FAQs

1． Volume can't adjust

1)  Check whether the volume control button of the remote control works normally.

2)  Check whether the volume control button on the TV works normally.

3)  Make a factory reset to see if it is restored or get your TV service

2．Serious distortion of sound or intermittent sound

1)  If the current signal source is USB, please confirm whether there is a similar problem when playing the corresponding multimedia file(s) on the PC. If yes, the problem is due to the multimedia file(s); otherwise, please contact the service center directly

2)  If the current signal source is TV, please confirm whether there is a similar problem when playing other programs. If there is no any problem, this problem is due to the programs.

3)  Please call service center when your TV not ok after above operation.

3． No sound connected with PC

1)  Check whether connect the audio cable from PC, as VGA cable only carries video and picture information, no audio information.    

2)  Check whether you select “PC” using the source button on you remote control, or you can connect your TV using a HDMI cable if you PC has a HDMI connectors, as HDMI can transport digital video and digital audio together.

1．  Power on Failure

1) Check the AC cord of TV is plugged in or not

2) Disconnect the plug and reconnect to the socket after 60 seconds, to check if the TV can be turned on

3) Check If the TV can be turned on via panel buttons, fails via remote control,

l  If yes, please replace the new battery and confirm if it is ok, if still not, exchange new remote control

4) Check If the TV can be turned on via remote control, fails via panel button

l  If yes, please check if the panel buttons are locked

5) Please call service center when your TV not ok after above operation.

2．  Why does TV switch on automatically, when the same has been switched off through remote?

1) Check if you set the time in the clock menu- on time, as TV will be switched on when the set on time reach.

a.   Cancel the on time that you set.

2) Check if you set the time in the clock menu-off time, as TV will enter standby mode when the set off time reach.

a.  Cancel the off time that you set.

3) Check if there is no signal Within 15 minutes, as the TV will auto sleep under this condition. but This function is not available in all models.

4) Please call service center when your TV not ok after above operation.

1．  How to connect PC

1)  Be sure both the TV and computer are set to Power off.

2)  Connect VGA cable and audio cable between PC and TV.

3)  Power on your PC, please set your PC resolution according to following format (PC support timing) 

4)  Power on the TV, press source menu to select PC source

5) If you connect laptop PC, the same process as Step1 and Step2, then press Fn+F3 in laptop to switch to PC source. Perhaps some laptop is not F3, please select the correct key has PC icon. Also set your PC resolution according to following format (PC support timing) 

Remark: You can use only HDMI cable connect TV and PC, because HDMI can carry audio and video signal together. VGA cable only carries video signal.

2．  How to increase the size of video from 4:3 to 16:9 resolution

1)  Set the picture proportion, press the button to select 4:3/16:9/auto/wide/zoom (in some models key name is aspect ratio)

2)  You can quickly select the desired mode using the SCREEN or ASPECT button on the remote control. Choose 4:3 when you want to view a picture in an Original 4:3 aspect ratio with grey bars appearing down both the left and right sides.

3．  How to connect RF

1) Connect the ANT IN (AIR/CABLE) jack on the back of your TV

 2) Then connect the other end of the cable into the antenna or cable TV wall outlet

  

Note: To improve picture quality from an antenna in a poor signal area, install a signal amplifier.

4． How to connect TV to network

1) Prepare network connection and cable

2) Connect the end of cable in back of TV

3)  Connect the other end of cable in the LAN port

1．  What is the different between FULL HD and HD?

	Image Resolutio	Picture Quality
FULL HD	1920*1080	207 ten thousand pixels
HD	1366*768	105 ten thousand pixels

1)  Full-HD is the short for Full High Definition, 1920 x 1080(including 1080i and 1080p) pixels, i is interlace, p is progressive, 1080p is higher picture quality than 1080i.

2) HD is the short for High Definition, both horizontal and vertical scanning come up to 720 can be called HD TV.

2．  What is HDMI

High-Definition Multimedia Interface, HDMI is an efficient and compact way of transferring audio / video signals from an HDMI compliant device to another compatible device, for example : Smart TV, Smart Phones, Video Projector or Computer Monitor.

3． What are Pixels

A pixel (picture element) is the smallest piece of information in an image. Pixels are normally arranged in a regular 2-dimensional grid, and are often represented using dots or squares. Each pixel is a sample of an original image, where more samples typically provide a more accurate representation of the original.

The intensity of each pixel is variable in color systems, each pixel has typically three or four components such as red, green and blue, or cyan, magenta, yellow and black.

4．  What is Screen Resolution

The Resolution of a CAIXUN television or display device is the number of distinct pixels in each dimension that can be displayed. The displayed resolution is controlled by all different factors in cathode ray tube (CRT), flat panel or projection displays using fixed picture-element (pixel) arrays.

