Polaroid 4011-TLXB LCD TV (No video or audio - flashing red light

U check the power supply board and it is good and power is on LED light power indication light up.Than only one possibility the tv Tuner signal board is shorted and dead.That the board,where the incomming broadcasting signal cable plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish Tuner signal board for the replacement.

It may have dying 24vdc power supply due to bad caps, check that first, it may cause more damage if you keep turning on and off.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.

Please post back what you find.

Power supply module is to supply voltages to the main control board (the board where the TV cable and video cables are connected to), backlight inverter board. You can buy the whole control box which has both board assembly (power supply and the main control board): http://www.shopjimmy.com/catalogsearch/result/index/?q=Polaroid+4011-TLXB+&limit=25

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com

Does it work in TV mode?
It can be either the power supply is not putting out all the needed voltages, right now you only have the 5vdc standby voltage (because the RED lifght is on) or the backlight inverter board is bad, it is the board that drives the CCF lamps which is the light source for the screen, it may be bad or not getting the 24vdc from the power supply. worst case will be the main board that is not sending signals to turn on the power supply and the backlight inverter board.

If you are going to DIY and have proper tools and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com

Replace power supply board from PTS. No parts available for PCB.
Generic part nr for IC3 is A6252M can't find one easily.

Turn it off and leave it off. It seems that your unit has some sort of major PSU fault, or a problem that is shutting down the Power Supply Unit, PSU. This happens so that no further damage, and possible fire will occur.

You need to take the unit to a reputable service centre/man and ask for a firm "Quote" for the work to be done.

if you replaced the supply board then there is issues with the decoder board as you would need to chec kthat and see if its not the issue.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620

blown caps in powe supply they will be domed from venting

I think I may have just solved this issue. Remove the back covers and turn the tv on until it the screen goes black. There will be a little red led that will light up when the screen goes black. right above that light there is 4 little swiches, the bottom one is labled BURN. Switch that one to the opposite direction. I don't know how but mine has been working for a couple days now with no issues. GOOD LUCK!

check the backlight inverters.