Panasonic LCD Projector PT-L785U Operating Instructions
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ENGLISH-61 Care and maintenance The buttons on the projector do not function. The picture does not display correctly. Picture from computer does not appear.Problem Possible cause BThe “CONTROL KEY” may be set to “OFF”. In order to set the “CONTROL KEY” to “ON” without using the remote control unit, keep holding down the ENTER button on the projector and press the MENU button for more than 2 seconds. BThe signal format (“TV-SYSTEM”) may not be set correctly. BThere may be a problem with the video tape or other signal source. BA signal which is not compatible with the projector may be being input. BThe cable may be too long. BThe external video output for the laptop computer may not be set correctly. (You may be able to change the external output settings by pressing the [Fn]+[F3] or [Fn]+[F10] keys simultaneously. The actual method varies depending on the type of computer, so refer to the documentation provided with your computer for further details.) BIf an RGB INPUT indicator is turned off, the video signals may not be output from the computer. B“RGB2 SELECT” in the “OPTION” menu is set to “OUTPUT” when the signals are input to RGB2 IN / RGB OUT connector. Page 49 41 – 70 – – 14, 27 47 Before carrying out cleaning and maintenance, be sure to disconnect the power cord plug from the wall outlet. Wipe the cabinet with a soft, dry cloth. If the cabinet is particularly dirty, soak the cloth in water with a small amount of neutral detergent in it, squeeze the cloth very well, and then wipe the cabinet. After cleaning, wipe the cabinet dry with a dry cloth. If using a chemically-treated cloth, read the instructions supplied with the cloth before use. Do not wipe the lens with a cloth that is dusty or which produces lint. If any dust or lint gets onto the lens, such dust or lint will be magnified and projected onto the screen. Use a blower to clean any dust and lint from the lens surface, or use a soft cloth to wipe off any dust or lint. Cleaning and maintenance
#Loosen the screw by turning it anticlockwise. $Release the two hooks at the top of the cable cover. %Pull the cable cover to the rear to remove it from the projector. 62-ENGLISH Putting the power cord and remote control unit away #Put the remote control unit into the cable cover with the buttons facing downward to prevent them from being pressed. $Put the power cord and other cables into the cable cover. %Put the Velcro through the hole, and tape it to prevent the cables from dropping out. &Insert the hook 1 of the cable cover into the mounting holes in the projector. 'Push in the hook 2 until it locks into place. (Tighten the screw by turning it clockwise. Removing the cable cover Installing the cable cover # $ % Hook1 Hook2 Velcro Remote control unit (Infrared emitter) #% ˛ $ ˛ $ ˛ ' ˛ &˛ ( ˛ ' NOTE: Do not lift up the projector by holding the cable cover, otherwise the cable cover might come off. Using the cable cover
ENGLISH-63 Others Covering the connector panel When installing the projector to the ceiling, the accessory cable cover can be used to cover the connectors after removing the cut-away parts. 'Tighten the screw by turning it clockwise. $Work the cut-away parts back and forth several times to break the fixing tabs. Smooth off any jagged edges if necessary. #Use pliers or similar to break the perforated sections of the cut- away parts. %Pass the mains lead through cut- away part S, pass the other cables through cut-away part L, and then insert the hook1 of the cable cover into the mounting holes in the projector.&Push in the hook 2 until it locks into place. Perforated sections Hook2 Hook1 Fixing tabs Fixing tabsCut-away part S Screw Cut-away part L Refer to page 62 for details on removing the cable cover. NOTE: B Do not cover the air inlet ports when using the cable cover as stated above. BDo not place any heavy objects on the cable cover to prevent it from falling. BDo not bend the cables greatly, otherwise it will be difficult to attach the cable cover. BRemove the cable cover when cleaning or replacing the air filter.
