Connecting an antenna or cable TV (no box)
On your TV
To connect an antenna or cable TV (no box):
1 Make sure that your TV's power cord is unplugged and all connected equipment is turned off.
2 Connect a coaxial cable (not provided) to the ANT/CABLE jack on the back of your TV and to the antenna or
cable TV wall jack.
3 Plug your TV's power cord into a power outlet, then turn on your TV.
4 Press INPUT to open the INPUT SOURCE list.
to highlight TV, then press ENTER.
6 If you cannot tune to channels you know exist, scan for channels. See
Use a coaxial cable to eliminate interference and noise from radio
Do not bundle the coaxial cable with the power cord or other cables.
If the antenna is not installed correctly, contact qualified service
If the signal level for a channel is weak, the picture may be distorted.
If the picture quality is good on some channels and poor on others, the
If you connect to cable or satellite TV without a set-top box and
Many high-definition (HD) channels upscale standard-definition (SD)
Back of TV
personnel to correct the problem.
Adjust the antenna or use a highly directional outdoor or set-top
antenna with a built-in amplifier.
problem may be caused by a poor or weak signal from the broadcaster
or cable TV provider.
experience poor picture quality, you may need to install a set-top box to
improve signal reception and picture quality. Contact your cable or
satellite TV provider about upgrading to a set-top box.
content. The picture displayed on your TV is still displayed as SD, thus
the picture quality will not be as clear or crisp as it would be if the
content was originally recorded in HD.
Antenna or cable TV
LCLBU Sharp 42" LED TV
"Automatically scanning for
How to Connect a Sharp LCD TV to a PC
By Jeff Grundy
Sharp produces a complete line of LCD TVs that produce a quality picture and offer many innovative features. Although many Sharp LCD models don’t offer the most cutting-edge technology, they generally provide the features that most users need and want. One such feature is the ability to use a Sharp LCD TV as an external monitor for a desktop or laptop computer. Regardless of the Sharp LCD TV model you own, connecting it to a PC and using it as a second monitor generally requires no more than the right cable and a few mouse clicks in Windows.
Select the appropriate cable type for connecting the Sharp LCD TV to your PC. Depending on the Sharp model you own, the unit may have only one port type or it may have up to three port types you can use to connect the TV to a PC. Less expensive Sharp TVs may have only a VGA or DVI port for connecting to a computer. High-end Sharp models may have three different connector types: DVI, VGA and HDMI. Locate the video-out port on your PC and determine its type. If you have a higher-end PC, it may have an HDMI port that resembles a large USB port. Otherwise, it probably has a white DVI port or blue VGA connector. If the PC has an HDMI port, use it to connect the PC and Sharp LCD TV as it supports HDTV video and digital audio over a single cable connection. If the PC does not have an HDMI port, you must use either a DVI or a VGA cable. Like HDMI, DVI also supports HD video, but requires that you use a separate cable for audio. VGA is an analog-only connection type, does not support HDTV resolutions and requires a dedicated audio cable.
Shut down the PC and power off the TV. Connect one end of the video cable to the DVI, HDMI or VGA video-out port on the PC, and connect the opposite end to the matching input port on the Sharp LCD TV. Note the port name on the TV used to connect to the PC -- i.e. DVI1 or HDMI1.
Connect the audio cable to the TV and computer if using a DVI or VGA video cable. Plug the small end of the mm-to-RCA audio adapter cable into the "Audio Out" or "Speaker" port on the PC computer. Connect the red and white RCA plugs on the opposite end of the audio cable into the matching colored "Audio In" RCA ports on the TV. If using an HDMI cable to connect the PC and TV, you do not need to use an audio adapter cable for sound.
Power on the TV and then the PC. Press the "Input" or "Source" button the Sharp remote control a few times until the name of the port used to connect the TV to the PC appears on the TV screen. After selecting the appropriate input source on the remote, the PC display should appear on your TV. However, if connecting the TV to an older PC or laptop, the computer display may not appear on the TV until you log in to Windows.
Go to the PC and click "Start | Control Panel | Display | Change Display Settings.
