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2-34

REV.A

2.15.4 LV Thermistor

This is the temperature detection thermistor installed top the light valve. If the cooling
is not sufficient because of the cooling fan failure (installed at the bottom of the light
valve) or filter contamination (installed at the top of the light valve), the power is shut
off to protect the light valves from overheat. The thermal stability of the light valve
(Liquid crystal panel) is not so good. The power shut off control is the same as the
lamp house thermistor’s written in 2.15.3.

Figure2- 46 LV thermistor

LV Thermister

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Содержание EMP-7300

Страница 1: ...EPSON DATA PROJECTOR XGA Data Projector SERVICE MANUAL EMP 7300 EPSON ...

Страница 2: ...the type 1 information equipment and uses radio frequency energy and fully complies with the limits for the specifications in the computer information equipment radio interference regulation VCCI rules If not installed and used properly manufacturer s instructions may cause interference to radio and television reception TRADEMARK IBM and DOS V are the trademark or the registered trademark of Inter...

Страница 3: ...Record of Revisions History Issued Date Alternation REVA 1998 February 13 Preliminary Issued Memo Random Free area to memorize any important technical information here ...

Страница 4: ...g assembly and disassembly Do not look into the light source or lens while the light is on Protect eyes from being damaged 3 PROTECTION FROM ACCIDENTS Any operation should be done while the device placed on a flat and stable place to prevent the device or parts from being dropped Be careful not to place tools and parts on the device or at your feet Whenever doing any repair work on the product be ...

Страница 5: ...ts or repair work on the product make sure that the work is done in a clean room free of dust and dirt in order to keep the optical element away from dirt 3 REQUIREMENT FOR THE MAINTENANCE PERSON Authorized person should have the following knowledge and skill for the maintenance of EMP 7300 Need to be trained by EPSON authorized maintenance training program and to be authorized as a service engine...

Страница 6: ...1 6 2 Audio 1 2 1 18 1 6 3 Audio Out 1 18 1 6 4 S Video 1 18 1 6 5 Video 1 19 1 6 6 Audio L R 1 19 1 6 7 Mouse Com 1 2 1 19 1 6 8 Receptor 1 20 1 6 9 RGB Video Input EHQ option I F 1 20 Chapter 2 Theory of operation 2 1 HARDWARE 2 1 2 1 1 Electrical System Connections 2 2 2 1 2 Optical System Connections Optical Engine 2 3 2 2 POWER SUPPLY UNIT 2 5 2 3 CD10MA BOARD 2 8 2 4 CD10DR BOARD 2 11 2 5 SW...

Страница 7: ...ing the Rear Case Unit Assembly 3 16 3 2 10 Removing the CD10AJ CD10MJ CD10PJ CD10VJ Board 3 17 3 2 11 Removing the Lamp Thermistor 3 19 3 2 12 Removing the Prism Duct LV Thermistor 3 20 3 2 13 Removing the Safety Switch 3 21 3 2 14 Removing the Optical Engine 3 22 3 2 15 Removing the Power Supply Unit PBS Thermistor 3 23 3 2 16 Removing the Foot Adjuster A B 3 25 3 2 17 Removing the CD10DR Board ...

Страница 8: ...Chapter 1 Product general ...

Страница 9: ...pply XGA resolution of 1024 x768 dots Standard attachment of remote controller The projector can be controlled using a handheld remote control unit with menus being provided for Image source switching and Image adjustment The remote control can also be used as a wireless mouse to control mouse operations on the computer screen during presentations The ELP LINK IITM software that comes with the pro...

Страница 10: ...indicator Speaker Handle Foot lever Remote controller signal receptor Theft proof Focus ring Zoom ring Front foot Operator panel Resize button Source button Menu button Operation indicator Sync button Power button Blank button Tracking button Enter button Volume button Menu button Operator panel ...

Страница 11: ...1 3 REV A Figure1 2 Bottom side view 1 2 2 Inside View of Main Frame Figure1 3 Inside view of main frame Power supply unit Main board Front foot Lamp cover Rear foot Air filter cover ...

Страница 12: ...1 4 REV A Figure1 4 side view Figure1 5 Under the main board view Driver board Light guide unit Exhaust fan LV Thermister Prism duct Driver board Inlet unit ...

Страница 13: ...V A Figure1 6 Inside of rear case unit Figure1 7 Under the driver board view CD10AJ board CD10VJ board CD10RJ board CD10MJ board Foot adjuster A Light guide unit Safety switch Lamp Thermister Lamp power cable ...

