kdf-42we655 lcd panel pricelist

**The 2005 3LCD models are unique in that they are the only models between 2003 and 2007 that have not had a Sony warranty extension.***The expiration date of the extended warranty was originally 10/31/2008, but, based in part on the settlement of a class action lawsuit, on 11/12/2007, Sony extended the expiration date to 6/30/2009.

Most likely, all of the green discolorations occurred due to the presence of improperly polarized light in the green channel, arising from defective green polarizers and/or SXRD panels. There is more recent evidence from a subsequent SXRD class action lawsuit that green haze can be caused by skin oil or debris introduced during the manufacturing process (presumably, optical block assemblers touching the parts with their bare fingers). However, Sony claims that they cleaned such optical block parts in a clean room prior to releasing them.

Sony further claims that the yellow stains in the 2005 SXRDs, which tend to start in the upper or lower right corner, were caused by a "microscopic material" in the liquid crystal panels, disrupting their uniformity over time during prolonged exposure to UV light produced by the projection lamp. Sony claims that the extent of the discoloration depended on the amount of microscopic material present in the panel, which varied from TV to TV, and the frequency of usage by the consumer. They also claim that service records indicate that the issue always appeared within the first 3,000 hours of usage, if it was going to happen.

The blue discolorations seem to be the most common, particularly in the earlier (2003-2005) 3LCD models, although they are also observed in the more recent 3LCD models, as well as the SXRD models. These discolorations can take the form of blue blobs, haze, lines, bands, dots, star pattern, etc. In some cases, the discoloration is centered around an oval-shaped anomaly in the middle of the screen. In many cases, the discoloration (e.g., haze) is most visible on a gray background, but in other cases, the discoloration is visible on a black background (e.g., blobs). Once they become evident, the discolorations tend to accumulate and spread across the entire screen over the course of a few weeks to months.

The precise cause(s) of these discolorations have not been revealed by Sony, but the problem is well-known in the industry.Thediscolorations tend to be bluish in color,because the parts in the blue light path (particularly the blue polarizing filters and liquid crystalpanels) aresubject to the highest energy light (including UV) and heat. Photochemical and heat-based degradation of the blue polarizing filters can allow stray, improperly polarized blue light to pass through the blue LCD panel and onto the screen, leading to blue blobs on images that should be black. Photochemical and heat-based degradation of compounds in the blue LCD panel (e.g., the liquid crystal itself and/or alignment layers) can cause irregular distribution and/or alignment of the of the liquid crystal. This can lead to improper polarization of blue light as it passes through the damaged areas of the panel, resulting in the projection of stray blue light onto the screen.

images--typically called burn-in on older CRT and plasma displays. For example, this can occur in areas of black bars (e.g., letterboxes), in news ticker areas, or when pausing a program on a DVR.As the liquid crystal panels degrade over time, the

While the 2003-2004 3LCD models tend to have primarily blue discolorations, as described above, they can also suffer from stains in the yellow range, and this seems even more common in the newer 3LCD models (e.g., 2005-2006), particularly the A10s. These discolorations tend to start on the edges or appear within oval-shaped anomalies, and to spread over time. Similar to the yellow stains in the SXRDTM models, the yellow color arises due to light being completely blocked in the blue light pathdue to photochemical and heat-based damage (e.g., darkened areas on the orange-colored polarizing filter in the blue light path). The improper blockage of blue lightleaves the predominantly yellow light from the combined green and red light paths. TriState Module sells the orange-colored polarizing filter for the blue light path and reports that it can fix yellow discolorations.

On top of the high risk for blue discolorations described above, some2003-2004 3LCD modelsare also susceptible to developing an opaque, non-moving pattern on the screen, which is particularly evident on white or light backgrounds. This is referred to variously as stationary scribble, squiggly, random line, or road-mapping, and tends to be a solid color such as yellow, purple, or blue-green on a white background, but it varies somewhat depending on the specific color of the image on the screen.The problem tends to grow worse over time.

For the most part, this problem seems to have been caused by defective materials in a specific lot of LCD panels that were installed in the optical blocks, whichare particularly sensitive to damage arising from hot-cold (on-off) cycling. The color of the scribbles likely correlates with the light path with the damaged LCD panel. For example, damage to the blue panel may selectively block blue light in the damaged areas, leading to a yellow scribble (green plus red), damage to the green panel may lead to a purple scribble (blue plus red), or damage to the red panel may lead to a blue-green scribble. In some cases, different colored scribbles appear in different areas on the same TV, suggesting damage to multiple panels.

