20 Most Recent HP PL4260N 42 in. Plasma HDTV Questions & Answers

Main system control memory IC fault. This is a very small IC; have 8 solder terminals, and can be located very near to the main system control-chroma IC. Check and replace it. Be sure to replace it with the same number printed on it; in all respect. Otherwise, it won't go. http://electronicshelponline.blogspot.com/ Before replacing it, try a reset to this set, and then check. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; check the site linked here.

If you wish to get some details; visit the site linked here. Pull up older posts. http://electro-medical.blogspot.com/

The TV is in demo mode. Turn it off via the menu; the instructions would be beneficial here.

I had an LG 37" LCD that did this to me. Turned out to be bad solder joints on the side button board. Just reflowed and it starting working fine.

But now that I think about, I had another set do the same thing, only it wasn't the button board. I had to upgrade the TV's firmware via the USB service port. Just needed a USB flash drive and downloaded the firmware from the mfg's website. There were easy to follow instructions there too!

Fault to 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. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

plasmas dont have tubes,there are 3 computer boards inside that can go bad,power,control and backlight,contact the company for service

It might be repairable, but the repair will likely cost you triple what a new TV will cost.

Ur LCD inverter board it dead.Require changing to get the picture back.

Many LED TVs and other electronics have bad capacitors on their power supply boards. You can visually inspect them by opening the TV and looking for capacitors with bulging tops. If tou see any, replace them all in the power board section. Check to see if your TV is still under warranty first though.

Is it only when connected to the computer? If so there are several settings that could be causing the issue. The biggest is the refresh rate, make sure it's set to a max of 60HZ. Also make sure the resolution is not set to high. If your TV is 720p it's 1280x720, for 1080p it's 1920x1080 MAX! Also make sure the cable is tight on both ends. If all this is okay, it may be a hardware issue, but it's doubtful. Try hooking the computer to another TV. If it's not a computer the issue is most likely either the source resolution or the cable. Good luck

Sounds like a main board fault. Contact any service technician to confirm. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. http://electronicshelponline.blogspot.com/

Check the remote control for its infrared emission first. Check it with fresh batteries. If you wish to get some details, check the site linked here. Pull up older posts. Check the site in 'Mosaic' view. It will make search easy. http://electronicshelponline.blogspot.com/ Details about how to check a remote control is given.

do you want to fix it your self? cause that's usually a inventor problem. i can help you. http://www.tvrepair.localdomain.me TV Repair Service Television Repair Tv Repair Toronto Mississauga...

The buzzing is normal thing, because white screen requires most power and your chopper works at its max. The sound comes from inductance coils and transformer because of old isolation and glue which shouldnt make any problems.