LWU720i LHD720i SERVICE MANUAL LWU620i Warning The technical information and parts shown in this manual are not to be used for: the development, design, production, storage or use of nuclear, chemical, biological or missile weapons or other weapons of mass destruction; or military purposes; or purposes that endanger global safety and peace.
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LWU720i / LHD720i / LWU620i CAUTION FOR SAFETY Entries with graphical symbol explanation WARNING CAUTION Typical graphical symbols explanation This symbol indicates This symbol indicates This symbol indicates warnings and cautions. hazard of high voltage. mandatory actions. This symbol indicates This symbol indicates This symbol indicates hazard of explosion.
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LWU720i / LHD720i / LWU620i 1. Features Not only can you control and monitor the projectors via LAN connection, but also project still or wireless adapter. alternately by themselves, and once one projector has an accident the other voluntarily starts to >...
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LWU720i / LHD720i / LWU620i Drive system TFT active matrix LWU620i/LWU720i: 1.9cm (0.76" type) Liquid crystal Panel size LHD720i: 1.9cm (0.74" type) panel LWU620i/LWU720i: 1920(H) x 1200(V) Number of pixels LHD720i: 1920(H) x 1080(V) LWU620i: 370W UHP Lamp LWU720i/LHD720i: 430W UHP Type: T.M.D.S HDMI Signal level: DC 3.3V±5%, AC 0.15-1.56Vp-p...
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LWU720i / LHD720i / LWU620i Projector Control panel and Indicators (9) (10) (11) (12) (13) (14) (1) Lamp cover (1) STANDBY/ON button (2) INPUT button The lamp unit is inside. (3) MENU button (2) Speakers (x2) (4) LENS SHIFT button (3) Filter cover (5) ZOOM button (6) FOCUS - / + buttons...
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LWU720i / LHD720i / LWU620i 4-1 Before adjusting 4-1-1 Selection of adjustment When any parts in the table below are changed, choose the proper adjusting items with the chart. In addition, setup of the projector according to the chapter 4-8 by service engineers or users is recommended after all adjustments are done.
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LWU720i / LHD720i / LWU620i 4-2 AIR SENSOR adjustment When you replaced the MAIN PCB, SENSOR-A/ Adjustment procedure B PCB, PANEL FAN or BOTTOM CASE, or 1. Display the A-SENS bar with the when you re-attached the PANEL DUCT to the buttons in FACTORY MENU - VID-AD1.
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LWU720i / LHD720i / LWU620i 4-5 White balance adjustment (visual inspection) Test patterns for the adjustment Adjustment procedure 1. Select GAMMA in the FACTORY MENU and press the RESET button to display the dialog. Select Each color 33-tone grayscale RESET to reset gamma correction. (255/255) (W/G) 2.
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LWU720i / LHD720i / LWU620i 4-6 Color uniformity adjustment Test patterns for the adjustment Preparations 1. Display the Adjust tone menu in FACTORY MENU - C.UNIF.. Next on the right of "C.UNIF.", 2nd cell from the Each color left shows tone to be adjusted. Use the (each tone) button to switch the tone.
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LWU720i / LHD720i / LWU620i Adjustment procedure 1 (When a color differential meter is used) 10. Next, adjust the other tones in order of -MIN-, 1. First adjust the -MID-1- tone, from G color. -MID-3-, -MID-2-, -MID-5-, -MID-4-, -MAX- and 2.
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LWU720i / LHD720i / LWU620i Adjustment procedure 2 (visual inspection) Adjustment technique: First, adjust B color of 1. First adjust G color of the -MIN- tone. the point whose color is to be adjusted so that it 2. Select G of point No.2 and change the approximates that of point No.1.
LWU720i / LHD720i / LWU620i 4-7 LENS SHIFT adjustment When you replaced the LCD Prism Shift mech. Adjustment procedure 1. Display the LENS_C bar with the assembly or MAIN PCB, make sure to carry buttons in FACTORY MENU - OPTION. (Example out this adjustment after re-assembling the projector.
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LWU720i / LHD720i / LWU620i 4-8 Ghost adjustment Test pattern for the adjustment 0/255 112/255 NOTICE Adjustment procedure Set the GHOST R, G, B in OPTION-SERVICE-GHOST Menu to 0. 2. Use DAC-P - GHOST - R: in the FACTORY MENU to optimize the setting. (a) Highlight the cell R of the GHOST bar, and then press the RESET button to initialize.
