20 Most Recent Philips 50PF9631D 50 in. HD-Ready Plasma Television Questions & Answers

Back - light problem. 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. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electro-medical.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Hola amigo su problema parece ser el amplificador de audio de tu tv por desgracia es un procesador y viene junto con la placa principal y es de dif?cil reparaci?n no te compliques y busca ayuda profesional ,suerte...

The failure with your plasma is with defective capacitors in the power supply.
Check the link below with info on how to DIY.
http://www.fixya.com/support/t5048641-easy_replace_capacitors

You need a new main board. You can order one on ebay but make sure its the correct model/serial TV number on the back label of your TV.

Your TV main board is damaged and you need a new one. You can order one on ebay and fix it yourself. Make sure you have the TV model/serial number on the back label of the TV to have the right part when ordering.

Your TV is in Protection Mode right now. A part inside the TV has failed and the TV will not turn ON to prevent other parts from being damaged. The red light blinking is an error code for diagnosing the problem part on the one of the power supply boards. The problem boards that need to be looked at is the Backlight Inverter Board or the Main Power Supply Board.
There is a slim chance you can leave the TV unplugged for an hour so the TV can discharge and reset itself. But other than that, I would use the warranty if possible. The TV repair shop maybe expensive, so get some price quotes to see if it worth the trouble.

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.

If the bottom is black it's the lower buffer board and I believe that's the Y buffer board. Should have on ebay fairly inexpensive

Change y_sus or y main and buffers up and lower

If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. http://electronicshelponline.blogspot.com/

It sounds that there is some loose contacts to some connections to your Plasma display. Almost all plasma displays will have similar configurations to display circuits, will change only with the size of the screen. If you wish to get some details http://electronicshelponline.blogspot.com/ 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 centre.