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Re: No picture or sound
First you will need a schematic, and some equipment, if you do not have a background in electronics. You will need to take the unit to a TV repair shop.
Having said that I believe your problem is in the high voltage power supply section. You will need a schematic to which to compare the measured voltages to, a multimeter to measure the voltages, and access to an oscilloscope to measure the wave forms on the DC voltage line to make sure ripple voltage is at a minium or not present at all.
Reading the error lights is ok as a begining but nothing beats troubleshooting.
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I have a mits. 82738 tv which would shut off after 20 minutes when first turned on .
Loose sound and picture.
Looked up error code in service manual and it said the lap was the problem.
Replaced lamp and now it works fine and the picture quality is great.
2 possibilities. First, the bulb which allows you to view your picture could be burned out. If that is the case, your tv will turn on and you will hear audio but no picture. $85 for a new warranted bulb from Shopjimmy.com. Second possibility. If your TV is on with no picture or sound, you probably have a light engine problem.$325. I don't think it's your light engine. Just don't have enough information. Check the first possibility first. The bulb takes less than 5 minutes to replace. Don't buy just the bulb, buy it with the housing. It doesn't cost more, it costs less and saves a ton of aggravation. Don't touch the bulb with your fingers, use latex gloves when working on electronics.
You tv used lamp XL-2400 or also known as F93087500. It is very common for this bulb to fail and have the exact symptom you are experiencing. I cant count how many times I have seen it.. Replace the lamp with either the exact Sony or an OEM and you will be back in business..
If the green power light is blinking and you have no picture, then your light bulb has burned out and needs to be replaced. It is not a cheap bulb to replace. If the TV is less than 1 year old it should be covered by the warranty
I had the same exact problem.
I removed the bulb and cleaned it. There is a small screen at the top of the bulb and it was covered with dust. Once it was cleaned I replaced the bulb and it solved the problem.
Thanks to those who posted the solutions