How to Troubleshoot a Sony Projection TV
A rear-projection television uses a projector at the back of the unit to create a small image, which is in turn is magnified and displayed on a large screen at the front. The three types of rear-projection TVs are liquid crystal display, cathode ray tube and digital light processing. Given the amount of technology used in any one of these options, the unit may need some troubleshooting to maintain optimum performance. While many TV repairs should be attempted only by a professional, troubleshooting your Sony projection TV before calling for service can save you money.
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Instructions
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Check for a lamp problem. Sony rear-projection TV units have a lamp indicator light on the front. If the lamp light is flashing, reset the unit. If the unit still doesn't work, the lamp needs to be changed.
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Turn off the unit if the "standby" light is flashing and there is no picture or sound. This is an indication of an internal component problem. Unplug the unit from the wall and wait 60 seconds before plugging it in again. If this does not resolve the problem, service may be required.
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Look at the image and note whether there are black or gray bars on either side. If so, you're probably viewing a standard (4:3) image on a high-definition (16:9) unit. While some units have a "fill" mode that will convert the signal, this can result in a loss of picture quality.
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Reset the unit to factory settings if the sound is missing or out of sync. Press and hold either the "Reset" or "up" arrow key and press the "Power" button on the TV.
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Tips & Warnings
If the above troubleshooting steps don't work, your unit may require repair or service, which you can get by contacting Sony directly.
Lamps may need to be replaced every one to four years, depending on use.
If you see blue stars or blocks on the screen, this indicates an optical block problem and may be covered under your warranty.
Attempting internal repairs on a unit may void your warranty.
Resources
- Photo Credit tv monitor image by IKO from Fotolia.com
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Comments
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