Question about Samsung HLP4663W 46" Rear Projection HDTV

4 Answers

White shadows and shuts off

When we turn the TV on it works for a minute then then white ghost like shadows flicker around the images and the TV shuts off.
Our TV began shutting off a couple of months ago.
The amount of time it would stay on became shorter.
When it shut off all three (timer, lamp, standby/temp) indicators flash.
Replaced the lamp and color wheel.

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  • Dean Dec 03, 2008

    If it is the DMD board then it is probably not worth spending the $500 to replace it.
    Especially if it, like the colorwheel, does not solve the problem.
    What do you think?

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4 Answers

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  • 1,011 Answers

Dear Sir,

it is the problem of Convergence. Replace the convergence ic's contact the manufacturer to replace the parts. Most of the TV have come with the problem of convergence. You can also check thoroughly the power supply board.

Thanks
good luck

Posted on Dec 03, 2008

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  • Master
  • 734 Answers

 main control board is bad. Need to send it out for repair.

Posted on Dec 03, 2008

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  • futureloginn
    futureloginn Dec 03, 2008

    Check for short on 130Volt line. With the set unplugged clip the negative lead of your DMM to TP3 (Hot Gnd.) located on the Power Supply Panel. Connect the positive lead to TP7 (130 Volt source). Reading should be >100k. If a short is shown--and with test leads still connected--unplug P108. If still shorted, problem is on power supply panel. Check Q10, Q11 and D13. If unplugging P108 removes short, check for shorted Q10 and D14 on the deflection panel. Important!! Replacing either panel without following this procedure will short out the new panel installed. Often, both panels must be replaced at the same time to avoid one shorting out the other.


  • futureloginn
    futureloginn Dec 10, 2008

    Check for short on 130Volt line. With the set unplugged clip the negative lead of your DMM to TP3 (Hot Gnd.) located on the Power Supply Panel. Connect the positive lead to TP7 (130 Volt source)


  • futureloginn
    futureloginn Dec 10, 2008

    main control board is bad. Need to send it out for repair.


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  • 306 Answers

The shutting of prob may be due to the lamp door switch is too sensitive and so better to  put a pad on the bottom left corner of the door to push the switch down further. 

Posted on Dec 03, 2008

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  • Master
  • 2,296 Answers

If the video turns black and white and freezes before the TV turns OFF then is more likely the DMD board that is defective.
Click here to see if they have the DMD board.

Posted on Dec 03, 2008

  • 1 more comment 
  • Jaime Hernandez Dec 03, 2008

    You should find more info on this link about the failure on your TV. I repaired a DLP with the same symptoms about 4 weeks ago that was behaving the same way as yours with video for about 1 minute and then the video froze white and black before shutting down with the 3 LEDs blinking on the front.

  • Jaime Hernandez Dec 03, 2008

    It is up to you to decide if you want to spent that much money or save it for a newer TV.

  • Jaime Hernandez Dec 03, 2008

    If that was my TV and still does not work after installing a lamp and a color wheel to it, I will probably sell it to recoup some money.

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1 Answer

IMAGE STAYS ON FOR AN LONG TIME


Sounds possibly like image retention. If you watch the same channels often any recurring text, logos, or graphics, especially white colored, can ghost on the screen.(playing the same videogame for a long period can also have the same effect) Watching other programs or channels will cause the ghosting to disappear.

To prevent image retention you need to activate the TVs anti image retention mode(Called ISM Method). On Zenith and LG (the manufacturer of Zenith T
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If watching others channels or programs doesn't make the image disappear, change the ISM Method to either Color Wash or White Wash (don't use White Wash frequently, it over excites the plasma gas and can shorten the life of your TV if overused) for a few minutes and then return to Orbiter.

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3D image, ghost image, with shadows. how can I fix it?


Projection TV sets are known to have two common problems. The first problem that is common to these sets is convergence failure. When this happens the TV will usually look 3D, Wavy/Distorted, etc. It may also shutdown and blink an error code.

