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LG 32LB9DB turns off by itself red light comes on for sec then green light flashes 10 times then tv turns back on, what could be the problem, already replaced power supply and problem returned 3 weeks later why

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Posted on Jan 02, 2017

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SOURCE: won't power, light goes green 5-10 seconds later red flashing light

Solution Found.

I had the same problem with my 42FD5994. It was working fine, then one day I turned the TV on and the front light turned green for about 5 - 10 seconds and then the TV switched to protection mode (front green light is now red and flashing constantly). I did some research and found out the the power board is faulty. I ordered a DIY fix it kit on Ebay for around $55 (includes shipping). The kit contains 5 high temp capacitors and a new IC chip. It also comes with a good detailed photo of the circuit board the components that needed replacing.

I also spent $70 at Radio Shack for some soldering gear and went to work. It took me 3 hours to replace the 6 components. The IC chip was a pain to remove, but one that was out the rest went pretty smooth. I had to remove two extra blue capacitors in front of the IC chip to desolder some of the leads.

After I cleaned the board with Isopropal alcohol (99% pure) to remove the excess flux, I inspected the solder joints to make sure I didn't solder some runs together. All looked good.

Next I put the TV back together and hooked everything back up. I powered on the TV and the same problem as before. The TV went into protection mode. But this time I heard the speakers pop and the screen buzzed. So I pushed in the power button to reset the TV. Next, I turned the TV back on, but this time when the light was green, I quickly pushed the power button again to power off the TV. I tried the TV one last time. I powered the TV back on, and with the remote I turned the TV on. Viola! It worked. The TV powers on great, and works like a champ. I am guessing that the first time I tried to turn the TV on, the new components needed a minute to energize. I also started the TV cold, I should have plugged it in for a few minutes before I tried turning it on.

So, I was successful fixing my 42FD5594 with the DIY kit on Ebay. I ordered it from California. The company was great, and Everything arrived well protected. I figured if this didn't work, it was time to get a new TV anyway. I can save the $2000 for another day.

Posted on Feb 12, 2008

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SOURCE: standby light flashes 3 times

A 3 flash pattern indicates that either the lamp is not seated correctly or that the lamp door is not latched properly. It can also be a fault with the switches that sense whether the lamp is seated or the door is latched. Try reseating the lamp and relatching the lamp door

Posted on Oct 20, 2008

  • 1 Answer

SOURCE: Magnavox 50" plasma Won't Power on/Shut's off/Blinking red LED


I followed the solution e-mailed to me. My 50 in. phillips magnovox plasma had no sound or picture. I removed the back panel of the tv ( 55 screws) and removed the circuit board in the center of the tv. There are about 5 or 6 wire connections that you have to unplug, but they are all different in size so it's ot a problem when reconnecting. Take the circuit board to a tv repair shop. There are 2 capacitators side by side at the bottom center that were bulgeing. 3300ua 10 volt. I had them replaced by the repair shop while I waited. They had (1 ) 25 volt and (1) 16 volt available. The voltages do not have to match each other. The higher voltage is better. I put the tv back together and HURRAY!!! it works. I have been searching for a solution since last summer, Thanks to my problem has been solved. It only cost me $35.00 total.

I thought the tv was going to the curb, thank god I didn't toss it. I hope this solutions works for the endless number of people who have posted this same prolem. GOOD LUCK!!!

Posted on Feb 12, 2009

  • 1 Answer

SOURCE: 55" TV keeps shutting off automatically

Green light flashes 5 and then red light flashes 6

Posted on Sep 28, 2009

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SOURCE: LG TV won't turn on. Power light flashes red/green.


Power supply board just die.It can be dead at anytime.Tries websites, to buy a refurbish power supply board for the replacement.

Posted on May 31, 2010

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