Question about Samsung HT-X40 System

1 Answer

The system keeps saying protected and turning off,

Where can I get a
Samsung AH41-01031B Printed Circuit Board

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  • jeff_n_76117 May 03, 2010

    How can I find out if there is a recall on this model all parts stores tell me this part was discontinued.

  • jeff_n_76117 May 03, 2010

    I am not much into working on the boards but thought it was one of the transistors...but not sure where to buy them.

  • jeff_n_76117 May 03, 2010

    I am not much into working on the boards but thought it was one of the transistors...but not sure where to buy them.

  • jeff_n_76117 May 04, 2010

    I am not much into working on the boards but thought it was one of the transistors...but not sure where to buy them.

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  • 70 Answers

I am unsure of where to find this board but try ebay. as of today a replacement unit is 139.00 plus shipping. The board can be repaired, The problem is most likely a bad transistor. In some cases components surrounding the transistor will go bad also. If you can solder remove the transistors one by one until the protect mode goes away. Read the numbers off the part and type them into a search and order replacements. install the replacements and check for good audio out. Hope this helps.

Posted on May 03, 2010

  • Dan  Larson
    Dan Larson May 03, 2010

    digikey.com Mouser.com MCMelectronics.com are the ones i use mostly. Hope that helps.

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1 Answer

Sanyo tv model dp50747 keeps shutting off automatically


Short circuited PCB inside it. Any one printed circuit board will have short circuited component/s; in turn draws tremendous current during switch-On, and the short circuit protection circuit inside the TV activates, and shuts it down, is happening now. Contact any service technician, or authorized service centre for Panasonic. This is not a user repairable fault.
If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/

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When i turn on my cinema system 'Protection' come's up then it turns off. Help please


Its the ic audio amp board.......disconect the board and u will see the power turns on.....i have the same problem .......cant be repaired the cost is to expensive....i have put 2 fan on the ic board it keeps the unit cold and can play it about 5 hours daily
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1 Answer

My unit keeps saying protection after 5 seconds of being on. What can I do?


Take it to a repair shop. The output transistors may have shorted and need to be replaced or there is something shorting out the power supply - the protection circuit activates to prevent a fire or spark in the unit.

Oct 28, 2010 | Samsung HT-X40 System

1 Answer

It keeps going to protection mode and shutting off


sounds like Something is hooked up backwards or voltage is wrong and it's over heating

1. make sure all the speaker pos/neg connections are attached properly as instructed.

2. make sure all voltage selector is set to 120V not 220v

3. try playing with no speakers and add just one speaker at a time (power off with each addition)

4. check the fan on the PSC (printed circuit board) - inherant problem

5. if the above don't work and it's under warranty return it immediately for a replacement

6. if not make sure cooling fan is working and dust free - sometimes flipping or turning it around does the trick this is a design flaw

Aug 24, 2010 | Samsung HT-X40 System

1 Answer

Power switch wont turn on,keeps clicking


The fault is not a relay, the clicking sound is just the protection circuit that prevents the TV from starting because a fault had been detected.

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.


May 21, 2009 | Samsung Televison & Video

1 Answer

I have a samsung home theater system HT-X70. After 10 to 15 minutes the word protection scrolls across the screen then goodbye and finally the unit shuts itself off.


ther is dc voltage applying your speakers by amplifire itself and turn on speaker protection circuit itself.
it can be happens because
1.loose connection in amplifire board
2.faulty output section of amplifire
3.short circuit of speakers
4.error detecting circuit faulty.
if youcan open the cover and clean the circuit for dust and resolder the circuit with 30 W soldering iron cairfully.if you want the more asistence please come again
ican hlp you more.

Jan 08, 2009 | Samsung HT-WX70 Theater System

1 Answer

System turns off automatically


loose connection of the printed circuit board.

Dec 22, 2008 | Samsung HT-WX70 Theater System

1 Answer

Tsl3293hf samsung tv


The TV is on protect mode. The clicking sound is the protection switch that keep turning the TV off to prevent further damage, this happens when a fault had been detected.

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.

If you want to DIY you find parts here,

Appliance parts, electronics parts & more from PartStore.com

Encompass Parts Distribution

Electronic Replacement Parts: Plasma & LCD TVs, Appliances |

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4 Answers

Samsung Home Theatre "Protection Error"


i've had a similar problem where the fan stopped moving and the system gave the usual "protect" error. i think the IC's burned out on the amp board since the error was no longer there when i unplugged it. i ordered a new board off ebey for $25 shipped. make sure this is the problem by unplugging both the power and data cables from the amp circuit (the board with the big heatsink) and starting it. if it says starts normally then the problem is the amp circuit

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You will need to get a service manual and trouble shoot what amp. circuit is defective. if you have no solid state printed circuit board experience, you really should take this unit in to a repair shop and have it estimated. There is no quick fix for this unit. Good Luck.

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