Hi I have a 55" philips plasma tv the other day I went to turn it on and all I see is a red blinking light that's it nothing on the screen I would like to have it fixed without having to spend a lot $

I'd look for the manual and see what it says about that red light. I can't find squat for "Magnavox KM42010P".

HI:
This is a plasma unit and philips plasma's are nortorious for bad power supplys, your problem may very well be the power suppy in the television, it is possible you blew a low B+ fuse on the power supply. There is also a issue with the Y-sustain board failing in this model, If you open the back and looking at the unit from the rear the y board is on the left side of the unit and the PS is in the center. disconnect the Y-sustain power plug from the power supply and turn on the unit if the unit stays on with no red light then the y board is bad. it does the same then replace the Power Supply.

problem on power supply , u may have 2 bAD capacitor

Hi

did you notice the standby light? or blinking lights? and how many blinks as you see?

Thanks!

Hi kellar6263,

Try unplugging the TV from the wall for about 15 seconds. Then plug it and see if it works. There are more troubleshooting tips that are beyond the scope of what I can write out on FixYa (like upgrading the firmware on your TV using the USB port) but you can check out the Support Page for your Television.

Best of Luck
Jordan

hello, if you have no picture with blinking or flashing leds this means you will need service. its a common problem with these newer sets they have built in protection circut that cuase the tv to shut down and start blinking. this indicates a power problem and according to the number of blinks indicates the fualt location for the repair tech..

it is not something easily reset or user repairable
hope this helps

The power supply board went dead. Have it repair or replaced. No other way around this. Thanks, mike H.

5 volt protection is causing the set to go into protective shutdown. Check for shorted diode 6306. Part#934038020127
or shorted capacitor 2318. or faulty voltage regulator

did u cheak the input cables does it do it on dvd input as well as others ?

U better have it checked by a qaulified tech