Sony KDL-46W4100 Operating Instructions - Page 43

Other Information Troubleshooting If you have questions, service needs, or require technical assistance related to the use of your Sony TV, please visit our website or call one of the following numbers: http://www.sony.com/tvsupport for US Support http://www.sony.ca/support for Canadian Support 1-800-222-SONY(7669) for US Support 1-877-899-SONY(7669) for Canadian Support Condition No picture No picture Cannot receive any channels TV is locked to one channel Cannot receive or select channels The TV turns off automatically No picture from some video sources Poor picture Picture quality not as good as viewed at the store Broadcast HD formats have poor quality Double images or ghosts Only snow and noise appear on the screen Dotted lines or stripes Explanation/Solution • Check the Power Saving settings (see page 42). • Make sure the power cord is connected securely. • Turn on the power of the TV. • Check cable/antenna connections. • Make sure the Signal Type setting is correct for your TV signal source. • Perform Auto Program to add receivable channels that are not present in the TV's memory (see pages 16 and 37). • Perform Auto Program to add receivable channels that are not present in the TV's memory (see pages 16 and 37). • To receive or select cable channels, make sure that Signal Type in the Channel settings is set to Cable (see page 37). To receive or select UHF channels over an antenna, make sure Signal Type is set to Antenna. • Check if Sleep Timer is activated, or confirm the Duration setting of Timer (see page 31). • Check PC Power Management in General Setup settings (see page 42). • Check the connection between the optional video equipment and the TV. • Press INPUT on the remote control (see page 20). • Press HOME on the remote control. Select your desired input from the External Inputs list. • Picture quality depends on the signal content. See Quick Setup Guide (supplied) to display the best possible picture for that signal. • Content and signal quality are regulated by the signal provider. Many HD channels and content are actually upscaled versions of standard-definition broadcasts. The picture is affected by the quality of the signal received, which varies between channel and program. • Confirm the picture quality by selecting Signal Diagnostics in the Product Support settings (page 31). Then select Sample Image (or Additional Information first). An HD image will display on the screen to confirm routine panel operation. If your normal picture quality is worse than this sample image, it is most likely due to the signal provided by the broadcaster. • Check cable/antenna connections. • Check the antenna location and direction. • Check if the antenna is broken or bent. • Check if the antenna has reached the end of its serviceable life. (3-5 years in normal use, 1-2 years at the seaside.) • Keep the TV away from noise sources such as cars, motorcycles, or hair-dryers. • If using 300 ohm twin lead, move the excess lead away from the TV or try using 75 ohm coaxial cable instead. Other Information (Continued) 43