Question about Samsung HLN4365W 43" Rear Projection HDTV-Ready Television

1 Answer

Tv shuts off

The tv is older. a friend gave it to me and said it worked. i hooked it up worked good for the first few days worked fine until the problem occurred. it started shutting off by itself. and it would only sometimes display the temp lamp and timer lights. they dont flicker they are on constant. wont turn the tv back on until you unplug it from the wall and plug it back in after letting it sit for a min. sometimes the tv wont do it again sometimes it does it every 20 mins to 6hrs. any ideas or tips?

Posted by Jared Clark on

  • Jared Clark Sep 23, 2013

    i believe the a/v slots went out. everytime i plug my ps3 into video 1 or video 2 the tv just shuts off. but leaving the a/v cord out the tv stays on. im gonna go out and by some digital cords for my ps3 and try the digital slots. will let ya know what happens.



1 Answer

The Knight

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.


    An expert that got 20 achievements.


    An expert that got 10 achievements.

  • Samsung Master
  • 76,466 Answers

The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts.
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
Search the site by type in the "brand name" to your device; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts. .

Posted on May 25, 2017


4 Related Answers


Irwan Darmawan

  • 377 Answers

SOURCE: tv turns off after 45min to an hr

hi dear

it may be a power supply issue; if a tube (standard definition) then get of ck’d out but if it’s an HD of any kind it may be the resolution setting due to the fact that DVD players are essentially sending a standard def signal 480p while the monitor is looking for a High Def signal 720p or 1080i or 1080p are the three main settings; as metioned previously disconnect the sources (player decks)?and see if the monitor turns in then un the settings you can check the resolution


It is the protection circuit cutting in and shutting off the set. This is because it detected a short or near-short circuit somewhere within the 8 or 10 sections of the set. Most common is high voltage, deflection amplifiers and main power supply.

You must know how to troubleshoot the circuit and systems in order to repair these kinds of set. You can get lucky, sometimes, by just probing around looking for something that does not look right.

If you are an electronics technician with some good skills I can give you better advice, but if not, you are better off seeking professionial help.

If you want more assistance, I must know the model number and the age of the set. Then I can give you some further ideas.

Also, Allan Wainwright, one of the best allexperts, is good at guiding you on these kinds of things.

Finally, if the set is over 3 or 4 years of age it is not a good candidate for repairs. Why? because it will just fail again, and again, and soon you will have spent so much time and aggravation you will have wished to have cut the losses and just replace it. Sorry, but that is the nature of tv sets once they start to fail.

Posted on Mar 26, 2008



  • 184 Answers

SOURCE: picture works normal for 10 ses then turns off. (3 blinking light

Re-position the safety switch behind the lamp door and if still the same try replacing the lamp.

Posted on May 27, 2009

Chi Chu

  • 8457 Answers

SOURCE: tv makes buzzing noise then picture fades and eventualy shuts off

Ur colors wheel is dead,must call tech.for this is very difficult to take out,and replaced have no tv tech. experience.Best to call tv shop service,to replaced this colors wheel,and have warrenty on it.

Posted on Jan 11, 2010

Chi Chu

  • 8457 Answers

SOURCE: My Samsung HLS4666WX TV has started shutting

The lamp in the tv been in use about 1 1/2 or 2 years,the tv on about 4 or 5 hours a day?The lamp life span is over.Replaced the lamp.

Posted on May 31, 2010

Add Your Answer


Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I have a RCA used tv ,hooked up the cable ,did the

Main system control memory IC fault. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience.

Sep 28, 2014 | Televison & Video

1 Answer

My picture display is narrow and does not cover the screen.

Does the Genie box have screen settings in in? Sometimes hd will show in smaller screens. Makes the picture nicer. If you adjust the screen size with your remote the high definition "niceness" will not be there.

Jul 30, 2014 | Seiki Televison & Video

1 Answer

I have a westinghouse LCD model EW37S5KW unit. box.

What do you mean by primary color? can you attach a picture plz?

The problem you are talking about is most likly the panel.

Jan 08, 2014 | Westinghouse Televison & Video

1 Answer

I have a JVC model HD-52G886 tv. that loses sound.

Replace or have replaced the Audio board in the set----a lot of them fail.

Mar 12, 2012 | JVC HD-52G786 52" Rear Projection HDTV

1 Answer

Screen is black and no sound , system worked fine on the other tv but when i hooked it up at a friends house without the the hdmi cable i get nothing

You need to reset the video settings. With the PS3 off, press AND HOLD the power button down until it beeps several times and then shuts down. Once shut down, turn it on normally and it should come up w/ video.

May 07, 2010 | Sony Playstation 3 (PS3) Console

1 Answer

Tv won't turn on

good day sir, problem with your tv's switching power supply, at this point you have a choice of visiting/calling your service center, or do it your own? If you want to do it your own, you may need you dissassemble your tvs back panel, to have access to the circuit, locate the switching power supply section and test the following.
  • the switching power transistor usually with a heatsink.
  • the oscillator circuit, with a pulse width modulator IC that controls the switching.
  • the high speed power transformer.
  • the feedback circuit.
  • the capacitor and voltage regulator.
test all of them until you get the bad part. I don't want to sound technical, but thats how service centers do it. You may need to get schematics.

I suggest you call your service center, and let them do it.

Oct 02, 2009 | Toshiba 42H81 42" Rear Projection...

1 Answer

New Vizio tv shuts off after June switchover

Well, your TV is no doubt under warranty. The only reason I can thing of why they want you to use a DVD player is to find out if the Digital Tuner inside the TV is the source of the problem.
They need to replace the Digital tuner board or the main mother board. Either way, they have to come out to your house to replace a part.
Just keep hammering them of the warranty coverage.

Jun 27, 2009 | Vizio L32 32 in. LCD HDTV

3 Answers

Turns on then turns off

I had the same problem with my VS 45607,luckly I unplugged it for about 1 hour and tried it and thank God it's still working.

Jul 01, 2008 | Mitsubishi VS-45607 45" Rear Projection...

1 Answer

Sony trinitron XBR2 32 " can't seem to get the cable working on it

You can hook up to either aux or vhf not converter. then with remote use ant button to select the one you are connected to. then do the auto search. Also can you get to 3 by pushing 3 and ent on the remote?

May 18, 2008 | Televison & Video

Not finding what you are looking for?
Samsung HLN4365W 43" Rear Projection HDTV-Ready Television Logo

Related Topics:

45 people viewed this question

Ask a Question

Usually answered in minutes!

Top Samsung Televison & Video Experts

The Knight
The Knight

Level 3 Expert

76466 Answers

Muntejaya Ginting
Muntejaya Ginting

Level 3 Expert

10422 Answers


Level 3 Expert

513 Answers

Are you a Samsung Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides