I also own a Mitsubishi WT-46809 and the TV automatically turns off after a few seconds from turning it on. Any suggestions on what causes it and how to fix it.

everybody read reAd reAd, yor answrSARE are all thE on the forum.

"Those who do not know their opponet's arguments, do not completely understand their own".

do a searh from th home psg, thrr are over 1500pages on these mitsubshi or one clo e to yours. if ou want spicfic info I need an exact model numbr aand what you have alreay attmpted to do to fix it. also how xpeienced are you at using a multimetter snd solding iron, can yo read a schematic diagram and follow circuit flow/ and have you ever worke on soli state printed circui bosrds befoe?

"Those who do not know their opponet's arguments, do not completely understand their own".

Joe11 How am I suppose to send you anything? yo hae no e-mail address?

"Those who do not know their opponet's arguments, do not completely understand their own".

Hi Larry,
How are you doing? I hope everything is OK. Have you been able to help me find anything out with my set yet?
Joe

Hi blkvry,
Thanks for the help but what is this information about? Is this the cause of my problem or something I should just check and how can I check it?
Joe

OK, where do I get the code definitions from? Is there a list somewhere on this site?

blkivry said: convergence chips or located on the middle board right in the middle on a big silver heat sink. they have 14 or 18 pins. and associated pico fuses(usually greenand mark with the starting letters f9a)

Hi blkvry,
Thanks for the information regarding convergence chips, is there anyway that you could post a picture of it? i think that is more helpful.

thanks
Mon

i dont know for sure . dianostic usaully works. the main two things that go bad are the convergence ic and pico fuses related to the ic s or the flyback transformer. when it is trying to come on do u hear a whine. if so flyback is the problem. another possibility is ampicture tube bad u can check that byremoving the board at the bottom of each tube and turning on power to see if u get something. good luck . i would be guessing but i think it is your flyback.

can u hear the high voltage turning on in the first five second. it makes a noise like .static. i still think its your flyback transformer. i just change one on a mitsubishi that would turn off after 2 seconds. the turning off is because it is going in to protection mode because it sense something wrong. i was able to verify with the diagnostic code which was 23 meaning horozonal deflection which is either hv transistor or fllyback transformer. i read the transistor and had voltage so i new it was the flyback. it cost between 20-40 dollars. and i think in your case worth trying.

look at the number on the part probaboy starts with ffa.(probably ffa61513). thengoogle the number to find the best price. the part sticks up and is black with a big red wire coming out of it and leading into another part that has three big red wires coming out of it.

did i say disconnect the red wire'''uu r really lucky u didnt get shocked.lolu have to discharge that before disconnecting. plug it back and try disconecting the boards on the bottom of the picture tubes one at a time and trying power each time u disconnect one. and do u have a volt meter.

not the red wire the board at the bottom of the crt wiggle it side to side while pushing down and it comes off the tube, also before you do that measure the b+ voltage it should be about 130 volts to 180 volt dc. during starup before it goes into protection.