I have a kde-50xs955 sony plasma tv and now hdmi port stopped working. tried with new hdmi cables but no luck. cut power to reboot still not working. tried different devices and wont show it is even connected to hdmi

mayble the ir remote panel at the back

check all your cables & connections & connections at I/O ports; possibly I/O PCB

Does say a dvd player give sound when connected to the same input? If you have determined that the source is good and the speakers are turned on in the menu then I would replace the main board.

Tries tv unplug,replug it back like about hour later.For the tv do a resetting itself,take out the tv HDMI cable out the old HDMI hub port try plug it into another tv HDMI hub port.Should work now,still have same problems,probally needed a new HDMI cable replacement,the old HDMI cable is worn out or shorted out.

One of the fans are not spinning. Take back off and clean the fans and/or replace if necessary.

Yes a universal will work for the TV. You will not have all the funtions with a universal though. You should be able to order a new remote from the manufature though.

Good Luck

it is a a/v hook up not a component hook up
try that like av1 av2 av3
should work a lot better
ron

4 blinks means Digital 5Vdc output voltage excessive or
too low.

Usually the power board. Also possible because of an abnormal power draw from B Board.

Test the following:

Power Supply Output Test CN1/pin 9 / 10

B board is the load - Test CN101.

To identify parts and components purchase service manual and follow schematics on service manual.

Parts and service manuals can be purchased from one of the following:

Appliance parts, electronics parts & more from PartStore.com

Encompass Parts Distribution

Manuals and schematics.

ManualsParadise.com The best source of repair manuals

Replacement Parts: Plasma TVs, LCD TVs, Appliances | ShopJimmy

This Tv is a piece of junk I have 2 of them and I had to replace the first one with this same problem. The second one just broke is stuck in dvd mode. Company is out of buissness

There is a sleep setting, similar to a snooze butting on an alarm clock, and it can be found in the Time Menu.  Just turn it off, and the set should work fine.
Good luck.