To Next PageTo Next PageHow to fix coloured patches on JVC AV-21QS27 screen?
If you notice colour patches at the corner of your JVC TV screen, it might be due to a magnetized device, such as a speaker, placed near the TV. Move the device away from the TV. Alternatively, use a magnetically shielded speaker.
Why does my JVC AV-21QS27 TV remote control not work?
If you cannot operate your JVC TV remote control, the batteries may be exhausted; replace them with new ones. Also, make sure you are within seven meters of the TV and pointing the remote at the front of the TV.
How to fix snowy picture on JVC TV?
If your JVC TV displays a snowy picture, check the aerial cable and ensure it is properly connected to both the TV and the antenna.
What to do if AUTO SIGNAL DETECT does not work on JVC AV-21QS27?
If the AUTO SIGNAL DETECT function on your JVC TV isn't working, ensure the function is set to ON. Turn the VCR or DVD player off and then on again. Verify that the video cable is correctly connected to the VIDEO-2 input.
What to do if AUTO SIGNAL DETECT does not work correctly on JVC AV-21QS27?
If the AUTO SIGNAL DETECT function on your JVC TV is not working correctly, check the video cable connection. The issue might be due to some VCR or DVD players outputting the video signal discontinuously.
How to fix poor picture quality on JVC TV?
If you are experiencing poor picture quality on your JVC TV, choose the appropriate color system for your input source. Also, adjust the COLOUR and BRIGHT settings to improve the picture.
Is slight electric shock when touching JVC AV-21QS27 TV screen dangerous?
If you feel a slight electric shock when touching your JVC TV screen, it's due to the static electricity of the picture tube. This will not harm the human body and is not a malfunction.
Why my JVC AV-21QS27 menus cannot be operated?
If you cannot operate the menus on your JVC TV, press the TV/VIDEO button to return to TV mode and then try operating the menus again.
How to fix unclear stereo or bilingual sound on JVC TV?
If the stereo or bilingual sound on your JVC TV is unclear, it may be due to poor TV channel reception. Change the stereo/bilingual mode to mono sound.
How to eliminate double pictures (ghosting) on JVC AV-21QS27?
If you are experiencing double pictures (ghosting) on your JVC TV, this interference might be caused by signal reflections from mountains or buildings. Try adjusting the direction of your aerial or using a different antenna.
Instructions to prevent fire or shock hazard by avoiding rain and moisture exposure.
Rules to observe for personal safety when using the TV, including ventilation and screen care.
Instructions for handling faults, emphasizing unplugging and calling a service technician.
Guide on connecting the TV to an aerial cable and VCR for signal input.
Details on connecting to the TV's rear input/output terminals for various devices.
Instructions for connecting devices to the TV's front video input.
How to program and recall up to four favorite TV channels using color buttons.
Allows returning to the frequently viewed channel or the previous channel.
Method for selecting TV channels using two-digit numbers.
How to select channels using the channel up/down buttons.
Step-by-step guide on navigating and operating the TV's menu system.
How to select the appropriate colour system based on country or region for clear picture display.
Choosing preset picture settings and fine-tuning CONTRAST, BRIGHTNESS, SHARPNESS, COLOUR, and TINT.
Adjusting white balance for better picture matching with video content.
Converting aspect ratio and enabling special features like Blue Back for improved viewing.
Setting the Teletext language group for corresponding programmes.
Enjoying enhanced bass sound that normal speakers cannot reproduce.
Experiencing sound with a wider audience effect.
Adjusting sound levels for different frequencies in USER mode.
Enjoying stereo and bilingual broadcast programmes.
Automatically adjusting volume levels for consistent output across channels.
Selecting an appropriate sound system for abnormal sound issues.
Adjusting the volume balance between left and right speakers.
Choosing sound modes like USER, MUSIC, CINEMA, NEWS, or DRAMA.
Automatically switching input modes between RF and VIDEO-2.
Enhancing picture quality for movie playback in dark room environments.
Reducing picture noise for a clearer image.
Choosing the desired display language for the TV's on-screen menus.
Setting the TV to turn on automatically from standby mode at a specific time and channel.
Setting the TV to automatically turn off to standby mode after a specified time.
Managing beeps for alerts and child lock features for enhanced security.
Configuring the VIDEO-2 terminal setting based on the connected video signal type.
Registering TV channels automatically using the Auto Program feature.
Registering TV channels manually through the Edit menu.
Moving, deleting, and inserting channels in the TV's channel list.
Solutions for issues with no picture and no sound output from the TV.
Solutions for various picture display issues including snow, stripes, ghosting, poor quality, and distortion.
Solutions for unclear, poor, or unidentifiable stereo/bilingual sound output.
Troubleshooting remote control, menu operation, signal detection, and cable connection problems.
Instructions to prevent fire or shock hazard by avoiding rain and moisture exposure.
Rules to observe for personal safety when using the TV, including ventilation and screen care.
Instructions for handling faults, emphasizing unplugging and calling a service technician.