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LWU720i / LHD720i / LWU620i 4-9 Setup of the projector The following contents are also described in User's manual. ZOOM / FOCUS 1. The ZOOM or FOCUS dialog will appear when you press any of the buttons from ZOOM, ZOOM -, ZOOM +, FOCUS + and FOCUS -.
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LWU720i / LHD720i / LWU620i Power cannot turn on. *: Be sure to unplug the power cord before measuring resistance. voltage Measure Replace MAIN PCB. supplied at pins (5) and resistance* between (7) of E800 on the MAIN pins (5) and (7) of Replace POWER UNIT CIRCUIT.
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LWU720i / LHD720i / LWU620i Lamp does not light. *: Be sure to unplug the power cord before measuring resistance. Is the LAMP indicator (DY03) lighting? Re-install LAMP the LAMP UNIT is installed UNIT. correctly. What is the state of TEMP indicator (DY04)? Lighting the voltage...
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LWU720i / LHD720i / LWU620i No/Irregular screen is displayed. Replace the FPC connector, the LCD panels P501: R, P601: G, P701: B. connection to MAIN PCB. Replace MAIN PCB. Replace LCD Prism Shift mech.assembly. Picture is not displayed correctly via COMPUTER IN port. Turn on PbyP or PinP and select...
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LWU720i / LHD720i / LWU620i Picture is not displayed correctly via wired/wireless* LAN. *: The USB wireless adapter is needed to use wireless LAN. communicate via wireless or total PC connection number to projector within Is total projector connection Re-connect after disconnecting other projectors. number to a PC within Troubleshooting for other Network problems Update the LiveViewer to the latest version.
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LWU720i / LHD720i / LWU620i Picture is not displayed correctly via VIDEO port. whether changing INPUT PCB can Replace MAIN PCB. Replace INPUT PCB. Signal from MONITOR OUT port is not displayed correctly. the projector display picture correctly via COMPUTER IN port? Replace IC02: EL8302IUZ, Replace IC02: THS7327PHPR.
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LWU720i / LHD720i / LWU620i Focus or zoom adjustment cannot be operated. *: Be sure to unplug the power cord before measuring resistance. any dust or distortion in the BtoB Clean the connectors with air duster. connectors on the ADAPTER PCB and LENS Replace the LENS ADAPTER PCB.
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LWU720i / LHD720i / LWU620i Cannot communicate via RS-232C. Is STANDBY Are pins (2) MODE set to “POWER and (3) of the RS-232C Use cross cable. SAVE”? cable crossed? Set STANDBY MODE as Are the “NORMAL” in the SETUP menu. signals on each pin of the cable? (2): RX...
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LWU720i / LHD720i / LWU620i Does the Is the Set the STANDBY MODE LED on lower right of STANDBY MODE setting as “NORMAL” in the SETUP the LAN port light in “NORMAL”? menu. green? Is the PC connected with the projector directly? Are there any damage to the LAN...
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LWU720i / LHD720i / LWU620i Is the USB wireless adapter connected Re-connect the USB wireless adapter properly. properly? Wait more than 1 minute after the adapter is connected. Is LED on Does MAC address PC-less Presentation Replace MAIN PCB be read from WIRELESS INFORMATION? port? Try replacing the USB wireless adapter.
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LWU720i / LHD720i / LWU620i Problem The projector is not turned on. Is the projector’s lamp on? Is the proper input channel is selected? No image The projector’s input source isn’t LAN: PC screen display via wired/wireless switched properly. sure no "ring" or "loop" connection is made occurred.
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LWU720i / LHD720i / LWU620i Troubleshooting for other Network problems (continued) Problem Can't Install Windows Vista without any Service "LiveViewer" The projector isn’t capable of Switching the priority to ‘Transmission relaying dynamic images such as Speed’ under the options menu may The projected image is ®...
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LWU720i / LHD720i / LWU620i 6-1 Lead free solder [CAUTION] This product uses lead free solder (unleaded) to help preserve the environment. Please read these CAUTION Always wear safety glasses to prevent fumes or molten solder from getting into the eyes. Lead Lead free solder indicator Printed circuit boards using lead free solder are engraved with an "F"...
