20 Most Recent LG 42PC3D 42 in. Plasma Television - Page 2 Questions & Answers

For this model it is usually power supply(look for popped or bulged capacitors) or YSus board(look for shorted components}

check for shorted components on YSus board and Y Driver boards (the boards on the left with the back off) This job is for a tech type person.

PCB means printed circuit board.All the boards in your TV are PCBs, Please specify which board. example YSus, ZSus, Power Supply. Control board, YDrivers etc

Sounds like you hit favorites button.

Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/

Check the settings on your laptop to make sure it is outputting a resolution that the TV will support.

Check its speaker/s or its headphone socket (if any). Check its audio output card too. Contact any service technician or the authorized service center for LG. Gopakumar Gopalan Google

In other words, the set is dead! You should start troubleshooting by its main power regulator board,[SMPS board] itself. Contact any service technician. If you wish to get some details, check the site linked here. http://electronicshelponline.blogspot.com/ Pull up older posts. Check the site in 'Mosaic' view. It will make search easy.

Push the "Ratio" button on your remote and see if that helps. I am assuming you are connected to either a cable or satellite box. If pushing ratio doesn't work, it may be a setting in the box. Post what kind of box your using and I will see if I can help.

Sounds like Y-Sustain drive short. Contact any service technician. Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product by anyone else could result in serious injury or death. If you are not familiar with electronics, do not attempt to repair. Whether you suffer fatal electrical shock. Instead, contact the nearest service center. If you wish to get some details, http://electronicshelponline.blogspot.com/ Pull up older posts.

Y-Sustain and drivers boards should be troubleshooted. It is a skilled work. Will be better to contact any service technician in this case. Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product by anyone else could result in serious injury or death. If you are not familiar with electronics, do not attempt to repair.Whether you suffer fatal electrical shock.Instead, contact the nearest service center. To get some details, http://electronicshelponline.blogspot.com/Pull up older posts.