User manual SAMSUNG PL50Q91

[. . . ] Use HDMI or Component cables to deliver HD picture quality. · Cable/Satellite subscriber : Try HD (High Definition) stations from channel line up. · Air/Cable Antenna connection: Try HD stations after performing Auto program N Many HD channels are upscaled from SD (Standard Definition) contents. · Adjust Cable/Sat box video output resolution to 1080i or 720p. [. . . ] · Make sure audio cables from an external device are connected to correct audio input jacks on the TV. · Check connected device's audio output option. Ex) You may need to change your cable box' audio option to HDMI when you have HDMI connected to your TV. · If you are using a DVI to HDMI cable, a separate audio cable is required. · Remove plug from headphone jack (if available on your TV). · Reboot the connected device by reconnecting the device's power cable. Make sure a video cable is not connected to an audio input. · For Antenna/Cable connection, check signal strength. Low signal level may cause sound distortion. Picture is good but no sound. noise from speaker. 3 (Q450SA)-01963A_CMS-0909. indd 3 2009-09-10 11:40:24 Problem no Picture, no Video TV won't turn on. Possible Solution · Make sure the AC power cord is plugged in securely to the wall outlet and the TV. · Make sure the wall outlet is working. · Try pressing the Power button on the TV to make sure the remote is working properly. · This is normal; PC is always shown on the source list even though a PC is not connected. · Check the audio output setting on your PC. · Remove the left and right audio connections from the set-top-box. If the buzzing stops, this indicates that the set-top-box has a grounding issue. Replace the Component video cables with an HDMI connection. · Black bars on each side will be shown on HD channels when displaying upscaled SD (4:3) contents. · Black bars on Top & Bottom will be shown on movies that have aspect ratios different from your TV. · Adjust picture size option on your external device or TV to full screen. · Replace the remote control batteries with correct polarity (+ -). · Clean the transmission window located on the top of the remote. · Try pointing the remote directly at the TV from 5~6 feet away. Remote control does not work. 4 (Q450SA)-01963A_CMS-0909. indd 4 2009-09-10 11:40:24 Problem Possible Solution · Plasma TVs typically make a soft humming sound. It's caused by the electrical charges that are used to create the images on the screen. [. . . ] · If TV is in the Store Demo mode, it will reset audio and picture settings every 30 minutes. Please change from Store Demo mode to Home use mode in the Plug & Play procedure. Press the SOuRCE button to select TV mode, go to MEnu Setup Plug & Play EnTERE · Check cable connections and reconnect. · Can be caused by using overly rigid or thick cables. [. . . ]