This is the second time the bulb has failed on my t.v. The first time was no issue, bought a new lamp, replaced it, and it worked. This time- lamp goes out, I purchase new lamp, installed, still didn't light-up, Toshiba replaced the lamp, installed new one and still not working. The red and green lights are still blinking together in 1 sec intervals. Any ideas? Toshiba isn't much help and the nearest tech center is 200 miles away. Thanks!
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Re: Installed 2 new lamps, still no picture...
I had the same problem , first ? do u hear any arching noise like spark on the back of u set , if u do thats the ballast , it need to be repleace , now if there is not a spark u may have a bad light engine , need to repleace engine
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I would venture to guess the bulb figment is your issue and the electrical sound is most likely arching (very bad). The cheap replacements won't last. I bought a sylvania build and matched the model number with the one from inside the old bulb housing. Changing out the bulb from the casing is really easy so just return the one you bought and buy the corresponding bul without the case.
Not 100% sure but I am currently looking into this. 2 things it might be which are most probable. I replaced my lamp a few years back with no issues. This time around I figured I'd be proactive and bought a new lamp as my current one was going dim. Not unusable but I could tell. Lamp arrived and I put it in. Started up, great! Then after a few minutes it shut down and the red LED would blink 3 times. I removed the lamp and replaced it after unplugging the tv and turned it on. This time it ran about 20 minutes and same thing! Tried a third time and had the same thing. So I put the old bulb back in, and this time it didn't even turn on! I removed it and with a flashlight looked in there. There are two safety switches. The first is a very small pressure switch at the base of where the bulb interfaces to the TV. That switch ensures the bulb housing is seated. Secondly there is a switch in the rear side where the second door with the lever lock is. When you rotate it the switch is engaged. I replaced the housing carefully and made sure everything was tightly seated. The tv has been on for about an hour now no issues with the old bulb.
I have two theories and am leaning toward the second one I will suggest. One is that the bulb is somehow overheating as it is newer and brighter, or is somehow defective. The other theory is that as the bulb heats up the switch might be getting dislodged. I am leaning towards this given that it is working with the old bulb. But I am not certain. Soon I will try the new bulb again and may even attempt to slightly bend the switch out a little so that it is easier to engage.
Try connecting the TV directly to a different wall outlet and check. If the issue persists, try power resetting the TV. Turn Off the TV and remove the power plug from the wall outlet for 1 minute and reconnect it and check the operation. If the issue persists, then the TV requires service
Had similar problem. Thought it was the lamp. Examined old lamp but it appeared to be good. Ordered a new one anyway. Changed the lamp but the TV screen would not come on. It would make the usual noise as it was going to come on normally but it would cycle 3 times & then turn off. The LED lights in the front panel would indicate a defective lamp. Then read about the ballast. Changed the ballast & still same problem. Tried starting the TV without the lamp installed & noticed that the color wheel did not spin. Removed old color wheel & discovered it was broken. This appears to be the cause of all of my problems. I wish I new earlier of the test-turn on the TV without the lamp being installed & check to see if the color wheel is spinning. Would have save money on the lamp & ballast.
Failed caps on the power supply will cause that. The V26 Power pwb repair kit will usually correct that issue. Its available from www.tvrepairworld.com the kit contains the capacitors and the CD with instructions.
It's probably time to buy a new lamp. They can be very expensive to buy, sometimes up to 400 or 500 dollars. If you think the lamp might be failing prematurely, contact LG's support or warranty department to see what your options are. If you must buy a new lamp, you should check into relamping the existing housing for the bulb. Some bulbs are easy to change the bulb and leave the reflector, saving you money, however, most of them are not easy to change. you'll have to check online.
Yes the Lamp can fail within that time frame. Much of it depends on how many hours the set is running. Most Lamps have a 3000 to 5000 hrs of life. But with any Halogen style Lamp, this is not written in stone.
Hope this helps,