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.

Sanyo DP50747 50... | Answered on Apr 25, 2017

1 Answer

I just replace the power board in a Sanyo DP50747 TV work great. But of the bottom of my screen about 2 1/2 inch I counted about 23 horizontal black line running from one end of the screen to the oth

Contact any service technician. Did you thought it is an easy job like swallow a banana? Spend some for others too; man. https://electronicshelponline.blogspot.com/

Sanyo DP50747 50... | Answered on Jan 27, 2017

0 Answers

I have a sanyo dp50747 plasma tv powers on but the screen is black I was told it was an easy fix but the repairman is no longer available to tell me or fix the problem

Sanyo DP50747 50... | Posted on Dec 05, 2016 | Be the first to answer

1 Answer

How to diagnos a sanyo 50747 flat screen tv

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

Sanyo DP50747 50... | Answered on Jun 13, 2016

0 Answers

Why is picture upside down?

Sanyo DP50747 50... | Posted on Mar 14, 2016 | Be the first to answer

1 Answer

50 sanyo hdtv model dp50747 with a black bar or colored lines about 1 wide down left side of screen. I have checked all the ribbon cables and made sure all were tight and good conection. What next?

Definitely drivers, and may or may not be repairable. Here is what I understand. It depends on how the plasma panel in that set was made. Some panels have the X-drivers on a separate board. Others bond the drivers to the plastic ribbon connected to the panel. If it's a separate board, the board can be replaced. If it's bonded to the ribbon, it's virtually impossible to replace the defective chip.

Sanyo DP50747 50... | Answered on Feb 03, 2016

1 Answer

Tv push power button but turns itself off in a few seconds

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. Surf the site with patience. Pull up older posts.
http://electro-medical.blogspot.com/
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.

Sanyo DP50747 50... | Answered on Jan 24, 2016

1 Answer

Why my tv will come on not have a picture and go off?

Check and replace the damaged component/s at its main board. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Sanyo DP50747 50... | Answered on Jan 24, 2016

1 Answer

Power keeps shutting off when I turn it on

Check remote, alternate between manual and remote start ups to see if that helps

Sanyo DP50747 50... | Answered on Jan 15, 2016

1 Answer

Why is color poor?

Try a factory reset [hard reset] to this set, and check. There are two types of reset to TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Service mode entry, adjust and exit procedure to many popular brand TVs are given. Never forget to exit the service mode, after all adjustments have been done.

Sanyo DP50747 50... | Answered on Jan 11, 2016

2 Answers