Text preview for : Introduction.pdf part of Mitsubishi VS-50805, WT-60805, WS-55905, WS-65905, WS-73905, WS-55805, WT-46805 Mitsubishi VS-50805, WT-60805, WS-55905, WS-65905, WS-73905, WS-55805, WT-46805 (Chassis V16 N W) (Training Manual + Schematic)
Back to : Mitsubishi VS-50805, 6080 | Home
The V16 chassis line offers NTSC receivers that are Digital TV (DTV) capable. When connected to an appropriate Advanced TV (ATV) Receiver, the sets can produce pictures broadcast in the DTV Standard set by the Advanced Television Systems Committee (ATSC). The Digital Television Standard is divided into two categories capable of eighteen video formats: 1) SDTV - Standard Definition TV 2) HDTV - High Definition TV All formats convert the original analog signal to digital, then compress and transmit the digital data. The receiver must reverse the process, decompressing the data and converting it back to the original analog signals. All formats also utilize ghost cancellation. Table 1 compares the DTV video formats in regard to active horizontal lines, pixels (samples) per line, picture aspect ratio, picture repetition rate, and scanning methods. In the Picture Rate column, an I indicates interlace scanning, and a P progressive scanning. SDTV SDTV is comprised of twelve video formats. Either progressive or interlace scanning may be used. Two picture aspect ratios may be used, conventional 4:3, or the new 16:9 ratio. The choice of picture rates provides compatibility with most NTSC, Motion Picture and Computer System materials. The pixel count is for the active portion of each horizontal line. 704 pixels results in horizontal resoSDTV HDTV
lution that is slightly better than the NTSC format. The 480i active horizontal scan lines is the same as the NTSC standard. Since the horizontal resolution and the number of active horizontal lines are roughly the same as the NTSC format, the picture quality is basically the same. However, digital transmission solves most problems associated with snow and ghosts, resulting in an improved picture. Under marginal signal conditions, all or part of a DTV picture will simply freeze momentarily. The 480 line/640 pixel format is not used for any current video production. However, since it corresponds to the PC VGA graphics format it will probably be used in the future. HDTV HDTV has six video formats. All HDTV video formats increase the number of active horizontal lines and the number of pixels per line. This results in an improved high resolution picture. HDTV features a 16:9 aspect ratio using progressive and interlace scanning. As with SDTV, the various picture rates provide compatibly with most NTSC, Motion Picture and Computer System materials. DTV Channels Due to the compression, encoding and modulation method used in the ATSC standard, DTV channels can be made up of major (main) channels and minor (sub) channels. A major channel can have several minor channels. Channel availability is determined by the broadcast station.
Horiz. Lines Pixels Aspect Ratio Picture Rate 480 640 4:3 60P, 60I, 30P, 24P 480 704 16:9/4:3 60P, 60I, 30P, 24P 720 1280 16:9 60P, 30P, 24P 1080 1920 16:9 60I, 30P, 24P Table 1: DTV Video Formats
The V16 Chassis is Mitsubishis second generation of HDTV upgradeable Projection Televisions. Like the previous generation VZ6 and V15 chassis, it offers the highest analog performance available and can be upgraded to a true High-Definition television. Models designated as V16N have a screen with a 4:3 aspect ratio while V16W models have a 16:9 widescreen display. Features In addition to the high end features usually found on Mitsubishi projection televisions, the V16 Chassis also include the following high performance features: DTV Receiver Inputs Component Video Inputs Diamond Digital MultiplierTM Line Doubler 3D Y/C Comb Filter Multiple Image System - (V16W) PIP Audio Output - (V16W) Picture Format In addition to the ability to interface with a Mitsubishi DTV receiver, HD-1080, the V16 chassis offers additional DTV receiver input flexibility. The V16 comes with the ability to accept HighDefinition Component Video (Y, Pr, Pb) or HighDefinition RGB Video. The RGB Video inputs can have either Sync on Green or separate H and V Sync inputs. These inputs can be in the 480i, 480p or 1080i video signal format. This allows a variety of components to be used as a SD or HD source. Component Video inputs offer a high performance analog interface. This input consists of three dis-