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LWU720i / LHD720i / LWU620i 6-2 Articles necessary to your maintenance and repair works In this projector, adhesive tapes and cable ties are used for the purpose of fastening and tying the wires. Once you remove the tapes or unfasten the cable ties, you may not reuse them. We recommend you to prepare such articles, in advance.
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LWU720i / LHD720i / LWU620i 1. Preparation Please prepare cleaning tools and materials as follows. And prepare relatively clean room not to 2. Disassembling and setting up 1) Turn off the projector and unplug the power cord. Wait at least 45 minutes for cooling down. 2) Remove the FRONT COVER, LENS and UPPER CASE in accordance with the instructions for the chapter 4) Remove the OPTICAL UNIT from the projector, and separate the LCD Prism Shift mech.
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LWU720i / LHD720i / LWU620i Cleaning the exit-side (prism-side) of LCD panel Cross section of LCD/prism Insert a swab between the LCD panel and the Swab with special care. LCD panel Light Prism Never touch or wipe the LCD panel the R, B, and G light paths.
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LWU720i / LHD720i / LWU620i 6-5 Installing the Batteries WARNING Always handle the batteries with care and use them only as directed. Improper use may result surrounding environment. time. Do not mix a new battery with used one. adheres to your body or clothes, rinse well with water immediately. Insert the batteries into the remote control before using it.
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LWU720i / LHD720i / LWU620i 1. Turn the projector off, and unplug the power cord. Allow the projec- Filter cover Filter cover Extra 7. Use a vacuum cleaner to clean the inner side of each part of the 4, 5 Filter unit soiled, replace them with the new ones.
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LWU720i / LHD720i / LWU620i 6-7 Lamp Lamp warning WARNING HIGH VOLTAGE HIGH TEMPERATURE HIGH PRESSURE burn out, if jolted or scratched, handled while hot, or worn over time. Note that each lamp has a different lifetime, and some may burst or burn out soon after you start using them. In addition, if the bulb bursts, it is possible for shards of glass to fly into the lamp housing, and for gas holes.
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LWU720i / LHD720i / LWU620i Replacing the LAMP UNIT soon after you start using them. New lamp preparation and early replacement are recommended. Lamp cover 1. Turn the projector off, and unplug the power cord. Allow the projector to cool for at least 45 minutes. 2.
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LWU720i / LHD720i / LWU620i 6-8 Other care WARNING malfunction to the projector. CAUTION Inside of the projector In order to ensure the safe use of the projector, it needs to clean and inspect the projector about once a year. Caring for the lens care of the lens, being cautions of the handling.
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LWU720i / LHD720i / LWU620i 6-9 Notice of AUTO adjustment Use of AUTO adjustment with the image through analog RGB input optimizes V_POSI, H_POSI, and H_PHASE automatically. artifacts in the image, shifts capture area and so on. Those failures are caused by period of image To avoid such phenomena, AUTO function should be used with the full size picture that has bright tone on its peripheral.
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LWU720i / LHD720i / LWU620i 6-10 How to inactivate the security functions This projector is equipped with security functions as below. (1) My Screen PASSWORD The My Screen PASSWORD function can be used to prohibit access to the My Screen function and prevent the currently registered My Screen image from being overwritten.
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Inquiring Code PIN BOX (ID Inquiring Code) 2. Send CHRISTIE servicing provider the Inquiring code (10 digits) to inquire the correct PIN code. 3. While the PIN BOX is displayed, enter the correct PIN Code that CHRISTIE servicing provider informed.
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LWU720i / LHD720i / LWU620i 6-12 Related Messages these messages automatically disappear after several minutes, they reappear when the power is turned on. Message Description There is no input signal. signal source. disconnected. Re-connect them. The horizontal or vertical frequency of the input signal is specs.
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LWU720i / LHD720i / LWU620i 6-13 Regarding the indicator lamps The indicators are described as below. Steady light Status Monitor Indicator Status Description Current Status The projector is in a standby state. The projector is warming up. Wait for the projector to warm up. The projector is in an on state.
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LWU720i / LHD720i / LWU620i Replacement Parts List Fan number table for error Symbol PARTS No. DESCRIPTION Cushion* Fan for cooling LCD DC FAN MU06871 Fan1 EXHAUST FAN 1 GS02301 panels/Lamp (Exhaust) 9GA09P-PWM-Z4L171 (8pcs) Fan for cooling Red LCD DC FAN MS03172, Fan2 R PANEL FAN GS02581...
