CT-21Q91NEX - Television LG - Free user manual and instructions
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| Product Type | CRT Television |
| Brand | LG |
| Model | CT-21Q91NEX |
| Screen Size | 21 inches (53 cm) |
| Display Technology | Color CRT (Cathode Ray Tube) |
| Dimensions (W x H x D) | Approx. 510 x 480 x 460 mm |
| Weight | Approx. 22 kg |
| Power Supply | AC 220-240V, 50/60Hz |
| Power Consumption | 80 W (typical) |
| Inputs | RF Antenna, Composite AV (RCA) |
| Audio Output | Built-in speaker, 3.5 mm headphone jack |
| Teletext | Yes, with memory |
| Sleep Timer | Off, 15, 30, 60, 90, 120, 180, 240 min |
| Auto Channel Search | Automatic tuning |
| Fine Tune | Manual fine tuning available |
| Child Lock | Yes (parental control) |
| On-Screen Display (OSD) | Multilingual menu |
| Remote Control | Supplied (batteries not included) |
| Safety | RoHS compliant, low radiation |
| Cleaning | Unplug before cleaning; use soft dry cloth |
| Spare Parts Availability | Contact LG service center |
Frequently Asked Questions - CT-21Q91NEX LG
How do I connect an external device like a DVD player?
Connect the device's AV output to the RCA input on the back of the TV (yellow for video, red/white for audio). Then press the AV button on the remote to select the input.
Why is there no picture but sound is working?
Check the brightness and contrast settings. If the screen is completely dark, the CRT may be faulty. Also ensure the TV is on the correct input source.
How do I set up the channels automatically?
Press the MENU button, navigate to Channel or Setup, select Auto Tuning or Auto Search. The TV will scan and store all available channels.
How do I use the sleep timer?
Press the SLEEP button on the remote repeatedly to cycle through time settings: Off, 15, 30, 60, 90, 120, 180, 240 minutes. The TV will turn off automatically.
What should I do if the remote control is not working?
First, check the batteries and replace if needed. Ensure there are no obstructions between the remote and the TV's sensor. Try resetting the remote by removing batteries and pressing all buttons.
How can I improve the picture quality?
Adjust the brightness, contrast, color, and sharpness in the picture menu. Use the Fine Tune option to reduce interference. Ensure the antenna is properly connected.
Can I use this TV with a modern digital set-top box?
Yes, connect the set-top box to the TV via the RCA input. The TV will display the signal, but it will not support HD resolution; only standard definition.
What is the teletext function and how do I use it?
Teletext displays text-based information over the TV signal. Press the TEXT button on the remote, then enter a page number (e.g., 100). Use the PAGE UP/DOWN buttons to navigate.
The TV makes a high-pitched noise. Is it normal?
Some CRT TVs emit a faint high-frequency sound due to the flyback transformer. This is normal unless it becomes loud or changes pitch. If concerns, contact support.
How do I safely clean the TV screen?
Unplug the TV first. Use a soft, dry microfiber cloth to gently wipe the screen. Do not use any liquids or harsh chemicals. For stubborn stains, slightly dampen the cloth with water.
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USER MANUAL CT-21Q91NEX LG
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Product information
Brand : LG
Model : CT-21Q91NEX
Category : Television