Question about Televison & Video

2 Answers

42" LG TV, got a

Posted by on

  • 8 more comments 
  • janinparadis May 28, 2011

    No, I have nothing. the lights inside come on but there is no connection to tv

  • janinparadis May 28, 2011

    I'll try this and get back to you asap, thanks

  • janinparadis Jun 08, 2011

    This did not work

  • janinparadis Jun 08, 2011

    This did not work.

  • janinparadis Jun 08, 2011

    the voltage coming from the power brd to the main brd is at 4.9 and 11.7 and were there soposit to be 25 there is 18.7

  • janinparadis Jun 08, 2011

    there is no sound nor light on the tv

  • janinparadis Jun 08, 2011

    sorry but there is no sound and no back light

  • janinparadis Jun 08, 2011

    sorry but dont understand ,what do we chech for now nowing what we do at this point ,do we conseder that we have a bad main board ???

  • janinparadis Jun 08, 2011

    So I need to buy a new main signal board? Any idea how much that will cost?

  • janinparadis Jun 08, 2011

    OK, so you think this will really do it? I've already spent over $350 for parts and this darn thing.

    Thanks

×

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 1,238 Answers

Good day!

I need to know if you have back light?
or sounds?

Posted on May 29, 2011

  • bonifacio gomez
    bonifacio gomez May 29, 2011

    you have to do is check the input voltage of main board the comes from the power it should have 5vdc,12vdc using multimeter ( range on DC).

    if you don't have it,since your power supply is new so you have to check the wire continuity (range in ohms)

    If your have a voltage input in main board,the problem could be on main board.

  • bonifacio gomez
    bonifacio gomez May 29, 2011

    OK try this and good luck.

×

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 373 Answers

If you still have sound then you have a bad inverter board..do a search with the model number to find the part Ebay, www.shopjimmy.com or google.

Posted on May 28, 2011

  • 3 more comments 
  • TV Doctor
    TV Doctor May 28, 2011

    I have made the mistake before of not plugging up the connections all the way. This is a possibility. My suggestion is to recheck them. And if the light you are referring to is the backlight that is showing and not the led lights on the front then you have a bad main board...the one with all the connections to the outside..(cable connection etc)

  • TV Doctor
    TV Doctor Jun 08, 2011

    Since you have changed the power supply and you have sound (voice) when you turn the TV on then you must have a bad inverter board...this lights up the back light. Also possible is the main signal board which contains the video processing. If you have backlight then it is the main signal board bad and the video is not processing in that board.

  • TV Doctor
    TV Doctor Jun 08, 2011

    The main signal board can cause the set to have no backlight and no sound with the LED (indicator light on the front) coming on when pressing the on button.

  • TV Doctor
    TV Doctor Jun 08, 2011

    Let's recap: Your indicator is coming on when you press the power button but you have no sound or picture and the screen is not lighting up as well. You have changed the power supply and key controller boards and your indicator show coming on but as I said not picture or sound. Then the obvious problem is the main signal board. (Usually the inverter when it has a problem the TV will have sound and no light).

  • TV Doctor
    TV Doctor Jun 08, 2011

    Do a search on Ebay or Shopjimmy.com or Google with your model number. Match up the number with the board you have and the picture...especially the number

×

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
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.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Connecting - flashes 3 times - picture & sound come on - flashes 2 times and turns off - won't stay on


COULD BE A SHORT IN THE POWER SUPPLY IF YOU ARE NOT A TECH THEN HAVE A TECH REPAIR YOUR TV.GOOD LUCK.

Oct 06, 2011 | LG 42LC2D 42 in. LCD HDTV

2 Answers

My tv doesn't stay on - i plug it in & turn it on but a blue screen comes on & in 5 seconds the tv shuts off & the power button red lite just blinks


I think theres a problem in the power supply of your televesions.If the power supply heve leak or shorted parts at the circuit,it may shut off and not continous to power on.So it better to repair and trouble shoot the power supply.

Jul 07, 2011 | Televison & Video

1 Answer

TV will not turn on, red stand-by light blinks a few times, then stops and stays red. this is the result whetherus in the remote or the button on the TV. (47" LCD) Had for less than a year.


Hello,
The power supply board is dead, u know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.


I hope this will help in solving the problem, also do take care in handling the fault....

Jun 20, 2011 | LG 47LG70 42 in. LCD TV

1 Answer

Vizio VO420E 42 in. LCD TV -- Less than 3 months old. Picture slowly darkens and then goes out all the way. Sound stays on. Picture goes out. We turn the TV & cable box off, wait 30 seconds, turn...


the problem its the main board of the tv not the power supply board.the main one controls all your imputs tv av component etc the cheapest place to find it its at www.shopjimmy.com cheaper than the manufacturer and those dudes that you find online that charge an arm and a leg just to come and just repair your old main board mine as well buy a new one at this site for less ok and you are welcome

Apr 13, 2010 | Vizio VO420E 42 in. LCD TV

1 Answer

Power problems


Power supply board is dead.Replaced the power supply board will solved this problems.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Apr 01, 2010 | LG 42LC2D 42 in. LCD HDTV

1 Answer

LG 42 plasma power problem


needs power supply Part number 6709900023A
it is a 171 dollar part, you should be able to order through LG,

Jan 09, 2009 | LG 42PC3D 42 in. Plasma Television

Not finding what you are looking for?
Televison & Video Logo

Related Topics:

54 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

73647 Answers

Cindy Wells

Level 3 Expert

5058 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

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

Answer questions

Manuals & User Guides

Loading...