Troubleshooting - Toshiba 52HMX84 Owner's Manual

Troubleshooting

Before calling a service technician, please check the following table for a possible cause of the symptom and
some solutions.
Symptom
TV will not turn on
No picture or too dark
No picture, no sound
No sound, picture OK
Poor picture, sound OK
Poor reception of broadcast channels
Cannot receive above channel 13
Black box appears on the screen
Unable to select a certain channel
Multiple images
Poor color or no color
No stereo or SAP sound from a
known MTS broadcast
The screen lights dimly and the fan
continues to run when the power is OFF.
The remote control does not operate
Cannot access signal input sources
(Video1, Video2, Video3,
ColorStream HD1/HD2, HDMI1/2)
and/or Channels 3 and 4.
66
Solution
• Make sure the power cord is plugged in, then press POWER.
• The remote control batteries may be dead. Replace the batteries.
• If you have recently replaced the lamp unit, make sure the lamp unit
and lamp unit door are installed properly.
• The lamp unit may need to be replaced. (See "LED indications" on
page 64.)
• The lamp unit may need to be replaced.
• Check the antenna/cable connections.
• The sound may be muted. Press VOLUME.
• The station may have broadcast difficulties. Try another channel.
• Make sure the SPEAKERS function in the AUDIO menu is set
properly.
• Check the antenna connections.
• The station may have broadcast difficulties. Try another channel.
• Adjust the PICTURE menu.
• The station may have broadcast difficulties. Try another channel.
• Check the antenna connections.
• If you are using a VCR, make sure the TV/VCR button is set
correctly.
• Make sure the TV/CABLE switch is set to the mode that
corresponds with the signal source type (cable company or outside
antenna).
• The closed caption feature may be set to one of the Text modes (T1,
T2, T3, or T4). Turn closed captioning OFF.
• The channel may be locked with the CH LOCK feature, or erased
with the ADD/ERASE feature.
• The station may have broadcast difficulties. Try another channel.
• Antenna reception may be poor. Use a highly directional outdoor
antenna.
• The station may have broadcast difficulties. Try another channel.
• Adjust the TINT and/or COLOR in the PICTURE menu.
• The lamp unit may need to be replaced.
• Make sure the MTS feature is set properly.
• The Quick Restart feature may be in ON mode. Set to OFF if you
do not prefer this.
• Make sure the appropriate device mode is selected.
• Remove all obstructions between the remote control and the remote
control sensor in the TV.
• The remote control batteries may be dead. Replace the batteries.
• Check the VIDEO LOCK feature. (See page 45.)