Question about LG 42LG50 42 in. LCD HDTV

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How to replace a tcon board on a 42lg50 ua tv

I have the board exposed, how doy you release the ribbon cables

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  • LG Master
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Check the Vidoe
LCD TV Repair Tutorial Con Board Common Symptoms Solutions How to Replace...

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

Posted on Jan 10, 2017

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Posted on Jan 02, 2017

lovejoy91
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SOURCE: has sound but no picture. lg 42lg50-ua. I have

Only Dlp have bulbs could be main logic board

Posted on Dec 06, 2010

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SOURCE: BROKE OFF THE CABLE INPUT

Tries websites like Shopjimmy.com,Ebay.com to buy a whole new refurbish tv Tuner signal board for the replacement.

Posted on Jul 12, 2011

caroldon
  • 17129 Answers

SOURCE: lg lcd can a bad tcon board kill all power

Yes , it can be a short on the board that will ask the SMPS unit to protect the power so as to switch off. So even with a multi-meter check you will be able to trace the short on the board, the drivers or any capacitor that is cutting off the power which must solve the issue.

Posted on Dec 15, 2011

SOURCE: lg263000

It could be a bad T-con, but it could also be a faulty LVDS (cable that connects the t-con to the main board), or you can have a main board fault. It sounds like your panel isn't getting power. The T-con board should be located top center on the backside of the set. It should be housed under a metal cover. BEWARE, some panel have the T-Con built into the LCD panel. If this is the case, you will have to replace the entire panel if the t-con is bad. Simply go to www.shopjimmy.com, and type in you actual TV model # in the search box. This will bring up all the parts available for your model. The results will also bring up pictures of the parts so you can see exactly what they look like.

Posted on Nov 24, 2012

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gopakumarg43
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SOURCE: How do I know which part to replace in my LCD TV...is it the backlight or t-con or main board?

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.

Posted on Sep 23, 2015

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1 Answer

How do I fix my Samsung Tv.


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://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Oct 19, 2016 | Samsung Televison & Video

1 Answer

My tv model# 37lg50-ua. I have a dim picture black and gray


The TCON board or the LCD panel is faulty. You have to replace the TCON board to confirm. In some models TCON boards are integrated to the LCD panel if so you have to go for a new LCD panel.
If you wish to get some details; check the site linked here. Pull up older posts.
http://electro-medical.blogspot.com/

May 24, 2016 | Televison & Video

1 Answer

I have a 55" Seiki flat screen t.v. and after the movers moved it from my old home to my sisters house all of a sudden there is a vertical line that will not go away


It is definitely loose connection of ribbon cables connected to the TCON board.

See how to identify the TCON (Timing and Control board) and how handle the delicate ribbon cable

LCD TV Repair Tutorial Con Board Common Symptoms Solutions How to Replace...

There are hundreds of video to help you identify the defects and parts if needed

May 13, 2016 | Seiki Televison & Video

1 Answer

Tv flicks after a couple of mins after being turned on


The tcon board of the LCD panel is faulty. Can confirm by replacing the Tcon board.
If you wish to get some details; check the site linked here. Pull up older posts.
http://electro-medical.blogspot.com/

Apr 09, 2016 | LG 42LG50 42 in. LCD HDTV

1 Answer

How do i disconnect the ribbon connectors?


many small ribbon coinnectgors use a hinged bar that presses the cable down against conenctor contacts. Flip up the bar carefully with your fingernail. It will pivot upward to release the cable.

But then, some cables are not removable. They are held in place by sticky plastic tape. LDS screens often employ that concept. Best not to try to separate the cable from the glass. Unplug the cable at the circuit board end.

Feb 19, 2015 | Visual Land Prestige Pro 7D 7 inch Tablet...