There is some evidence that leaving the TV on for an extended period (e.g., several days) can, at least temporarily, resolve or reduce this issue, perhaps by causing the defective panel to heat up, but this is not a complete or permanent fix.

For reference,in addition to liquid crystal projection technology (3LCD andLCoS/SXRDTM), othernewer technologies at the time included digital light processing (DLP) projection,plasma flat-panel,and LCD flat-panel. In the large screen market, DLP and plasma were in direct competition with liquid crystal projection in its heyday, and LCD flat-panels have overtaken the market as prices have come down on larger panels.

An industry group of LCD projection manufacturers called the "3LCD Group" was formed in 2004 to help market the 3LCD microdisplay technology. Sony is a member of this marketing group, and, along with Epson, accounted for most of the production of the LCD microdisplay panels used in the projection models. Although the current 3LCD Group web site refers only to front projectors, it included rear-projection TVs when they were in production. For example, see this version of the 3LCD Group web site archived in January of 2005. Here is an excerpt from a 1/7/2005 3LCD Group press release:

“As the U.S. market leader in microdisplay televisions, Sony has always been committed to providing consumers with video products that exceed their expectations,” said Mike Fidler, senior vice president in Sony Electronics’ Home Products Division. “3LCD technology fulfills this role by offering an ideal balance between superior performance, overall reliability and manufacturing efficiency.”

Liquid crystal projection TV sales and marketing efforts attempted to steer customers away from competing plasma TVs by citing a short 10,000-20,000-hour lifespanof the plasma tubes (less than 10 years at 3-6 hours per day).In addition, the longevity of competing DLP projection TVs was questioned based on the use of moving parts (DLP technology uses a spinning color wheel with millions of hinged micromirrors). Consistent with this, Sony and its 3LCD Group have released marketing statements such as the following:

It is generally accepted that liquid crystal flat-panel displays have an expected life span of about 60,000 hours(about 27 years at 6 hours per day)(e.g., site 1, site 2, site 3). The liquid crystal microdisplay panels in Sony"s 3LCD and SXRDTM TVs are a bit different than flat-panels. However, Sony and the 3LCD Group do not differentiate LCD flat panels and microdisplays when speaking about reliability. For example, the following statement can be found on the 3LCD Group web site:

Reliable, Road-Tested Tecnology: LCD technology surrounds us – HDTVs, PDAs, mobile phones, monitors and more...this powerful and road-tested technology is an optimal way to achieve sharp, beautiful images. 3LCD systems are reliable and use a simple optical design: 3 chips and 1 prism.

Furthermore, the estimated 60,000-hour lifespan of an LCD flat panel is actually based more on the longevity of the fluorescent back-lighting than the liquid crystal components themselves. So, if the lighting systems were replaceable on these units, the lifespan could, theoretically, be much longer.In liquid crystal projection systems, the lamps are, in fact, user-replaceable, and Sony has exploited this to further promote the longevity of the technology. They strongly promoted that their TVs only needed a lamp change every several years to restore the TV to a like-new condition. Here are some quotes from some of Sony"s marketing:

The Fountain of Youth - User-Replaceable UHP Lamp. In the past, the gradual loss of picture quality was just part of owning a TV. Once the picture got to a point where it was unwatchable, the TV was replaced and the process started over. Sony recognizes the investment in time and money that a TV represents. That is the reason that Grand WEGA comes with an ingenious user-replaceable UHP lamp. After countless hours of enjoyment, simply replace the lamp and your Grand WEGA is as good as the day you bought it. In fact, with Sony"s renowned quality, Grand WEGA may be the last TV you ever own.The implication from these quotes is that liquid crystal rear-projection TVs could have an even longer life than a liquid crystal flat-panel display, and even CRT-based TVs, due to the user-replaceable lamps. In fact, a "white paper" from Sony on their projection systems directly suggests that liquid crystal microdisplay (fixed-pixel) projection panels offer "far longer life" than CRT-based TVs (e.g., see page 23):

CRTs have phosphors that are subject to burn-in when an image stays on the screen too long...Fixed-pixel projector display panels are immune to burn-in, offering far longer life. And the SXRD panel is particularly robust.However, unlike flat-panel liquid crystal displays with non-damaging fluorescent back-lighting, the UHP lamps in Sony"s rear-projection TVs create substantial direct heat, direct light (e.g., ultraviolet), and indirect heat (produced by conversion of reflected light). This damaging energy is focused on the small filters and liquid crystal panels within the optical block, significantly reducing lifespan.

