Toshiba 56HM66 Owner's Manual - English - Page 44

HM66_EN.book Page 44 Thursday, February 23, 2006 2:49 PM Chapter 7: Troubleshooting General troubleshooting Before calling a service technician, please check this entire chapter for a possible cause of the problem and some solutions you can try. Black box on screen • The Closed Caption feature is set to one of the Text modes (T1, T2, T3, or T4). Set the Closed Caption feature to Off (- page 31). TV plays a recorded anouncement when LEDs are blinking • When certain non-standard conditions occur, the LEDs on the TV will blink and the TV will play a recorded "voice announcement" describing the condition (see "LED indications" on page 46 for details). TV stops responding to controls • If the TV stops responding to the controls on the remote control or TV control panel and you cannot turn off the TV, press and hold the POWER button on the TV control panel for 5 or more seconds to reset the TV. Other problems • If your TV's problem is not addressed in this Troubleshooting section or the recommended solution has not worked, use the Restore Factory Defaults procedure (- page 22). TV will not turn on • Make sure the power cord is plugged in, and then press p. • The remote control batteries may be dead. Replace the batteries or try the control panel buttons. • If you have recently replaced the lamp unit, make sure the lamp unit and lamp unit door are installed properly (- pages 47-49). • The lamp unit may need to be replaced (- pages 47-49). Also see "LED indications" (- page 46). • If the TV is powered off and then quickly on again when the lamp unit is hot, it may take several minutes for the picture to appear on-screen. This is a property of DLP TV lamp technology and is NOT a sign of malfunction. For details, see IMPORTANT NOTICE ABOUT "HOT LAMP RESTART" (- page 2). Picture problems General picture problems • Check the antenna/cable connections (- Installation Guide). • Press + on the remote control or INPUT on the TV control panel and select a valid video input source (- page 23). If no device is connected to any of the inputs on the TV, no picture will display when you select that particular input source. For device connection details, see the Installation Guide. • Antenna reception may be poor. Use a highly directional outdoor antenna (if applicable). • The station may have broadcast difficulties. Try another channel. 44 • Adjust the picture qualities (- page 30). • If you are using a VCR, make sure L on the remote control is set correctly (- page 9). • If you have two VCRs connected to your TV, make sure you have not connected the same VCR to the TV's output and input connections at the same time (- Installation Guide). • Do not connect both a standard video cable and an Svideo cable to the same set of VIDEO inputs (VIDEO 1, or VIDEO 2) at the same time (- Installation Guide). Noisy picture • If you are watching a tuned analog channel (off-air broadcast or Cable TV), set the CableClear®/DNR feature to AUTO to reduce visible interference in the TV picture (- page 41). Video Input Selection problems • If the Input Selection window does not appear when you press + on the remote control or INPUT on the TV control panel, press + a second time, which will change to the next video input source and display the Input Selection window. Cannot view external signals or channel 3 or 4 • If you cannot view signals from external devices connected to VIDEO 1, VIDEO 2, or ColorStream®, or from channels 3 or 4, make sure the Input Lock is set to Off (- page 38). Poor color or no color • The station may have broadcast difficulties. Try another channel. • Adjust the Tint and/or Color (- page 30). • When the ColorStream® signal source is active, the VIDEO OUT terminal outputs blank video. To receive video from the VIDEO OUT signal, a standard video or S-video IN terminal must be used instead of the ColorStream® connections. Picture brightness changes soon after turning on TV • If you set the lamp mode to Low Power, each time you turn on the TV, the lamp will start out in High Bright mode but will switch to Low Power mode after a short period of time. You may notice a change in screen brightness when this happens. This is normal and is not a sign of malfunction (- page 42). Poor composite or S-video picture • If the TV is connected to an external A/V device (e.g., DVD player, video game system, set-top box, etc.) try using a ColorStream or HDMI video connection instead. Picture and sound are out of sync • As with all products that contain a digital display, in rare instances, when viewing certain content (e.g.. television broadcasts, video games, DVDs), you may notice that the sound and picture are slightly out of sync. This phenomenon can be caused by various factors including, without limitation, video processing within the TV, video processing in an attached gaming system, and video processing or different compression rates used by broadcasters in their programming. You may want to try one or more of the following suggestions, which may help to reduce the effect of this phenomenon: HM66 (E/F) Web 213:276