1 Answer

How does both ends of 21 pin flat cable connect


The metal pins on both ends should be on the same side

Jan 15, 2014 | Bose Wave Radio

1 Answer

Replacing cracked screen


Insert your plastic pry tool into the seam in the side of your touch and run it along the length of the device to release the back panel from the front.
If your replacement screen did not come with a plastic pry tool, then a small flat-head screwdriver will also work.
Remove the square battery from the motherboard in the front housing by running the pry tool along the sides of it and gently pulling up.
Remove the small piece of black tape from the bottom of the front housing to expose three screws.
Remove the three screws using your small Phillips-head screwdriver. Remove the small screw near the top of the battery connector ribbon as well.
Remove the metal cover from the bottom of the front housing with the plastic pry tool.
This will expose the ribbon that connects the screen to the front housing and motherboard.
Flip the screen-connector ribbon up and gently pop it out. Then remove the two screws at the top of the front housing and disconnect the one other screen-connector ribbon.
This will release a thin metal board at the top of the housing that guards the screen. Pull the metal board out carefully.
Remove the 16 small screws from the side of the screen.
Once the screws are removed, the LCD screen will be free of the housing.
Gently remove the screen and replace it with the new one.
Replace the screws and reassemble the iPod touch the same way you took it apart.


video http://www.bing.com/videos/search?q=how+to+replace+an+ipod+4g+screen&view=detail&mid=3843F00F64220E3352823843F00F64220E335282&first=0&qpvt=how+to+replace+an+ipod+4g+screen

Nov 05, 2013 | Apple iPod touch

1 Answer

Have a Magnovox 42MF531D/37 and are trying to replace the TCon board. However, we are having an issue with the brown "straps" - we don't know how to get them off of the old one.


If you are talking about the flat ribbon connections that go from the Tcon board to the LCD panel, the you just have to lift up the little tab on the connector that is on the Tcon board. It should flip up like a little hinge and once that is unlocked then the flat ribbon cable will pull straight out.

To replace the flat ribbon cable just slide it straight into the connector ensuring the little flip up tabs are up first. Once the ribbons are fully inserted into the connector then flip the little tab back down which locks the ribbon into position.

Good luck and post back if this helps or if you need more assistance.

Jan 28, 2011 | Televison & Video

1 Answer

Half of my screen goes out from time to time. how do i fix that.


This is likely a problem with your TCON circuit board inside the back of the tv.

The TCon board usually has 2 very thin ribbon like cables running from connectors on the board to the actual LCD screen panel. Each ribbon controls one half of the screen. If you are lucky, it's possible one of the ribbons came loose or is not making proper electrical contact with the connector on the TCON board.

If your tv is out of warranty and you are comfortable working safely with electronics then you may be able to repair this yourself with a few hours of screwdriver work. The ribbons may just need to be reseated in the little flip up connectors, or you may have to clean the copper at the tips of the ribbons gently with a pencil eraser to remove any oxidation.

If you are unlucky enough to have a bad TCON board or are not comfortable disassembling your tv yourself then you can bring it in to the shop and they can probably repair it for less than $150.

Good luck and please post back if this helps and with how you make out.

Jan 25, 2011 | Olevia Televison & Video

1 Answer

Only right half of screen shows


If this problem affects exactly half the screen, then there is likely a problem with your TCON circuit board inside the back of the tv.

The TCon board usually has 2 very thin ribbon like cables running from connectors on the board to the actual LCD screen panel. Each ribbon controls one half of the screen. If you are lucky, it's possible one of the ribbons came loose or is not making proper electrical contact with the connector on the TCON board.

If your tv is out of warranty and you are comfortable working safely with electronics then you may be able to repair this yourself with a few hours of screwdriver work. The ribbons may just need to be reseated in the little flip up connectors, or you may have to clean the copper at the tips of the ribbons gently with a pencil eraser to remove any oxidation.

If you are unlucky enough to have a bad TCON board or are not comfortable disassembling your tv yourself then you can bring it in to the shop and they can probably repair it for less than $150.

Good luck and please post back with how you are making out.

Jan 24, 2011 | Westinghouse LTV-32w3 HD Television

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