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LWU720i / LHD720i / LWU620i Status Monitor Indicator Status Description Current Status The lamp does not light, and there is a possibility that interior portion has become heated. Otherwise, AC power supply is unstable (ACBLK). Turn the power off, and allow the projector to cool down at least 20 minutes.
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LWU720i / LHD720i / LWU620i Status Monitor Indicator Status Description Current Status dirty. AIRFLOW See the section "There is a possibility that the interior portion has become heated". PIN LOCK function is active. Please refer to the section How to inactivate the security functions and PIN LOCK System, or the chapter SECURITY menu in the User's Manual.
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LWU720i / LHD720i / LWU620i 6-14 HIDDEN SERVICE MENU With the control panel With the remote control 1. Press the MENU button to 1. Press the MENU button to display the ADVANCED MENU. display the ADVANCED MENU. (If EASY MENU appears, (If EASY MENU appears, choose ADVANCED MENU.) choose ADVANCED MENU.)
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LWU720i / LHD720i / LWU620i ANALOG EDID ON : Enables EDID of COMPUTER IN OFF : Disables EDID of COMPUTER IN BASIC FREQ. Switches the basic vertical frequency for the output image of this projector. 50Hz 60Hz (NTSC region) SERIAL # CLEAR the serial # again once you do this operation.
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LWU720i / LHD720i / LWU620i 6-16 DIGITAL CONVERGENCE adjustment Preparation 1. Open the ADVANCED MENU and select OPTION SERVICE or the ENTER button to display the SERVICE_GHOST box. CONVERGENCE box will appear. Keypad Remote control Press the MAGNIFY OFF button, and then hold the MAGNIFY OFF button for about 3 seconds. 3.
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LWU720i / LHD720i / LWU620i 6-17 Reset of the Network Web password / User ID, Network Control password ATTENTION 1. Display the WIRED SETUP in the NETWORK menu. 2. Select “OFF” in the item of DHCP. 3. Enter “255.255.255.255” in the item of IP ADDRESS.
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LWU720i / LHD720i / LWU620i 6-18 Status Monitor The Status Monitor is the sub LCD in the rear panel. The Status Monitor Status Monitor displays the present condition of the projector including errors, setup infor- mation and error history. NOTE: monitor are available while the projector is in standby mode if the STAND- BY MODE item of SETUP menu is set to POWER SAVE.
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LWU720i / LHD720i / LWU620i In error state The Status Monitor displays a warning of an error with larger letters. Resolve the errors referring to the table of the sections "Related messages" and "Re- garding the indicator lamps" when the warning is displayed. Warnings;...
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LWU720i / LHD720i / LWU620i Usage time: Lamp hours L A M P 2 2 5 0 h Filter hours F I L T E R 1 2 8 3 5 h the projector usage time. Projector S Y S T E M 2 2 3 8 6 h usage time Usage time (example) page is as below;...
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LWU720i / LHD720i / LWU620i 30 32 OPTICAL UNIT (Continued on next page) LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i Remove INTAKE HOUSE / TSW / INTAKE DUCT COVER / IR LENS / AC INLET / POWER SUPPLY BOX / INTAKE DUCT / LAMP HOUSE POWER SUPPLY BOX 21 (+ 15 x8pcs.) / LAMP FAN2 DUCT / LAMP DOOR SW PCB. (+ 13,14) (+ 13,14) (+ 13,14)
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LWU720i / LHD720i / LWU620i PRODUCT SAFETY NOTE: have special characteristics important to safety. Don’t degrade the safety of the projector through improper servicing. LWU720i LWU620i LHD720i Symbol Part No. Description Part Picture 121-046101-01 121-051107-01 121-045100-01 121-048103-01 121-049104-01 121-050106-01 121-047102-01 121-052108-01 003-005596-01 Case Upper White...
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LWU720i / LHD720i / LWU620i LWU720i LWU620i LHD720i Symbol Part No. Description Part Picture 121-046101-01 121-051107-01 121-045100-01 121-048103-01 121-049104-01 121-050106-01 121-047102-01 121-052108-01 Cover Front Bottom White 003-005602-01 (FRONT COVER BOTTOM ASS'Y (QD79421) Cover Front Bottom 003-005396-01 (FRONT COVER BOTTOM ASS'Y (QD79422) 003-005615-01 Cover USB White...
