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Sanyo 46848 bright white screen

I purchased a Sanyo tv that had left side dark and ghosting. Having seen the problem before I assumed it was an lcd ribbon that wasn't making proper contact. The tv didn't come with a stand so I had laid it on its back on the table when I turned it on the picture was perfect, but I assumed it was because of the position. I elected to take the cover off and check the lcd ribbons. When o got the metal cover off to expose the lcd panel the screen went bright white with a negative image. I did find a ribbon not making proper contact , but could not get the screen to go back to normal. I'm at a loss

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  • Sanyo Master
  • 6,694 Answers

The TCON board or The LCD panel is Faulty.
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Posted on Dec 28, 2016

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Posted on Jan 02, 2017

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Samsung digimax i5


You are having the following problems:


White balance setting incorrect.


images are too bright
ㆍExposure is excessive
→ Reset exposure compensation



● Adjusting LCD Brightness
1. In any mode with the exception of Voice Recording mode,
press the MENU button.
2. Press the LEFT/ RIGHT button and select the [Setup]
menu tab.
3. Select the [LCD] menu by pressing the UP/ DOWN button
and press the RIGHT button.
4. Select a desired sub menu by pressing the UP/ DOWN
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[LCD] sub menu : Dark, Normal, Bright
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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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