should help, and it will be possible to enter the self-diagnostic function mode. This should disable all functions of the protection mode, excluding the 'excess electrical current detection' feature.

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

this should activate the Self Diagnostic function, with your Protection Mode disabled.

in this mode the 'sleep' section on the tv's fluorescent display flashes to indicate that the mode is properly activated.

just be very aware, this function is normally there as a safety feature and i cant guarantee that disabling it altogether won't cause other problems down the road. best of luck!

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Help


Hi,

Take every single cable out of the unit, now power on the unit.

If the power protection still shows then there is an internal fault, usually a short or a component defect.

If it powers on ok, switch off and insert 1 speaker at a time and power on the unit until the protection mode comes on again, the last speaker you have put in has overloaded it for some reason, also as you are trying each speaker use the volume and bass controls to see if there is an internal overload.

Thats as much as I can offer you until you narrow the fault down to the unit or one of the speakers.

Cheers

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1 Answer

Protection displayed and shuts off


The protect message indicates that the output amp section has a problem. Normally this requires the replacement of the output transistors or the output amp pac. Expect the repair cost to be about $20-$60 for parts plus the local labor rate.
Dan

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2 Answers

Protection displayed and shuts off


Hey guys! Im glad you found my solution on my blog, and posted it here. I hope you ccan fix yours, or get it replaced on warranty. Im happy to help you with anything, the capacitors i think was 4,7 uF, 100volt, not sure. 
Here is the link to my solution: http://lemurt.wordpress.com/2008/08/18/defenition-of-waranty-void/
:D
/ lemurt

Mar 01, 2008 | Samsung HT-X40 System

4 Answers

Protection displayed and shuts off


are all the speakers good?? discont all the speakers and see if all the lites come on. Then shut off and start to connect one at a time untill the unit shuts down and then you know you have a shorted speaker. If the same thing happens you probably have a power supply or an output stage falure and this should be serviced by someone who is quilified to work on stereos

Apr 05, 2006 | Samsung HT-DB120 System

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