I have a 54 inch lg projection tv . it was having a problem of multicolored band of horizontal light.sound was there but no picture. i called a mechanic to fix it but he ended up causing another problem .now the tv wont even start ..it start and the standyby signal goes away but 5-6 seconds later it turns off .screen stays black
SOURCE: 52 RCA DLP 1080P Television with NO picture and buttons flash
IF you would like help diagnosing your set. Go to the enclosed link. They have the service manual for your set and offer unlimited chat support for only 29.99. Just click on your sets manufacturer and you will see your model. Then click on the contact us link and provide your email address and they will email your manual and instructions on how to obtain your support. I am one of their techs. This manual contains step by step procedure for troubleshooting Your RCA DLP Light Engine
http://servicemanuals.vstore.ca/
SOURCE: Phillips 54 inch rear projection,no picture.
One thing that comes to mind when you say high pitched sound is the HOT ( Horizontal Output Transistor). You may be able to find one at fry's electronics. They are pretty cheap. If you are handy and know something about electronics you may be able to replace it. I am not a TV tech, I have a background in electronics and like to play with them from time to time. Not sure this will help but good luck
SOURCE: Sony KF-60WE610 Screen and Sound On/Off
All symptoms in your TV shows that you need to replace its Lamp as it has been consumed its life hours and TV requires new lamp. Lamp can be obtained from Sony Website. Price is $200, Hope this info will help you to enjoy your Sony TV in coming days.
SOURCE: TV Picture Goes Black
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
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