It is usually quoted as width × height, with the units in pixels: for example, "1024 × 768" means the width is 1024 pixels and the height is 768 pixels

Televisions are of the following Resolutions as follows : 

Standard-definition television (SDTV) :

l  480i (NTSC standard uses an analog system of 486i split into two interlaced fields of 243 lines)

l  576i (PAL, 720 × 576 split into two interlaced fields of 288 lines)

Enhanced-definition television (EDTV) :

l  480p (720 × 480 progressive scan)

l  576p (720 × 576 progressive scan)

High-definition television (HDTV) :

l  720p (1280 × 720 progressive scan)

l  768p ( 1366X768  progressive scan) 

Full High-definition television (FHDTV ) : 

l  1080i (1920 × 1080 split into two interlaced fields of 540 lines)

l  1080p (1920 × 1080 progressive scan)

Ultra-high-definition television (UHDTV) :

l  2160p/4K (3840 × 2160 progressive scan)

l  4320p/8K (7680 × 4320 progressive scan)

5． What is DLNA (Digital Living Network Alliance)?

1)  DLNA (Digital Living Network Alliance) is a standard used by manufacturers of consumer electronics to allow entertainment devices within the home to share their content with each other across a home network without a complicated configuration process.

2)  Some striking features of DLNA are

l  The Digital Living Network Alliance is an international, cross-industry collaboration of consumer electronics, computing industry and mobile device companies.

l  Members of DLNA develop a concept of wired and wireless interoperable networks where digital content such as photos, music, and videos can be shared through consumer electronics (CE), personal computers (PCs), and mobile devices in and beyond the home.

l  The current guidelines expand the capabilities of the DLNA-defined network to include more device classes and functional capabilities—including printers, mobile devices, controllers, uploaders and downloaders.

6．  What is the benefit of LED over LCD ?

   

7． Which cable is the best to connect DVD or Computer to TV

HDMI is the best cable； HDMI can transport digital video and digital audio together

8．  Network Bandwidth Recommendation for Netflix， Generally, the network bandwidth requirements are as follows

1) Recommended SD speed (standard definition) - > 3 Mbps

2)  Recommended HD (high definition) speed - > 5 Mbps

3)  Recommended Ultra HD / 4K speed - >25 Mbps
You can test download speed by visiting SpeedTest.net or Speed Of. Me.
Please ensure your network bandwidth meets the minimum speed requirements. If your network bandwidth cannot meet the requirements, please contact your Network Agency to check for your network bandwidth.

Keypad can't work normally

1) Check if you set the child lock, as the keypads will not response after setting the child lock

2)  Please call service when your TV not ok after above operation.

1．  Which video format can be played through USB  ？

Models	MOVIE	MUSIC	PHOTO	TEXT
ES50S1A	mpg.mepg.dat.vob.mkv.mp4.mov.flv.3gp.3gpp.ts.m2ts.avi	mp3.wav.aac.m4a.ogg	jpg.jpeg.bmp.png.gif.tiff	txt
ES55S1A
ES65E1A
ES75E1A
EC50S1A
EC55S1A
EC65E1A
EC75E1A
EC43S1UA
ES43S1UA
EC43S1A
EC24Z2	mpg.avi.ts.mov.mkv.dat.mp4.vob.rm.rmvb	mp3.wma.m4a.aac	jpg.jpeg.bmp.png	txt
ES24Z1
ES32S1N	avi.mp4.mov.mpg.mkv.dat.vob.rmvb.ts.trp.tp	mp3.wma.wav.m4a.aac	jpeg.MPO.png	txt
EC32S2N

 

2．  The U dish and or mobile hard dish cannot be identified by TV USB.

1)  The video or audio format files supported by the TV are reflected in the streaming media part of the user manual. As long as the audio or video files in the supported format are copied on the U disk or mobile hard disk, after plugging in the USB port on the TV, Press the “source” key on the remote control, select the streaming media option, press the OK or OK button, and then select the corresponding file in the U disk or mobile hard dish to play .

2)  For some models USB when you plug in U dish or a mobile hard dish, the TV screen will prompt "There is a new device inserted", then press confirm or OK to enter the corresponding file, and then select the corresponding file to play.

3)  If it can't be played, please initialize the U disk or mobile hard disk, and convert the file downloaded from the computer into a supportable format file reflected on user manual.

4)  If there are no problems in the inspection above, please call service center.

3．  USB not working

1)  Check if the corresponding USB channel is selected. Try to update a U disk test

2)  Change another U disk.

3)  Access to TV side another USB port.

4)  Restart the TV.

