naxa NT-3903 39-Inch Class LED HD TV Instruction Manual
- June 6, 2024
- NAXA
Table of Contents
- Safety Information
- Important Safety Instructions
- Safety
- Features
- Introduction
- Accessories
- General Description
- General Description
- Basic Operation
- INPUT SOURCE SELECTION
- BASIC OPERATION
- FRIST TIME INSTALLATION
- PICTURE
- AUDIO
- Time
- SETUP
- SETUP
- LOCK
- CHANNEL
- OSD Menu Operations
- USB Operation
- Troubleshooting
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
NT-3903 39-Inch Class LED HD TV
Instruction Manual
Instruction Manual
PLEASE READ CAREFULLY BEFORE USE
Safety Information
Warning
To prevent fire and electric shock, do not use this plug with an extension
cord, receptacle or another outlet unless the blades can be fully inserted to
prevent blade exposure. Do not expose this appliance to rain or moisture.
Important Safety Instructions
Read these instructions.
Keep these instructions.
Heed all warnings.
Follow all instructions.
Please, unplug the N power cord when the following conditions occur:
-When there is a thunderstorm (Please, pull out the power cord and antenna).
-When cleaning the TV set.
-When the TV set is not used for a long time.
Do not use corrosive depurative when cleaning the TV set.
Do not put the TV set under direct sunlight or near heat.
Do not put a heat source, such as a candle or heater, on top of or near the TV
set.
Leave plenty of space (al least 10cm) around the N set for ventilation.
Place the N set away from where it can be ruined by rain or water (such as
near a window).
Don’t put a container with liquid (such as a vase) on top of the TV set.
Do not move the TV set when the power is on. Do not touch, push or scratch the
surface of the TV set with hard materials or items.
When TV surfaces are dirty, please use a wet cotton cloth or soft cloth with
non-corrosive cleaners to clean it carefully.
Don’t use acetone. toluene or alcohol to clean the TV set.
Be aware and careful of moisture, which can damage inner electronic
components.
When condensed moisture is present, the N screen may appear blurry or spotty.
It is recommended that a technician install the TV set on a wall, if such
placement is desired.
An incorrect wall installation will be unsafe and hazardous.
Do not let children climb on or play around the TV set to avoid falls,
collisions, damages, and injuries.
Do not hit the TV panel with hard objects to prevent damage.
Do not cover the TV set with blankets or other objects when it Is connected to
a power source to prevent overheating and fire.
Batteries shall not be exposed to excessive heat such as sunshine, fire, or
the like.
The mains plug is used as disconnect device from the mains, the disconnect
Safety
Please. Immediately pull out the AC power plug If there is an abnormal sound
or smell or the LED TV has sound but no picture, and contact after-sales
support.
The LED TV should be kept free from rain, moisture, and dust to prevent
electrical shock and short circuits. Do not cover the ventilation openings
with table clothes. curtains, newspapers, etc.
The LED TV should be kept from high-
temperature heating sources or direct sunlight. Good ventilation is required.
Allow 10 cm. between the LED TV and other appliances or built-in cabinet
walls.
When you wipe the front cabinet, please make sure the power plug is pulled out
and use a soft, dry, lint-free cloth and handle it with care. Do not
repeatedly wipe the panel, nor scrape, tap or strike the panel with a hard
object.
Do not wipe the LED TV with any petrol.
chemical or alcohol-based solvents as it will lead to product damage of the
panel and cabinet.
Do not place the LED TV on an unstable surface.
Do not place the power cord or other cables
across a walkway in case it is trampled on. Do not overload the power cord or
power socket. When the power plug is used to disconnect and connect the
device, it should easily into the power source.
Do not disassemble the back cover, as it contains high voltages inside and
will cause electric shock. Only qualified professionals should conduct
internal adjustments, maintenance, and checks.
The TV set should not be subjected to water
droplets, vapor, or splash. This equipment should not be placed on objects
filled with liquids. Do not place flame sources, such as lit candles, on or
near the LED TV. Please, pull out the power plug and contact after-sales
support if there are abnormal objects or water in the TV. Pull out the power
cord and antenna cable during electrical storms so the LED TV Is not damaged
by electrical surges. Keep all people away from the antenna cable during
electrical storms.
Features
- TV adopts TFT LED display screen
- HDTV Compatible (480i, 480p, 576i, 576p, 720p, 10801, 1080p)
- Support American TV Standard 8VSB/Free 64/2560AM,NTSC System, ATSC System
- Connect to computer directly to realize TV/monitor combo.