Страница 14: ...1 6 REV A Figure1 8 Lower case view Under the light guide block Inlet unit Filter cover switch CN board Filter board Air filter frame ...

Страница 15: ... 11 Remote controller Menu button Effect button Right click button Custom button Mute button Volume button Source button Effect button Pointer button Blank button Resize button Freeze button Power button Front view Rear view Remote infrared Ray Left click button Battery cover ...

Страница 16: ...1 8 REV A 1 3 CONNECTION 1 3 1 Connecting to a PC Figure1 13 Computer cable Attached Accessory Computer 1 ...

Страница 17: ...Default setting is MAC13 mode Table1 1 MAC Adapter Dip Switch settings Mode Switch A ON switch B ON VGA 640x480 3 4 5 8 13 640x480 1 2 5 8 16 832x624 2 4 5 8 19 1024x768 2 3 5 8 21 1152x870 1 2 3 4 5 8 13 Multi Res 1 2 5 8 14 Multi Res 1 2 5 3 4 8 17 Multi Res 1 2 5 3 8 4 8 21 Multi Res 1 2 5 3 8 Figure1 15 Monitor adapter Computer 1 Computer cable Standard accessory Mac Desk top adapter Attached ...

Страница 18: ... Video source Figure1 17 Connection for video source 1 3 4 Connecting to an Audio source Figure1 18 Connection for audio source A V cable Attached accessory Video Audio L Audio R Audio out External audio devices Audio cable Consumable ...

Страница 19: ...1 11 REV A 1 4 MAIN COMPORNENT CD10MA board Figure1 20 CD10MA board CD10DR board Figure1 22 CD10DR board CD10AU board Figure1 23 CD10AU board ...

Страница 20: ...1 12 REV A CD10MJ board Figure1 26 CD10MJ board CD10AJ board Figure1 27 CD10AJ board CD10PJ board Figure1 28 CD10PJ board CD10VJ board Figure1 29 CD10VJ board ...

Страница 21: ...1 13 REV A Power supply unit Figure1 30 Switch panel Switch panel Figure1 31 Switch panel 15 Optical engine Figure1 32 Optical engine ...

Страница 22: ...1 14 REV A Receptor board Figure1 33 Receptor board Receptor board Receptor board ...

Страница 23: ... device Audio signal stereo from the video devices Input interface is separated with R Right and L Left Interface type RCA jack Input signal 500mVrms Audio 1 interface For Computer 1 Host computer 1 Audio input stereo Interface type 3 5mm Stereo mini jack Input signal 500mVrms 47KΩ Audio 2 interface For Computer 2 Host computer 2 Audio input stereo Interface type 3 5mm Stereo mini jack Input signa...

Страница 24: ...njack as Video In G R Y Commonjack as Video In B B Y Commonjack as Video In R POWER SUPPLY Input Voltage AC100 120V 200 240V 10 50 60Hz Power Consumption Approx 260 W Standby mode 30W 300 mm W x 120 mm H x 363 mm D Dimensions 300 mm W x 129 mm H x 400 mm D include foot adjuster and lens Weight Approx 6 7 kg ENVIRONMENT Operational temperature Storage temperature 5 to 40 degrees centigrrate 10 to 6...

Страница 25: ...put D SUB 15 HD Pin Terminal Pin Terminal 1 Red video 9 5V 2 Green video 10 Synchronous GND 3 Blue video 11 Monitor ID bit 0 4 Monitor ID bit 2 12 SDA 5 GND 13 Horizontal synchronization 6 Red video GND 14 Vertical synchronization 7 Green video GND 15 SCL 8 Blue video GND 1 5 10 6 11 15 ...

Страница 26: ...pin Computer audio input R The other pins NC 1 6 3 Audio Out Stereo mini jack with 2 circuits for detection pin 1 4 pin GND 2 pin Audio output L 3 pin Audio output R 5 pin Detection of Line out jack insertion The other pins NC 1 6 4 S Video Mini DIN 4 pin with a detection pin 1 2 6 pin GND 3 pin Y signal input 4 pin C signal input 5 pin Input detection terminal H H H H H H H H H H H H H H H H H H ...

Страница 27: ...dio L R RCA Gold plating only insertion part Light angle H 15mm Color L white R red 3 6 pin GND 4 pin Audio R return 5 pin Audio input L 7 pin Audio L return 8 pin Audio input R 1 6 7 Mouse Com 1 2 Multi mouse jack 13 pin jack Signal meanings are different according to the operation mode 2 1 3 6PIN 5 8PIN 4 7PIN 4 8 12 1 5 9 13 ...