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LWU720i / LHD720i / LWU620i LWU720i LWU620i LHD720i Symbol Part No. Description Part Picture 121-046101-01 121-051107-01 121-045100-01 121-048103-01 121-049104-01 121-050106-01 121-047102-01 121-052108-01 003-005402-01 LCD Lens Prism (UX42721) (LCD/LENS PRISM ASS’Y D2B) 003-006397-01 (UX42727) (LCD/LENS PRISM ASS'Y D2B HD) 003-005405-01 Dichroic Optics Unit (UX40911) (DICHROIC OPTICS UNIT D2WU70) 003-005475-01...
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LWU720i / LHD720i / LWU620i _______________________________________________________________________ CAUTION assembling. Pay attention not to damage the wires or any other fragile parts of the projector. FRONT COVER (FRONT COVER ASS’Y) / LENS (LENS ASS’Y) CAUTION impact. Use an air duster (dust blower) when cleaning them to avoid rust and dust. Disassembling 1.
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LWU720i / LHD720i / LWU620i Replacement of LENS and LENS ADAPTER PCB LENS ADAPTER PCB ATTENTION 2 screws 0.15~0.20 N·m) LENS ADAPTER PCB are not bent before attaching the (LPA side) LENS to the projector. The LENS ADAPTER PCB is attached to the entry side of the LENS.
LWU720i / LHD720i / LWU620i 3. Installing the lens (1) Remove the lens cap. Then turn the product label of the lens upward and install the lens in the projector. Caution Lens cap (rear) lens cap on may lead to malfunction. projector when attaching the lens as this Product label...
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LWU720i / LHD720i / LWU620i Lens Installation Procedure (continued) Lens Installation Procedure (continued) 4. Install the lens <Tilt correction function> (1) Remove both the protection sheet pasted to the projection window and the The balance of focus at the peripheral part of the projected image changes when lens cap.
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LWU720i / LHD720i / LWU620i 4. Attaching the front cover Insert the front cover into the projector body Front cover (lower part) Front cover (upper part) LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i UPPER CASE (UPPER CASE ASS’Y) Disassembling Loosen and remove 22 screws on the bottom, and then lift the UPPER CASE upwards to detach it. Assembling Put the UPPER CASE to the projector, and turn it over. Tighten 22 screws on the bottom in numerical order shown in the drawing.
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LWU720i / LHD720i / LWU620i LED PCB (PWB ASS’Y LED) Replacement of LED PCB Release LED PCB by pressing down on the two tabs that are securing the PCB. Then, disconnect CNLED harness from LED PCB. avoiding overlap with LEDs Refer to the chapter for the details of the LED CUSHION D1.
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LWU720i / LHD720i / LWU620i MAIN PCB block (MAIN / INPUT / W.REMOTE PCB, I/O METAL, I/O PANEL) Disassembling 1) Disconnect 34 connectors on the MAIN PCB. 2) Remove the screw which secures the earth cable CNGD6. 3) Remove 6 screws on the MAIN PCB. EM04 E801 EM02...
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LWU720i / LHD720i / LWU620i Assembling 2) Tighten 6 screws on the MAIN PCB and insulation sheet in numeric order shown in the drawing. 3) Screw down the earth cable CNGD6. 5) Add the ferrite core. , 0.69~0.88N·m) Tighten jointly with the shading sheet.
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LWU720i / LHD720i / LWU620i Main PCB Disassembling 1) Disconnect four connectors on the INPUT PCB. 2) Remove four (for LWU720i/LHD720i) or three (for LWU620i) screws on I/O METAL. Only for LWU7 3 3 o o r r 4 screw 4 screws s ( ( M M 3x8, b 3x8, bl l ack, ack, 0.49...
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LWU720i / LHD720i / LWU620i INPUT PCB Disassembling 1) Disconnect 4 connectors on the INPUT PCB. 2) Remove two screws on INPUT PCB to separate the insulating sheet. 3) Remove a screw and six hexagonal screws for D-sub connectors from the I/O METAL. ·m) Insulating sheet 2 screws (M3x8, silver, 0.49±0.1N·m)
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LWU720i / LHD720i / LWU620i KEYPAD PCB block (REMOTE-R / KEYPAD PCB, CONTROL BUTTON, STATUS MONITOR) KEYPAD PCB (PWB ASS’Y KEYPAD) Disassembling 1) Remove three screws to separate the KEYPAD PCB from the CONTROL BUTTON. 3) Remove 2 screws. Assembling 2) Tighten 2 screws.
