Sometimes a problem may occur that prevents your Symphonic television from operating as expected. When this happens, performing certain troubleshooting steps, regardless of the model of your Symphonic TV, can help you get to the root of the problem. Often you can resolve power-related problems, poor picture quality and audio issues in a few steps without the need to contact a service repair professional.
When your Symphonic TV turns off unexpectedly or fails to turn on, a power problem mostly likely is to blame. Confirm that the power cord connects securely into the electrical outlet or power strip and inspect the power cord for signs of damage, including cuts, crimps and exposed wires. In addition, verify the power source to rule out problems with the electrical wiring in your home by connecting your TV to a different power outlet. Alternatively, you can unplug the TV and connect a working electrical device to the wall outlet. If the device turns on, then the problem lies with the TV.
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If you cannot turn on your Symphonic TV using the remote control but you can turn it on by pressing the power button on the TV set, then change the batteries in the remote. To operate the remote, point it toward the sensor on the TV. Make sure the path between the remote control and the sensor remains clear of objects that may prevent the two devices from communicating.
When the picture quality of your Symphonic TV diminishes and changing the channel fails to resolve the problem, trouble with the antenna, cables or picture settings may be to blame. If you use an outside antenna for reception, then check for a broken wire. If you use a cable connection, confirm that the cable connects securely to the TV and into the wall jack or receiver. In addition, verify the cable connects to the appropriate port on the TV and on the receiver. Adjusting the picture settings such as the color, contrast and brightness, also may resolve the problem.
If your Symphonic TV produces a normal picture but you hear no sound, verify you have not enabled the Mute setting. Additionally, change the channel to confirm that the problem is not the result of station trouble. If both picture and sound quality are poor, check the antenna or cable connections.
Most problems with your TV's closed captioning feature are the result of broadcast issues. For example, certain factors such as heavy rains and lightning, may cause the captioning to appear scrambled. Another example includes the inability to support more than 220 characters per minute. If dialog exceeds this number, then selective editing takes place to keep the captioning in time with the onscreen dialog. Additionally, misspellings may occur during a live broadcast.