Страница 28: ...EFT Reserved GND Reserved 6 Reserved RIGHT LEFT GND Reserved 7 Reserved Reserved Reserved GND Reserved 8 Reserved Reserved Reserved Reserved TXD 9 Reserved Reserved Reserved Reserved RXD 10 Reserved Reserved Reserved Reserved DTR 11 Reserved Reserved Reserved Reserved DSR 12 PCV 5V PCV 5V PCV 5V Reserved Reserved 13 GND GND GND GND GND 1 6 8 Receptor 1 6 9 RGB Video Input EHQ option I F 2 1 PIN GN...

Страница 29: ...Chapter 2 Theory of operation ...

Страница 30: ...he lights from the light guide unit 4 The lights transmitted through the light valves will be combined the prism and projected through the projection lens unit Note 1 Cooling fan cools the light valves of R G B LCD panel Note 2 Exhaust fan exhausts mainly the heated air around the light source Note 3 Blower fan exhausts mainly the heated air in the power supply unit CD10MJ CD10PJ CD10AJ CD10VJ CD1...

Страница 31: ...LVThermister CD10FCboard CD10FUboard CN103 CN100 CD10AJ board CN301 CN300 CN101 CN100 CN620 IN FAN CN902 MOUSE CN401 S DET CN800 IF B CN201 PC IN CN200 PC SYN CN901 R RC CN622 EX FAN CN651 LAMP TH Lamp CN621 LAMP FAN CN600 PS CN650 AIR TH CN652 CN400 SW CD10MA board Power supply unit CN104 CN700 CN800 CD10DR board CN900 CN100 Fuse Lamp inner housing SpeakerR CD10VJboard CN402 AU CN203 CD10PJboard ...

Страница 32: ...is one replaceable part In addition to the five items CD10FC board is attached at the bottom of light guide unit It relay the switch signal on the lamp inner housing to the CD10DR board It is therefore independent of the optical functions Figure2 3 Optical block Inside view of light guide unit Figure2 4 Inside of light guide unit Figure2 5 Lamp inner housing Mounting position Projection lens unit ...

Страница 33: ...lude one UHE LAMP as a light source CD10FU board is mounted for lamp inner housing detection LIGHT GUIDE UNIT Disperse the light from the light source and uniform by the lens array A B Ultraviolet ray also eliminated Disperse the light in three R G B factors with condensor lens and mirror OPTICAL HEAD PRISM UNIT Consist of three light valves polarization plate and prism unit Each light valve contr...

Страница 34: ...erature if it senses overheat it shuts off the regulator output via the CD10MA board Although the outline of its function is shown below please never disassemble the power supply unit at the field maintenance service Figure2 6 Power supply unit 1 Function block Figure2 7 Function block REGULATOR FILTER RECTIFIRE 12V 22V 5V AC Light source lamp BLOWER FAN SAFTY SW POWER CONTROL INTERLOCK SW AC IN N...

Страница 35: ...oard via CN 600 The background voltage is subsequently supplied to the power on off circuit The filter rectification circuit work to neglect noise on the AC line and generate DC voltage for the regulator The regulator generates the various level of DC voltage as shown in the below table in the switching regulator The regulator detects the voltage output level at the 5V line and feed back to the sw...

Страница 36: ... the blower fan will be exhausted outside by the exhaust fan which is connected to the connector CN 621 on the CD10MA board 3 Pin assignment on the CD10MA board connector CN 600 Table2 3 CN600 Pin No Signal 1 5V_S 2 3 5V 4 5 3 3V 6 7 12V_F 8 PWDS 9 PWON 1 to 12 L GND 13 14 A GND 15 12V 16 12V 17 22V 18 L GND 19 LPSTC 20 BACTA Figure2 8 PIN 20 PIN 1 CN600 ...

Страница 37: ...ontroller and circuits for switch panel control computer in 1 2 interface control display output control power management control and etc The CD10MA board controls everything except to generate and audio output the display signal The CD10MA board is available as a unit for the service parts Figure2 9 CD10MA board Figure2 10 CD10MA board ...

Страница 38: ...2 9 REV A 1 CD10MAboardcircuitblock 0 1 2 34 11 1 3 1 55 67 8 1 8 8 6 8 8 8 8 8 8 7 1 9 6 6 6 0 6 7 77 7 7 7 7 6 40 6 8 4 6 6 4 4 6 6 4 0 6 Figure2 11 CD10MA board circuit block 6 ...

Страница 39: ...data received data are stored into the SRAM IC300 to 305 then read out to the video controller via Super Impose IC502 Digital video controller generate the display control timing and send to the CD10DR board 6 The EEPROM IC413 and timer circuit provided the operating time control of the light source bulb lamp inner housing It s operation is described below Table2 4 Light source state Lamp monitor ...