Despite its designation as an entry-level television, the 50WE655 is almost as feature packed as the other Sonys and equals most other microdisplays in spec-sheet bragging rights. The 1,386x788-pixel native resolution of its three LCD chips should qualify it to display every detail of 720p HDTV signals, but it doesn"t quite get there (see the Performance section for a full explanation). All other sources, such as DVD and standard TV, are converted to fit those pixels. Unlike many such displays, the 50WE655 does not come equipped to display computer video.

The 50WE655"s connectivity leaves little to be desired. On the rear panel is an HDMI input (with analog stereo inputs for use with DVI-to-HDMI converters), two broadband component-video inputs, three A/V inputs with S-Video, one VHF/UHF RF input with built-in ATSC tuner, one cable RF input, the CableCard slot, and an optical digital audio output. On the front panel, you"ll find another set of A/V inputs with S-Video, and a Memory Stick slot for viewing digital pictures from Sony digital cameras. As far as image quality goes, the 50WE655 appears almost identical to last year"s model--in short, pretty good, especially after some professional tweaking. Unfortunately, even the Warm color temperature was disappointingly blue before calibration, although afterward the grayscale was much better. See the geek box below for more technical information.

While Sony claims improved black-level performance, our tests did not bear that out. Last year we saw a leap forward from the previous year in black-level performance, but not this year. The deepest blacks appeared closer to very dark gray. In the Sony"s favor, low-level noise in the very dark opening scenes of the Alien DVD was minimal, which is not the case with earlier LCD RPTVs we"ve seen.

Despite the high resolution of the LCD chips, detail suffered in two areas. When we brought sharpness to 15 to eliminate edge enhancement, the picture was unacceptably soft. We also measured the set with a 720p resolution test from the Accupel HDG-3000 signal generator and found that it failed to display all of the resolution. (This is probably the result of two things: the set"s Fresnel/lenticular screen combination and the internal scalar"s rolling off the top of the video frequencies.) To be fair, most of the fixed-pixel sets we"ve tested at this resolution suffer from the same problem. Nonetheless, 1080i HD material from our DirecTV HD satellite feed looked pretty good. Detail was decent, with very good color saturation after calibration.

9-965-971-05 KDF-42WE655/50WE655

Specifications ................................................................................. 4 SECTION 3: DIAGRAMS..................................................................... 34 Warnings and Cautions .................................................................. 6 3-1. Circuit Boards Location ........................................................ 34 Safety Check-Out ........................................................................... 7 3-2. Printed Wiring Boards and Self-Diagnostic Function................................................................. 8 Schematic Diagrams Information ......................................... 34 3-3. Block Diagrams .................................................................... 36SECTION 1: DISASSEMBLY............................................................... 13 3-4. Schematics and Supporting Information .............................. 37 1-1. Rear Cover Removal............................................................ 13 A Board Schematic Diagram (1 of 3).................................... 37 1-2. Center Pillar Removal .......................................................... 13 A Board Schematic Diagram (2 of 3).................................... 38 1-3. Service Position .................................................................. 14 A Board Schematic Diagram (3 of 3).................................... 39 1-4. Fan and Chassis Assembly Removal................................... 14 B Board Schematic Diagram (1 of 6) ................................... 42 1-5. Power Supply Block Removal (Lamp Drive Unit)................. 15 B Board Schematic Diagram (2 of 6) ................................... 43 1-6. Fan, RF Antenna Switch, and P Board Removal ................. 15 B Board Schematic Diagram (3 of 6) ................................... 44 1-7. U Board Removal................................................................. 16 B Board Schematic Diagram (4 of 6) ................................... 45 1-8. F Board and G1 Board Board Removal ............................... 16 B Board Schematic Diagram (5 of 6) ................................... 46 1-9. A Board and KD Board Removal.......................................... 17 B Board Schematic Diagram (6 of 6) ................................... 47 1-10. Q Box Assembly, and B Board Removal.............................. 17 G2 Board Schematic Diagram (1 of 2) ................................. 50 1-11. G2 Board Removal............................................................... 18 G2 Board Schematic Diagram (2 of 2) ................................. 51 1-12. T Board Removal ................................................................. 18 P Board Schematic Diagram ............................................... 54 1-13. Woofer Removal .................................................................. 18 KD Board Schematic Diagram ............................................. 55 1-14. H3 Board Removal (KDF-42WE655 Only)........................... 19 G1 Board Schematic Diagram (1 of 2) ................................. 57 1-15. Front Cover Assembly Removal........................................... 19 G1 Board Schematic Diagram (2 of 2) ................................. 58 1-15-1. Replacing the Lamp................................................. 19 F Board Schematic Diagram ................................................ 61 1-16. HM Board Removal (KDF-42WE655 Only).......................... 20 HM Board Schematic Diagram............................................. 63 1-17. H3 Board and HM Board Removal (KDF-50WE655 Only)... 20 H1 Board Schematic Diagram.............................................. 65 1-18. H2 Board Removal............................................................... 21 H2 Board Schematic Diagram.............................................. 67 1-19. H1 Board Removal............................................................... 21 H3 Board Schematic Diagram.............................................. 68 1-20. Screen Mirror Block Assembly Removal .............................. 22 T Board Schematic Diagram ................................................ 69 1-21. Mirror Cover Assembly and Speaker Removal .................... 23 U Board Schematic Diagram................................................ 70 1-21-1. Diffusion plates (Screens) Tape Method.................. 23 3-5. Semiconductors ................................................................... 72 Wire Dressing ............................................................................... 24 SECTION 4: EXPLODED VIEWS........................................................ 73SECTION 2: CIRCUIT ADJUSTMENTS.............................................. 28 4-1. Cover.................................................................................... 73 2-1. Setting the Service Adjustment Mode .................................. 28 4-2. Bottom Cabinet (KDF-42WE655 Only) ................................ 74 2-2. Service Adjustment Mode Memory ...................................... 28 4-3. Bottom Cabinet (KDF-50WE655 Only) ................................ 75 2-3. Memory Write Confirmation Method .................................... 29 4-4. Chassis ................................................................................ 76 2-4. Remote Adjustment Buttons and Indicators ......................... 29 4-5. Optical Unit Block................................................................. 77 2-5. H/V Center Confirmation and Adjustments .......................... 30 2-6. Service Data......................................................................... 31 SECTION 5: ELECTRICAL PARTS LIST........................................... 78

