Toshiba 84L9300U User Guide - Page 180
Sound problems, Remote control problems, Channel tuning problems
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180 Troubleshooting Sound problems Sound problems Check the antenna/cable connections, see "Connecting a digital audio system" on page 38. The station may be having broadcast difficulties. Try another channel. The sound may be muted. Press the VOL (+ -) buttons or MUTE button. If you are connected to a computer using either the PC IN terminal or an HDMI™ terminal, make sure that the Rear Shared Audio setting is properly set, see "Connecting a digital audio system" on page 38. Remote control problems Remove all obstructions between the remote control and the TV. Replace the remote control's batteries, see "Installing batteries" on page 50. Your TV's remote control may not operate certain features on your external device. Refer to the owner's manual for your other device to determine its available features. If your TV remote control does not operate a specific feature on another device, use the remote control that came with the device, see "Learning about the remote control" on page 53. If the TV still does not act as expected, perform the Reset Factory Defaults procedure, see "Resetting to Factory Defaults" on page 105. Channel tuning problems Ensure that the remote control is set to the correct device mode, see "Learning about the remote control" on page 53. The Auto Tuning feature may have erased the channel from memory. To add the channel to the channel memory, see "Manual Tuning" on page 70. The Lock feature may have blocked the channel. To unblock the channel, see "Unlocking programs" on page 93. If you cannot tune digital channels, check the antenna configuration, see "Initial setup" on page 55. If the problem persists, clear all channels from the channel list and reprogram channels into memory, see "Storing channels in memory (optional)" on page 69. For additional information, see "TV stops responding to controls." on page 177. If the problem persists, use the Reset Factory Defaults procedure, see "Resetting to Factory Defaults" on page 105.