- Zero X radiation complies to green environment protection requirement
- Advanced Chrome Processing
- Closed captioning/Program Control
- SAP/STEREO/MONO; ATSC.
- HDMI input
- USB Input
Input terminals used for external equipment connection
- One computer VGA/PC Input
- One AV Input
- One EARPHONE output
- One ANTENNA input
- One YPbPr input
- One PC Audio input
- Three HDMI input
- One USB input One
- Coaxial output
- Audio UR output
Introduction
Specifications
Display screen type | Color active matrix LED display |
---|---|
Model | NT-3903 |
The maximum resolution | 1366 x 768 |
Image control | Fine digital control |
Power supply | AC 100-240V-50160Hz |
TV receive system | NTSC System, ATSC System |
Frequency range | Antenna: 2-69; Cable: 2-125 |
Antenna input impedance | 750 (Unbalance) |
Sound output | 2 x8W |
Power supply for remote controller | DC 3V (Two MA size batteries) |
Power consumption | 70W |
Dimensions (LXWXH) | 35.0 x 8.3x 21.8 inch |
Weight (Net weight) | 5.2 kg |
Operation environment temperature | Or.,-40b |
Note: Design and specification modification may be made at any time without prior notice; all data and dimensions are approximations.
Accessories
Please make sure the following items are included with your LED TV. If any items are missing. contact your dealer.
General Description
Overview off front and back panel
- Remote control sensor! Pander indicator
- VOL +/- Press to increase/decrease the volume. In the on-screen menu. use them to move left/right.
- CH +/- Press to change channels. In the on-screen menu. use them to move up/down.
- MENU Press to see an on-screen menu of your TV.
- SOURCE Toggles between all the available input sources
- STANDBY Press the STANDBY button to toggle between normal and standby mode.
- Power input
- EARPHONE Connect a set of phones for private listening.
- COAXIAL Connect to a Digital Audio device.
- AUDIO UR Audio input for external devices, such a camcorder or VCR.
- Y(CVBS)/ Pb! Pr Connect video.
- HDM11 / 2/ 3 Connect to the HDMI jack of a device with an HDMI output
- VGA/PC IN Connect to the video output jack on your PC.
- PC AUDIO Audio input for external devices.
- ANTENNA INPUT Connect to an antenna or cable NTSC 8 ATSC. as
- USB (TV) USB input
- Audio L/R output Connect to a Digital Audio device.
Overview off remote control
- STANDBY: Switch a LED TV when at standby mode or vice versa.
- MUTE: Press to mute the sound.
- SLEEP: Set the sleeping user.
- FAV: Select favorite channels. ,
- FAV W..: Press to watch next/previous favorite program.
- ADD: Add this program to the favorite channels list. ERASE: Delete this program from the favorite channels list.
- LOCK: Press to display the Lock menu
- lime: Press to display the current time.
- UST: Press to display the TV program list.
- FREEZE: Press the freeze the screen.
- EPG: Press to display the EPG menu.
- INFO: Display the charnel interment.).
- CC: Press to display the closed caption.
- PATS: Press to select the audio channels.
- MENU: TV system setup.
- SOURCE: Press to change the input source.
- ARROW buttons: Use to move the cursor up/down/100AM.
- ENTER: Validation key.
- EXIT: Press to exit all menus.
- ZOOM: Press to change the screen scale.
- S.MODE: Press to cycle through the different sound selling.
- VOL +1..: Press to increase/decrease the sound level.
- C11.1-: Press to scan through channels.
- P.MODE: Press repeatedly to cycle through the available video picture modes.
- Number key (0-9): Press 0-9 to select a TV channel directly when you are watching TV. The charnel changes after several seconds.
- Press this button to enter a program number for multiple program channels such as 2-1. etc.
- RETURN: Return to the previous channel viewed.
General Description
Installing Batteries in the Remote Control
Note:
- One loading of batteries will last for 1 year under normal use.
- If you do not intend to use the remote controller for a long period of time, remove them to avoid damage due to leakage.
- Do not use old and new batteries together.
- The batteries shall not be exposed to excessive heat such as sunshine. fire or the like.
Antenna connection
The antenna input impedance of this unit is 75ohm. VHF/UHF 75ohm coaxial cable can be connected to the antenna jack directly, if the antenna cable is a 300ohm parallel flat feeder cable, you need to use the 300ohm775ohm converter to connect the antenna cable to the antenna jack. For details please refer to the following drawing.
