Question about Toshiba 55H70 55" Rear Projection Television

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Can't adjust the value of the width in Service mode ' WID '

Do anyone know how to fix the width of the Toshiba Model TN50V71 . The picture of which can not be adjust in the service mode i.e in the 'WID' I tried to tune it from the lowerest to highest value but no matter what value you enter, it does not respond and the picture at both side is deflected inward and I also noticed a red and blue separate verticle curve lines.

Can anyone help please.

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Re: Can't adjust the value of the width in Service mode '...


Posted on Dec 05, 2007

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My picture is doubled on my toshiba TN50V71 as if there is a shadow behind everything? Please help!

hi, sounds like a convergence issue. try this...
  • Look through your manual. Your manual will always give you the most specific directions for your particular model. Look for an "adjusting convergence" or "set manual convergence" section.

  • Enter the menu on your TV. Use the remote control and bring up the menu.
  • Choose "Convergence." This may be under "Picture Settings," "Function" or "Advanced Options."
  • Select a color. You will have red, green and blue to choose from. Do each one, starting with red.
  • Press "Enter." A crosshair pattern will appear on your screen.
  • Adjust vertically. If there is a horizontal red line visible, press the up or down arrow keys (or channel up or down) to adjust the convergence until the line is superimposed on the horizontal-center line of the white crosshair.
  • Adjust horizontally. If there is a vertical red line visible, press left or right (or volume up or down) to adjust horizontally. Do this until the line is superimposed on the vertical line of the white crosshair.
  • Save settings. It is important to save your settings when you are done, instead of simply exiting the menu.
  • Repeat these steps for all colors.
    good luck!
  • Feb 02, 2011 | Toshiba TN50V71 50" Rear Projection...

    1 Answer

    I recently picked up a Toshiba TN50V71 & am not sure where to start in troubleshooting it. There is no picture, & the led power light is steadily red.

    Rear projection TV is made up of a TV, optical lens and a screen. So picture projection problems are from the small TV tube. Take off the back to reveal the TV and see what could be replaced?

    Aug 16, 2010 | Toshiba TN50V71 50" Rear Projection...

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    Red Hue

    Go into the service menu and turn down the red push and red cut a few notches. Write down every value in the service menu and be careful to make sure you don't change anything else. Also, turn down the brightness a couple of clicks and the red glow will be gone.

    Or, try this - Press Mute on the remote control twice, press Mute a third time and keep holding at the same time, press the Menu button on the TV front panel. If you do it correctly, you will see a small S on the screen. Congrats, you are in service mode. Press Menu on the remote to get to the adjustable settings. Be careful not to change anything without writting the original value down first. Also be careful of hitting other buttons on the remote. To reduce red push, Use the channel up down button until it says RCUT. Adjust the value using the volume button on the remote. I recommend setting RCUT to 80H, which is the preset value according to the service manual. To exit Service Mode, simply power off the TV. Good luck.

    Jul 04, 2010 | Toshiba 51H84 51" Rear Projection...

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    Toshiba TN50V71

    Shorted horz. output transistor

    Feb 09, 2009 | Toshiba TN50V71 50" Rear Projection...

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    Toshiba 42h82

    (Service mode display)
    3) While pressing the MUTE button,
    press MENU button on TV set.
    2) Press MUTE button
    again to keep pressing.
    1) Press MUTE button twice
    on Remote Control.
    1) Press MENU button on TV.
    Adjustment mode
    Service mode
    S Data
    The following key entry during display of adjustment menu provides special functions.
    Screen adjustment mode ON/OFF: TV (ANT)/VIDEO button (on TV)
    Selection of the adjustment items : Channel s/t (on TV or Remote)
    Change of the data value : Volume s/t (on TV or Remote)
    Adjustment menu mode ON/OFF : MENU button (on TV)
    Initialization of the memory (QA02) : RECALL+Channel button on TV (s)
    Initialization of the self diagnostic data: RECALL+Channel button on TV (t)
    “RCUT” selection : 1 button
    “GCUT” selection : 2 button
    “BCUT” selection : 3 button
    “SCNT” selection : 4 button
    “SCOL” selection : 5 button
    “TNTC” selection : 6 button
    Convergence adj : 7 button
    Self diagnostic display : 9 button

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    Adjust Picture on Rca Projection TV

    check the horizontal frequency and the electrolytic filters used in it. damm sure there must be filter that make it look like a concave. also check it by decreasing the width from the service mannual of processor. there is a service switch for every processor. that is his internal control unit. may be it is from the processor adjustment. you can set it by increasing or decreasing the frequency or display width-height clock pulse from the processor. to know about that perticular switch you must concern to the company....

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    Nov 10, 2007 | Toshiba TN50V71 50" Rear Projection...

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    Samsung HCP4752W

    You can not change a value in 480p or 1080i unless that is the incomming signal type. Unless you really understand these setting I would be careful of changing any.

    Apr 13, 2007 | Samsung HC-P4752W 47" Rear Projection...

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    Toshiba 55H70 convergence problem fixed but now gone

    I just posted a question about a convergence problem( juice07 ). I am unable to adjust the red color in the convergence adjustment mode. Did you have a similar problem ?? Please help.

    Sep 28, 2006 | Toshiba TP50H50 50" Rear Projection...

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