Question about Protron PLTV-37 37 in. LCD Television

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Yellow light on front is lit and the tv won't power on

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This is due to the power supply. You need a full replacement as Protron power supplies are very difficult to diagnose/repair. Once you replace the power supply you will be good to go!


Please accept and rate if this helped :)

Posted on Mar 17, 2011

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Power not coming on, nothings been moved & have a yellow light lit in bottom left corner of tv.


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://electronicshelponline.blogspot.com/

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My LG LCD 32LD350 seemed to have been fried in a storm last night, stanby red light no longer lit and won't turn on, still see some green lighting inside televison, but it won't turn on, Is it


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Tv won't turn on power indicator light not lit


Hi,
As you mentioned the tv have problem with the power supply stage. Before suspecting for any intenal fault Chcek the following first. Remove the AC plug of the tv and connect the same in any other wall outlet. If then also it shows the same problem then its the powersupply board of your tv.
working on power supply board should be done by a skilled worker. Because there is risk of electric shock even if the power is disconnected. some of the capacitors will hold charge even if the power is not connected.

Here i have adde the link which will lead you the powesupply board.

Power supply board

Ajin

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Installed new lamp. When powered up blue solid light and yellow blinking light (15x) , tv would torn off and on several times trying to light lamp. Once that failed red blinking light and yellow solid...


Hi Genaro,

Blue led light lit solid and yellow led light flashes is an initial attempt of the set to re-light the lamp.Red led flashes and yellow led light solid means that the lamp won't light up that's why it only has sound without the picture.
Since you've replaced the lamp twice and still the symptoms persist, I suspected that the fault came from the ballast board and not on the lamp itself. If the ballast board gone to malfunction, there's no high voltage will produce to light up the lamp and will sensed by the processor and trigger the error code (Flashes/solid led light with color code).

To verify whether the ballast board is faulty or not, check if the lamp will lit by looking through the lamp door louvers at the rear of the cabinet upon turning on the set.
Please let me know what you will find to assist you further.

Jdvillanueva

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Are there any lights lit on the front of the TV? Have you checked for a bad lamp? When you reset the TV the timer/power light should flash on and off rapidly for 60-70 sseconds. Does that happen?

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Are you saying that it has sound but no video?

Plug only the video plug (yellow) to the TV. Turn on the backswitch. When the red light in front is on, put your finger on the on/off button in front AND KEEP IT THERE. You will hear some beeps; don't worry about that. Keep your finger on the button until the front power light goes red again. This resets the PS3 video settings. Turn the PS3 on and the TV should pick up the signal.

Hope this helps. Keep us posted.

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