Connecting VCR
These instructions assume that you have already connected your TV to an
antenna or a cable TV system. Skip step 1 If you have not yet connected to an
antenna or a cable system.
Follow the instructions
In Viewing a VCR or Camcorder Tape to New your VCR tape. Each VCR has a
different back panel configuration. When connecting a VCR, match the color of
the connection terminal to the cable. We recommend the use of cables with a
Ferrite Core.
- Unplug the cable or antenna from the back of the TV.
- Connect the cable or antenna to the ANT IN terminal on the back of the VCR.
- Connect an RF cable between the ANT OUT terminal on the VCR and the ANT IN terminal on the TV.
- Connect a Video Cable between the VIDEO OUT jack on the VCR and the VIDEO IN jack on the TV.
- Connect Audio Cables between the AUDIO OUT jacks on the VCR and the AUDIO L and AUDIO R jacks on the TV.
- If you have a mono (nonstereo) VCR. use an 11-connector (not supplied) to hook up to the right and left audio input jacks of the TV. If your VCR is stereo, you must connect two cables.
Connecting DVD Player/Set-Top Box
The rear panel jacks on your TV make it easy to connect a DVD to your TV.
Component video separates the video into Y (Luminance (brightness)), Pb (Blue), and Pr (Red) for enhanced video quality. Be sure to match the component video and audio connections. For example, If connecting the video cable to COMPONENT IN, connect the audio cable to COMPONENT IN also. Each DVD player/ST8 has a different back panel configuration. When connecting a DVD player/STB, match the color of the connection terminal to the cable. We recommend the use of cables with a Ferrite Core.
- Connect a Component Cable between the COMPONENT IN (V. PB, PR) jacks on the TV and the COMPONENT (11, PB, PRI jacks on the DVD player.
- Connect Audio Cables between the COMPONENT IN [R-AUDIO-L) jacks on the TV and the AUDIO OUT jacks on the DVD player.
Connecting Digital Audio System
The rear panel jacks on your TV make it easy to connect a Digital Audio
System to your TV.
5.1 CH audio is possible when the TV is connected to an external device
supporting
5.1 CH. We recommend the use of cables with a Ferrite Core.
1. Connect a COAXIAL Cable between the SPDIF jacks on the W and the Digital
Audio Input jacks on the Digital Audio System. When a Digital Audio System is
connected to the SPDIF terminal: Decrease the gain (volume) of the TV, and
adjust the volume level with the system’s volume control.
Connect a USB
Connect a USB 2.0 memory device into the USB slot of this TV for multimedia files playback.
- This USB slot only supports Music (MP3) and Photo (JPG) multimedia files playback.
- This TV is compatible with most USB devices in the market. However, we cannot guarantee the compatibility of all USB devices, due to multiple technology standards used.
Connectin DVD Player/set-top box via HDMI
This connection can only be made if there is an HDMI output connector on the
external device.
What is HDMI?
HMI, or high-definition multimedia interface, is a next-generation interface
that enables the transmission of digital audio and video signals using a
single cable without compression. Multimedia Interface is a more accurate name
for it especially because it allows multiple channels of digital audio (5.1
channels). The difference between HDMI and DVI Is that the HDMI device Is
smaller In size, has the HDCP(High Bandwidth Digital Copy Protection) coding
feature installed, and supports multi-channel digital audio. Each DVD
player/STB has a different back panel configuration. We recommend the use of
cables with a Fenite Core.
1. Connect an HDMI Cable between the HDMI connector on the TV and the HDMI
connector on the DVD player/Set-Top Box.
Connecting
Each PC has a different back panel configuration.
The NOM! jacks do not support PC connection.
We recommend the use of cables with a Ferrite Core.
- Connect a D-Sub Cable between RGB1PC IN connector on the TV and the PC output connector on your computer.
- Connect the PC audio input jack on the TV.
Connecting a headphone
VGA/PC| Up to 1366 x768©60Hz| |
---|---|---|---
COMPONENT| 480i,| 480p.| 576i,| 576p,| 720p,| 1080i,| 1080p
HMI| 480i,| 480p,| 576i,| 576p,| 720p,| 1080i,| 1080p
Basic Operation
Turning the TV on or off
How to turn the TV on or off
- Insert the power cord plug into a polarized AC outlet
- Press di button on the remote control or the POWER button on the LED TV.