Страница 40: ...ns one is for converting the R G B display signal from the CD10MA board into twelve states of analog signals light valve driver signals and another is for controlling the display image by referencing electrical correction data Figure2 12 CD10DR board Figure2 13 ...

Страница 41: ...welve channels DAC generated signals for R G B again then the signals output to the light valves LCD via level shifter circuit 4 Brightness is done that bios R G B generated from twelve channels DAC control then changing each analog signals output level R G B of video amplifier circuit 5 The flash ROM contains electrical correction data for image display Correction data are read by display control...

Страница 42: ...IFTER GREEN LEVEL SHIFTER BLUE LEVEL SHIFTER F101 REGULATOR F100 REGULATOR REGULATOR REGULATOR REGULATOR REGULATOR BIAS CONTROL GD0 to 7 BD0 to 7 CLK SCL SDA CLR HSYSC VSYNC RA1 to 12 RBIAS RDY DIR CLY CLX DX DY ENB NRG GDY GA1 to 12 GBIAS BDY BA1 to 12 BBIAS P12V P5V P22V VDDY P3V VDDY P15V 9V M12V RGB BIAS BIAS COM R G B RD1 to 12 GD1 to 12 BD1 to 12 RD0 to 7 DAC 12 Channel CN100 CD10FC FLASH RO...

Страница 43: ...2 14 REV A 2 5 SWITCH PANEL This panel includes the board with 13 switches and is connected to the connector CN 400 on the CD10MA board Figure2 15 Figure2 16 ...

Страница 44: ...it The audio controller control volume include MUTE based the serial data SDA SCL output from CD10MA board The audio signal interfaces controlled CD10AU board are shown below 1 The voice generated from CD10MA board Waning voice etc 2 Audio In 1 for computer 1 Audio In 2 for computer 2 Audio out for outside sparker output 3 S Video Super impose video input Video In Video device image data input Aud...

Страница 45: ...ut interface or the built in speaker through the 3D effector again The sound controller performs the audio signal output selection based on the SCL SDA serial data clock signals provided from the CD10MA board CONNECTTO CD10MABOARDCN402 SPEAKERL SPEAKERR C N 1 0 0 IC102 PREAMPLIFIER IC105 AUDIO CONTROLLER IC104 3D EFECTOR AMP IC107 AMPLIFIER ONTIME IN1 2 CN102 BVREGULATOR C N 1 0 1 IC603 IC106 CN10...

Страница 46: ... the host computer and cables are connected to them host computer control is available from remote controller The controller on the CD10MA board automatically determines the interface operation mode to apply the proper circuit to them The optional remote control receiver can be connected to the receptor interface J 101 The receiver provides the same functions as the standard receptor board FI RI b...

Страница 47: ... circuit block You must use the cable appointed our company for Mouse COM interface Exclusive connector cable is not only connect signals but also connect to ground line in part and return to the other signal line inside J100 C N 1 0 0 CN101 CN102 Mouse Com1 Mouse Com2 Repeater ...

Страница 48: ...ed CD10AU board Figure2 23 CD10AJ board Figure2 24 CD10AJ board Figure2 25 CD10AJ board circuit block When the outside speakers connect to Audio out Line Out Detect signal is ON then stop audio output to the internal speaker connected CD10AU board controlled by CD10MA board IN1 IN2 CN300 IN2 IN1 C N 3 0 1 Audio1 Audio2 AudioOut J300 J301 J302 Filter circuit Filter circuit Filter circuit IC300Selec...

Страница 49: ...ch as a video device The interface connectors are shown below S Video R R Y VD Video B B Y Audio L BNC Audio R HD Sync Figure2 26 Figure2 27 Figure2 28 R R Y G Y B B Y HD VD CVBS C Y A GND CN100 R R Y G Y G Sync B BY HC Sync VD CN101 J105 RCA R RCA L S DET VJDET AGND DSEL YELLOW RED WHITE S Video SW100 ConnecttoCD10MAboardCN800 ConnecttoCD10MAboardCN401 BNCswitch ...

Страница 50: ...t and the output circuit to RGB monitor are installed on the board Figure2 29 Figure2 30 Figure2 31 Computer 1 RGB Input 1 CN 2 0 0 Computer 2 RGB Input 2 Computer Out RGB Output CN 2 0 1 CN 2 0 2 Filter circuit Filter Circuit IC203 IC206 IC207 CN203 CN204 IC204 R IN G IN B IN ConnecttoCD10MAboardCN201 ConnecttoCD10MAboardCN200 PCHS PCVS CP05 07 5V GNB RGB ...