V16 Features and Specifications
crete connections, Luminance (Y), and the Cr and Cb color difference signals. It is the interface of choice when using a DVD player. Compared to SVideo, Component Video provides increased color bandwidth, resulting in sharper color detail and transitions. Many DVD players are now capable of outputting a progressive scan format. To accommodate this high performance output, the V16 chassis DVD Component Video inputs (Y, Cr, Cb) can process signals in either the 480p or 480i format. Mitsubishis Diamond Digital MultiplierTM enhances analog NTSC, DVD/Component, and Standard Definition TV (480i) source material through a line doubling process. Doubling the number of horizontal lines, and the horizontal scan frequency, results in a image with no visible scan lines. This makes todays analog program materials appear smoother and more lifelike. In the V16 chassis, the user is allowed to select either a 480p or 960i display. The use of a 3D Y/C Comb Filter ensures artifact free luminance and chrominance separation by digitally storing an entire video frame and analyzing the picture transitions. The best separation process is then used based on the picture content. The Multiple Image System takes advantage of the V16W Chassiss 16:9 aspect ratio to display POP (Picture-Outside-Picture) images in a variety of ways including: Two pictures side by side.
The Main picture plus 3 smaller images.
The Main picture plus 9 smaller images.
Standard PIP displays are also available. The user can cycle through the Multiple Image System by repeatedly pressing the PIP Button until reaching the desired display. Note: Due to the complexity of the circuitry required to combine pictures sourced from different formats, the following PIP/POP limitations apply: When Ant-A is the main picture, Ant-B can not be the PIP/POP. When either DVD 480p, DTV 480p or HDTV 1080i is the main picture, PIP/POP is not available. The DTV and DVD Component Inputs cannot host each other as a PIP/POP. The same picture cannot be displayed as a side by side POP. The PIP Audio Output jacks (V16W only) can be connected to an external audio system or wireless headphones so the audio track for the secondary picture can be used. The Format feature allows the viewer to zoom in on and/or stretch the raster to optimize the picture size or shape for the best possible display.
A Special Note About Uneven CRT Aging On a 4:3 display, a 16:9 source will have stationary blank areas at the top and bottom of the screen. On a 16:9 display, a 4:3 source will have stationary blank areas to the left and right of the picture. Prolonged display of such images can cause uneven aging of the CRT phosphor. The Format feature can minimize this effect if is used to fill the screen with a full display whenever possible. As a rule, same/stationary images should not be shown for more than 15% of the total TV viewing in any one week. Other sources of stationary images that should be remembered are: Stock-market, news or weather reports displayed as a constant banner at the top or bottom of the screen. Shopping channel logos or pricing displays. Bright station logos. Inter-net web site displays. Video game patterns or score boards. Computer generated displays. Note: Uneven CRT aging is not covered under the manufacturers limited warranty. While this topic is covered in the Owners Guide, some customers may request further explanation from the service technician. Help spread the word! The good will generated by helping a customer extend the life of his or her big screen investment will go a long way when the customer considers future service. Feature and Specification Summary Select features and specifications of the models within the V16 family are summarized in Table 2 on the following page.