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Power Requirements 120V AC, 60Hz Control S (IN) Power Consumption (W) 230W 1 total In Use (Max) Under 20W Minijack In Standby HDMI IN Control S (OUT) Inputs/Outputs Video - 1080i, 720p, 480p, 480i 1 total Audio - Two channel linear PCM 32, 44.1 and 48 kHz, Minijack 16, 20, and 24 bit Component Video Input Video (IN) 2 (Y, PB, PR) 4 total (1 on front panel) Y: 1.0 Vp-p, 75 ohms unbalanced, sync negative 1Vp-p, 75ohms unbalanced, sync negative PB: 0.7 Vp-p, 75 ohms; S Video (IN) PR: 0.7 Vp-p, 75 ohms 4 total (1 on front panel) RF Inputs Y: 1Vp-p, 75ohms unbalanced, sync negative 2 total C: 0.286Vp-p (Burst signal), 75ohms Digital Audio Optical Output (PCM/Dolby Digital) Audio (IN) 1 total 7 total (1 on front panel) Optical Rectangular (1) 500 mVrms (100% modulation) CableCARD Slot Impedance:47 kilo ohms 1 total Audio (VAR/FIX) Out PCMCIA Type I/II 1 total 500 mVrms at the maximum volume setting (Variable) 500 mVrms (Fixed) Impedance (Output):2 kilo ohm Note: Audio Out jacks are operable only when the TV’s speaker is set to Off.

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To reset the lamp time press Channel 3 Mute Enter . WRI-EXE(Character color is Red) is momemtarily displayed and LampTM is reset to “0”.4. To display the Panel time, press Channel 1 7 times

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2 Connector 1 Four screws (+TPTWH 4x25)KDF-42WE655/50WE655 18 KDF-42WE655/50WE655

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MS panel 3 Two screws (+BVTP 4x16) 4

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☛2-1. SETTING THE SERVICE ADJUSTMENT ☛ SERVICE MENUS MODE (CATEGORIES ONLY) To adjust various set features, use the Remote Commander to put the WEM 2 PANEL set into service mode to display the service menus. TV Q BOX (WEGA ENGINE) (DISPLAY ENGINE) 1. TV must be in standby mode. (Power off). 2. Press the following buttons on the Remote Commander within a VERSION QM DCP-INT OP second of each other: DISPLAY Channel 5 Volume + POWER . CXA2209Q QT DCP-OSD A7001R The first service menu (TV) displays. AP DCP-BLK A7001G 3. To display the service menu that contains the category you want to adjust, press JUMP on the Remote Commander. DLBY DCP-ADJ1 A7001B (Refer to Service Menus) BUSSW DCP-ADJ2 GB_RGB Service Menu Category CXA2103 DCP-USER FAN_CNT1 In c r e m e n t st e p s FAN_CNT2 CXA2163 DCP-AVP

Adjustment DELAY (1-2) OP D9809TPN item Sample Panel (Display Engine) Service Menu OSD D9809CUR

