ballist or not

[andy]

I have a HL-s4266W my troubles started with the indications of a bad bulb. ( flashing stand by and lamp) after the set turned on for a few seconds then went black. I bought an after market bulb installed it and had no resolution to my problem. I then replaced the ballist, my set worked perfectly for about two weeks. Then the same problem repeted. I bought another ballist, thinking I had a defective repalcement. It lasted less then 24 hours same symptoms. What is my next move? Andy and frustrated

[Kelly]

[TMSooner]

I have a similar problem. I have an HLS4266wx and my set would power on, last for about 20 min then power off. Over the course of a week it got the the point it would only stay on for less than a minute before shutting down. I would get all the blinking lights, read up on a few boards about various problems and decided to try the lamp first. Bought a Phillips replacement lamp which did not fix the issue. I then decided to replace the ballast as that was what most of the advice said was the most likely problem after the lamp. I bought the part from DM and replaced it, but now the set powers on but the lamp will not light up at all. I also hear a quick beeping noise while the power is on. Any thoughts before I pull out the last of my remaining hair?

[Kelly]

[TMSooner]

I did verify that the lamp is the correct part, however I am not so sure about the ballast. I had a hard time getting an actual part number from the piece itself. On the board there is a number on my original that is 4422 400 03765 3 and a barcode number 9137 008 20605. Doing a search I came up with a part number of BP47-00037a. The new part came with numbers 4422 400 03765 2 and 9137 008 29405. The parts look identical and perhaps the difference in numbers is just a manufacturing thing, not sure.

[Kelly]