Question about Televison & Video
If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
- Flickering screen
- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
Check the cables, connectors and connections.
Take it to a repair shop.
Posted on May 26, 2014
You have a component breaking down electrically, a dry joint on a circuit board or it needs a good cleaning of all the electrical parts. To fix the circuit board or components, you will have to take it to a TV repair store. But first, try cleaning it. Disconnect the electrical supply and take off the rear cover. Using a fiber dust remover or a vacuum cleaner, remove any build up of dust and hair from anywhere inside the TV, paying particular attention to the cooling fan intake and ducting. Be careful not to damage any fragile components .
Posted on Jun 22, 2009
SOURCE: LG 37LC7D
Do not keep forcing this unit on - - This particular unit has a VERY commonly known problem and there are at least five tech bulletins from LG explaining this and other symptoms for the failure. In a nutshell there are coils that have to be removed and replaced with a jumper wire. This is not a repair you want to tackle so please get some experienced help for this one. A good technician will look-up the bulletins and educate themselves on the manner of the repair.
Almost all of the symptoms that can happen are intermittent and can be extremely difficult to verify. For this reason make sure to discuss with the technician that he replace all of the coils listed in the bulletin not just the ones causing your particular problem. Here's a list of symptoms that these defective coils cause, taken right from the bulletin:
1. Channels Or Menu Functions Scroll On Their Own
2. Remote Does Not Function
3. Tv Randomly Powers On And Off On Its Own
5. No Backlight
Hope this helps!
William Rayburn, CET
Posted on Aug 03, 2009
When it shuts off does the power light stay on like the unit is still on?If yes,try shining a bright flashlight at the screen and see if you can see any video.If you can your power and main boards are ok.you would then probably need an inverter board or panel.If it is shutting completely off you need a main total assembly since you have already replaced the power supply.The main total assembly is avery common issue on lg lcd tv's.
Posted on Oct 15, 2009
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