Страница 51: ... on the CD10MA board its output signal serial data is connected to I F control CPU after wired OR is applied on CD10MA board 1 The CD10MA board performs the power ON OFF operation and the starting up menus utilizing the serial data received from the remote controller button switches and pointers 2 The serial signal send to the CD10DR board via the CD10MA board performs the display control Freeze B...

Страница 52: ...2 23 REV A The CD10RC board connecting block shown below Figure2 34 CD10RC board connecting block CD10RC Front FI board Rear Remote control Infrared Ray CN900 CN901 IC901 I FCPU IC 902 CD10MA board ...

Страница 53: ...Speaker Right Figure2 35 Speaker unit Figure2 36 Speaker control circuit block The audio input signals from computers or an audio device are first amplified by the control circuit on the CD10AU board then are output to the speakers The speakers are connected to CN 102 103 on the CD10AU board Detecting the connection to an external speaker Audio Out the CD10MA board only determines the use of the b...

Страница 54: ...ors for dispersing the light built in the block The below drawings show the appearance and the internal block of the light valve block Figure2 37 Light guide unit Figure2 38 CONDENSOR LENS D GDM CONDENSOR LENS L MIRROR L LENS ADJUSTING SCREW LENS ARRAY ADJUSTING SPRING MIRROR R UNIT CONDENSOR LENS G CONDENSOR LENS R MIRROR C UNIT MIRROR B LENS ADJUSTING SCREW CONDENSOR LENS E CONDENSOR LENS B LENS...

Страница 55: ... the blue light from the light source Since the input light to the GDM is only blue and green lights by the CDM as described above green light is reflected by the GDM and provided to the condenser lens G 4 Condenser Lens L The condenser lens L collects the light dispersed by the Lens Array A B in order to protect reduction and provide to the mirror L at the next stage 5 Condenser Lens R G B To col...

Страница 56: ...upply is applied to receive the alternating current from the power supply unit so its lead wire is connected to the lamp Figure2 39 Figure2 40 1 The light source lamp The brightness of the light source lamp reduces in proportion to its running hours as mentioned above In this device the standard lamp life is 2000 hours If you notice the lamp brightness reduces we recommend you to replace the lamp ...

Страница 57: ...efore you replace it with a new lamp inner housing You can t replace with used lamp inner housing Once you start up with a new lamp inner housing the fuse on the FU board is blown so it doesn t recognize as a new one The figure 2 33 shows the control circuit Figure2 41 Lamp inner housing control CD10FC Board Signal meaning LTPCL Light power supply control signal LPFAL Light power supply failure LL...

Страница 58: ...D10MA board When it is new or changed to a new one LLIFE signal from IC600 on the CD10MA board becomes high 5VA on the CD10MA board pulls up LLIFE signal line through the resistance and the fuse on the CD10FU board When LLIFE shows high IC600 is reset the lamp total hour in EEPROM IC413 to zero After word main CPU IC415 on the CD10MA board output LFUSE signal and connects LLIFE signal line to the ...

Страница 59: ...hermal switch on the lamp outer housing Overheat protection for light source lamp area Power is shut temperature exceeds limitation Lamp house thermistor On the lamp outer housing Thermistor Overheat protection for light source lamp area Power off temperature exceeds limitation LV thermistor On the prism duct Thermistor Overheat protection for light bulb Power off temperature exceeds limitation Fr...

Страница 60: ...amp lamp inner housing runs and generates the high heat For replacing the lamp inner housing you open the cover For this reason the switch is installed to protect you from burn Figure2 42 Interlock switch Figure2 43 The interlock switch is installed on the AC power source line Consequently if the lamp cover is open the AC power source is shut off and you can not turn on the power Interlock switch ...

Страница 61: ...witch is installed considering the lamp thermistor trouble in overheat condition Figure2 44 Safety switch To the safety switch the power supply unit cable with fasten tab is connected When the temperature rises to certain degrees every regulating operations of the power supply unit are stopped and power is shut off This switch runs once you can not start up the power before the temperature falls t...

Страница 62: ... the lamp this thermistor shuts off the power regulation on the power supply unit if the temperature rises to certain degrees lower than safety switch s level Figure2 45 Lamp thermistor The lamp house thermistor is connected to CN 651 on the CD10MA board When it becomes the overheat condition to main CPU it output the interrupt signal and shuts off the power regulation on the power supply unit via...

