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Brandon SmithSep 9, 2025
Why is my JVC LT-42P789 LCD TV screen 80% black?
- JJason Frost MDSep 9, 2025
If your JVC LCD TV screen is mostly black, the Closed Caption Text mode may be turned on. Turn it off in the Closed Caption Menu.

Why is my JVC LT-42P789 LCD TV screen 80% black?
If your JVC LCD TV screen is mostly black, the Closed Caption Text mode may be turned on. Turn it off in the Closed Caption Menu.
Why is the picture cut off in 1080p on my JVC LCD TV?
If the picture is slightly cut off when you're using the 1080p format on your JVC LCD TV, change the picture format setting on your external device to 1080i or another resolution.
Why doesn't my HDMI device work with my JVC LT-42P789?
This JVC television can accept a variety of HD signals, including 720/60p, 1080/60i and 1080/60p. It does not accept a 1080/24p signal. Please refer to your Blu-ray/HD-DVD manual for complete details on choosing the correct output.
What does 'Weak Signal' mean on my JVC LCD TV?
The “Weak Signal” message on your JVC LCD TV appears when the selected digital channel is too weak to receive or when no signal is being detected for that channel.
What does 'No Program' mean on my JVC LCD TV?
The “No Program” message on your JVC LCD TV appears when the channel is not receiving a signal and you have the Noise Muting function turned OFF and you have a single screen. It moves automatically every two seconds to prevent the screen from burn-in.
| Screen Size | 42 inches |
|---|---|
| Display Technology | LCD |
| Resolution | 1920 x 1080 |
| Aspect Ratio | 16:9 |
| Contrast Ratio | 3000:1 |
| Brightness | 500 cd/m² |
| Response Time | 8 ms |
| HDMI Ports | 3 |
| USB Ports | 1 |
| VGA Port | 1 |
| Component Video Input | 1 |
| Composite Video Input | 1 |
| RF Input | 1 |
| Speaker Type | Built-in |
| Power Consumption | 180W |
| Viewing Angle | 178° |
| Audio Output | RCA |
| Weight | 18 kg |
| Display Type | Flat Panel |
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