Guide on connecting the TV to an aerial cable and VCR for signal input.
Details on connecting to the TV's rear input/output terminals for various devices.
Instructions for connecting devices to the TV's front video input.
How to program and recall up to four favorite TV channels using color buttons.
Allows returning to the frequently viewed channel or the previous channel.
Method for selecting TV channels using two-digit numbers.
How to select channels using the channel up/down buttons.
Step-by-step guide on navigating and operating the TV's menu system.
How to select the appropriate colour system based on country or region for clear picture display.
Choosing preset picture settings and fine-tuning CONTRAST, BRIGHTNESS, SHARPNESS, COLOUR, and TINT.
Adjusting white balance for better picture matching with video content.
Converting aspect ratio and enabling special features like Blue Back for improved viewing.
Setting the Teletext language group for corresponding programmes.
Enjoying enhanced bass sound that normal speakers cannot reproduce.
Experiencing sound with a wider audience effect.
Adjusting sound levels for different frequencies in USER mode.
Enjoying stereo and bilingual broadcast programmes.
Automatically adjusting volume levels for consistent output across channels.
Selecting an appropriate sound system for abnormal sound issues.
Adjusting the volume balance between left and right speakers.
Choosing sound modes like USER, MUSIC, CINEMA, NEWS, or DRAMA.
Automatically switching input modes between RF and VIDEO-2.
Enhancing picture quality for movie playback in dark room environments.
Reducing picture noise for a clearer image.
Choosing the desired display language for the TV's on-screen menus.
Setting the TV to turn on automatically from standby mode at a specific time and channel.
Setting the TV to automatically turn off to standby mode after a specified time.
Managing beeps for alerts and child lock features for enhanced security.
Configuring the VIDEO-2 terminal setting based on the connected video signal type.
Registering TV channels automatically using the Auto Program feature.
Registering TV channels manually through the Edit menu.
Moving, deleting, and inserting channels in the TV's channel list.
Solutions for issues with no picture and no sound output from the TV.
Solutions for various picture display issues including snow, stripes, ghosting, poor quality, and distortion.
Solutions for unclear, poor, or unidentifiable stereo/bilingual sound output.
Troubleshooting remote control, menu operation, signal detection, and cable connection problems.
This document describes the JVC Colour Television, covering its functions, usage features, and maintenance. The manual illustrates the AV-29SX77 model for explanation purposes, noting that the actual TV may vary in appearance.
The JVC Colour Television offers a range of functions designed to enhance the viewing and listening experience. Users can select various picture and sound modes, customize settings, and manage channels.
Picture Modes: The TV provides several picture modes, including:
Picture Settings: Beyond predefined modes, users can fine-tune individual picture attributes:
White Balance: The TV offers white balance adjustments to match the video type:
Compress (16:9): This feature allows conversion of a standard 4:3 aspect ratio picture to a wider 16:9 aspect ratio, suitable for widescreen content.
Blue Back: The TV can be set to automatically display a blue screen and mute the sound if the signal is weak, absent, or if there is no input from the antenna. This function is available only in RF mode.
VNR (Video Noise Reduction): This function helps reduce picture noise with options:
AI ECO SENSOR / ECO MODE: The TV can automatically adjust screen contrast based on room brightness for better eye care. Options include:
Picture in Picture (PIP) Operation: This feature allows viewing of two screens simultaneously (main and sub-picture).
Sound Settings: The TV provides various sound adjustments:
Sound Modes:
STEREO / I-II (A2/NICAM): Enables listening to stereo or bilingual broadcasts, with options for stereo, monaural, bilingual I (sub I), and bilingual II (sub II). This function is only available in RF mode.
BALANCE: Adjusts the volume balance between left and right speakers.
Remote Control: The remote control is the primary interface for operating the TV. It includes buttons for power, menu navigation, channel selection, volume control, TV/Video input switching, and specific function buttons like RETURN PLUS, DVD MENU, and colour buttons for favourite channels.
TV Buttons: On-device buttons include power, TV/Video input, menu/exit, channel selection, and volume adjustment.
Operating the Menus: The TV uses an on-screen menu system for settings. Users navigate through Top, 2nd, and 3rd menus using directional buttons and an OK/Select button. The DISPLAY button returns to previous pages, and MENU exits the menu.
Initial Setup (Setup Tour): Upon first power-on or after a reset, the TV guides the user through an initial setup process:
Channel Presetting:
Teletext Operation: The TV supports teletext broadcasts, allowing users to view text-based information.
Customized Settings:
Safety Precautions: The manual emphasizes several safety rules:
Troubleshooting: The manual provides a troubleshooting guide for common issues:
Repair: In case of a fault, unplug the unit and call a service technician. Do not attempt to repair it yourself or remove the rear cover.
General| Screen Size | 21 inches |
|---|---|
| Display Technology | CRT |
| Aspect Ratio | 4:3 |
| Remote Control | Yes |
| Tuner | Analog |
| Inputs | Composite |
