Question about Toshiba REGZA 47HL167 TV

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Toshiba 47" 1080P LCD 47HL167

We are a liquidation company and have got 4 of these tvs all with the same problem. The righ side of the screen is darker than the left side.
Left side is normal, right is darker?

It seems to be split right down the middle at 50/50

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  • topshelf1 May 07, 2008

    Hi

    Thank you for your quick response. I don't believe there is any convergence IC on a LCD TV. Do you have a part # for the IC.



    Thank you.

  • Anonymous May 29, 2008

    Right out of the box, the right side of the screen is darker than the left side. After about 3 or 4 minutes, the problem goes away (warmed up??), and a beautiful picture is displayed. What gives?? Not called Toshiba yet.

  • smiles25 Jun 16, 2008

    I'm having the same issue and Toshiba isn't being helpful at all in terms of troubleshooting this unit.



    The problem I'm having is the right side of the display is very dark. There are horizontal lines of bright pixels on the display. What do you think my problem is with this LCD? I believe no matter what picture that I show, it does the same thing.

  • rcmichael3 Nov 01, 2008

    the picture is fine on the left side,but dark on the right

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Ok I have included some information that could be VERY helpful and given the correct credit to the original author. If you find this useful don't forget to rate the thread. Thank you.


SERVICE MODE WARNING:
Without proper documentation Don't mess around with the service mode adjustments unless you know what you're doing and have the service manual to guide you.
Once you enter service mode the first thing you should do is record all the original values BEFORE you change anything! - This is the only way to restore the television to its original (factory default) state should it become necessary to do so.

  • Sit in front the TV, you will need to be able to access keys on the remote and the TV at the same time. Turn the TV "ON"
  • Turn the volume all the way down to 0.
  • Press and hold the TV's front panel volume down button, and then press and hold the remote's "9" button for about a second.
  • The service mode will appear. \ -or-
  • Press "MUTE" on the remote.
  • Press "MUTE" on the remote again, but this time continue to press "MUTE".
  • While still pressing down on "MUTE", press the "MENU" button on the TV front. Release the "MUTE" button. You should now have an S (for service mode) displayed in the upper right corner.
  • Pressing MENU again should bring up the first service option Pressing the Channel Up/Down keys brings up the different service options. Pressing the Volume Up/Down keys changes the associated HEX value.
  • One you have entered the service mode, you can bring up the various test screens by pressing the "TV/VIDEO" button. For example, to minimize screen non-linearities, press the channel down key until PARA appears on the screen, with the associated default value (this is the parabolic adjustment option).
    Then, bring up the cross-hatch pattern by repeated pressing of the TV/VIDEO button. You can then use the volume Up/Down buttons to change the PARA settings, this should cause the grid to bow in (concave) and out (convex). Adjust until the grid is the most linear.
    The numbers 1,2,3,4,5,6 jump to different items. 9 displays SELF CHECK
    The number 7 displays a grid. There's a blinking cursor in the upper left corner. The numbers 2,4,6,8 move the cursor. 3 cycles the colors (RGB), 5 stops the cursor from blinking, then when you push 2,4,6,8, you are adjusting the convergence at that point for the selected color. Pushing 7 again gives you a "warped" grid for a few moments. Pushing 7 again removes the grid from the screen.
    If you're attempting to adjust color or geometry errors, you'll need the Video Essentials DVD, Laser Disc or some other source of test material.


  • Original Text from: Setting Your Monitor to NTSC Specifications by Anthony W Haukap

    Posted on May 08, 2008

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    Replace the convergence IC and check power resistor for leakage, if values are not exact replace them. Once the parts are in place perform the alignment.

    Thank you & post back again if you need additional info.

    Posted on May 07, 2008

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