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MAX MIN CATEGORY # ITEM DESCRIPTION CONDITION DCP_ADJ1 11 SCOL Component-480i 200 200 0 255 Component-480p 201 201 0 255 Component-1080i 213 213 0 255 Component-720p 213 213 0 255 ATSC-480i 180 180 0 255 ATSC-480p 179 179 0 255 ATSC-1080i 178 178 0 255 ATSC-720p 189 189 0 255 ATSC-TEXT 190 190 0 255 HDMI-480i 200 200 0 255 HDMI-480p 201 201 0 255 HDMI-1080i 213 213 0 255 HDMI-720p 213 213 0 255 HDMI(VGA etc) 201 201 0 255 MemoryStick(MPEG1) 190 190 0 255 MemoryStick(MPEG2) 190 190 0 255 MemoryStick(PHOTO) 190 190 0 255 MID_1 9 MDHP Panel-0:Normal(SidePanel) 107 107 0 255 Panel-0:Window SidePanel 255 255 0 255 Panel-0:Twin(Center) 17 17 0 255 Panel-0:Favorite 21 21 0 255 Panel-0:Other 12 12 0 255 CCPM_1 20 CVYL Single:UV 183 183 0 255 Single:Video 193 193 0 255 UV(Twin/Favorite/Index) 171 171 0 255 Video(Twin/Favorite/Index) 171 171 0 255 21 CVCL Single:UV 128 128 0 255 Single:Video 133 133 0 255 UV(Twin/Favorite/Index) 136 136 0 255 Video(Twin/Favorite/Index) 136 136 0 255 26 SHUE Single:UV 32 32 0 63 UV(Twin/Favorite/Index) 32 32 0 63

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3-2. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS INFORMATIONAll capacitors are in µF unless otherwise noted. pF : µµF 50WV or All voltages are in V.less are not indicated except for electrolytics and tantalums. S : Measurement impossibility.All electrolytics are in 50V unless otherwise specified. : B+line.All resistors are in ohms. kΩ=1000Ω, MΩ=1000kΩ : B-line. (Actual measured value may be different).Indication of resistance, which does not have one for rating : signal path. (RF)electrical power, is as follows: Pitch : 5mm Rating electrical power : 1/ 4 W Circled numbers are waveform references.1 / 4 W in resistance, 1/10 W and 1/16 W in chip resistance. : nonflammable resistor : fusible resistor The components identified by shading and ! symbol are critical for safety. Replace : internal component only with part number specified. : panel designation and adjustment for repair The symbol indicates a fast operating fuse and is displayed on the component : earth ground side of the board. Replace only with fuse of the same rating as marked. : earth-chassisAll variable and adjustable resistors have characteristic curve B, Les composants identifies per un trame et une marque ! sont critiques pour launless otherwise noted. securite. Ne les remplacer que par une piece portant le numero specifie.Readings are taken with a color-bar signal input. Le symbole indique une fusible a action rapide. Doit etre remplace par uneReadings are taken with a 10MΩ digital multimeter. fusible de meme yaleur, comme maque.Voltages are DC with respect to ground unless otherwise noted.Voltage variations may be noted due to normal productiontolerances.

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ANT SW LCD LVDS LCD LVDS DRIVER CATV OOB Panel 11$#%.- A7001 TU VSB LCD-Engine LCD-Engine LCD PAWN LCD QAM micro micro JEPICO DRIVER 65 MB90330 3D-G Panel MB90330 D A7001 Air IF Pack LCD LCD LCD Engine DRIVER Panel POD Service OSD A7001 %$QCTF /Cable Card POD 65 PCMCIA Controller 36$QCTF )$QCTF Audio 65 Analog S-master Amp SPEAKER #WFKQ to PCM D9788 CXD9774 (L) PCM1802 8KFGQ ($QCTF AudioAmp SPEAKER USB1.1 75$ ATi KRR CXD9774 (R) MS Memory Stick ЊMS X226 K Analog Audio LVDS S-master */$QCTF )TCRJKEU)7+ to PCM Amp WOOFER D9788 4)$;U;O*U[PE PCM1802 CXD9774 )$QCTF &KIKVCN 3/$QCTF -&$QCTF /QFWNG

KDF-42WE655/50WE655 36 KDF-42WE655/50WE6553-4. SCHEMATICS AND SUPPORTING INFORMATION A BOARD SCHEMATIC DIAGRAM (1 OF 3) 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 A BOARD WAVEFORMS CN8009 1

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KDF-42WE655/50WE655 D8200 D8301 D8302 D8501 D8701 D8702 A A

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