Sharp LC42D65U back lights wont turn on, blinking green power light. steady blink, no change in pattern. I attempted putting the TV in service mode(chdwn and vol+, while plugging in the unit). I believe it goes into it because the 24V and BLON signals are both present(from the power supply(24v) and logic board(3.3v-BLON) to the inverterboard) when I do this(yet the back lights still wont illuminate) and the signals are there indefinitely. They are only present for about 8 secs when I just plug the unit in, then the signals dissappear. I'm guessing that is the logic board doing this as it senses a fault. Furthermore, my guess is there is a problem either with one of the lamps, or the inverter board itself. I tried looking for a service manual to troubleshoot further, but all the places I looked online seem shady.....can anyone give me a hand here?

SOURCE: No picture, but power is on...

How many times does the POWER led blink per sec? (dont worry about the OPC)

2x = power supply (not as expensive to fix)
3x = Main board (expensive to fix)

SOURCE: VIZIO LCD 26 INCH model# VW26L HDTV10F NOT TURNING ON

unplug ur backlight inverter plug &power on to see ,if it doesnt on , change ur mainboard

SOURCE: Blinking green power light

All,

I had the same issue after one month of use. A repair cie came and fixed the problem. It appenned to a neon connector that wasn't properly plugged in the TV.
The Technician explained to me that m TV had 16 neons and a sort of controler for those. Often - from factory - a cable is not sitting properly in its position...

Since I have no problem.

SOURCE: If my Sharp Aquos 37in LC-40C37U tv needs to be

Blinking light is an error code. Count the blinks before they repeat. Check your manual in the troubleshooting section. If you can't find it, contact a Sharp service center or try and get a service manual. Reset info is also in the user manual but you can't do it if your set doesn't power up. Are you sure about the power board?

Testimonial: "Thank you. I will get another board."

SOURCE: TV won't turn on

the first thing that you need to do is to open the back cover of your tv.Go to the power supply section it is separate board where the power cord is connected.Using a multitester,plug in the power cord and measure for the output supply.see if the 5vdc ,12vdc and 24vdc are present..if one of this output is missing,replace the power supply board But if the output voltage are complete,replace the inverter board,It is a board that supplies the high voltage to the backlights of your monitor/screen....You can also try to reset the system of your tv by pressing the the small switch mounted on the main board press it twice while the power is on...tnx and good luck!


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