The second common problem with Projection TV sets is dull video, halos around objects, white looking video, or red overpowers the screen. This is commonly caused by the fluid in the lens being clouded overs.


You can find more details and solutions here on Fixya at the following link below. Or click HERE


3d884ac.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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Tv turns on but has a shadow around evrything


Do you have any speakers or magnets next to the tv? If so, that is not good.
It may be a convergance issue. Check to see if you have any adjustments on the back of your tv to adjust picture. If not, if may be a faulty capacitor that needs to be replaced

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YOU ARE EXPERIENCING THE EFFECT OF GHOSTING.
iT CAN BE FIXED

cREATE A 1200X1600 100% WHITE .GIF TO USE AS A SCREEN SAVER. (IN WINDOWS YOU CAN ADD IT TO MY PICTURES SLIDESHOW)

Set this slide show to run after 2 minutes of non use.
Set the nonitor to power off in a short amount of non use.
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S.O.S anyone out there


Projection TV sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - makes a chirping sound.
Example Photo:
5f6e85c.jpg
Problem #2 CRT Fluid has clouded over.

Symptoms


  • Dull Video, Washed out
  • White/Bright looking video
  • Halos around objects
  • Red/Orange looking
Example Photo:
ee1ca68.jpg

You can see more examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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2 Answers

Shadowing


GOOD DAY ND GOOD LUCK;

TRY THIS, IT WILL CORRECT CONCERN:

50V500 ONLY
GHOST: May be described as "Out of Convergence" but ghost is still attached to main image.
CONDITION:
A "ghost image" appearing to the left or right of images in the picture. Can be varying shades of a primary color (red, green, or blue) as well as gray. Can easily be seen in the 4 x 3 mode, at the edges of the picture.
CORRECTION:

To correct the problem, please do as follows:
  1. Access I2C Menu. (See page 57 of the Service Manual).
  1. To enter the I2C Service Menu, with power off, (on the front control panel) press and hold the INPUT button. Then press the POWER button for two seconds. The following Service Menu will appear.
03b_ghost_image01.gif Figure 1
  1. BEFORE CONTINUING: CONFIRM THAT THE R, G and B DRIVE ARE SET AT 40.
  • Be sure to press SELECT after each change to SAVE the new Data.


  1. Using the Remote Control joy stick, scroll down to next page (see Figure 2) until LCD ADJUST is highlighted.
03b_ghost_image02.gif Figure 2
  1. Move the joy stick to the right to cursor right once. The next page will appear with the word GHOST highlighted.
  2. Cursor right again, and a white screen will appear with a BLACK SQUARE in the center, as in Figure 3. You will see LCD ADJUST, followed by “SHP” and a number (value).
03b_ghost_image03.gif
Figure 3

  1. If the unit is out of adjustment, you will see a gray ghost on either side of the black square. Move the joystick to the right or to the left until the ghost disappears. The number values will change up or down.
    • If the ghost adjustment is off with a lower value, there will be a ghost to the left of the square.
    • If the ghost adjustment is off with a higher value, there will be a ghost to the right of the square.
  2. Once you get the square to look good without ghosts, press "SELECT" to save any data values that have been changed.
  3. Press the "EXIT" button three times to return to normal picture.
  4. Adjustment is completed
  5. I HOPE THIS WAS HELPFUL, big IRISH.




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1 Answer

Sony KP61HS10 and timewarner digital cable box. Don't know which is the problem. Problem is a blue/white ghost on all channels. Tried unplug both units, tried flash focus. Shadow/ghost is now curved image...


I'm going to guess that these ghosts are of different colors too. This is most likely a convergence problem. Try resoldering the pins on the convergence ICs first. If that fails, replace them.
These ICs are large and black, attached to a heatsink. They will be marked STKxxx.
Keep us posted.
Dan

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1 Answer

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I always start my Hitachi research at their website.........
www.HitachiServiceUSA.com...................T.

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