64-ENGLISH Replacing the projection lens By replacing the projection lens with a lens that is sold separately, you can change the projection distance. #Turn the projection lens anticlockwise until it stops. $While pressing the lens release button, turn the projection lens anticlockwise again. %Remove the projection lens. #Insert the other projection lens (sold separately) as far as it will go, while matching the projection to the groove. $Turn the projection lens clockwise until a click is heard. Signal connection Projection Groove Removing the lens Installing the lens NOTE: BBe sure to turn off the power before replacing the projection lens. BDo not touch the signal connection. If any dust or lint gets onto the signal connection, the electrical contact may become poor. BDo not touch the surface of the lens with your bare hands. BStore the replaced projection lens away carefully to avoid subjecting it to excessive vibration or shock. BBe sure to adjust “LENS SELECT” in the “LENS” menu when replacing the projection lens. (page 50)
ENGLISH-65 Others Projection distance for each projection lens (sold separately) Projector position ET-LE10 (for short-distance projection) Screen size (4:3) Projection distance (L) Diagonal lengthHeight (SH)Width (SW)Wide (LW)Telephoto (LT) 1.01 m(40˝) 0.61 m(2´) 0.81 m(2´8˝) 1.1 m(3´7˝) 1.3 m(4´3˝) 1.27 m(50˝) 0.76 m(2´6˝) 1.02 m(3´4˝) 1.3 m(4´3˝) 1.7 m(5´6˝) 1.52 m(60˝) 0.91 m(3´) 1.22 m(4´) 1.6 m(5´2˝) 2.0 m(6´6˝) 1.77 m(70˝) 1.07 m(3´6˝) 1.42 m(4´8˝) 1.9 m(6´2˝) 2.4 m(7´10˝) 2.03 m(80˝) 1.22 m(4´) 1.63 m(5´4˝) 2.2 m(7´2˝) 2.7 m(8´10˝) 2.28 m(90˝) 1.37 m(4´6˝) 1.83 m(6´) 2.4 m(7´10˝) 3.1 m(10´2˝) 2.54 m(100˝) 1.52 m(5´) 2.03 m(6´8˝) 2.7 m(8´10˝) 3.5 m(11´5˝) 3.81 m(150˝) 2.29 m(7´6˝) 3.05 m(10´) 4.0 m(13´1˝) 5.3 m(17´4˝) 5.08 m(200˝) 3.05 m(10´) 4.06 m(13´4˝) 5.4 m(17´8˝) 7.0 m(22´11˝) 6.35 m(250˝) 3.81 m(12´6˝) 5.08 m(16´8˝) 6.7 m(21´11˝) 8.8 m(28´10˝) 7.62 m(300˝) 4.57 m(15´) 6.10 m(20´) 8.1 m(26´6˝) 10.6 m(34´9˝) L L SH SW 25 mm (-31/32˝) L: Projection distance SH: Image height SW: Image width Top edge of screen Screen Screen Bottom edge of screen
66-ENGLISH ET-LE20 (for medium-distance projection) Screen size (4:3) Projection distance (L) Diagonal lengthHeight (SH)Width (SW)Wide (LW)Telephoto (LT) 1.01 m(40˝) 0.61 m(2´) 0.81 m(2´8˝) 2.1 m(6´10˝) 3.3 m(10´9˝) 1.27 m(50˝) 0.76 m(2´6˝) 1.02 m(3´4˝) 2.7 m(8´10˝) 4.2 m(13´9˝) 1.52 m(60˝) 0.91 m(3´) 1.22 m(4´) 3.2 m(10´5˝) 5.0 m(16´4˝) 1.77 m(70˝) 1.07 m(3´6˝) 1.42 m(4´8˝) 3.8 m(12´5˝) 5.9 m(19´4˝) 2.03 m(80˝) 1.22 m(4´) 1.63 m(5´4˝) 4.3 m(14´1˝) 6.8 m(22´3˝) 2.28 m(90˝) 1.37 m(4´6˝) 1.83 m(6´) 4.9 m(16´) 7.7 m(25´3˝) 2.54 m(100˝) 1.52 m(5´) 2.03 m(6´8˝) 5.4 m(17´8˝) 8.5 m(27´10˝) 3.81 m(150˝) 2.29 m(7´6˝) 3.05 m(10´) 8.2 m(26´10˝) 12.9 m(42´3˝) 5.08 m(200˝) 3.05 m(10´) 4.06 m(13´4˝) 11.0 m(36´10˝) 17.2 m(56´5˝) 6.35 m(250˝) 3.81 m(12´6˝) 5.08 m(16´8˝) 13.8 m(45´3˝) 21.6 m(70´10˝) 7.62 m(300˝) 4.57 m(15´) 6.10 m(20´) 16.5 m(54´1˝) 26.0 m(85´3˝) ET-LE30 (for long-distance projection) Screen size (4:3) Projection distance (L) Diagonal lengthHeight (SH)Width (SW)Wide (LW)Telephoto (LT) 1.01 m(40˝) 0.61 m(2´) 0.81 m(2´8˝) 3.4 m(11´1˝) 4.2 m(13´9˝)4.6 m(15´1˝) 1.27 m(50˝) 0.76 m(2´6˝) 1.02 m(3´4˝) 5.8 m(19´) 1.52 m(60˝) 0.91 m(3´) 1.22 m(4´) 