Toshiba 26AV502RZ 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 42).
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 33).
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 34). 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 42).
 
If you are using a VCR, make sure 
 on the 
remote control is set correctly ( page 22).
 
Do not connect both a standard video cable and 
an S-video cable to the VIDEO 1 input at the 
same time ( page 14).
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 54).
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 VIDEO 1, VIDEO 2, ColorStream
®
 
HDMI 
1HDMI 2, PC, or from channels 3 or 4, make sure the 
Input Lock is set to Off ( page 48).
Poor color or no color
 
The station may have broadcast difficulties. Try 
another channel.
 
Adjust the 
Tint and/or Color ( 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:
 
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.
Sound problems
 
Check the antenna/cable connections  
( Chapter 2).
 
The station may have broadcast difficulties. Try 
another channel.
 
The sound may be muted. Press 
VOLUME.
(continued)