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Screen on tv is half normal the other half is half blue and the other half solid white

Have removed ribbon cables,cleaned and reseated ,no difference

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  • Master
  • 8,617 Answers

Sounds like the Tcon board has an issue.

Posted on Jan 11, 2013

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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lukster
  • 217 Answers

SOURCE: half screen activated only

When only a half screen is produced, it is usually a upper or lower buffer board, if the top half is blank then it is the upper buffer, and of course if it's the bottom half then it's the bottom buffer board

Posted on Feb 17, 2007

  • 4234 Answers

SOURCE: Panasonic TH-50PZ77U 1 1/4" inch vertical line

Once you open up the unit, you should see a series of flat orage cables coming from the panel itself. These are the cables that can have poor connections. CAREFULLY remove them by releasing the connector "lock" and reseat them inside the connector. Re-lock the connector and try the set. If that fails, you should have the set examined as specialized equipment will be necessary to trace this problem.
Dan

Posted on May 01, 2008

jerryg50
  • 1667 Answers

SOURCE: Screen goes white

The main driver board, or the main processor board most likely has a failure. The authorized Panasonic service rep can replace the defective boards and perform the necessary adjustments to match them up.

If the set is out of warranty it may be expensive to service. Using the set with a defect can cause more damage, and thus may increase the cost of the final repair.

Jerry G.

Posted on Jan 17, 2009

  • 160 Answers

SOURCE: Half my screen turns white after the TV is on for

You have problem with Main Board or LCD Controller. It's impossible to know for sure unless replace one and see if it will solve an issue. If not - than other board is responsible. Repair should be done by professionals unless you can find parts cheap and got enough skills to repair electronics. No soldering involved. Just board replacement.

Posted on Mar 10, 2010

budmrtn
  • 11361 Answers

SOURCE: Memorex mlt3221. white screen, no sound, no function.

Check the power supply module for bad DC filter caps first, then check the backlight inverter board for shorts.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/

Please post back what you find.

Posted on Jul 29, 2010

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If this is done with every input of your tv and also with tv channels this means a bad circuitboard .You can find on ebay one and mod it yourself. Its not such a difficult thing.

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My screen has half screen


This is either a screen issue or t-con board issue. If the tabs on the ribbon cables are not bonded to the screen correctly this can occur and it is not fixable. However you can try reseating the ribbon cables at the other end where they come out of the t-con board.

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Yes there is a ribbon cable that connects to the back of the monitor, but as a rule, if that cable is loose you lose the monitor all to gather Was the laptop dropped, jarred, fell over on the screen, with the lid closed? Has a driver been updated resently? I had a similar issue but thr monitor was dark no connection, I accessed the rear of the monitor, and reseated the ribbon cable, and secured it with tape. Your problem sounds different like a software issue. You have tried to reboot? remove battery before, plugging the AC in.

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If you changed the Ribbon cable and its still the same then the T-Con board would of probably gone faulty. Lots of weird screen problems can be accounted for the T-con board.

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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.

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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.

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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.

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