Страница 63: ... installed at the bottom of the light valve or filter contamination installed at the top of the light valve the power is shut off to protect the light valves from overheat The thermal stability of the light valve Liquid crystal panel is not so good The power shut off control is the same as the lamp house thermistor s written in 2 15 3 Figure2 46 LV thermistor LV Thermister ...

Страница 64: ... the power supply unit If the circumstances around the power supply unit become the overheat condition by the abnormal fan or circuit condition this thermistor shuts off the power The power shut off control is the same as the lamp house thermistor s written in 2 15 3 Figure 2 47 Front temperature thermistor Front temperature Thermister ...

Страница 65: ...Chapter 3 Disassembly and assembly ...

Страница 66: ...and accessories listed in the table below Table3 1 Tool requirement Name Q t y Supply Use Phillips screwdriver 2 1 Market Dissasemble the case and interiors Phillips screwdriver 1 Market Remove lamp cover and air filter cover Tweezers 1 Market Unlock the FPC connnector on D R board Brush 1 Market Burush off the dust around fan Vacuum cleaner 1 Market Clean the fan and filter Paper wiper Some Marke...

Страница 67: ...ll not be made because of the pixel divergence to R G B synthesizing and projection lens unit being out of focus and color uniformity Caution Do not loosen the prism unit fixing screws 3 Light guide unit The alignment of the light guide unit on the optical head unit is applied gap and concurrent to the polarization plate in our factory If the alignment is modified clear image will not be made beca...

Страница 68: ...l system the electric correction is necessary Consequently the CD10DR board and the optical block consists of optical head light guide unit make one set At the factory shipment following correction data are stored in the Flash ROM on the CD10DR board according to the specified optical engine Gamma adjustment data Flicker adjustment data Ghost contrast adjustment data Sub contrast adjustment data F...

Страница 69: ...nd B and circuit board assemblies are highly sensitive to static electricity When you remove a optical engine or circuit board place it in an anti static bag immediately When you perform the assembly or disassembly operations listed below check the pertinent unit and its surfaces for any dirt before reinstalling them If the unit is found dirty clean it 1 Removing the optical engine 2 Removing the ...

Страница 70: ... 2 20 Paragraph 3 2 19 to 3 2 20 are reference only do not disassemble Figure3 1 Disassembly flow chart Prism duct LV Thermister 3 2 12 Air filter frame 3 2 2 Upper case Unit 3 2 3 Foot adjuster 3 2 16 Lamp Thermister 3 2 11 START Lamp inner housing 3 2 1 Safety Switch 3 2 13 Optical engine 3 2 14 CD10DR head 3 2 17 FC board 3 2 18 Projection lens unit 3 2 19 Cooling fan Exhaust fan optical head u...

Страница 71: ...re3 2 Screws Lamp inner housing Handle Figure3 3 1 Remove the lamp cover unit two fixing screws from the bottom of lower case Screw M4 7 B Ni P N1038173 mounting torque 4 5 kg cm 3 9 lb inch 2 Remove two lamp inner housing fixing screws Screw M4 7 B Ni P N1038173 mounting torque 4 5 kg cm 3 9 lb inch 3 Pull up the handle on the lamp inner housing and remove the lamp unit Caution When installing th...

Страница 72: ...3 7 REV A 3 2 2 Removing the Air Filter Frame Unit Prerequisite conditions None Figure3 4 1 Remove the Air Filter Flame Unit Pull down the tab from the bottom of lower case Air filter frame tab ...

Страница 73: ... Screw M4 14 F Zn Bind P N1021825 mounting torque 6 5kg cm 5 6lb inch 3 Remove two upper case unit fixing screws on right sides 4 Remove two upper case unit fixing screws on left sides Screw M4 9 F ZB P N1034033 mounting torque 6 5kg cm 5 6lb inch 5 Hold the left and right sides of the upper case unit and lightly pull the upper case straight up a little Continued on the next page screw Handle scre...

Страница 74: ... the previous page Figure3 7 Figure3 8 5 Disconnect the switch panel cable from connector CN 1400 on the CD10MA board 6 Remove the upper case 7 Remove the handle out of the lower case unit Upper case CN1400 Switch panel cable ...

Страница 75: ... four tabs from inside then detach the tape sealing 2 Remove the switch panel Figure3 10 Caution When installing the switch panel ensure the switch panel spring is placed on the upper case Tab B Tab A Marked with square area are sealed with tape Switch panel spring Switch panel Switch panel spring ...

