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In order to repair my Samsung UN32H5203AF US02 TV, what part would need to be replaced? Details below...

I have the Samsung UN32H5203AF US02 TV. It suddenly went black. I checked the backlight and there isn't any. I checked the screen using the flashlight and you can see the menu, etc. Sound is good! Called an online part supplier, they sold me the power board. Changed it, but did not resolve the issue. Another tech told me that it is the LED driver or LCD inverter. I have the service manual, but it does not reference either parts.

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  • Samsung Expert
  • 330 Answers

In most of the case, the problem is the LED back lights strips, it was the most case we encountered.
To check it, un-plug the cable between the power supply & the main board, apply the AC power to it, if the back lights came on, replace the main board, if not, mostly the problem is the back lights LED strips.

Posted on May 27, 2017

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6 Suggested Answers

6ya6ya
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Hi there,
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Posted on Jan 02, 2017

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TV #1
  • 129 Answers

SOURCE: my 32" lcd vizio vx32L turns on there's sound

Have you tried the T-con board?

Thank you,


tv_1_7.jpg

Posted on Dec 18, 2010

SOURCE: Replacing a Vizio Backlight Inverter

I have a television that did this. The picture went out but it continued to have sound. It was the projector bulb. I ordered from a dealer on ebay, very resonably priced. It came with instructions on how to install it and was a very easy fix.

Posted on Feb 25, 2012

mike0862
  • 5670 Answers

SOURCE: Seiki led tv has sound but no picture. The picture can be seen with flashlight. We tried resetting default on menu with tech support, still no picture. Has no backlight. Which part should we replace?

You are correct, this is a backlight issue! The screen inverter is usually built into a circuit board, if you want to attempt this yourself you will need to access the circuit boards to see which one you need to replace! If you open up the TV and post a picture we will be able to point you in the right direction!

Posted on Jan 11, 2015

Testimonial: "Thank you for your quick and very helpful response. My husband will tackle that task soon and we'll send photo. Hopefully will be an easy fix. Thanks!"

gopakumarg43
  • 75581 Answers

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.

Posted on Feb 05, 2015

phil_hick883
  • 917 Answers

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.

Posted on Mar 14, 2015

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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.
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Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Below are more details for both items. Also, complete repair kits with instructions and repair support are avail from site such as www.TvRepairKits.com

Common Problem #1) Convergence has gone out

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....
  • Screen looks 3D
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  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
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Here are some pics of convergence problems.


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69189a5.pngSOLUTION #1

What you will need to do is convergence. You can get a repair kit from TvRepairKits.com . It includes replacement parts,step by step instructions, support, etc.

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

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TV set after fluid change

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69189a5.pngSOLUTION

What you will need to do is replace the coolant and clean the crt. You can get a repair kit from TvRepairKits.com . It includes replacement coolant,step by step instructions, support, etc.

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