Toshiba 40S51UN Manual Do Utilizador

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General troubleshooting
Before calling a service technician, please check this 
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 (
T1T2T3, or T4). Set the closed caption 
feature to 
Off ( page 36).
TV stops responding to controls
 
If the TV stops responding to the remote control 
or TV control panel and you cannot turn off the 
TV, unplug the power cord to reset the TV. After 1 
minute, plug it in and turn the TV on.
Other problems
 
If your TV’s problem is not addressed in this 
Troubleshooting section or the recommended 
solution has not worked, do one of the following: 
1) Turn off your TV. After 30 seconds, turn it on. 
2) Turn off the TV and unplug the power cord. 
After 1 minute, plug the power cord in and turn on 
the TV. 
3) Perform the Reset Factory Defaults procedure 
( page 45).
TV will not turn on
 
Ensure the power cord is plugged in. Press 
 
Replace the remote control’s batteries.
 
Try the control panel buttons.
Picture problems
General picture problems
 •
Check the antenna/cable connections ( page 15).
 •
Press 
 n the remote control or on the TV and 
select a valid video input source ( page 35). If no 
device is connected to an input on the TV, no picture 
appears when you select that particular input source. 
For device connection details, see Chapter 2.
 •
Antenna reception may be poor. Use a highly 
directional outdoor antenna (if applicable).
 •
The station may be having broadcast difficulties. Try 
another channel.
 •
Adjust the picture quality ( page 49).
 •
If the Edge Booster does not achieve a sharper picture, 
change the Sharpness value to increase the sharpness 
level ( page 49). 
Video Input Selection problems
 
If the 
Input Selection window does not appear 
when you press 
 on the remote control or the 
TV control panel, press 
 a second time. The 
TV displays the next video input source and the 
Input Selection screen.
Chapter 9: Troubleshooting
Cannot view external signals or channel 
3 or 4
 •
If you cannot view signals from external devices 
connected to 
Video 1ColorStream
® 
HD1, HDMI 1HDMI 2
HDMI 3, HDMI 4 (except 24SL415U)PC or from channel 
3 or 4, ensure the 
Input Lock is set to Off ( page 39).
Poor color or no color
 
The station may be having broadcast difficulties. 
Try another channel.
 
Check the Input mode when you use Shared 
Inputs ( page 31).
 
Adjust the 
Tint and/or Color ( page 49).
Poor composite 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, 
this may occur in rare instances when viewing 
certain content (e.g. television broadcasts, video 
games, DVDs). 
Possible causes may include, 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. Try the 
following procedures:
 
If the TV is connected to an A/V receiver that 
has a programmable audio delay feature, use 
this feature to help synchronize the sound to 
the picture.
 
If the problem occurs only on certain TV 
channels, inform your local broadcast, cable, 
or satellite provider.
 •
The settings of 
Shared AV Audio and Shared PC Audio 
may be not correct. Ensure the settings ( page 31).
Sound problems
 
Check the antenna/cable connections ( Chapter 2).
 
The station may be having broadcast difficulties. 
Try another channel.
 
The sound may be muted. Press 
VOLUME.
 
If you hear no sound, try setting the 
MTS feature to 
Stereo mode ( page 53).
 
If you are not receiving a second audio program 
from a known SAP source, make sure the 
MTS 
feature is set to 
SAP mode ( page 53).
 
If you hear audio that seems incorrect for the 
program you are watching (such as music or a 
foreign language), the SAP mode may be on. Set 
the 
MTS feature to Stereo mode ( page 53).
 
If you connect a PC using either the 
PC IN terminal 
or an 
HDMI terminal, ensure that the Shared PC Audio 
setting is properly set ( page 42).