Question about Sharp Aquos LC-42D62U 42 in. LCD HDTV

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Sharp 42d62u lcd 2 rectangular squares(yellow)top right corner

Last night when i put the tv on after 15 min there were 2 rectangular squares that appeared top right corner 2 inches high X 6 inches across in 2 parts.and at the opposite left top corner thin blue line 8 inches leght 2 mm thick,all this happened same night .CAN ANY BODY HELP ME WITH AN EXPLANATION.I STILL GOT 1 YEAR ON EXTENDED WARRANTY BUT I WANT TO NO IS IT REPAIRABLE OR DO THEY USUALLY REPLACE PROBLEMS LIKE. THANK-YOU FOR YOUR PATIENCE I WILL BE WAITING FOR YOUR RESPONSE.... (THANK'S AGAIN) FRANK-MOLSON

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  • Anonymous Jan 11, 2009

    January 10th, just turned on TV with same problem. Mine is a 52-in Sharp though, I suspect a software problem.

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6 Suggested Answers

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  • 2 Answers

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Posted on Jan 02, 2017

  • 208 Answers

SOURCE: Blue horizontal and vertical lines

We have many problems with loose or poorly seated cables and connectors on these units. Pull the back and reseat all the internal cables, especially the LVDS cable to the LCD control bd. If this does not correct the problem the main cause is a bad LCD control bd. or possible a defective main bd.

Posted on Feb 03, 2008

  • 103 Answers

SOURCE: Sharp 42" flat screen LCD T.V.

You have a bad buffer ic,which is part of the lcd panel.Definiately call sharp to get it repaired.If it doesn't have a warranty,persistence through sharp will get you results.

Posted on Mar 07, 2008

SOURCE: Horizontal green line appears on screen

my maxent plasma tv has the same problem but it has green and red lines. I found out that hitting the tv from the back works. It used to last a long time but now i have to get up now and then to slap the tv on back with my hands! anyone with a long term solution?

Posted on Jun 12, 2008

  • 14 Answers

SOURCE: green vertical lines

Possibly needs a new control circuit board or lcd panel

Posted on Jul 25, 2008

  • 1 Answer

SOURCE: Sharp Aquos LC C3242U - Intermittant Sound Switching from Mono to Stereo

Not sure if I just got lucky or if the problem is solved..I hooked up my Sharp Aquos LC-32D64U the other night and I had the blue audio box pop up. Mine was only in Mono and would not switch to Stereo...Well, Local cable company is of of Hi-Def boxes but I thought what if my Digital box is bad/old or has some sort of problem. I went down to comcast cable company switched to a different digitial box..came home, hooked it up and so far no blue audio box, plus now it shows that it's in stereo..good luck

Posted on Jan 10, 2009

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1 Answer

Snowey on scrreen


Hi there,

I've been repairing TV's for over 15 years and I would say either a bad Tcon's or main board issue. Theirs no need to replace capacitors these days, you can get the main board from $40-60.
Have you tried using different devices on the unit? If your getting a snowy picture on a satellite receiver, check with your provider for troubleshooting guide their unit. Or let me know the provider and I can lead in you right direction.

Thanks,
Jason

Jun 09, 2016 | Sharp Aquos LC-42D62U 42 in. LCD HDTV

1 Answer

??? My LG 50PN4500 TV has a strange one-time issue, I turned it on last night (was on standby) and a full screen "shadow" pattern of squares appeared? They were gray but I could see the colour...


If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ 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.

Mar 12, 2017 | Televison & Video

1 Answer

I have small white line about 1/2 in wide across my screen last night but now it is gone what causes this and will it come back


poor or loose conection on the lcd controler board they are the connectors that go from the controler to the lcd panel you will need a tech to clean ans reseat them

Dec 03, 2009 | Sharp Aquos LC-42D62U 42 in. LCD HDTV

1 Answer

Screen problem


it is clearly a case of "you got ripped off" just like me

Feb 25, 2009 | Sharp Aquos LC-42D62U 42 in. LCD HDTV

2 Answers

Green box keeps popping up in upper right corner


You should be watching your dvd's on an input and not on tv analog 3. Every time the tv "senses" a signal change in the audio that screen will pop up. Connect the DVD player to the tv by using either the red, white and yellow (composite) connections or using the green, blue, red, white and red (component). Once you are on an actual input that box will stop popping up.

Dec 27, 2007 | Sharp Aquos LC-42D62U 42 in. LCD HDTV

2 Answers

Aquos set up


wild shipping my sharp aquos 42 inch it get a crack in the screen can i buy just a screen for it and what's the cost for it

Dec 15, 2007 | Sharp Aquos LC-42D62U 42 in. LCD HDTV

3 Answers

Yellow box with the letter "K" in it.


the TV needs to be reset with the Factory Initialization. Try contacting Sharp at 1-800-327-4277 for instructions.

Sep 17, 2007 | Sharp Aquos LC-42D62U 42 in. LCD HDTV

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