Toshiba 65NH84 owner manual Troubleshooting, Antenna, Black box appears on the screen

Appendix

Troubleshooting

Before calling a service technician, please check the following table for a possible cause of the symptom and some solutions.

Symptom	Solution
TV will not turn on	•	Make sure the power cord is plugged in, then press POWER.
	•	The remote control batteries may be dead. Replace the batteries.
No picture, no sound	•	Check the antenna/cable connections.
No sound, picture OK	• The sound may be muted. Press VOLUME.
	•	The station may have broadcast difficulties. Try another channel.
	• Check that the SPEAKERS function in AUDIO menu is set properly.
Poor picture, sound OK	•	Check the antenna connections.
	•	The station may have broadcast difficulties. Try another channel.
	• Adjust the PICTURE menu.
Poor reception of broadcast channels	•	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.
Cannot receive above channel 13	•	Make sure the TV/CABLE switch is set to the mode that
		corresponds with the signal source type (cable company or outside
		antenna).
Black box appears on the screen	• The closed caption feature may be set to one of the Text modes (T1,
		T2, T3, or T4). Turn closed captioning OFF.
Unable to select a certain channel	• The channel may be locked out with the CH LOCK feature, or
		erased with the ADD/ERASE feature.
Multiple images	•	The station may have broadcast difficulties. Try another channel.
	•	Antenna reception may be poor. Use a highly directional outdoor
		antenna.
Poor color or no color	•	The station may have broadcast difficulties. Try another channel.
	• Adjust the TINT and/or COLOR in the PICTURE menu.
No stereo or SAP sound from a	•	Make sure the MTS feature is set properly.
known MTS broadcast
The remote control does not operate	•	Check whether 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.
Cannot access signal input sources	• Check the VIDEO LOCK feature.
(Video1, Video2, Video3,

ColorStream HD1/HD2, HDMI) and/or Channels 3 and 4.

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