Toshiba 19SL400U Manuale Utente

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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 37).
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, please unplug the power 
cord few seconds then re-plug to try again.
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 27).
TV will not turn on
 
Make sure the power cord is plugged in, and then 
press 
 
The remote control batteries may be dead. Replace 
the batteries or try the control panel buttons.
Picture problems
General picture problems
 
Check the antenna/cable connections ( Chapter 2).
 
Press 
 on the remote control or TV and 
select a valid video input source ( page 29). 
If no device is connected to a particular input 
on the TV, no picture will display 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 have broadcast difficulties. Try 
another channel.
 
Adjust the picture qualities ( page 37).
Chapter 8: Troubleshooting
Noisy picture
 
If you are watching an analog channel (off-
air broadcast or Cable TV), you can set the 
CableClear
®
 feature to reduce visible interference 
in the TV picture ( page 52).
Video Input Selection problems
 
If the 
Input Selection window does not appear 
when you press 
 on the remote control 
or TV, 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 
VIDEOColorStream HD, 
HDMI 1
HDMI 2PC or from channels 3 or 4, make sure 
the 
Input Lock is set to Off ( page 42).
Poor color or no color
 
The station may have broadcast difficulties. Try 
another channel.
 
Check the AV Input mode when you use 
Video or 
ColorStream HD ( page 26).
 
Adjust the 
Tint and/or Color ( page 37).
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 
ColorStream HD 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:
 
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 you notice this phenomenon only on 
certain TV channels, please contact your 
local broadcast, cable, or satellite provider to 
inform them of this issue.