Sharp digital tv cannot receive digital signal

The signal source is the antenna or the cable company's output and the source connection is everything between the source and the tv set.

Coaxial cables aren't immune from damage and can easily sustain damage and where exposed to weather, especially if not firmly fixed, the combination of sunlight and wind, freezing weather and wind can not only ruin an aerial downlead in just a few years but it can also collect rainwater and channel it straight into the aerial socket of a tv...

Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Yes you need a digital converter box. Your model has an NTSC Analog Tuner. It doesn't have a Digital Tuner. This is why you need the converter box.


For example, many companies like Comcast or Time Warner or TCI etc used to broadcast Analog Signals through their wires. Now they have broadcasted only Digital Signals. This makes either your TV Obsolete as a Tuner or you have to get a digital converter so your Analog TV can receive the signal.

Depending on your service, it may be worth your while to get a TV with a digital Tuner.

Then again, it also depends on if you are connecting a box receiver to your TV. For example, if you have Directv or Dish, you would then use your standard Video/Audio or Composite Cables to transmit your signal OR your Out to TV Coaxial whichever works for your receiver. Some receivers have already built in converters . You should really consider all the factors to decide and determine it based on the type of service you have or want.

hi,
check for any dry soldering in the circuit board , on power supply side and horizontal output side.
ok

The problem could be your antenna. Many people will buy small indoor tv antennas and wonder why they're not getting the signal that they want or the channels that they expect. Its not your fault. Digital signal is in two formats: UHF AND VHF. Some antennas only receive UHF. But many of the low band channels are VHF, so 1) you need an antenna that will receive those signals and 2) you need to know how and where to install that antenna and 3) you need to know if you need a signal amplifier depending on your coaxial cable length and number of connections. I recommend visiting dennys antenna service (no I don't work there and I have never purchased anything from that website. He just has an excellent informational article with a great deal of "how to" on his pages.). http://www.dennysantennaservice.com/2029710.html This should be of great help to you. Happy viewing =)

seems like you are using an "off the air antenna" that receives weak signal, you may be too far from the station, go get a roof top amplifier antenna or subscribe to digital service from cable, satellite or at&t uverse. If you think your antenna is getting good signal, try to rescan your tv for available channel. Make sure your TV set up is correct, if you are using Off the air signal, your setting should be set at "Antenna or off the air", then rescan your TV. Normally on Satellite or cable box, you just watch it on video channel or component input, if you are using HDMI then tune to HDMI channel.
Check your connection to make sure they are making good contact. If you can post your set up, I can better solve your problem.
For a resource on "off the air" antenna, go to www.antennaweb.org for help.

If you are trying to get 'off the air' signals then you must scan for the new digital channels in your reception area (this info should be in your owners manual). If scanning doesn't find any signals, you might have to add a VHF/UHF line amplifier(s) between your antenna and the TV set or improve your outside antenna or the cable leading from it to your set. You might have to resort to subscribing to HD cable or satellite TV.

You don't need a digital antenna; any indoor UHF/VHF antenna will work. The antenna and the TV both connect to the converter box, not to each other.

A standard rabbit ears (UHF/VHF) antenna with flat wire (300 ohm) connections can be hooked up to the coaxial cable that goes to the Antenna (RF in) jack on the converter box by using a balun (Radio Shack catalog # 15-1297, about $8). If you have an antenna with coaxial cable already attached, you don't need the balun.

To connect the TV to the converter box, you need an adapter that has an F jack on one end and a 1/8" plug on the other (Radio Shack catalog # 278-257, about $5). The 1/8" plug on the adapter goes in the external antenna jack on the TV, and the other end connects to the coaxial cable that goes to the TV (RF out) jack on the converter box.

the frequency catcher of the antenna may be weaker then required.to receive the digital channels u can attach a network booster which will solve the problem.