Question about Samsung LN52A750 52" HDTV LCD TV

Open Question

Wont stay on

Tv turns on ands off continually by itself picture never comes on

Posted by on

  • panshine Feb 08, 2009

    deawoo TV keeps turning itself off and on, 2 weeks out of manuf warranyt

×

2 Suggested Answers

  • 122 Answers

SOURCE: wont turn on

sometimes a new lcd t-con board solves the problem if the power supply is ok

Posted on Mar 09, 2010

budmrtn
  • 11361 Answers

SOURCE: We turn on the TV but no picture comes up. The TV

You may have problem due to unstable power supply due to bad DC filter caps, or short circuits in the backlight inverter board that caused the power supply to go into the shutdown mode, those are the two areas to check. You can try disconnecting the inverter board from the power supply to see if other functions of the TV will come back.
If you are going to DIY and have proper tools, knowledge of electronics and know safety precaution then please read on:
Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com

Posted on Jul 14, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

I have a 60" Samsung led TV. Model number UN60EH6003F/type UN60EH6003. The TV turns on but doesn't show a picture. You can see the screen light up but stays a black background. Which board is bad?


well 1st before id go changing any parts I look at weather or not the input is selected correctly over to the input that im providing a known good picture signal with (antenna,cablebox,etc.), you'd be surprised how many times I get a call and I go and use the input select buttons on set itself (NOT REMOTE) and whhoolaaaa! there it is , of course I always hear next I didn't change that !!
a short comings of todays modern TV's if you arnt having any signal into it ,the screen is black and the set-up menu wont display on a black screen

Oct 27, 2015 | Samsung Flat Panel Televisions

1 Answer

Samsung LN-T4071F picture starts clear, then gets grainy as the TV stay on.


I have samsung TV 40 inches flat screen comes on the picture ok but within 10 minutes the picture goes black and white

Jan 20, 2013 | Samsung LN-T4061F 40 in. LCD HDTV

1 Answer

Samsung plasma won't turn on


Here's is what you need to look for when describing a problem for troubleshooting purposes:

0) What model is the TV (you've covered that)

1) Does the TV respond to command to turn on?
(yes - continue; no - 70% bad power, 30% bad main board)

2) Once it responds (clicks), does a front LED or other indication show that it turns on? It's OK if there's no display.

(that can be model specific and is not certain indication for anything until known what is specific for the model)

3) If such an indication comes up does it remain on until you act or does it go off by itself?
(Stays on - power supply likely good; turns off - power supply *may* be good, but not certain)

4) If the power indication stays on by itself can you make it go off by pressing the power button or do you have to disconnect from AC power?
(responds to power off - 90% power supply likely OK and 90% OK main board; does not respond to power off - 90% bad main board)

Here is a link for test/repair of the power supply of your TV, hope it would help:

http://www.coppelltvrepair.com/p/895/samsung-pn58a550s1fxza-power-supply-repair-service-for-dead-or-clicking-on-and-off-problem

Dec 22, 2012 | Samsung PN58A550S Plasma TV

1 Answer

When I turn on TV, it immediately turns itself off. Previously if I continued to turn it on it would eventually stay on, but now it will not stay on.


I had this problem with my JVC TV. Turns out that some gunk had built up in and around the power button itself. I took a toothpick and a cotton swab with alcohol and cleaned around and between the the power button. Hope it works for you too.

Oct 03, 2011 | LG 60PC1DC 60 in. Plasma HDTV

1 Answer

I have a vizio e320va that when turned on the backlight flickers repeatedly with picture in and out then starts blinking with vertical lines then the screen goes black and the power stays on, This is all...


The tv is having a problems with the board called T-Con board it is dying and the problems.That why the tv is not sustancening the tv pictures for those coded pictures pixels by the T-Con board to stay on to the tv LCD screen panel.This tv problems only causes by the tv T-Con board it is dying only if the tv problems came on to the tv by itself only.If these problems causes by u or an object by outer forces by hitting to the tv LCD screen panel itself.Now the tv LCD screen panel itself it is dying and the causes.Than the tv it is not repairable,tv now only can it to do a replacement of the tv whole LCD screen panel itself only.Not practical because the tv LCD screen panel are 90% important to the tv and the cost of the tv.If u replacing the tv LCD screen panel itself will cost the same as a new tv.The tv is under a year old,why don't u just call Vizio corp. and take ur tv warrenty repair.

Sep 26, 2011 | Vizio E320VA 32 in. LCD HDTV

1 Answer

Picture goes off..sound stays on


Make sure the cooling to the TV is not blocked. It is on all the time even when off. Some of the spply cucuits remain on continuously. try uplugging the unit. Let it cool. If it is an older TV the back lighting may be dieing, then it is Tech. time

Mar 25, 2010 | Sharp Aquos LC-42D62U 42 in. LCD HDTV

4 Answers

42" Plasma TV Problem


same frustrating symptoms on brand new 42inch here! tv just turns itself off sometimes without warning or if changing to certain channels. leaves red light flashing for a while then red light goes away. any attempts with remote gives flashing green liht on tv. manual power off and on restarts tv but auto off again. found while manual power on keep changing channel on remote till stable picture appears. then use remote to shut down tv - solid red light indicates standby mode. then use remote to turn on again... till next time it happens. but what is technical fault??

Aug 18, 2007 | Panasonic VIERA TH-65PV500 65 in. Plasma...

Not finding what you are looking for?
Samsung LN52A750 52" HDTV LCD TV Logo

Related Topics:

44 people viewed this question

Ask a Question

Usually answered in minutes!

Top Samsung Flat Panel Televisions Experts

xxxxxx xxx

Level 3 Expert

4706 Answers

Steve McIntosh

Level 1 Expert

11 Answers

Boo to u

Level 1 Expert

28 Answers

Are you a Samsung Flat Panel Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...