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Question posted by brent11massie on November 15th, 2012

My Sony Kdf55wf655 Has A Big Discolored Hole In The Center Of The Screen. What?

My Sony KDF55WF655 has a big discolored hole in center of screen. I just replaced bulb assembly today with genuine Sony (Phillips) bulb. Also installed new thermal fuse. Sadly the hole on the screen is still there!!! Anything else I can do to fix??? Thanks for any advice! Brent

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Answer #1: Posted by TVDan on November 15th, 2012 8:54 PM

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this is a normal failure on any brand of LCD projection after many hours of usage. There are three LCD panels in the optical engine, one for each of the three primary colors (red, green and blue). The white light from the lamp is separated with filter and each color is passed through it's LCD panel with that colors portion of the picture with associated polarized plates, mirrors, and lenses. The three colors are recombined through a prism and passed through a the lens and bounced off the large mirror to the back of the screen assembly. Since people have a hard time seeing the color blue this path has lenses to intensify it, but as a result it causes extra heat that destroys the polarized plates and LCD panel. This staops the blue from working and that part will look yellowish. The repair requires a new optical engine and this is too expensive (and if you replace it the new one will fail too)

TV Dan

Related Sony KDF-70XBR950 Manual Pages

Operating Instructions - Page 2

... and your Sony dealer regarding ...Projection TV to radio or television reception, which the receiver is for other outlet unless the blades can radiate radio frequency energy and, if not installed and used in a residential installation. Owner's Record The model and serial numbers are located at the rear...television receiver for the remote control RM-Y914. MODEL: KDF-60XBR950, KDF-70XBR950...

Operating Instructions - Page 3

...screen to direct illumination or direct sunlight. In this product meets the ENERGY STAR® guidelines for energy efficiency. It is desirable to install the LCD Projection TV in a place subject to excessive dust or mechanical vibration. ❑ Avoid operating the LCD Projection TV... Partner, Sony Corporation has determined that face the screen with opaque drapery. If you will not be blurred...

Operating Instructions - Page 5

... that could result in a fire or electric shock. Installation Water and Moisture Do not use strong solvents such as a precaution against the possibility of the LCD Projection TV with a cloth or other similar surface. 5 It is normal for necessary ventilation. To remove dust from the screen, wipe it from overheating, these slots and openings...

Operating Instructions - Page 7

... of the LCD Projection TV. In some cases, the bulb bursts inside the lamp unit. (See "Replacing the Lamp" on page 13.) Cooling fan ❑ This LCD projection TV uses a cooling fan to prevent the internal temperature from behind the screen. When the projection lamp wears out after using the LCD projection TV for KDF-70XBR950 away from your LCD projection TV, and within...

Operating Instructions - Page 8

Contents Introducing the Sony LCD Projection TV Presenting the Sony LCD Projection TV 9 Using This Manual 10 Enjoying Your LCD Projection TV 11 Replacing the Lamp 13 Using Twin View 55 Using the Freeze Function 58 Using Wide Screen Mode 59 Using the Digital Program Guide Displaying the Digital Program Guide 60 Installing and Connecting the LCD Projection TV Contents 17 Inserting ...

Operating Instructions - Page 9

...new LCD projection TV include: ❑ Integrated HDTV: You can watch pictures from two different sources (1080i, 720p, 480p or 480i) simultaneously. ❑ Memory Stick® Viewer: Allows you to view on your LCD Projection TV screen...digital television programs... KDF-60XBR950 and KDF-70XBR950....Sony LCD Projection TV Introducing the Sony LCD Projection TV Presenting the Sony LCD Projection TV...

Operating Instructions - Page 10

... Similar controls are written for the secure transfer of your new LCD projection TV. 1 Installing and Connecting the LCD Projection TV This section guides you how to use your LCD projection TV settings. It shows you how to install your LCD projection TV, to connect your new components and to select the wide screen mode automatically. The i.LINK is not compatible with personal...

Operating Instructions - Page 11

... To minimize screen reflection, its light source. Inappropriate cleaning methods could damage the finishing. Note the following: ❑ After turning on your LCD projection TV is quite bright when your LCD projection TV, it may take a while before cleaning. For details on lamp replacement, see "Replacing the Lamp" on . 11 Replace the lamp with a new Sony XL-2100U replacement lamp (not...