5.0 m(16´4˝) 6.9 m(22´7˝) 1.77 m(70˝) 1.07 m(3´6˝) 1.42 m(4´8˝) 5.8 m(19´) 8.1 m(26´6˝) 2.03 m(80˝) 1.22 m(4´) 1.63 m(5´4˝) 6.6 m(21´7˝) 9.2 m(30´2˝) 2.28 m(90˝) 1.37 m(4´6˝) 1.83 m(6´) 7.4 m(24´3˝) 10.4 m(34´1˝) 2.54 m(100˝) 1.52 m(5´) 2.03 m(6´8˝) 8.2 m(26´10˝) 11.5 m(37´8˝) 3.81 m(150˝) 2.29 m(7´6˝) 3.05 m(10´) 12.2 m(40´) 17.3 m(56´9˝) 5.08 m(200˝) 3.05 m(10´) 4.06 m(13´4˝) 16.3 m(53´5˝) 23.0 m(75´5˝) 6.35 m(250˝) 3.81 m(12´6˝) 5.08 m(16´8˝) 20.4 m(66´11˝) 28.7 m(94´1˝) 7.62 m(300˝) 4.57 m(15´) 6.10 m(20´) 24.4 m(80´) 34.5 m(113´2˝)
ENGLISH-67 Others Setting-up dimensions which are not given in the table can be calculated using the formulas below. SD (m): Screen size (diagonal) LW: Projection distance for the wide lens position LT: Projection distance for the telephoto lens position Model No. of projection lens Aspect ratioMethods of calculation of Projection distance (L) Unit: mm Zoom lens ET-LE10 (1.3 -1.7:1)4:3 LW = 0.027xSD/0.0254-0.0523 LT = 0.0355xSD/0.0254-0.0509 16:9LW = 0.0294xSD/0.254-0.0523 LT = 0.0387xSD/0.0254-0.0509 ET-LE20 (2.6-4.2:1)4:3 LW = 0.0554xSD/0.0254-0.134 LT = 0.0871xSD/0.0254-0.136 16:9LW = 0.0604xSD/0.254-0.134 LT = 0.0949xSD/0.254-0.136 ET-LE30 (4.0-5.6:1)4:3 LW = 0.0809xSD/0.0254+0.104 LT = 0.1147xSD/0.0254+0.096 16:9LW = 0.0881xSD/0.0254+0.104 LT = 0.1250xSD /0.0254+0.096
68-ENGLISH Specifications Power supply: 100 V - 240 V ~, 50 Hz/60 Hz Power consumption: 380 W [During standby (when fan is stopped): approx. 11 W, during “WEB STANDBY” mode: approx. 40W] Amps: 4.5 A - 2.0 A LCD panel: Panel size (diagonal): 1.0 type (25.4 mm) Aspect ratio: 4:3 Micro lens array: Available Display method: 3 transparent LCD panels (RGB) Drive method: Active matrix method Pixels: 786 432 (1 024 x 768) x 3 panels Lens: Electronic zoom (1 - 1.2) / focus F 1.7 - 2.1 f 40.7 mm - 52.8 mm Lamp: UHM lamp (270 W) Luminosity: 3 200 lm Scanning frequency (for RGB signals): Horizontal scanning frequency: 15 kHz - 91 kHz Vertical scanning frequency: 50 Hz - 87 Hz Dot clock frequency: Less than 108 MHz YPBPRsignals: 480i, 576i, 480p, 576p, 1 080/60i, 1 080/50i, 720/60p Color system: 7 (NTSC/NTSC 4.43/PAL/PAL-M/PAL-N/ PAL60/SECAM) Projection size: 1 016 mm - 7 620 mm (40˝ - 300˝) Throw distance: 1.6 m - 16.0 m (5´2˝ - 52´5˝) Optical axis shift: 10:0 (fixed) Screen aspect ratio: 4:3 Installation: Front/Rear/Ceiling/Desk (menu selection) Speaker: 4 cm x 3 cm oval x 2 Max. useable volume output: 2 W (stereo) Connectors DVI-D IN: Single-line, DVI-D 24 pin RGB IN/OUT: Dual-line, D-sub HD 15-pin (female) [One line is available for input and output, selectable using an on-screen menu] Single-line, BNCx5 During YP BPRinput/output: Y: 1.0 V [p-p] (Including sync), 75 Ω P B, PR: 0.7 V [p-p], 75 Ω During RGB input/output: R.G.B.: 0.7 V [p-p], 75 Ω G.SYNC: 1.0 V [p-p], 75 Ω
