Chapter 8: Troubleshooting; General Troubleshooting - Toshiba 22AV500U Owner's Manual

Chapter 8: Troubleshooting
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
(T1, T2, T3,
or
T4).
Set the closed caption feature to
Off
(1I:ir'
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, please unplug the power cords 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
(1I:ir'
page 33).
TV will not turn on
• Make sure the power cord is plugged in, and then press
POWER
@.
• 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
(1I:ir'
Chapter 2).
• Press
~
on the remote control or TV and select a
valid video input source (1I:ir' 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 (1I:ir' page 41).
• If you are using a VCR, make sure
(5R
on the remote
control is set correctly
(1I:ir'
page 22).
• Do not connect both a standard video cable and an
S-video cable to the
VIDEO IN
input at the same time
(1I:ir'
page 14).
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
(1I:ir'
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
VIDEO, ColorStream® HOMI, PC,
or from
channels 3 or 4, make sure the
Input Lock
is set to
Off
(1I:ir'
page 47).
Poor color
or
no color
• The station may have broadcast difficulties. Try another
channel.
• Adjust the
Tint
andlor
Color
(1I:ir'
page 41).
Poor composite
or
S-video picture
• If the TV is connected to an external AN 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 AIV 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
(1I:ir'
Chapter 2).
• The station may have 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 (1I:ir' page 43).
• If you are not receiving a second audio program from a
known SAP source, make sure the
MTS
feature is set to
SAP mode
(1I:ir'
page 43).
• 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
(1I:ir'
page 43).
Remote control problems
• Make sure the remote control is set to the correct device
mode
(1I:ir'
page 21).
• Remove all obstructions between the remote control and
the TV.
• The remote control batteries may be dead. Replace the
batteries
(1&
page 20).
• Your TV 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
(1I:ir'
pages 22-26).
• If the TV still does not act as expected, use the Reset
Factory Defaults procedure (1I:ir' page 33).
53
I