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LWU720i / LHD720i / LWU620i STATUS MONITOR Disassembling Assembling 1) Attach the STATUS MONITOR to the 2) Flip the stopper of ER50 (FPC connector) 2) Turn the stopper of ER50 of the REMOTE-R of the REMOTE-R PCB to release the FPC PCB to fasten the FPC.
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LWU720i / LHD720i / LWU620i POWER SUPPLY BOX and peripherals CAUTION NOTE: Disassembling 1) Remove a screw to remove lamp door. 2) Remove 3 screws to remove lamp. 3) Remove 11 screws. Silver M3x8, 0.39~0.59N m Lamp connector Screw in Screw in right center hand side...
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LWU720i / LHD720i / LWU620i Assembling 1) Set AC INLET to the bottom case in the direction as the rib for sure. Do not pinch the harness. POWER UNIT ASSY straight. 3) Insert temperature sensor (TSW). NOTE: [ LWU620i ] Pay attention to the direction wide narrow...
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LWU720i / LHD720i / LWU620i POWER UNIT Disassembling 2) Disconnect 5 connectors to divide POWER UNIT and AC INLET. 1 screw 3 screws Assembling 1) Connect 5 connectors to POWER UNIT. Wiring Refer to page 54 and 55 for wiring. LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i BALLAST UNIT and AC WATCH BALLAST UNIT Disassembling 3) Disconnect 3 connectors. 2) Remove one more screw while the sheet is AC WATCH PCB AC WATCH Disassembling 1) Remove 2 screws. 4) Remove 3 harnesses 2) Disconnect 2 from rib.
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LWU720i / LHD720i / LWU620i 2. Attach the POWER UNIT BALLAST and AC WATCH PCB. 1) Turn over the BALLAST SHEET, and then slide the BALLAST unit to insert its two corners into the slits of the BALLAST HOLDER. 2) Turn the BALLAST unit and insert another corner of it into the slit of the BALLAST HOLDER. 3) Close the BALLAST SHEET to set in place, and screw it down with the BALLAST unit.
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LWU720i / LHD720i / LWU620i OPTICAL UNIT and peripherals CAUTION worse. Disassembling Assembling Torque driver required 1) Place the OPTICAL UNIT to the projector ATTENTION in numeric order shown in the drawing. Tightening Be sure to remove the LAMP UNIT prior to the OPTICAL UNIT.
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LWU720i / LHD720i / LWU620i LCD Prism Shift mech. assembly (LCD/PRISM ASS’Y), DICHROIC OPTICS UNIT CAUTION Disassembling Assembling 1) Remove three screws illustrated in the 1) Set the DICHROIC OPTICS UNIT onto the drawing. LCD Prism Shift mech. assembly. 2) Hold the DICHROIC OPTICS UNIT, and 2) Fasten the OPTICAL UNIT with 3 screws in move it up to separate from the LCD Prism numerical order shown in the drawing below.
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LWU720i / LHD720i / LWU620i Replacement of LCD Prism Shift mech. assembly (LCD/PRISM ASS’Y) Remove the following parts from the LCD Prism Shift mech. assembly before replacement, and re-use them with the replaced one. 1) 2 cable fasteners and 2 screws LCD Prism Shift mech.
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LWU720i / LHD720i / LWU620i EXHAUST FAN1, EXHAUST FAN2, POWER FAN Each fan is installed in the BOTTOM CASE as shown in the drawing below. Be aware of facing of the labeled side (air flow exit side) and direction of drawing out cable. The arrows in the drawing shows the directions of air flow.
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LWU720i / LHD720i / LWU620i Replacement of EXHAUST FAN 1 (DC FAN 9GA09P-PWM-Z4L171) Replacing the EXHAUST FAN1 1) Release the harness from the clips. 2) Release the fan harness from the ferrite core. 3) Remove the five screws securing the lamp exhaust duct. 5) Remove the fan.
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LWU720i / LHD720i / LWU620i Replacing the EXHAUST FAN2 (DC FAN T92T13PWM-Z4-L191) 4) To reinstall the fan, perform the above steps in reverse. 3) EXHAUST FAN2 2) EXHAUST FAN2 flange exhaust side A Replacing the intake POWER FAN (DC FAN T92T13PWM-Z4-L191) 4) Remove the fan assembly.
