User manual SAMSUNG LN40A450

[. . . ] Each VCR has a different back panel configuration. If you have a "mono" (non-stereo) VCR, use a Y-connector (not supplied) to hook up to the right and left audio input jacks of the TV. If your VCR is stereo, you must connect two cables. When connecting to AV IN 1, the color of the AV IN 1 [Y/VIDEO] jack (Green) does not match the color of the video cable (Yellow). [. . . ] When the receiver (home theater) is set to On, you can hear sound output from the TV's Optical jack. When the TV is displaying a DTV(air) signal, the TV will send out 5. 1 channel sound to the Home theater receiver. When the source is a digital component such as a DVD and is connected to the TV via HDMI, only 2 channel sound will be heard from the Home Theater receiver. 1 channel audio, connect the DIGITAL AUDIO OUT (OPTICAL) jack on the DVD player or Cable/Satellite Box directly to an Amplifier or Home Theater, not the TV. When an audio amplifier is connected to the "AUDIO OUT [R-AUDIO-L]" jacks: Decrease the volume of the TV and adjust the volume level with the Amplifier's volume control. Each Amplifier/DVD Home Theater has a different back panel configuration. Connect a D-Sub Cable between PC IN [PC] connector on the TV and the PC output connector on your computer. Connect a PC Audio Cable between the PC IN [AUDIO] jack on the TV and the Audio Out jack of the sound card on your computer. Connect an HDMI/DVI cable between the HDMI IN 2 jack on the TV and the PC output jack on your computer. 5 mm Stereo miniplug/2RCA Cable between the DVI IN(HDMI2) [R-AUDIO-L] jack on the TV and the Audio Out jack of the sound card on your computer. available signal sources: TV , AV , Component1 , Component2 , PC , HDMI1 , HDMI2. You can choose only those external devices that are connected to the TV. If the TV seems to have a problem, first try this list of possible problems and solutions. If none of these troubleshooting tips apply, call your nearest Samsung service center. Problem Poor picture Poor sound quality. No sound or sound is too low at maximum volume. First, check the volume of units connected to your TV (digital broadcasting receiver, DVD, cable broadcasting receiver, VCR, etc. Unplug the TV for 30 seconds, then try operating it again. Compare these values with the data in the Display Modes. Make sure the broadcast you're receiving is High Definition (HD). HD channels sometimes broadcast Standard Definition (SD) programming, which can cause black bars. [. . . ] Set your cable/satellite box to stretch or widescreen mode to eliminate the bars. Make sure the Component cables are connected to the correct jacks. If you are using a Cable/Satellite box, you must set Closed Captioning on the box, not your TV. Your cable box may need a firmware upgrade. [. . . ]