A friend of mine gave me a Samsung HLT5075SX/XAA because she was tired of replacing the bulbs in it and she knew I wanted another TV. I bought a new bulb (an actual Phillips bulb), put it in and it wouldn't work. It powers on, makes the start up chime, I hear the wheel spinning (which I've confirmed by taking the bulb out and holding the door switch and visually confirming it spins) but it won't turn the screen on. It tries three times and then flashes all three front panel lights which the manual says is a bulb problem.
I did some reading and found that a majority of people suggested it was either the power supply or the ballast. I pulled the bulb, held the switch and watched and listened for the ballast to fire but never saw a spark, never saw the bulb try to light. I heard some very faint clicking noises but can't say where they came from. I pulled the power cable from the ballast and tested it with a volt meter and found it to be 338V DC which from what I've read is acceptable. So I ordered a new ballast. Put it in and the same thing happened. Powers on, hear the color wheel spin, tries three times and powers off with a bulb error. Visually I don't see any issues with the capacitors on the power supply.
What else could it be? If the voltage from the power supply reads fine could it still be the power supply? Could it be something with the color wheel even though I hear and see it spinning? Would something else produce a bulb error?
I don't really have the money to send the TV to a tech. Buying the bulb was enough of a strain, the ballast (which I'd like to return) was even more of a stretch.
Any help would be greatly appreciated.