Question about Toshiba 55H70 55" Rear Projection Television

1 Answer

Image is streaked and wavvy until set warms up

When I turn on the television, the image is extremely wavy (horizontally) and had bright white streaks flaring more or less vertiaccly. Over the next ten minutes it gradually improves until the image is fine - as good as ever.

Is this fixable? Or is my set dying? It is about five years old but I would like to get another year or two out of it.

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  • Tinl May 09, 2008

    Well, that's cheaper than buying a new televison, I guess. Thank you for your help

  • Tinl May 09, 2008

    One further question - will it get progressively worse and/or fail completely? Or is this as bad as it is likely to get?



    Thanks again.



    PS - Any chance your shop is in Contra Costa COunty in California.

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Ok Good new it is fixable...bad new not cheap. what has happen is that on a cuircit board known as the "hypermodule" there are some capcitors that have failed...these are very small capacitors known a surface mounts. toshiba has a bulletin on this and they will need replaced... these are difficult to replace even for a technician. ideally it would be better to replace the module but these are hard to find. typical repair for my shop runs about 450 to replace the caps...delecate work ..the board can be damaged. and like i said not replacable...

Posted on May 09, 2008

  • Willie Howell May 09, 2008

    Your welcome.. i have seen a few of these and i believe they do get worse over time....unfortunattly my shop is in little rock ar..it will take longer to clear picture.. i have heard that hd signals or different inputs are better.. i have not confirmed this.. this board processes vidieo signals so it might be true. if you need any more advice ... willie at fordtv.com

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How do i re align the head on aMX432 cannon


  1. Open the printer driver setup window
  2. Click Custom Settings on the Maintenance tabThe Custom Settings dialog box opens.
  3. Switch head alignment to manual
    Check the Align heads manually check box.
  4. Apply the settings
    Click OK and when the confirmation message appears, click OK.
  5. Click Print Head Alignment on the Maintenance tab
    The Start Print Head Alignment dialog box opens.
  6. Load paper in the machine
    Load three sheets of A4 size or Letter size plain paper into the front tray.
  7. Execute head alignment
    Make sure that the machine is on and click Align Print Head.
    Follow the instruction in the message.
  8. Check the printed pattern
    Enter the numbers of the patterns with the least amount of streaks in the associated boxes.
    Even if the patterns with the least amount of streaks are clicked in the preview window, their numbers are automatically entered in the associated boxes.
    print_pattern1.gif
    When you have entered all the necessary values, click OK.
    [img src="http://ugp01.c-ij.com/ij/webmanual/PrinterDriver/W/MX450%20series/1.0/EN/PPG/images/i_note.gif" alt="" >Note
    • If it is difficult to pick the best pattern, pick the setting that produces the least noticeable vertical streaks.
      vertical.gif(A) Least noticeable vertical streaks
      (B) Most noticeable vertical streaks
    • If it is difficult to pick the best pattern, pick the setting that produces the least noticeable horizontal streaks.
      horizontal_black.gif
      (A) Least noticeable horizontal streaks
      (B) Most noticeable horizontal streaks
  9. Confirm the displayed message and click OK
    The second pattern is printed.
  10. Check the printed pattern
    Enter the numbers of the patterns with the least amount of streaks in the associated boxes.
    Even if the patterns with the least amount of streaks are clicked in the preview window, their numbers are automatically entered in the associated boxes.
    print_pattern2.gif
    When you have entered all the necessary values, click OK.
    [img src="http://ugp01.c-ij.com/ij/webmanual/PrinterDriver/W/MX450%20series/1.0/EN/PPG/images/i_note.gif" alt="" >Note
    • If it is difficult to pick the best pattern, pick the setting that produces the least noticeable vertical streaks.
      vertical.gif(A) Least noticeable vertical streaks
      (B) Most noticeable vertical streaks
  11. Confirm the displayed message and click OK
    The third pattern is printed.
  12. Check the printed pattern
    Enter the numbers of the patterns with the least noticeable horizontal stripes in the associated boxes.
    Even if the patterns with the least noticeable horizontal stripes are clicked in the preview window, their numbers are automatically entered in the associated boxes.
    print_pattern3.gif
    When you have entered all the necessary values, click OK.
    [img src="http://ugp01.c-ij.com/ij/webmanual/PrinterDriver/W/MX450%20series/1.0/EN/PPG/images/i_note.gif" alt="" >Note
    • If it is difficult to pick the best pattern, pick the setting that produces the least noticeable horizontal stripes.
      horizontal_cyan.gif(A) Least noticeable horizontal stripes
      (B) Most noticeable horizontal stripes

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Hi,

The problem you describe sounds like moire.

