Sound Problems; Remote Control Problems; Channel Tuning Problems - Toshiba 55L7400U User Manual

Integrated high definition led television
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164
Troubleshooting

Sound problems

Sound problems
Check the antenna/cable connections, see
system" on page
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
properly set, see

Remote control problems

Remove all obstructions between the remote control and the TV.
Replace the remote control's batteries, see
44.
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
47.
If the TV still does not act as expected, perform the Reset Factory
Defaults procedure, see

Channel tuning problems

Ensure that the remote control is set to the correct device mode, see
"Learning about the remote control" on page
The Auto Tuning feature may have erased the channel from memory. To
add the channel to the channel memory, see
66.
The Lock feature may have blocked the channel. To unblock the channel,
see
"Unlocking programs" on page
If you cannot tune digital channels, check the antenna configuration, see
"Initial setup" on page
from the channel list and reprogram channels into memory, see
channels in memory (optional)" on page
see
"TV stops responding to controls." on page
persists, use the Reset Factory Defaults procedure, see
Factory Defaults" on page
34.
®
terminal, make sure that the Rear Shared Audio setting is
"Connecting a digital audio system" on page
"Resetting to Factory Defaults" on page
49. If the problem persists, clear all channels
"Connecting a digital audio
"Learning about the remote control" on page
78.
65. For additional information,
91.
"Installing batteries" on page
47.
"Manual Tuning" on page
161. If the problem
"Resetting to
34.
91.
"Storing

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