ENGLISH-69 Others HD/SYNC: TTL, automatic positive/negative polarity compatible VD: TTL, automatic positive/negative polarity compatible RGB AUDIO IN: Single-line, 0.5 V [rms] M3 jack (Stereo MINI) VIDEO IN: Single-line, RCA pin jack 1.0 V [p-p], 75 Ω S-VIDEO IN: Single-line, Mini DIN 4-pin Y 1.0 V [p-p], C 0.286 V [p-p], 75 Ω AUDIO IN (for S-VIDEO/VIDEO): Single-line, 0.5 V [rms] RCA pin jack x 2 (L-R) AUDIO OUT:Single-line, 0.5 V [rms] M3 jack (Stereo MINI) (Monitor output /stereo compatible) 0 V [rms] - 1.0 V [rms] (variable) SERIAL: D-sub 9-pin for external control (RS-232C) REMOTE: D-sub 9-pin for external control Wired LAN: RJ-45 x 1, 10Base-T/100Base-TX for network connection Cabinet: Moulded plastic (PC/ABS) Dimensions: Width: 290 mm (11-13/32˝) Height: 137 mm (5-3/8˝) Length: 406 mm (15-31/32˝) (without lens cover) Weight: 5.8 kg(12.8 lbs.) Operating environment: Temperature: 0 °C - 40 °C (32 °F - 104 °F) [When the “FAN CONTROL” is set to “HIGH” (page 48): 0 °C - 35 °C (32 °F - 95 °F)] Humidity: 20% - 80% (no condensation) Certifications: UL60950, C-UL FCC Class B Power supply: 3 V DC (AAA battery x2) Operating range: Approx. 7 m (23´) (when operated directly in front of signal receptor) Weight: 95 g(3.4 ozs.) (including batteries) Dimensions: Width: 45 mm (1-3/4˝) Length: 145 mm (5-11/16˝) Height: 23 mm (-7/8˝) Ceiling mount bracket ET-PK780 Ceiling mount bracket (for low ceilings) ET-PK780S Wireless mouse receiver ET-RMRC2 Projection lens ET-LE10 (for a short-distance projection) ET-LE20 (for a medium-distance projection) ET-LE30 (for a long-distance projection)
70-ENGLISH Appendix *1 The “i” appearing after the resolution indicates an interlaced signal. *2 The following symbols are used to indicate picture quality. AA Maximum picture quality can be obtained. A Signals are converted by the image processing circuit before picture is projected. B Some loss of data occurs to make projection easier. *3 Signals with “OK” in the “Resizing” column can be set using the “RESIZING” command in the “POSITION” menu. (page 45) *4 Signals that are compatible with the “FRAME LOCK” function. (page 45) List of compatible signals 720 x 480i 15.7 59.9 A OKVideo/S-Video 720 x 576i 15.6 50.0 A OKVideo/S-Video720 x 480i 15.7 59.9 13.5 A OKYPBPR/RGB720 x 576i 15.6 50.0 13.5 A OKYPBPR/RGB720 x 483 31.5 59.9 27.0 A OKYPBPR/RGB720 x 576 31.3 50.0 27.0 A OKYPBPR/RGB1 920 x 1 080i33.8 60.0 74.3 AYPBPR/RGB1 920 x 1 080i28.1 50.0 74.3 AYPBPR/RGB1 280 x 72045.0 60.0 74.3 AYPBPR/RGB640 x 400 31.5 70.1 25.2 A OK RGB640 x 400 37.9 85.1 31.5 A OK RGB640 x 480 31.5 59.9 25.2 A OK RGB/DVI640 x 480 35.0 66.7 30.2 A OK RGB640 x 480 37.9 72.8 31.5 A OK RGB640 x 480 37.5 75.0 31.5 A OK RGB640 x 480 43.3 85.0 36.0 A OK RGB800 x 600 35.2 56.3 36.0 A OK RGB800 x 600 37.9 60.3 40.0 A OK RGB/DVI800 x 600 48.1 72.2 50.0 A OK RGB800 x 600 46.9 75.0 49.5 A OK RGB800 x 600 53.7 85.1 56.3 A OK RGB832 x 624 49.7 74.6 57.3 A OK RGB1 024 x 76848.4 60.0 65.0 AA RGB/DVI1 024 x 76856.5 70.1 75.0 AA RGB1 024 x 76860.0 75.0 78.8 AA RGB1 024 x 76868.7 85.0 94.5 AA RGB1 024 x 768i35.5 87.0 44.9 AA RGB1 152 x 86464.0 71.2 94.2 A RGB1 152 x 86467.5 74.9 108.0 A RGB1 152 x 86476.7 85.0 121.5 B RGB1 152 x 87068.7 75.1 100.0 A RGB1 280 x 96060.0 60.0 108.0 A RGB/DVI1 280 x 1 02464.0 60.0 108.0 A RGB/DVI1 280 x 1 02480.0 75.0 135.0 B RGB1 280 x 1 02491.1 85.0 157.5 B RGB1 400 x 1 05064.0 60.0 108.0 A RGB1 600 x 1 20075.0 60.0 162.0 B RGB Display resolution (dots)* 1 Scanning frequency H (kHz)V (Hz) Dot clock frequency (MHz)Picture quality *2Resizing*3 NTSC/NTSC4.43/PAL-M/PAL60PAL/PAL-N/SECAM480i576i480p576p1 080/60i1 080/50i720/60p VGA400 VGA480 SVGA MAC16 XGA MXGA MAC21MSXGA SXGA UXGA Format Mode *4 *4 *4 *4 *4 *4 *4