- Name picture will be displayed on the screen after 6 seconds. If no signal input, “No Signal” will be displayed on the screen.
- II temporary POWER off is required, press d button on the remote control or POWER button on the LED TV.
- 11 you want to completely switch off the power for this unit, unplug the power cord plug for this unit
- After switching off the unit, you should turn on the TV again at least 5 seconds later.
Status indication lamp
Blue: In power-on mode.
Red: In standby mode.
Auto power off If there is no signal Input in TV mode, the TV will automatically access the standby state in about 10 minutes.
Memory before turning the TV off
The settings of the picture and the preset channels will be memorized at
turning off the unit When being started up again, the unit will work according
to the mode set before being turned off.
INPUT SOURCE SELECTION
Press the SOURCE button to display the Input source list;
Press / button to select the input source you want to watch; Press ENTER
button to enter the Input source;
BASIC OPERATION
- Press the MENU button on the unit top or remote control to display the main menu.
- Press LEFT or RIGHT navigation button to select PicturelAudio/TimelSetup/Lock/ Channel
- Press the DOWN navigation button to enter the submenu page.
- Press the UP or DOWN navigation button to select the option that wants to adjust.
- Press the LEFT or RIGHT navigation button to adjust the selected option to the desired value.
- Press the RIGHT navigation button or ENTER button to enter the next menu page.
- Press the MENU button to return to the previous menu page.
- Press the EXIT button to exit the menu page.
FRIST TIME INSTALLATION
If this is your first time turning on this TV, Setup Wizard will appear on the screen.
- Press the UP or DOWN navigation button to select a preferred item.
- Press the LEFT or RIGHT navigation button to adjust the value.
Menu Language
To choose your menu language.
All/Cable
To choose your signal type: Air, Cable. Cable System To choose your Cable
System: AUTO. STD. IRC, HRC. NOTE: Cable System is adjustable only when your
signal type is set to Cable.
Auto Scan
Highlight Auto Scan, press ENTER to search and store all available channels.
PICTURE
-
Picture Mode
Available Options: User, Standard, Dynamic, Mild. -
Contrast
The value of Contrast can be adjusted from 0-100. -
Brightness
The value of Brightness can be adjusted from 0-100. -
Color
The value of Color can be adjusted from 0-100. -
Tint
The value of lint can be adjusted from -50 to 50.
NOTE: Tint is adjustable only in certain TV systems. -
Sharpness
The value of Sharpness can be adjusted from 0-100.
NOTE: If the value of Contrast. Brightness, Color. Tint or Sharpness has been changed, the picture mode will turn to User automatically. -
Color Temp.
(Color Temperature) Available Options: Normal. Warm. Cool.
AUDIO
-
Sound Mode Available options: User, Music, Movie, Standard.
-
Bass The value of Bass can be adjusted from 0-100.
-
Treble The value of Treble can be adjusted from 0-100.
-
Balance The value of Balance can be adjusted from -50 to 50.
NOTE: If the value of Bass or Treble has been changed, the sound mode will turn to User automatically. -
Surround This item is used to turn on/off the Sound Surround function.
-
AVC (Auto Volume Control) Available options: On, Off.
-
SPDIF Type This item is used to select the preferred SPDIF audio output type. Available Options: Off, RAW, PCM.
-
Audio Language This item is used to select the preferred audio language. NOTE: This item is adjustable only for digital programs.
-
Accessibility This item is used to make accessibility for people who are blind or visually impaired.
Voice Guide
Turn on/off voice Guide for some texts on screen.
Voice Guide: On, Off
Volume: Weak, Middle,
Strong Speed: Weak, Middle,
Strong Pitch: Weak, Middle, Strong
Video Description
Turn on/off Video Description.
Time
-
Sleep Timer
Available Options: Off, 5 min, 10 min, 15 min, 30 min, 45 min, 60 min, 90 min, 120 min, 180 min, 240 min. -
Time Zone
Available Options: Eastern, Central, Mountain, Pacific, Alaska, Hawaii, Altlantic. -
Daylight Saving
Time Available options: On, Off. NOTE: This item is adjustable only for digital programs. -
Clock
When an available digital program is present, this unit will get Date and Time information automatically from current program. And it’s not user adjustable.
