Question about Sharp Aquos LC-45GX6U 45 in. HD-Ready LCD Television

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I have a Sharp LC-45GX6U Display & TU-GD10U-T AVC box, and only get a white screen on the display. I've been told that I can bypass the AVC box altogether, and just go to the dispay via HDMI. What does the configuration look like to accomplish this? I've been told to try this since the part that I want to replace is not available anymore (RDENCA089WJZZ) ( DC to DC converter)

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I too have the same problem with the DC-DC board on the Sharp AVC. But I didn't spend the $134 for a replacement board (MCM or Newark).
Instead, I used the reflow technique by placing the circuit board in the oven for 7 minutes at 475F. You need to cover the plastic header connectors (about 7 of them) with foils to protect them from direct heat (and melt). Take the board out of the oven and give a little pressure on all the ICs while the board is hot. Let it cool down and voila! The TV is working again...

Posted on Feb 14, 2013

  • Anonymous Sep 13, 2015

    Also did it. It worked. 475 in the oven for about 5 minutes. Foil wrap the white plastic parts first. I put the board on a cookie sheet. Once out of the oven, use a paper towel to push down on the components. Popped the board back in, and it worked. Wife thought I was nuts, until the tv started working again!

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I used the reflow technique suggested above and things are working again. thanks for the advise. Took only 30 minutes from start to finish including cool down time.

Posted on Jul 03, 2013

  • Subodh Nimkar
    Subodh Nimkar Jan 22, 2014

    I have identical problem. I am a novice at fixing things but would like to try this solution that has worked for you. Would anyone have a picture that identifies the board that needs the above mentioned treatment. Also, any pointers on disassembling and assembling the box would be great too. Thanks.

  • Damian Jan 23, 2014

    I'll try to get you a picture of the board by the weekend. Damian

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Posted on Jan 02, 2017

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SOURCE: LC-45GX6U

bryansled is 100% correct. I had the same problem, and was told by the repair shop it would cost about $500 and it was probably better to buy a new TV set. I was skeptical at first because the part costs about 150 bucks. That's a lot of money if it doesn't work. But I figured WTF, just try it. Easy to install and it worked right away. Bryansled, I can't thank you enough.

Posted on Jan 07, 2010

satavlad
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SOURCE: LC-45GX6U

Make sure that system cable is not lose.

Posted on Oct 23, 2009

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1 Answer

Sharp Aquos LC45GX6U & TU-GD10U. The unit doesn't power up, and has a red blinking light from the moment you plug it in. The unit works fine in service mode.


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.

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Make sure that system cable is not lose.

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LC-45GX6U


The DC/DC converter went out on your set. When you take the top off of your AVC box look for a 4" X 5" circuit board mounted on the front left corner. I have seen these fail causing you white screen. Order the part from your local Sharp service center. Part # RDENCA089WJZZ

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4 Answers

No AVC media box


You should be able to use this with only the DVI connection as just a large monitor. You can use a DVI to HDMI adapter as I do believe the display is HDCP compliant. Many AV receivers will upscale to the necessary 1920x1080p resolution that the display needs.

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