V S -60805 Model V S -50805 Cha ssis V 16N V 16N Aspe ct Ra tio (4:3) (4:3) S pe cia l Control Fe a ture s Form at-Z oom A djustm ent anam orphic anam orphic wide sc reen wide sc reen m ode m ode IRIS A uto b rightness /contrast control l l Color tem perature control high, m id, high, m id, low = low = 6500 o K 6500 o K A uto Picture (auto sharpness /color) l l Digital convergence adjustm ent. 64 point 64 point V -Chip- Lock by Tim e w ith TV Lock by l l Tim e V IDEO De ta il Enha nce m e nts Com b filter 3D Y /C 3D Y /C Horiz ontal Resolution (lines) 1200 1200 Dynam ic Beam Form ing l l V elocity S can M odulation Not Not Necess ary Necess ary Diam ond Digital Pixel M ultiplier l l O ptica l S yste m S creen siz e 50" 50" A spect Ratio 4:3 4:3 CRT siz e 7" 7" M ulti-coated Lens system 5 elem ent 5 elem ent Hybrid Hybrid Black Diam ond, black m atrix Lenticular l l screen Thin fresnel lens l l S creen Pitch (m m ) 0.52 m m 0.52 m m Front reflective surface m irror l l M ulti-step focus l l Contra st, Brightne ss, Room V ie w ing Dynam ic black level expansion l l Horiz ontal V iew ing angle 110 o 110 o V ertical V iew ing angle 34 o 34 o Contrast ratio - dark Room 50:1 50:1 Contrast ratio - bright room (250 lux) 27:1 27:1 INP UTS A ntenna (RF) inputs 2 2 Front A /V inputs w ith S -V ideo 1 1 Rear A /V with S -V ideo 2 2 Com ponent V ideo inputs Y CrCb 480i 480p 1 set 1 set HDTV V ideo inputs selectable 1 set 1 set RGBHV /Y PrPb M itsubishi High-Definition Interface TM (H D I) 1 set 1 set O UTP UTS Cable Loop (RF) output l l M onitor A /V output (fixed/variable audio) 1 1 PIP A udio output IR blaster port Hom e Theater 1 1 A ctive A V Netw ork 1 1 G ENERAL Dim e nsions (a pprox . in.) Height 50-15/16 60-3/16 W idth 42-3/8 50-9/16 Depth 27-1/16 29-1/32 Height on M atching base W eight (approx. lbs.) 196 251
W T-46805 V 16W (16:9) ex pand and zoom l high, m id, low = 6500 o K l 64 point l
W S -55805 V 16W (16:9) ex pand and zoom l high, m id, low = 6500 o K l 64 point l
W S -55905 V 16W (16:9) ex pand and zoom l high, m id, low = 6500 o K l 64 point l
W S -65905 V 16W (16:9) ex pand and zoom l high, m id, low = 6500 o K l 64 point l
W S -73905 V 16W (16:9) ex pand and zoom l high, m id, low = 6500 o K l 64 point l
3D Y /C 1200 l Not Necess ary l 60" 4:3 7" 5 elem ent Hybrid l l 0.52 m m l l l 110 o 34 o 50:1 27:1 2 1 2 1 set 1 set 1 set l 1 l 1 1
3D Y /C 1200 l Not Necess ary l 70" 4:3 7" 5 elem ent Hybrid l l 0.52 m m l l l 110 o 34 o 50:1 27:1 2 1 2 1 set 1 set 1 set l 1 l 1 1
3D Y /C 1200 l Not Necess ary l 70" 4:3 9" 5 elem ent Hybrid l l 0.52 l l l 110 o 34 o 50:1 27:1 2 1 2 1 set 1 set 1 set l 1 l 1 1
3D Y /C 1200 l Not Necess ary l 65" 16:9 7" 5 elem ent Hybrid l l 0.72 l l l 120 o 34 o 50:1 27:1 2 1 2 1 set 1 set 1 set l 1 l 1 1
3D Y /C 1200 l Not Necess ary l 73" 16:9 9" 6 elem ent Hybrid l l 0.72 l l l 120 o 34 o 50:1 27:1 2 1 3 1 set 1 set 1 set l 1 l 1 1
37-13/32 41-9/16 27-15/16 50-13/32 166
51-9/16 50-9/16 28-5/16 250
51-9/16 49-7/8 28-5/16 302
61-7/16 58-7/32 28 375
65-3/4 65-3/16 29-15/16 441
T able 2: Features and Specfications