Страница 76: ... two screws fixing the speaker unit left Screw M3 6 F Ni P N1033122 mounting torque 4 5kg cm 3 9lb inch 2 Disconnect the speaker cable from CN601 on the CD10MA board Caution 1 The speaker unit incorporates a permanent magnet Keep it away from electromagnetic media such as floppy disks and magnetic cards 2 When fixing a speaker align the two speaker holes with those of the frame then secure them wi...

Страница 77: ... bracket Screw M3 6 F Ni P N1033122 mounting torque 4 5kg cm 3 9lb inch Screw M3 8 F ZN Bind P N1021824 mounting torque 4 5kg cm 3 9lb inch 2 Disconnect the connector on CD10AU board 3 Remove two screws fixing CD10AU board on the speaker bracket then remove CD10AU board Screw M3 6 F Ni P N1033122 mounting torque 4 5kg cm 3 9lb inch Figure3 13 Speaker bracket screw screws ...

Страница 78: ... M3 6 F Ni P N1033122 mounting torque 4 5kg cm 3 9lb inch 2 RI Board Located on the power supply unit Figure3 15 1 Disconnect the cable connector on the RI board 2 Remove the screw fixing the RI board on the power supply unit Screw M3 6 F Ni P N1033122 mounting torque 4 5kg cm 3 9lb inch Caution When installing the receptor board assembly align the hole on the board with the boss on the frame befo...

Страница 79: ...e3 16 1 Disconnect the all of cable connectors on the CD10MA board Figure3 17 CN550 CN602 IN FAN CN902 MOUSE CN1401 S DET CN1800 IF B CN252 PC IN CN1200 PC S N CN901 R RC CN603 EX FAN CN651 LAMP TH CN1600 LAMP FAN CN600 PS CN652 AIR TH CN1400 SW CD10MA board CN402 AU CN900 F RC ...

Страница 80: ...d Screw M3 6 F Ni P N1033122 mounting torque 4 5kg cm 3 9lb inch 3 Grasp the CD10MA board on the left side and disconnect the connector from the CD10DR board Caution Never apply any mechanical stress to the CD10MA board to avoid malfunction caused by wire breaking or solder flaking screw screws screws ...

Страница 81: ...e on the bottom of lower case Screw M3 8 F ZN Bind P N1021824 mounting torque 4 5kg cm 3 9lb inch Screw M3 6 F Ni P N1033122 mounting torque 4 5kg cm 3 9lb inch 2 Disconnect the connectors on the CD10VJ board 3 Grasp the both side of the rear case unit then pull it out Caution When installing the rear case unit assembly slowly push it screws ...

Страница 82: ... N1033122 mounting torque 4 5kg cm 3 9lb inch 2 Remove two screws fixing the metal flame upper then remove the metal flame 3 Remove two screws fixing the metal flame lower then remove the metal flame CD10VJ board is glued on the metal flame Screw M3 6 F Ni P N1033122 mounting torque 4 5kg cm 3 9lb inch Figure3 22 Continued on the next page CD10AJ board CD10MJ board CD10VJ board CD10PJ board screws...

Страница 83: ...en remove CD10MJ board Screw M3 6 F Ni P N1033122 mounting torque 4 5kg cm 3 9lb inch Screw M3 6 F ZB P N1034713 mounting torque 4 5kg cm 3 9lb inch 6 Remove two screws and six hex stud screws fixing CD10AJ board then remove CD10AJ board Screw M3 6 F Ni P N1033122 mounting torque 4 5kg cm 3 9lb inch Screw hexagon screw P N1032134 mounting torque 4 5kg cm 3 9lb inch CD10AJ board CD10MJ board CD10PJ...

Страница 84: ...ing the Lamp Thermistor Prerequisite condition 3 2 3 3 2 7 Figure3 25 1 Remove the screw fixing the lamp thermistor on the light guide unit Screw M3 12 F Zn Bind P N1021823 mounting torque 6 0kg cm 5 2lb inch Lamp Thermister ...

Страница 85: ...ew M3 8 F ZB P N1033691 mounting torque 6 0kg cm 5 2lb inch 3 Remove the prism duct lifting it straight up Caution When you replace the prism duct make sure that three FCC cables are not caught between light guide unit and it The filter on the prism duct is susceptible to dust and dirt When installing the prism duct check its cleanness and clean it if necessary When installing the prism duct make ...

Страница 86: ... from the safety switch and detach the safety switch Screw M3 12 F Zn Bind P Tight P N1021823 mounting torque 6 0 kg cm 5 2 lb inch Caution When removing the Fast on terminals do not apply excessive force to the terminals on the safety switch in the horizontal or vertical direction The polarity of the cables is not significant connect them to any terminals on the safety switch Safety switch screws...