5)  Make a factory reset to see if it is restored.

1．  No picture no sound

1)  power supply unstable

a.  Check if the power is available by try to connect the same power with other home appliance.

b.  Check if the power switch is opened

2)  No signal

a.  Check if the signal is available

3)  Please call service centre when your TV not ok after above operation

2． Normal picture but no sound

1)  Depress the volume button; check if volume is too lower.

2)  Check whether pressed the mute button, try to depress it again.

3)  Turn to another program to see whether it's a single problem.

4)  Check if it has inserted an earphone.

5)  Please call service center when your TV not ok after above operation

3．  Sound is present, but picture dose not appear or discolored

1)  Try to adjusting the contrast and brightness

2)  Please call service centre when your TV not ok after above operation

4．  Normal picture but with noise

1)  Check if the signal cable is well connected and without poor contact, and readjust the connection

2)  Check the sound system if it is correct

3)  Check if the signal cable is aging, and replace the high-quality signal cable.

4)  Check if there are a variety of electrical equipment (DVD, power amplifier, set-top box, etc.) plugged in the same power socket with TV. It is best to separate and not share

5)  Check whether there is interference from other electronic devices near the TV, such as razors, induction cookers, etc., please remove the electronic devices or change the TV to another room and location for observation.

6)  If there are no problems in the inspection above, please call service center.

5．  Picture flickering

1)  Check if the input signal is normal and without blinking.

2)  Change the TV system.

3)  The flickering picture on your TV may be caused by other electronic devices (cell phones, cordless phones, rotating fans, speakers, etc.) that are too close to the TV, or by devices plugged into the same circuit as the TV is connected in.

4)  Try moving the offending devices further away from the TV.

5) If the suggestions above do not resolve your TV flickering problem, then most likely the backlight in your TV is failing and you will have to get your TV serviced.

6． The picture color is abnormal, with large area of watermarks

1)  If the current signal source is USB, please confirm whether there is a similar problem when playing the corresponding multimedia file(s) on the PC. If yes, the problem is due to the multimedia file(s); otherwise, please contact service center directly.

2)  If the current signal source is TV, please confirm whether there is a similar problem when playing other programs. If there is no any problem, this problem is due to the programs; otherwise, please contact service center directly.

7．  TV displays a black screen and the standby LED lights up

1)  Check the battery of the remote control to ensure that the remote control works well when you press the "Power" button on the remote control.

2)  If the TV still cannot be started after pressing the “Power” button on remote control, press the “Power” button on TV, to check whether the TV works normally.

3)  Please call service center when your TV not ok after above operation.

8．  Some times pictures don’t come on full screen when play through USB

1)  Select the full screen mode

2)  If the pictures don’t come on full screen when you select the full screen mode, it indicates the picture format in your USB can’t come on full screen. Please try to change others file

9． How to do when the TV displays Blue screen

1)  Re-connect the antenna or signal wire, as there will be blue screen when the signal is cut off.

2)  Try to select other modes to find the correct signal source

       

10．  No colors

1) Check if the input signal color is normal.

2)  Adjust the Color in the menu if the project is back to normal

3)  Switch between color systems and try different color systems.

4)  Restart the TV.

5) Make a factory reset to see if it is restored.

11．   Line on the screen

1)  Check if there are some interference objects near the TV then move away the interference objects.

2)  Reconnect the signal wire.

3)  Open the back cover to reconnect the LVDS wire (the wire connected panel and main board)

4)  Please call for service if there is still line on the screen after above operation, perhaps panel or LVDS wire defective.

12．  Poor picture quality

1) Check the signal connections.

2)  Check if the channel is tuned normally.

3)  Adjust the picture settings, brightness, color, sharpness and contrast

4)  Make sure that the TV is not located close to electrical appliances that may emit radio

frequency interference.

5)  Please call service when your TV not ok after above operation

13． Snow picture and noise

There will be snow picture and noise when signal wire is loosened or signal is weak (less than 60db).

Solution:

1) Connect the antenna or signal wire again.

2) If only some channels have snow picture and noise, but the other channels are normal, this may be the signal problem.

3) If the local signal is weak you can use a signal amplifier.

4) Please call service when your TV not ok after above operation.

 

14．  Double or  phantom images

1)  Check if there are high buildings or mountains close to where you are ,you can adjust the image through manual operation: consult instruction of Vernier regulation ,or adjust the direction of the external antenna

2)  If you use an indoor antenna, signal reception may be more difficult under certain circumstances. Adjust the direction of the antenna for optimum reception. If this does not improve reception, you may have to switch to an external antenna.