SETUP
-
Menu Language
This item is used to select the preferred OSD menu language. -
Transparency
This item is used to turn on/off the Transparent OSD menu. -
Zoom Mode
This item is used to select the preferred zoom mode of the display screen. Available Options: Normal, Wide, Zoom, Cinema.
NOTE: The available zoom mode may be different for the different input sources. -
Noise Reduction
Available Options: Off, Weak, Middle, Strong. -
Advanced
This item is adjustable only for the PCNGA input signal. -
Closed Caption CC
Mode Available options: CC on Mute, Off, On. Basic Selection Available options: CC1, CC2, CC3, CC4, Text1, Text2, Text3, Text4.
SETUP
Advanced Selection
Available options: Service, Service2, Service3, Service4, Service5, Service6.
Option
Mode Available options: Default, Custom.
Font Style
Available options: Default, Font 0, Font 1, Font 2, Font 3, Font 4, Font 5,
Font 6, Font 7.
Font Size
Available Options: Default, Normal, Large, Small.
Font Edge Style
Available Options: Default, None, Raised, Depressed, Uniform, Left Shadow,
Right Shadow.
Font Edge Color
Available Options: Default, Black, White, Red, Green, Blue, Yellow, Magenta,
Cyan. FG Color
Available Options: Default, White, Red, Green, Blue, Yellow, Magenta, Cyan. BG
Color
Available Options: Default, Black, Red, Green, Blue, Yellow, Magenta, Cyan. FG
Opacity
Available Options: Default, Solid, Flashing, Translucent, Transparent. BG
Opacity
Available Options: Default, Solid, Flashing, Translucent, Transparent.
7. DLC
This item is used to turn on/off Dynamic Luminance Control.
8. OverScan (HDMI mode only)
Turn on/off OverScan if Users found the image wasn’t fully displayed on the
screen.
9. HDMI CEC
– Press the RIGHT navigation button or ENTER button to enter it.
HDMI CEC: turn on/off HDMI CEC.
Auto Standby: if this function is enabled, the external connected CEC
device will turn to Standby automatically after turning off this TV.
Auto TV On: if this function is enabled, this TV will power on
automatically after turning on the external connected CEC device.
HDMI ARC (Audio Return Channel): if this function is enabled, the users
can use an external amplifier or audio decoding device featured with ARC.
Note: “ARC” function in “HDMI1” port only. Device Control: turn on/off
device control. Device List: list externally connected devices.
10. Restore Default This item is used to reset to factory default settings.
LOCK
• Input the password by pressing the number buttons on the remote control.
NOTE: The factory default password is 0000.
-
Change Password
– Press the RIGHT navigation button or ENTER button to enter it.
– Press the number buttons to input the new password and input it again to finish password changing. -
System Lock
This item is used to turn on/off the system lock. -
US TV
– Press the RIGHT navigation button or ENTER button to enter it.
– Press navigation buttons to move the cursor.
– Press ENTER button to block or unblock it. MPAA Available options: N/A, G, PG, PG-13, R, NC-17, X. -
Canada Canada English Available options : E, C, C8+, G, PG, 14+, 18+. Canada French Available options: E, G, 8 ans+, 13 ans+, 16 ans+, 18 ans+.
NOTE: US, Canada, RRT Setting, and Reset RRT items are adjustable only when System Lock is On. -
RRT Racing
This item is available only when viewing programs that contain related Advance Rating information. -
Reset RRT
This item is used to reset RRT Rating. -
Hotel Menu
-Press the RIGHT navigation button or ENTER button to enter it.
Hotel Mode: turn on/off Hotel Mode.
Boot Setting : set Picture Mode, Default Volume, Max Volume,
Boot Source. (Boot Channel & Channel Select won’t work if no TV signals.)
Hotel Lock : turn on/off Tuner Lock, Keypad Lock, or Menu Lock.
Power Save: select desired Power Save time.
TV to USB : export data to a USB device.
USB to TV: import data from a USB device.
Reset Hotel Setting: reset above hotel setting.
CHANNEL
-
Air/Cable
This item is used to select the preferred signal receiving type. -
Auto Scan
-Press the RIGHT or ENTER button to enter it.
2.1 Cable System This item is used to select the preferred cable system. Available Options: AUTO, STD, IRC, HRC. NOTE: This item is adjustable only when your signal type is set to Cable. -
2 Start to Scan
– Press the RIGHT or ENTER button to start auto-scanning.
– Press MENU or EXIT button to exit auto channel searching. -
Favorite
– Press the RIGHT or ENTER button to enter it.
