20 Most Recent LG 42PC3D 42 in. Plasma Television - Page 4 Questions & Answers

If you havent gotten the latest firmware downloaded on your set you need to call LG and have it done. Your problem is however you have a bad Partal Resonance Power Suppyly chip that is overheating and failing.

Four blinks indicates that there is some fault with its Power Supply Board {PSU}. 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. Some times, the ads attached with each posts, both at the right and bottom, might help you to find the availability of spare parts. There are more than 850 posts to different brand TVs now.

Fauts and rectifications to many brands of Plasmas are described here in detail. Almost all plasma TVs will have the same fault indications, as they are of the same circuit configuration. Only appearance and models will differ.

Ensure there are no loose contacts in RC Jack, cable, sockets. Try changing the input device to some other and see.

Subject says no sound but picture, but problem is mentioned is have sound and no picture. Which is correct? Anyhow try the following: Try changing the input device to something you are sure, works such as a DVD player. Look for any loose contacts in RC jacks/sockets/Cable.

Try changing the input device to something you are sure, works such as a DVD player. Look for any loose contacts in RC jacks/sockets/Cable.

its not a fuse,it's the tv light in the back , its in its own housing. you can purchase one on line and replace it yourself

If you follow the two post that are coming up from the stand there are tw screws on each post holding it to the tv.You can get get parts for this tv at www.interliquidparts.com

Sounds that the Tuner and Video IF section to your TV has the fault. Seek tech support. This is a highly skilled work.

Check and replace the Z-sustain board. It is really a skilled work. Seek tech support.

Visit this site for more details. Type in the site name "Electro-help" either to Google or Yahoo search box [not in the address bar of your browser], and click search. It is an electronic equipments service help site. All details you want are there. Note the position of hyphen in between words in site name, when you type it in. The site will appear as it is in web; subtitled as Service help to electronic home entertainment equipments.

Pull up older posts. You can get all details.

Site is listed with Google. You can locate it either at the bottom part of first search page, or at the top of second page.

Sometimes, one among the advertisements by the side and bottom of each post might help you to get details about the availability of spare parts and other components.

Your plasma TV has a power supply 6709900019A. These power supplies failed due to defective capacitors. See the picture below and check the capacitors mark with the red lines. There are 10 capacitors that should be replaced even if they do not show signs of bulging/swelling on top.
The value of the capacitors is 3300uF/10V but you can use 25 volts as long as they fit in the space provided by design.

Check the backlight inverter board. Repalce it.

Check its backlight inverter board. In most cases, this board has found damaged. Repalace ti as card basis. There is no repair to this board.

I would not keep trying to turn on if a loud noise is heard---some general info:I see so many here with no sound/nopicture issues:ISSUES: 1. IF sound main fuse/s are good.2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.4. Be safe and if you do not know what you are doing don't open the set.Answers to issues:1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.3. Trouble shooting consists of the above and then at some point you have to buyand try a board to see if it fixes it or not.4. Safety first--no TV set is worth getting injured or even killed over.If set is opened at least look for puffed up and bad caps like in thisphoto.