Sanyo dp46849 Screen Problems [5 Easy Solutions]

The most common Sanyo dp46849 screen problems include the TV turning on but going black, picture color distortion, and image retention problems.

Also, the appearing horizontal lines on the screen and dead pixel problems are some of the other leading issues on the Sanyo TV screen.

To troubleshoot each of the screen issues, you will need the most effective solutions procedures. If you suspect any type of imperfection on TV, go through our comprehensive solution guide.

Here, you will get a crystal clear description that will let you understand the fact more quickly.

Sanyo dp46849 Screen Problems [5 Easy Solutions]

Most of the screen issues are related to manufacturing defects. Some of the issues occur from hardware and software glitches that need repair.

Today, we are here to bring that well-proven guide where you will find the easiest ways to fix the screen problem. So, let’s get started.

1. Sanyo TV Turns on But no Picture

If your TV has already turned on but has no picture, the problem is more likely related to the TV software. Besides beings hardware glitches, there may have bugs in the TV software system, and the TV won’t turn on.

But if you hear the sound, be sure still the power light is illuminating. Anyway, before moving to the fixing procedure, we have to figure out all the responsive factors behind this annoying situation.

  • Activated energy-saving mode
  • Enabled sleep timer mode
  • Faulty HDMI cable connection
  • Defective cables connection
  • Incorrect input source
  • Broken backlight
  • Outdated firmware
  • Loose connection with the cable box
  • Hardware malfunctions

Don’t worry. You can easily troubleshoot this issue by following the below methods:


  • First of all, unplug the TV’s power cord from the power connection.
  • Now check if the energy save mode is turned off. 
  • Also, if the sleep timer mode is turned on, turn it off.
  • Then, check out the HDMI cable connection of the TV. If it has no damage physically, plug the cable into a different input port.
  • Verify that all the input sources of the TV are accurately set.
  • Ensure a snug connection between the cables and external devices. Replace the bad cables. 
  • After that, do a power reset of the TV. For that, press and hold the power button on the TV for 25 seconds while it is unplugged.
  • Now, plug the power cord back into a different electrical outlet. Turn on the TV. 
  • If still there has no picture, factory reset the TV into default settings.
  • Do concentrate on the software version of the TV as well. Update the TV’s firmware. 

2. Sanyo TV Picture Color Distortion

If you notice blocks or fragments appearing on your screen, be sure TV is facing a picture color distortion problem. There have several reasons behind the television distorted picture issue.

Some of the major reasons are loose cable connection, incorrect video or audio settings, fluctuations in power supply, damaged video input, and bad capacitors on the mainboard.

In many cases, having broadcasting issues, TV catches the same problem. Anyway, fixing the issue will not be so hard if you follow the below steps:


  • First, check out all the wires and cables connections. Replace the wires if you find any cuts and splinters there.
  • Check out the ports and jacks as well.
  • It will be better to detach and reattach the cables and wires.
  • Make sure the TV has the correct audio and video settings
  • In the case of damaged video input, connect the HDMI cable to the different inputs.
  • If you still, there have the same picture problem, do a hard reset on your TV.
  • While fixing this issue, don’t ignore the remote control. Remove the batteries. Power reset the remote control by pressing the power button for 10 seconds. Then insert the batteries.
  • Now, inspect the power board and check if there have bad capacitors or not. Replace the swelled-up or defective capacitors.

3. Sanyo TV Image Retention Problem

Image retention is more likely to be the screen burn-in problem. But if the screen burns, it is quite impossible to fix.

In the case of image retention, it can be easily fixed by following some effective procedures. But before that, we must have to know what actually image retention is. 

All modern TV has two different panels. One is Organic Light Emitting Diode (OLED), and the one is Liquid Crystal Display (LCD) panel.

While using technology to display images for each panel, an OLED turns on each pixel where the LCD needs voltage to produce the image.

Anyway, if the same picture remains on-screen for a long period, the pixels of that position get changed. These significant changes refer as image retention.

Don’t worry. Go through the below instruction if you notice signs of temporary image retention:


  • Lowering the screen brightness will prove well. If there has high contrast, adjust the levels of brightness.
  • Then, do the same thing for contrast. Reduce the screen contrast to the maximum level.
  • If the fact is about long-watching content, prefer to watch with varying images. 
  • Enable the TV’s Pixel Shift feature and ‘Screen Refresh’ settings. It will assist in moving the stuck pixel and cleaning out the image.
  • If you are watching TV for a long time, turn off the TV for a while and turn it back on.

4. Sanyo TV Bar and Lines on Screen

Most of the time, there appear horizontal or vertical stripes running across the TV screen. This sudden issue occurs for various reasons.

Like a loose cable connection, a faulty T-Con board damaged wiring connection, or something an issue with a connector.

Also, turning on the TV from a prolog time occurs the same issue. This issue is not more likely to TV broken and can easily be fixed by following the below methods:


  • Turn off your TV and unplug it from the power connection.
  • Leave the TV unplugged for about 60 minutes to let it rest.
  • Meanwhile, check out the video cable connection.
  • Connect the HDMI cable to a different port.
  • Ensure all the wires and cables are firmly connected.
  • Turn on the TV this time.
  • Still, if you see the horizontal lines, update the TV’s software.
  • You may need to reset the TV to factory default settings,
  • Also, refresh the LED screen. 

5. Dead Pixel on Sanyo TV

Dead pixel on the TV is one of the most common issues that happen on TV. The problem is more likely related to degradation in the power supply.

When the pixels can’t able to recognize the delivered electric voltage, it fails to adjust color in that position.

In some cases, the issue occurs for manufacturing defects. Leaving static images on the  TV for long periods of time is another leading cause. Anyway, troubleshoot the issue following the below methods:


  • Turn off your TV first.
  • Take a damp cloth and start rubbing on the area where you identified the dead pixel.
  • If your TV is connected to a computer, you may use a free screen fixing application to fix your stuck pixel in a shorter time.
  • Contact the manufacturer for better solutions.


How to update firmware on Sanyo TV?

To update the software, go to “Settings.” Then, go to Support. Scroll down and then click on Software Update. Select “Yes” from the appearing pop-up message. The updating procedures will start after a while.

Why does my Sanyo TV say no signal when HDMI is plugged in?

If you are noticing a “No Signal” error on your TV screen, be sure there has something wrong with your HDMI cable. Either it is not firmly plugged in or gets defects. Incorrect video input settings and faulty cable connections are also responsible.

Why won’t my Sanyo TV find channels?

If you are not finding channels on your TV, be sure the cable connection starts malfunctioning. First, ensure that the cable is firmly attached to the cable box or satellite receiver. Do a hard reset on the TV

Has Sanyo TV a reset button?

Besides having a “Reset” button on the remote control, there has also a button on the TV body. Look at the back panel of the TV. Move to next the input port area. You will find a small button marking ‘Reset.’ 

Summing it Up:

Throughout this article, we have compiled an effective troubleshooting guide on Sanyo TV screen-related issues. Also, we have figured out the responsive factors for each problem. 

Hopefully, now you have a better idea about all these, and you will easily fix your TV’s screen problem by following our guide. Still, if you have any questions and need to ask us, don’t hesitate to let us know through comment. We are eagerly ready for your assistance.

About Gonzalez

William Gonzalez is a passionate researcher & electronics expert who is dedicated to solve complex electronic issues. Plus, he has a passion for sharing his knowledge & expertise in this field with others. Well, he breaks down the complex technical concepts into simple terms & shares them with his readers so that they can easily troubleshoot the problems with their electronic products as well as save their pockets.

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