Sharp LC-20SH4U 20 in. EDTV-Ready LCD Television - Answered Questions & Fixed issues

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.

Menu on remote and make sure you have it on wide screen or 16 to 9

Hello If your Roku 3 player is not connecting to WiFi, it is possible that the WiFi signal from the router is out of range. In order to strengthen the signal, move the router and Roku 3 so that there are fewer objects and walls between them. For any help or support just visit us: www Roku Com Link

When you say WD box, do you mean a Western Digital Hard Disk Drive? If so, get a Solid State Drive (SSD), and connect it via USB3. The HDD or the USB connection is not fast enough to keep up with the required speed of the video. If you mean something else, please add details.

Check the high voltage circuit on the board that has the 120 volts input. The high voltage should be close to 400 volts - nothing less than 390 volts. The capacitor is failing to hold the voltage and needs to be replaced.

Look for it at its bottom side [stand]

Hi, Here you can get solution of your question/problem. https://support.roku.com/hc/en-ca/articles/209403268-Roku-TV-Introduction

TV Parts Universal TV Stands DLP Chips ShopJimmy You can get a universal stand from here.

Not on every model.

The T-con board is bad TV Parts Universal TV Stands DLP Chips ShopJimmy You can get the board from here and replace it yourself. It's easy.

Sounds like The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size. Search the site by type in the "brand name" to your device; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

It' seems short circuit . kindly check your input card and power supply .

Sounds like display panel fault. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electro-medical.blogspot.com/ http://electronicshelponline.blogspot.com/ Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD screen are similar, irrespective of its brand and screen size.

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/ http://electro-medical.blogspot.com/ Blinking codes details of many popular brand TVs are given. Surf the site with patience.

Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. Check and replace the damaged CCFL lamp/s too.

Imput 1 air TV imput 2 cable .. Try seeing if it's set to change 3 or 4

Please attempt to bring up an internal image on the screen by pressing Menu button on TVs remote, and on the TV panel itself. Do the same using the Volume button to see if the volume bar appears. If they appear, check the cords of the sources connected to the TV; make sure they are secure, and not loose. If doesn't appear going to need a circuit board replacement.

Your "Sharp LC Flat Panel Televisions" has a water reservoir?

Fault to its main 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. Surf the site with patience. 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.

These blinks [flashes] are fault indication (Error Codes).From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it.This will make repair easy.These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times.Count it carefully.If you wish to get some details, check the site linked here.It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.http://electronicshelponline.blogspot.com/ Blinking codes details to many popular brand TVs are given.Surf the site with patience.If blinks continue without any pause, the main board is faulty.