Operating Instructions - Page 12

... condensed on the front of your LCD projection TV. Do not carry the LCD projection TV by placing hands under the front screen. Otherwise, this happens, leave the power on and let the moisture evaporate before using your LCD projection TV before going to sleep or going out. Introducing the Sony LCD Projection TV Notes on the remote control. When...

Operating Instructions - Page 13

... Do not touch the glass with a new one (not supplied). The used lamp Used lamp contains Mercury, Dispose According to replace the lamp with your fingers on the ...purpose other than replacement. Introducing the Sony LCD Projection TV Introducing the Sony LCD Projection TV Replacing the Lamp The projection lamp has a limited life which illuminates the picture. If the screen becomes dark,...

Operating Instructions - Page 14

... the new lamp out of the control panel cover to cool down before replacing it . 14 Loosen the screw in the right underneath with a coin or similar object and remove the control panel cover. Push and release the center in the upper of the box. 3 Remove the control panel cover. Introducing the Sony LCD Projection TV...

Operating Instructions - Page 15

.... Introducing the Sony LCD Projection TV 5 Loosen the two screws that secure the lamp, then pull out the lamp. Mount the new lamp securely into a plastic bag. 6 Mount the new lamp. Introducing the Sony LCD Projection TV 4 Loosen the screw with a coin or similar object to attach the new lamp securely. Never touch the front glass of the replacement lamp.

Operating Instructions - Page 16

.... ✍ Consult your Sony dealer for a Sony XL-2100U replacement lamp. ✍ Take great care when replacing the lamp or plugging in/unplugging the connecting cords. If you handle them roughly, the LCD projection TV may fall or be moved, and the TV stand or floor surfaces may be scratched. 16 Introducing the Sony LCD Projection TV 7 Mount the lamp...

Operating Instructions - Page 18

... screen bottom with one hand while grasping the top part with the other hand, as shown in the illustration below. A B 18 Do not grasp the pedestal or the front panel of the LCD projection TV. A B A B Do not grasp the pedestal or the front panel of the LCD projection TV, otherwise these parts might break off. Installing...

Operating Instructions - Page 33

...Sony remote control to operate your cable box, see "Programming the Remote Control" on page 48. ❑ Use the LCD projection TV remote control to change channels on your LCD projection TV when the signal is sent to the LCD projection TV... box. (Continued) 33 Installing and Connecting the LCD Projection TV Installing and Connecting the LCD Projection TV Connecting a VCR and Cable...

Operating Instructions - Page 87

Allows you to set the wide screen mode, adjust the vertical 94 center and vertical size in wide mode, and set up your channels,... Page Allows you to make adjustments to your LCD projection TV. Lets you are viewing. Using the Menus Using the Menus Overview Opening and choosing a menu 1 Press MENU to display the menu screen. 2 Press B or b to highlight the desired...

Operating Instructions - Page 95

... z The 4:3 Default functions only when the LCD projection TV receives 480i and 480p signals. Select to enlarge the 4:3 picture horizontally and vertically to fill the wide screen. Select to enlarge the 4:3 picture horizontally only, to an equal aspect ratio that fills the wide screen. z If 4:3 Default is automatically replaced with the 4:3 Default setting. Select to...

Operating Instructions - Page 108

... additional questions related to it is just static ❏ Be sure the Twin View window is ... connected to the LCD projection TV's A/V jacks (such as a VCR or DVD player) in the second window by pressing TV/VIDEO while in Twin ...by pressing TV/VIDEO. Replace the batteries. ❏ Check the orientation of your Sony television, please call our Customer Information Services Center at a ...

Operating Instructions - Page 109

... rotation. ❏ There might not have not inadvertently switched your Sony LCD projection TV remote. JPEG image displays ❏ JPEGs captured using your cable box to change channels, be sure to press FUNCTION repeatedly until the TV indicator lights up . ❏ If you replaced the batteries to the remote recently, the code numbers for the...

Operating Instructions - Page 111

... of detail, especially during fast-motion or dark scenes The compression used by certain digital broadcasts and DVDs may cause your LCD projection TV's screen to display less detail than 16:9 and bottom of the screen. Call your local Sony Service Center. ❏ Make sure the power cord is plugged in. ❏ Press POWER on your...