I have a Samsung TV Model# UN65J6200AF I have a black screen, flashlight test shows the menu. I replaced the power board and my tv worked for about a month and then it went black again.

The Knight

• 76851 Answers
• Posted on Feb 05, 2015

SOURCE: lg led tv backlight

Fault with 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.

Phillip Hicks

• 917 Answers
• Posted on Mar 14, 2015

SOURCE: How can I get my backlights to work on Samsung LCD tv

If your not a TV Engineer , get one to look at it , as you may keep changing the incorrect part.

The Knight

• 76851 Answers
• Posted on Jul 14, 2016

SOURCE: Which board to replace first? Samsung plasma TV model number pn60e530a3fxza. Screen black/has sound. Menu does not come up. Picture went out while watching. Fuse is ok and no bulging capacitors.

As far as audio is OK; the main digital board works perfectly. Check the sustain boards. Cannot predict which one has the fault. you have to check and find it.
If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Faults & possible causes to LCD & Plasma TVd 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.
Search the site by type in the "brand name" to your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts

The Knight

• 76851 Answers
• Posted on Dec 04, 2016

SOURCE: Hitachi le49a509 led tv black screen. I can see the menu screen with a flashlight test. There's 3 boards in the back. Tcon, power supply and main board. Which is the problem?

Back - light problem. 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. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

SOURCE: I have an LG TV model number 50ln5100 my screen went black I did a flashlight test and saw movement in the background what part do I need to get my TV working again?

The LED backlight driver controls the operation of the white light. It may be incorporated in the main board or the power supply board. It can also be a stand-alone board. Depends on the model. You can find the parts you need from here: TV Parts Universal TV Stands DLP Chips ShopJimmy