The WEGA engine is a picture-quality system that was manufactured by Sony from 1998 to 2005, when the system was rebranded as BRAVIA. Over that time, several types and sizes of televisions were produced under the WEGA name, including 50-inch rear projection models. These sets used LCD (liquid crystal display) screens with a rear projector lamp to produce sets there were thinner and smaller than standard rear projection models but less expensive than flat panel LCD displays. There are several things that you can troubleshoot to fix problems you may be having with a 50-inch Sony WEGA TV set.
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Check the power cord. Ensure that the power cord is securely connected to a power outlet and that the power outlet is operational.
Check the audio/video connections. If you are trying to watch and externally connected device, check that the video and audio cables are securely connected to the back of the WEGA TV as well as to the device itself. Also check that you are tuned to the proper input channel.
Check the "Power/Standby" LED light on the front of the TV. If the light is blinking in bursts of three, then the lamp cover on the back of the TV is loose. If the light blinks in bursts of two, then the internal temperature of the TV is too high. Check that all vents are clear and let the TV cool off before you operate it again. If the light continuously blinks, then the set may have an internal problem and require service from a Sony Service Center.
Check the "Lamp" LED light. If it is blinking red, then the currently installed lamp has expired and needs to be replaced. Refer to the TV's owner's manual for specific instructions on what type of lamp to replace it with and how to replace it.
Rest the TV to factor settings. While the TV is turned on, hold the "Up" button on the remote and press the "Power" button on the remote. The TV will turn itself off and back on. This will reset all of the TV's settings and clear and custom adjustments you may have made.
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