3)  Please call service centre when your TV not ok after above operation

15． Why does my newly purchased flat-panel TV, the Portrait deformed and cannot be watched normally

1)  This phenomenon is not caused by the malfunction of the TV itself. It is due to the fact that most ordinary TVs currently receive 4:3 analog signals, but all flat-panel TVs now use 16:9 screens, different signal ratio and display ratio caused this issue. But usually, 16:9 screen TV will also have other image modes, such as program source mode, which displays the received signal in the same proportion, and the display ratio depends on the program source. That is, if the program source is 4:3, it will display 4:3; if the program source is 16:9, it will display 16:9.The image distortion phenomenon of flat-panel TVs is mainly because the display format is 16:9, which is different from the 4:3 of ordinary color TVs. The main reason is that the display screen is made with a 16:9 aspect ratio, so the image effect is relatively flat and people will change fat. Tablets generally rarely shifting. You can check the  image aspect ratio mode on the remote control if it is zooming in, if yes, there will be a phenomenon that the image is enlarged to that the logo can only be seen halfway or not. You can adjust the display format to 16:9.

2)  If there are no problems in the inspection above, please call service center.

16．  No pictures or full pictures connected with PC

1)  Check whether the TV has the "VGA" function, and if the cable is connected to the VGA port correctly, or if the cable is bent in some place

2)  Check whether the PC resolution fits the TV or not

17．  Vertical line blinking connected with PC

1)  Enter the main menu, and adjust the vertical placement to eliminate the vertical line

18．  Horizontal tearing connected with PC

1)  Enter the main menu, and adjust the horizontal placement of the screen to clear any horizontal line

19．  Screen is too bright or dark connected with PC

1)  Adjust the brightness or contrast in the main menu.

20．  No response when connected to PC

1)  Check if the PC’s display resolution is set to a compatible resolution for the TV.

21． Random noise / disturbance appearing on the screen when connected to HDMI

1)  If random noise appears on the screen, it means that TV does not support HDCP

(High-bandwidth Digital Content Protection).

2)  The HDMI cable might have developed some issues, please try changing the cable.

3)  The resolution set in the TV might be higher than the content being played.

22． There is no signal on the screen when connected to HDMI.

1)  Pls check the HDMI wire contacts are in good condition.

2)  Pls try changing the cable

3)  Pls check the broadcast equipment HDMI output is normal.

4)  Pls change the TV side in another HDMI inputs

23．  Lines appearing when a TV connected to the RCA port

1)  Please check the cable you using if it is in good quality.

1． Network Upgrade failed or No network upgrade prompt

1) Please check whether the TV network connection is in normal condition.

2)  Try to manually operate the TV for network upgrade again.

3)  If the network upgrade operation fails more than three times, it is recommended to try the network upgrade again in other time periods.

4)  Please call service center when your TV not ok after above operation.

2．  TV cannot be turned on after network upgrade

1) Please turn off the power for 30 seconds, then reboot and check if the TV is working properly

2)  In case that TV still cannot be turned on, please call service center

3． How to do when Incomplete network upgrade

1)  Please turn off the power for 30 seconds, then reboot and check if the TV is working properly.

2)  If the TV can be started normally, please try network upgrade again with good network. Do not power off during the upgrade process.

3)  Please call service center when your TV not ok after above operation.

 Unable to search for Wi-Fi hotspot

1) Please check if the TV WIFI switch is on.

2) Please check whether other devices (including smartphone, computer, etc.) around you can search for this wireless hotspot.

a.  If your smartphone or computer cannot search for the wireless hotspot, please check your wireless router: Is the wireless feature on? Is SSID hidden? If the wireless function of your wireless router is set to on, but you select to hide the SSID, you will not be able to search for the wireless router's network name; therefore, you should set your wireless router not to hide the SSID, then power off and restart the wireless router, then your devices will be able to search for wireless hotspots.

b.  If your smartphone or computer can search for the wireless hotspot, please check whether the TV is within the coverage of the Wi-Fi signal. If your TV is away from the wireless router, there is no Wi-Fi coverage; therefore, you have to adjust the location of your wireless router or TV to make sure that your TV is within coverage range of the wireless signal. Please do not have your wireless router and TV be separated by several walls, preventing for affecting the Wi-Fi signal.

3)  Please turn off and restart your wireless router. It is recommended to turn off the wireless router, cut off the power, and wait for 30 seconds. Then connect the power and restart to search Wi-Fi signal again.

4) Please turn off and restart the TV. It is recommended to turn off the TV, cut off the power, and wait for 30 seconds. Then connect the power and restart the TV to search Wi-Fi signal again.

5)  Make a factory reset to see if it is restored.

6)  If you have tried all the steps above, but this problem cannot be solved, please call service center