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LWU720i / LHD720i / LWU620i LAMP FAN 1 (DC FAN CY6023RPWM-G4L252) Disassembling Assembling 1) Release harness from LMP INTAKE DUCT. To reinstall, perform disassembling process in reverse. 2) Remove 2 screws to remove LAMP FAN 1. Wiring Refer to page 69 for wiring. REMC-Front PCB (PWB Assy FRONT-RC) and LED PWB Disassembling Assembling...
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LWU720i / LHD720i / LWU620i SIDE GUARDS, SPEAKERS and BATTERY PWB Disassembling Assembling 1) Remove 2 screws to remove SIDE GUARD L. To reinstall, perform above steps in reverse. 2) Remove 3 screws to remove SIDE GUARD R. 3) Remove 2 screws and stoppers to pull out Wiring Refer to (5) in page 63 and (5)-1/(5)-2 in page 4) Remove 2 screws and stoppers to pull out...
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LWU720i / LHD720i / LWU620i LMP EXT DUCT, LAMP HOUSE and LAMP FAN 2 (DC FAN CY6023LPWM-Z5L221) Disassembling Assembling 1) Remove 1 screw to remove LMP INTAKE DUCT. To reinstall, perform above steps in reverse. 3) Remove 3 screws to remove RC-LED HOLDER. 4) Remove 3 screws to remove LMP FAN HOLDER 5) Remove 2 screws to remove LMP EXT DUCT.
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LWU720i / LHD720i / LWU620i PANEL DUCT block Disassembling Assembling 1) Remove seven screws illustrated in the 1) Set the PANEL FAN and SENSOR-A/B PCBs. from the BOTTOM CASE. 2) Close and fasten the PANEL DUCT with its clips, then screw it up. PCB.
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LWU720i / LHD720i / LWU620i Replacement of PANEL FAN (DC FAN CY8028LPWM-Z4-L341) & Sensor A/B PCB When you replace the PANEL FAN, please prepare also a piece of FAN CUSHION*. Refer to the chapter “ ” for the FAN CUSHION*. * FAN CUSHION: Parts list SYMBOL No.14 Disassembling Wiring...
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LWU720i / LHD720i / LWU620i BOTTOM CASE Disassembling Assembling Remove 12 screws and detach the bottom metal. Put the bottom metal on the BOTTOM CASE shown in the drawing. NOTE: Remember to detach the bottom metal and re-use them with new BOTTOM CASE. NOTE: The service parts do not include the metal.
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LWU720i / LHD720i / LWU620i ADJUST FOOT (ADJUST FOOT ASS’Y DD1) Disassembling Assembling 1) Insert the ADJUST FOOT to the BOTTOM to remove from the BOTTOM CASE. 2) Rotate the ADJUST FOOT to the bottom and LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 1 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 2 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 3 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 4 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 5 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 6 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 7 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 8 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 9 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 10 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 11 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 12 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 13 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 14 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 15 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 16 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 17 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 18 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 19 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL G SENSOR/P SENSOR/PLD/RTC P SENSOR TEMP./FILTER SENSOR MAIN PCB 20 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 21 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 22 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 23 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 24 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 25 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 26 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 27 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 28 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL MAIN PCB 29 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL ( LWU720i / LHD720i only ) MAIN PCB 30 LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i CONFIDENTIAL POWER for Panel Drive 1.2V POWER for Panel Drive 5.4V POWER for Panel Drive 3.3V POWER for Panel Drive 10.0V POWER for Panel Drive 1.8V POWER for Panel Drive -5.0V POWER for Panel Drive POWER for Panel Drive LWU720i/LHD720i/LWU620i Service Manual...
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LWU720i / LHD720i / LWU620i Basic circuit diagram list REMOTE-F PCB MAIN PCB 9 REMOTE-R PCB MAIN PCB 10 BATTERY PCB MAIN PCB 11 LAMP DOOR SW PCB MAIN PCB 12 SENSOR-A PCB MAIN PCB 13 SENSOR-B PCB MAIN PCB 14 SUB LCD PCB MAIN PCB 15 POWER UNIT BALLAST 1...
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LWU720i LHD720i LWU620i LWU720i/LHD720i/LWU620i Service Manual...