RCA LCD TV picture is flickering - RCA L37WD12 37 in. LCD HDTV

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.


LCD TV Repair No Power Power Supply Common Symptoms Solutions How to...

Fault with the main power supply regulator 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. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
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.

Is it hooked up with HDMI cable?

If so try unplugging the HDMI cable and re plugging the cable in, sometimes those cables work loose and if they are not tight, it will cause your screen to flicker. Happens to my TV once in awhile.

I’m happy to assist further over the phone at https://www.6ya.com/expert/robert_54ae41aaaffbab00

If its flickering on and off( loss of picture) it could be solder related to the inverter. If the pic stays and the set just flickers lines in the pic then I would think its the LVDs cable to the tcon or the connecters from the Tcon to the LCD panel.

If the picture on your TV flickers, there may be a simple fix. Here are some possible answers and suggested solutions:

1. Your set-top box may need a simple reboot. Unplug the power connection to the set-top box for about 30 seconds. Reconnect the power and turn the set-top box back on.

2. Check all of your cables for a loose connection by tightening each one with your fingers.Flickers can sometimes be caused by bends in rigid cables, too.

3. If your picture flickers to a black or blue screen, you could have a bad set-top box. Contact your cable or satellite service provider about installing a new one.

4. If you still have audio, the flickering could also mean that you have a failing backlight.

For additional troubleshooting information, check out the chart at TV flickering for more solutions. I hope this helps!

I'm sorry that the picture on the TV has constant flickering. Please follow the troubleshooting steps and check the operation:

• Please make sure that the connections are secure and proper.
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• Try connecting a different video source like DVD player or VCR and check the operation. If it works with another device, the issue might be with the input device currently.
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• Also try connecting the device to a different port in the TV if no other devices are available.
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• If the issue persists, try with a different cable.
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• Perform a power resetting and check the operation. To perform the power resetting, unplug the TV from wall outlet for more than 2 minutes and then reconnect it.

Thanks for understanding. Please let me know if you require any clarifications/additional help.

hi lildruiz!

That flickering sound is cause of your bad capacitors. Please fix it as soon as possible because it can cause much bigger damage. Here are steps to solve your problem.

Step1: Unscrew it to open the back cover of your TV.
Step2: Find/look at the location of your capacitors.
Step3: Look at the actual image of the capacitors, determine if it has bulged.
Step4: when determined, replace it for the same type,rate, & value.
Step5: when done, you can now test it.

Then come back again for the result. Thank you and hope to help you.

No.Tries unplug,replug the tv an hour later,that a reset the tv back to factory setting.The tv turn on now,have a picture flicker only a few sec.than dies,have sound left only?Yes,than the 1 or 2 long boards on the tv that call the LCD inverter boards are dead.These 1 or 2 long LCD inverter boards help the LCD screen panel to have a backlight to produced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy those refurbishes 1 or 2 long LCD inverter boards for the replacement.

you need to remove main ckt, (m.board) some part need to re solder specially in hot area. (lost contact i one of the flickering problem you encountered.

Your tv has a video problem, leak capacitor in video section, near in flyback need to replace it.