Click the monitor icon labeled "2" in the "Change the Appearance of Your Displays" section. If no monitor icon labeled "2" appears in the window, click "Detect" to refresh the display. Two monitor icons -- one with "1" and the other "2" -- should appear in the display window.
Click the "Multiple Displays" drop-down menu and select the "Extend These Displays" option. Click "Apply" and select "OK" to save the multi-display configuration settings.
Launch a game, media application, Web browser or other program on the PC. Click and hold the top of the application window, drag it to the right and drop it onto the Sharp LCD TV screen. View and use the window on the Sharp TV screen just as you would any other monitor.
- You can also access the "Extend These Displays" option by pressing the "Windows-P" keys to display the Easy Display Switcher pop-up window.
- If connecting an older laptop to your Sharp LCD TV, you may need to press a pair of function keys before the computer displays on the TV. To enable the Sharp TV display with the laptop, press the "Fn" key and the key with a small icon of a monitor on it.
Jeff Grundy has been writing computer-related articles and tutorials since Since that time, Grundy has written many guides to using various applications that are published on numerous how-to and tutorial sites. Born and raised in South Georgia, Grundy holds a Master of Science degree in mathematics from the Georgia Institute of Technology.
It is very disappointing when you invest money in a TV, only for it to stop working. If you have a Sharp TV that won’t turn on, has no sound, has no picture or is flashing, it is more than likely that you can fix the issue yourself. This guide will help you with these common issues so that you can continue using your Sharp TV.
Many issues with your Sharp TV can be fixed with a firmware update or by resetting the TV. You can also check the TV has power, the TV is well-ventilated, the remote is working, all connections to and from the TV are working and that the settings on your TV and connected devices are correct.
I will go into each of these solutions in more detail below and explain exactly which settings you need to change to fix your TV. You will also find basic troubleshooting for each issue that could save you time.
Sharp TV Not Working
When you are faced with a Sharp TV that is not working, the standard troubleshooting methods include performing a hard reset, a firmware update or a factory reset. You can find how to do each of these below.
One common issue with Sharp TVs is that they tend to malfunction if there is a power outage or power surge. Performing a hard reset will clear the errors from the TV’s memory without erasing any of your downloaded content or preferences.
Step 1: Turn off the TV and all connected devices.
Step 2: Unplug the TV from the power.
Step3: Press and hold the power button on the TV for 30 seconds.
Step 4: Wait another 10 minutes with the TV unplugged.
Step 5: Plug the TV and devices back in.
Step 6: Turn on the TV.
Keep your TV’s firmware up to date to fix any bugs that might occur in previous models of the firmware.
Step 1: Press the ‘Menu’ button on the remote.
Step 2: Navigate to Settings > Support > Check Software Update
Step 3: If a new version of the firmware is available, confirm the installation.
A Sharp TV can be reset to factory settings in one of two ways. Keep in mind that a factory reset will erase all downloaded content and your saved preferences. However, this is the most effective at clearing errors in your TV.
To reset the TV without a remote, follow the steps below.
Step 1: Unplug the TV from the power.
Step 2: Hold down both the ‘Channel Down’ button and ‘Input’ button on the TV.
Step 3: Continue holding these two buttons as you plug the TV back into the power socket.
Step 4: Release the buttons once the TV has completed start-up.
Step 5: Select ‘Factory Reset’ from the ‘Service Mode’ menu.
Step 6: Wait for the TV to restart.
If using the remote, you can access the factory reset through the main menu.
Step 1: Press the ‘Menu’ button on the remote.
Step 2: Navigate to Settings > System/Support/Setup > Factory Reset.
Step 3: Press the ‘Ok’/’Play’ button three times to start the reset, or select ‘Reset’ and enter your TV passcode. This default passcode is ‘’.
Sharp TV Won’t Turn On
If your Sharp TV won’t turn on, this means that it is not receiving power. First try plugging your TV into a different power outlet, or plug it directly into the wall if it was previously plugged into a power board. Sometimes a power board can become overloaded and fail.