– Press the UP or DOWN navigation button to select a preferred channel.
– Press ENTER button to label the selected channel as a favorite one or not. -
Show/Hide
– Press the RIGHT or ENTER button to enter it.
– Press UP or DOWN navigation button to select a preferred channel.
– Press ENTER button to show or hide the selected channel. -
Channel No.
– Press the LEFT or RIGHT navigation button to select the preferred channel number. -
Channel Label
– Press the RIGHT or ENTER button to enter it.
– Press the LEFT or RIGHT navigation button to move the cursor.
– Press UP or DOWN navigation button to adjust the value.
NOTE: If no available channel is present, Favorite, Show/Hide, Channel No., and Channel Label will not be adjustable. -
DTV Signal This item is not user adjustable.
OSD Menu Operations
- Press the SOURCE button on unit top or remote control to set the unit in VGA mode.
- Press the MENU button to display the main menu and select Setup item. Then press the DOWN navigation button to enter the Setup menu page.
- Press the UP or DOWN navigation button to select Advanced and press the RIGHT navigation button or ENTER button to enter it.
- H-Pos (Horizontal Position) Available range: 0-100.
- V-Pos (Vertical Position) Available range: 0-100.
- Clock Available range: 0-100.
- Phase Available range: 0-100.
- Auto If this item is entered, it will adjust the PC screen automatically.
USB Operation
-
Before following operations, insert a USB memory device first, which contains Photo and Music files.
-
Press the SOURCE button on unit top or remote control to set the unit in USB mode.
-
Press the LEFT/RIGHT navigation button to select Photo/Music in the main menu.
-
Press the UP/DOWN navigation button to select the preferred file.
Photo Playback
– Select Photo item in the main menu.
– Press UP/DOWN navigation button to select the preferred folder/file and
press ENTER button to enter a folder or play the selected
file.
During normal playing:
– Press the UP/DOWN navigation button to play the previous/next photo.
– Press the LEFT/RIGHT navigation button to rotate a photo counterclockwise/
clockwise. – Press the EXIT button to return to file selecting page.
Music Playback
– Select the Music item in the main menu.
– Press the UP/DOWN navigation button to select the preferred folder/file and
press ENTER button to enter a folder or play the selected file.
During normal playing:
– Press the INFO button to display/hide the toolbar.
– Press the LEFT/RIGHT navigation button to select the
preferred option and press ENTER button to confirm it.
Troubleshooting
If you have any problem, check the countermeasures for each symptom listed below. The following symptoms may have been caused by inappropriate adjustment rather than actual malfunction of the unit. If the trouble persists, contact the service center.
Symptoms | Possible solutions |
---|---|
No power | Please check the power cord is plugged in. |
Unplug the power cord and plug it in after 60 seconds and restart the TV.
No picture| Please check the antenna connection.
The station may experience problems, please tune to another station.
Please adjust the settings of contrast and brightness.
Good picture but no sound| Please increase the volume.
Please check TV is under mute mode, press the MUTE button on the remote
control.
Please check sound settings.
Good sound but abnormal color or no pictures| Please check the antenna
connection.
No remote control| Batteries of the remote control may have been exhausted, if
necessary, please change the batteries.
Clean the remote control lens. The distance between LED TV and remote control
should be within 8m.
Fullscreen flickering under VGA| V-HEIGHT value may be set too big, restart
the computer and enter safe mode, then set monitor parameters to correct value
according to adjustment description.
Horizontal stripes under VGA| Sample phase may be deflected, adjust phase
according to picture position.
Colored dots may be present on the screen| This product is a high-resolution
LED display device and a few cell defects can occur in the manufacture of the
LED. Several colored dots visible on the screen would be acceptable.
inline with other LED manufacturers and would not mean that the LED is faulty.
We hope you will understand that it could not be changed or refunded.
Picture defects and the reason
Snowy Picture
The snowy picture is usually due to a weak signal. Adjust antenna or
install an antenna amplifier.
Double Image or Ghosts
Double images are usually caused by reflections from tall buildings. Adjust
the direction of the antenna or raise it.
Radio Wave Interference
Wave patterns are moving on the screen, which is usually caused by nearby
radio transmitters or short-wave receiving equipment.
High-Temperature Electrothermal Interference
Diagonal or herringbone patterns appear on the screen or part of the
picture is missing. This is probably caused by high-temperature electrothermal
equipment in a nearby hospital.
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