Panasonic TH-L42U20S Full HD 42 inch Multi-System LCD TV - Answered Questions & Fixed issues

Please never do any more experiments with software [firmware] with this set. Contact the authorized service centre for Panasonic. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. Surf the site with patience. http://electronicshelponline.blogspot.com/ Pull up older posts there.

Not totally sure what your asking but I think your saying your LED lamps aren't working, if that's the case replace them

You either have a bad Main board or simply a bad touch control button in other word one of your side buttons is defective and it is blocking any other signal to the main board, but usually its a bad main board. In some cases ther is a FIRMWARE update from Panasonic, you may want to call Panasonic or check there website for any type of FIRMWArE UPDATE.

These blinks (flashes) are fault indication. By the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit stage inside the TV. Count the blinks occur at one time switch ON, carefully. Do it once again, and make sure about the number of blinks. If the flashes are continious, non-stop, the main system control IC should be suspected. If you wish to get more details, check the site linked here. It has blinking codes detail to many brand TVs. Pull up older posts. Check the site in 'Mosaic' view. It will make search easy. http://electronicshelponline.blogspot.com/

These blinks (flashes) are fault indication. By the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit stage inside the TV. Count the blinks occur at one time switch ON, carefully. Do it once again, and make sure about the number of blinks. If the flashes are continious, non-stop, the main system control IC should be suspected. If you wish to get more details, check the site linked here. It has blinking codes detail to many brand TVs. Pull up older posts. http://electronicshelponline.blogspot.com/ Check the site in 'Mosaic' view. It will make search easy.

Check the signal cable, resolution of the source and input mode of the TV.

Try disconnecting all of your HDMI cables and plugging the power cord of the TV into another wall outlet. If this resolves the issue, you may have had a small power surge from either your wall outlet or one of your source devices. It is recommended to connect your TV to a surge protector if you haven't done so already.

On the side of the TV there should be a button that says "MENU"

Hank, go to manual owl.com and you can download your manual if you have the prooer Adobe program to download and read the files. If you dont it looks like the site will let you do it righr there. Hope this helps and Hapoy St. Pats! Tom

use this chart to help isolate the problem

It will be better to replace the power regulator board to LCD TVs rather than trying to repair it. The repair charge and components cost might sometimes exceed than the price of a new one.

What is the exact model number of your Panasonic TV? Visit the site named 'Electro-help' for more details. Click this link. View it in 'Flip card' option, which can be selected from the drop down box menu by the [Sidebar] tag, at the top left corner of the display window. It will make search easy. There are more than 900 posts to different brand TVs now.If you do not get any solution by this site too, inform me by Fixya. I'll try to help you. OK?

thats usually caused by a blown thermal fuse on the transformer and the 10 blinks appears. I can assist but will need to do it via email you can contact me at [email protected]

check for swolon capacitor in power supply or try to go in service mode and reset tv by pressing vol_ on tv and press recall button continious from remote tv will go to service mode then press vol_ on tv and ok from remote hold ok untill tv reset then unplug and turn on again.

This is not an easy job, you need lots of space, time and patience, You need to remove the back of the tv and then you need to remove all the screws around the outside that hold the front on, You need to disconnect the speakers and front panel controls in order to remove the panel from the front bezel, Then you will see how the protective glass attaches, allow 1-2 hours and be slow and keep track of where everything goes, also be careful not to damage the circuit boards and be cautions as the boards can store high voltage.

the common problem on that symptoms is leak/bulged capacitors on the power supply board..try to replace it to get back the excellent quality of your TV..regards.chester

1. Check the Power Cord: Ensure that the power cord is securely plugged into both the TV and the power outlet. Make sure there are no visible signs of damage to the power cord or the plug.
2. Inspect the Power Outlet: Try plugging another electronic device (such as a lamp or a phone charger) into the same outlet to verify if it is functioning properly. If other devices work fine, then the issue is likely not with the power outlet.
3. Check for Tripped Circuit Breakers: Check your circuit breaker or fuse box to see if a circuit breaker has been tripped or a fuse blown. If so, reset the circuit breaker or replace the fuse and try plugging in your TV again.
4. Test with Different Power Source: If possible, try plugging your TV into a different power source altogether, such as a different room or building. This will help determine if the issue is specific to the power source you were previously using.
5. Contact Panasonic Support: If none of the above steps resolve the issue and your TV still does not power on, it's likely that there is a hardware problem with the TV itself. In this case, you may need to contact Panasonic customer support for further assistance or to arrange for repairs. Be sure to provide them with details of the troubleshooting steps you've already taken.

Hope this helps

1. Check the Input Source: Make sure you have selected the correct input source on your TV for the device you are using. Use the remote control to cycle through the input options until you find the one connected to your video source.
2. Check Video Connections: Ensure that all video cables (such as HDMI, component, or composite cables) are securely connected between your TV and the device you are trying to watch content from. A loose or faulty cable connection could result in a loss of video signal.
3. Restart the TV and Video Source: Try restarting both your TV and the device you are trying to watch content from. Power off both devices, wait a few moments, and then power them back on. This can sometimes resolve temporary glitches or issues with the video signal.
4. Check for Software Updates: Make sure your TV's firmware is up-to-date. Sometimes software updates can resolve compatibility issues or bugs that may be affecting video playback. Check the settings menu on your TV for an option to update the firmware, or visit the manufacturer's website for instructions on how to do so.
5. Reset Video Settings: If you've made any changes to your TV's video settings, such as resolution or picture mode, try resetting them to their default values. This can sometimes resolve issues with video playback.
6. Try a Different Device: If possible, try connecting a different device (such as a DVD player or gaming console) to your TV to see if the issue persists. This can help determine whether the problem lies with the TV itself or with the original device you were using.
7. Contact Panasonic Support: If none of the above steps resolve the issue, it's possible there may be a hardware problem with your TV. In this case, you may need to contact Panasonic customer support for further assistance or to schedule a repair.
8. Hope this helps

Question edited for a lot more clarity. In the link https://www.google.com/search?q=panasonic+th-42pv8d+blinks+2+times ..

Unfortunately there isn't one. The workaround is to change the Router Password or SSID to remove the plus + for something else.

need to input the plus sign for wifipassword XXXXX my ...

JustAnswer https://www.justanswer.com > Network Experts Apr 6, 2014 - How do i type the plus sign for my wifi password on my panasonic viera remote? I also need to input the "+" sign. - Answered by a verified 1 answer · Top answer: Okay, great. Go to Network settings on your tv menu> select Wireless ne https://www.google.com/search?q=Panasonic+remote+plus+symbol ..