Try scanning the image at different resolutions until the effect disappears.

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Streaks or lines


Vertical streaks:
Check,which color/s streaks are appearing on print out,remove that cartridge/s check on drum surface for streaks.. if found replace that cartridge/s..check.
Horizontal streaks:
This problem appears when the cartridge/s image drum not rotating properly. Resit the cartridges properly, print 20nos of blank pages, then check.... replace the cartridge..

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This started out as error 5200. Now, my Canon MX340 printer isn't connecting to the computer. The computer acts like the printer hasn't been installed. I tried to remove the printhead and restart...


Issue: How do I align the print head?
Solution: Perform a Print Head Alignment (Windows)- MX340

Aligning the Print Head Position Print head alignment corrects the installation positions of the print head and improves deviated colors and lines. The procedure for performing print head alignment is as follows:

alignike.gif Print Head Alignment

  1. Open the printer driver setup window
    • In Windows Vista, select the Start menu -> Control Panel -> Hardware and Sound -> Printers.

    • In Windows XP, select the Start menu -> Control Panel -> Printers and Other Hardware -> Printers and Faxes.

    • In Windows 2000, select the Start menu -> Settings -> Printers.


  2. Right-click your model name icon, and then select Printing Preferences from the displayed menu.

    The printer driver setup window appears.

  3. Click Custom Settings on the Maintenance tab.
    The Custom Settings dialog box opens.

  4. Check the Align heads manually check box.

  5. Click Send, and click OK when the confirmation message appears.

  6. Click Print Head Alignment alignike.gif on the Maintenance tab The Start Print Head Alignment dialog box opens.



  7. Load three sheets of A4 size or Letter size plain paper into the rear tray (3).

    t_10410ce_mx34014.jpg

  8. Execute head alignment Make sure that the machine is on and click Align Print Head.
    Follow the instruction in the message.

  9. Check the printed pattern
    Enter the numbers of the patterns with the least amount of streaks in the associated boxes.
    Clicking the patterns with the least amount of streaks in the preview window, will automatically set their numbers in the associated boxes.

    print_pattern1.gif

  10. When you have entered all the necessary values, click OK.

    Note:
    • If it is difficult to pick the best pattern, pick the setting that produces the least noticeable vertical white streaks.

      vertical_ab.gif
      (A) Less noticeable vertical white streaks
      (B) More noticeable vertical white streaks

    • If it is difficult to pick the best pattern, pick the setting that produces the least noticeable horizontal white streaks.

      horizontal_ab_black.gif
      (A) Less noticeable horizontal white streaks
      (B) More noticeable horizontal white streaks

  11. Confirm the displayed message and click OK.
    The second pattern is printed.
    Important: Do not open the Scanning Unit (Cover) while printing is in progress.

  12. Check the printed pattern
    Enter the numbers of the patterns with the least amount of streaks in the associated boxes.

    Clicking the patterns with the least amount of streaks in the preview window, will automatically set their numbers in the associated boxes.

    print_pattern2.gif

  13. When you have entered all the necessary values, click OK.

    Note:
    • If it is difficult to pick the best pattern, pick the setting that produces the least noticeable vertical white streaks.

      vertical_ab.gif
      (A) Less noticeable vertical white streaks
      (B) More noticeable vertical white streaks


  14. Confirm the displayed message and click OK.
    The third pattern is printed.
    Important: Do not open the Scanning Unit (Cover) while printing is in progress.

  15. Check the printed pattern
    Enter the numbers of the patterns with the least noticeable horizontal stripes in the associated boxes.

    Clicking the patterns with the least noticeable horizontal stripes in the preview window, will automatically set their numbers in the associated boxes.

    print_pattern3.gif

  16. When you have entered all the necessary values, click OK.

    Note:
    • If it is difficult to pick the best pattern, pick the setting that produces the least noticeable horizontal white stripes.

      horizontal_ab_cyan.gif
      (A) Less noticeable horizontal white stripes
      (B) More noticeable horizontal white stripes
Note: To print and check the current setting, open the Start Print Head Alignment dialog box, and click Print Alignment Value.

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Hello,

The problem is mainly from the lamp of the television, it is about to develop some fault, so i will advice you have it checked and replaced. Before it gets worse.

Good luck and take care.

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