If none of these are working, work through the possible issues below. You can also try a hard reset, detailed above. Another possibility is that the TV is on but the screen is not working, but you can read more about this issue further down.
TVs will produce a lot of heat, particularly if they are used for extended periods of time. If your TV is enclosed in a tight space and not well ventilated, it ca overheat.
An overheated TV will not turn back on until it has cooled down, assuming no internal damage has been done to the circuit board. To fix this, let the TV rest overnight and clear any nearby obstructions from the vents.
Your TV may also simply be in ‘Standby’ mode. Normally, you can press the power button on the remote to wake it up. However, you can also check that the ‘Main Power’ switch on top of the TV is also switched on.
The ‘Sleep Timer’ function is what puts the TV into ‘Standby’ mode, so if you do not want this to occur, you can turn it off in the settings outlined below.
Menu > Settings > System > Sleep Timer > Off
If you are trying to turn the TV on with the remote, it may be that your batteries need replacing or the buttons are stuck. You can test this by using the button on the TV instead. If the TV still turns on using this button, the remote is your issue.
If you have new batteries and suspect that the buttons are stuck, you can reset the remote by removing the batteries and pressing each button at least once. This will drain any residual power from the remote, allowing it to reset. Make sure you also press the power button a number of times before re-inserting the batteries to clear any built-up debris underneath.
If none of the above methods are working, it is likely that the circuit board within the TV is broken. Broken capacitors are often the cause of this issue. If your TV is still under warranty, consider requesting a replacement/repair, or you can try to source a replacement circuit board yourself.
Sharp TV Has No Sound
For a Sharp TV with no sound, you should first make sure that you check the following.
- The volume has been turned up.
- The TV is not on ‘Mute’.
- You are on the correct input channel for your device. For example, selecting ‘HDMI 2’ if it is plugged into the ‘HDMI 2’ port.
If you have checked these simple solutions, you can also try a hard reset or reset the TV to factory settings. However, below are some other possibilities to consider.
Most of the time, the TV will not have sound because the settings on your device or TV are preventing it. The settings on each device will vary, so you may have to look through the instruction manual. However, for a Sharp TV, you can check the following settings.
- ‘Audio Output’ is set to ‘Fixed’ to use the TV speakers or ‘Variable’ if using an external speaker.
- The ‘Auto Volume’, ‘3D Surround’ and ‘Balance’ settings are all set to ‘Off’.
These settings can all be found in either the ‘Audio’ settings or ‘System’ settings, depending on the model of your Sharp TV.
Sometimes is may be a loose or faulty wire coming from a device to the TV, or from the TV to an external speaker. Try re-inserting all cable or using a different or new cable instead.
Sharp TV Has No Picture
No Picture on One Input Channel
If you have no picture on one particular input channel, it may be that either the connection is loose or the cable is broken. Another possibility is that you are using a cable that is not compatible with the video signal. This is mainly an issue if you are transferring a 4K video signal with a standard HDMI cable.
If you have checked the cable, you should also make sure you are on the right input channel for that device. If it is a satellite TV box, make sure you have tuned the channels.
No Picture on All Input Channels
If your TV has no picture at all, regardless of what channel you are on, there are a number of possible causes. First, make sure the ‘Sleep Timer’ is not activated, as mentioned earlier.
Another setting that will turn off the screen is the ‘Audio Only’ feature. This will turn off the screen whenever you are playing music, and will turn on when you press any button on the remote (except for the power button). You can disable this feature via the following pathway.
Menu > Settings > System > Advanced Settings > Audio Only > Off
You may also be experiencing a hardware issue, such as a broken circuit board or backlight. These issues will need to be assessed and repaired by a Sharp technician.
Sharp TV Flashing
The most common cause of a ‘Flashing Sharp TV’ relates to the warning light at the front of the TV flashing. This light will flash when you are operating the TV (pressing buttons), or if the TV has an error.
Therefore, this issue can be fixed by performing a firmware update, hard reset or factory reset, mentioned at the beginning of this article. If you are experiencing a flashing screen, please refer to the issues above that relate to your screen not working.
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