Question about Samsung LE40R72BDX 40 in. HD-Ready LCD Television

1 Answer

Samsung le40r74bd LCD TV


please can any one help me, I am looking for the power and control board for the TV.

The TV power on light comes on but the TV doesnt come on, so I gave a repair guy, who I suspect has messed it up completely.

So I think the best thing is just to change the boards completely, but where do I find it need new control board for samsung le40r74bd tv

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.

    Night Owl:

    An expert who has answered 10 or more questions between 12 midnight and 6am on the same day.

  • Expert
  • 191 Answers

Hi is the power still coming on? if yes no need for power . have u put anntenal & change the chanels b4 then to see if sound will come .if ye s its yuor backlight inverter u can also disconet ur inverter plug & power on  the tv & change channels if works change ur inverter if dead change your ad or mainboard .
for replacement , lcd parts .com. will help

Posted on Nov 10, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Hi there I have a jvc tv 'LT-42X788' when I power on the cbc sign comes on I here a click and screen shuts of there's a blue light that came on when I power on it stays on any help thanks

@Thomas Scissons
"JVC LT-42X788 display fault..."

Hi Thomas.

Please pick one:

Power supply board (possibly a blown capacitor):
A TV-tech can repair at reasonable cost, less than a new set.

The main board itself has a control / display section fault:
A TV-tech can repair at reasonable cost, less than a new set.

The screen / panel is shot:
Beyond economical repair - renew set.

Hope this helps.

Oct 16, 2017 | JVC Televison & Video

1 Answer

BUSH 42" plasma no picture or sound?

You have a power supply problem, replace the Module.
What you ear is a click relay No juice to activate the relay
Some cups may be dried.

Nov 01, 2012 | Bush Furniture Bush My Space Rhea 42 in....

1 Answer

Tv isnt coming on but is getting power


Thanks for using FixYa. From what you have described it seems the issue is with the power board or the main board and we’ll need to check few things. When you open the unit up; take a look at the power board-the board where the power cords/plugs goes into. You might see some filter capacitors a little bulged up in the top-If this is the case-this is your defective part(you can try to replace them-but some soldering equipment is needed). If not, then probably the main board has gone bad. This is the other board-where all the inputs are going into. All this is only recommended if you have electrical expertise and know how to solder/re-solder components. Please note that the TV components consists high voltages even when in off position. Please do accept the solution if the issue is resolved or else revert for further assistance.


Apr 18, 2010 | Olevia LT42HVi 42 in. LCD Television

3 Answers

The TV (Dynex DX-LCD32) will not come on. The

I have a DX LVD33 power light is red and no picture or sound screen is black. Please advise.

Dec 25, 2009 | Dynex 32 in. LCD Flat-Panel HDTV

1 Answer

Polaroid tlx-3210b tv will not turn on the red light comes on and the blue light comes on when you hit the power button but still no picture or sound have to unplug tv to turn off blue light. contacted...

Symptom shows that Mani Board is bad in your TLX-03210B Polaroid TV and need to be replaced. I do not see problem of capacitors in power supply board. Problem seems in system control section of TV that is located on main board.
Click Shop Jimmy as it is best source to obtain boards of LCD TVs.
Please call Shop Jimmy for main board availability as currently its out of stock.

Hit "add a comment" button for further query / info.

Apr 30, 2009 | Televison & Video

1 Answer

Wharfedale LCD3210AF

dose any 1 now how to fix this problem, i turn on my tv the light is just BLUE, the red light aint showing

Jul 10, 2008 | Televison & Video

2 Answers

Philips HDTV wont turn on

If your model number is 60PP9202 you dont have a bulb, you have three CRT picture tubes instead, and if the power light doesnt come on check the fuse on the power board. Remove the rear cover after unplugging the cord and look at the small board on the irght where the power cord attaches you will see a fuse its most likely blown.

Jun 27, 2008 | Philips 60PP9202 60" Rear Projection...

2 Answers

Tv wont switch on

Hi Johnpb54,

May i know, what's your lcd tv brand and model? When the light change to red color, is it a steady light or blinking light? Or you need more info on repair lcd tv, please visit this site .It may be can help you solve the tv problem.

May 09, 2008 | Televison & Video

2 Answers

On and off and on again

You have a power supply problem, it is in standby . Replace powersupply board or fix it.

Nov 26, 2007 | Vizio P2 42 in. HD-Ready Plasma Television

Not finding what you are looking for?
Samsung LE40R72BDX 40 in. HD-Ready LCD Television Logo

338 people viewed this question

Ask a Question

Usually answered in minutes!

Top Samsung Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74999 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Jerry Greenberg
Jerry Greenberg

Level 3 Expert

1689 Answers

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

Answer questions

Manuals & User Guides