Originally Posted by TatorTot
Hey i had the same problem with the flickering like a strobe light for a few seconds
Mitsubishi changed everything, the main board,light engine ,then the ballast , finally last the bulb was changed
The bulb seemed to fix the problem
Now 2 months later my screen went dark & the picture got very dimmed ,like somebody hit a switch then turn it back up
But now the picture is not as bright and the strobe flickering is back
My one year warranty expired with Mitsubishi
But i still have a 2 year extended warranty with dell
So im going to have to go thru this all over again & dell warranty doesnt cover lamps
I think the problem is something else cause like i said the lamp is 2 months old & the last lamp was only 7 months old
The dell tech people are coming over on monday and the flickering happens randomly so he wont see it
What else can they change on the tv to try and fix it ?
Cause buying a $100 lamp every few months is not going to work
I purchased two lamps with housings on Amazon for about $60 each almost a year ago.
I didn't need one at the time but I didn't know how long that price would last so, knowing I would eventually need to replace the lamp, I bought two of them.
I also had the flickering problem and made several posts about it last year. It seems I was the first to post about the problem and couldn't find anything at all about the flickering after exhaustive searches on the AVS boards and elsewhere on the internet. Now it seems as if many folks are having the problem at the same time.
At first I thought that it was because of heat. I installed fans by the rear vents (search my posts and you will see photos of the set up) It brought the internal temperature down by 15 degrees and it seemed for a while that I solved the problem but soon it started flickering again. I was only able to notice it when using the MITS as my PC monitor when the screen was mostly white. It flickered for several seconds at a time at random intervals. I tried to get MITS to replace the lamp under warranty but the website form would not accept flickering as problem calling for replacement. I'm sure the flickering was not limited to viewing as a PC monitor, but in TV mode I never noticed it.
I put up with it for another month and then the brightness started dimming (after about 5000 lamp hours) so I installed one of the new lamps and lamp housing. That actually gave me a brighter picture than I had when the set was new with the MITS brand lamp and I was thrilled over the now superior picture. The flickering even stopped but only for a couple of months, then it started again but to a much
lesser degree. It would flicker for maybe 5 seconds, or so, once or twice a day and again only noticeable in monitor mode with an an all white screen and only in the top left corner. I have read all the recent posts and see that after all sorts of service calls including light engine replacements, no one has yet to figure out the source of the problem, so I decided to just live with it and save the brain damage since it doesn't interfere with watching TV or movies.
Since replacing the bulb had at least some effect in mitigating the flickering, I am led to believe that the problem lies in the the lamp housing circuitry. Possibly a faulty connector. Next time I need to replace the lamp, I will examine the connection and the wiring more closely, but since the flickering does not bother me, I will just leave it till then.
As for the 3rd party bulbs from Amazon, they've worked just as good if not better than the OEM original. I recently bought two more even though it could be years before I need them.
One last thing. The MITS website page where you order warranty replacement lamps flat out sucks. Unless you fill out the form indicating that the bulb is virtually dead, it denies the replacement request. If the lamp is only beginning to fade, you would rightly expect a warranty replacement. If you lie and get a new lamp from them and the lamp you send back is only a bit dimmer and not dead, they will charge your credit card for $100. The best way is to call, explain that the bulb is getting dim but not yet dead and insist on a replacement, that way you've documented the problem truthfully and you won't have to pay for the replacement. The standard lamp warranty is 1 year, but if you purchased an extended warranty as I did, the lamp warranty is also extended.
I hope someone finds something of use from this post. If so, I am glad I was able to pay forward all the great advice I've received from others over the past 2 years.