Страница 87: ...assis Screw M3 4 F ZN P N1021795 mounting torque 4 0kg cm 3 5lb inch Screw M3 6 F Ni P N1033122 mounting torque 4 5kg cm 3 9lb inch 2 Remove four optical block fixing screws Screw M4 14 F ZN Bind P N1021825 mounting torque 6 5kg cm 5 6lb inch 3 Pull out the speaker bracket 4 Pull the optical engine straight up from the lower case Figure3 29 screws speaker bracket screws ...

Страница 88: ... 3 2 10 1 Power Supply Unit Figure3 30 1 Remove two wire cables connecting the safety switch 2 Remove two screws with washer fixing the power supply cable connector then remove the power supply cable Screw M3 10 F Zn P N1038273 mounting torque 6 5kg cm 5 6lb inch Power cable screws Power supply cable Safety switch ...

Страница 89: ...t When installing the power supply unit align the power supply unit positioning holes with these bosses The cooling fan and its peripheral parts in the power supply unit is susceptible to dust and dirt When installing the power supply unit check fan s cleanness and clean it if necessary 2 PBS Thermistor Figure3 32 1 Take off the tapes fixing the PBS thermistor on the power supply unit 2 Separate t...

Страница 90: ... 33 Figure3 34 1 Remove two screws fixing the Foot Unit on the lower case then remove the Foot Unit Screw M3 15 F Zn Bind P Tight P N1039678 mounting torque 6 0 kg cm 5 2 lb inch 2 Remove the OP ring D on the foot adjuster 3 Push the lever then remove the foot adjuster Foot adjuster OP ring screws Lever ...

Страница 91: ...g torque 6 0kg cm 5 2lb inch 2 Disconnect the connectors from CN 100 3 Disconnect the FPC cables from CN 700 800 900 4 Pull it straight up Figure3 36 EMP 7300 CD10DR board Caution Before disconnecting the FPC cable from the connectors softly pull each connector straight up to unlock it LVThermister CN103 CN104 Adjustment CN700 CN800 CD10DR board CN900 CN100 fuse CN700 CN100 CN800 CN900 Hex stud sc...

Страница 92: ...ite condition 3 2 1 3 2 3 3 2 7 3 2 8 3 2 14 Figure3 37 1 Disconnect the cable connector CN1 on the FC Board 2 To detach the FC Board remove the screw on it Screw M3 12 F Zn Bind P Tight P N1021823 mounting torque 6 0 kg cm 5 2 lb inch FC Board Screw ...

Страница 93: ...s unit with your hand before removing all screws Screw M4 10 F ZN P N1034026 mounting torque 6 0 kg cm 5 2 lb inch Caution 1 When installing the projection lens unit align the two bosses on the frame with the positioning holes before tightening the screws Tighten the screws with a torque of 6 0 kg Do not make the screws too tight too large mounting torque may damage the projection lens unit 2 Take...

Страница 94: ...e Prerequisite condition 3 2 3 3 2 7 3 2 8 3 2 14 Screws Figure3 40 1 Cooling fan 1 Remove two cooling fan fixing screws and remove the cooling fan Screw M4 20 F ZN S2W1 P N1033711 mounting torque 6 0kg cm 5 2lb inch Caution When installing the cooling fan place it so that the label side faces down on the aluminum die cast side and that its cable is oriented as shown in the photo Clean the cooling...

Страница 95: ...uch the three light bulb screens on the optical head unit with a hand or bend the FPC cable When installing the light guide unit on the optical head unit align the two bosses beside the screws of front side to the holes of the optical head unit before tightening the screws Do not disassemble or bend the light valve on the optical head unit Three light valves are required factory adjustment Screws ...

Страница 96: ...cm 5 2lb inch 3 Remove the exhaust fan Caution 1 When installing the exhaust fan take care with the orientation of it Installing the fan in the reverse orientation may result in a device failure or extended cooling time because of an overheat condition Make sure that the label on the fan faces outward 2 The exhaust fan unit and its peripherals are susceptible to dust and dirt When installing the e...

Страница 97: ...Chapter 4 Troubleshooting ...

Страница 98: ...isted below They need to be prepared by the user Table4 1 Name Quantity Use Remarks Projector screen 1 To project images Rule 3 m 1 To measure the projection distance Host computer 1 To supply test patterns PC or compatible Color display 1 To manipulate and display on host computer Video equipment 1 To test video input video deck video camera etc External speaker unit 1 To test voice output with a...

Страница 99: ... out the any damage on the cover area Ensure internal cable connections on the CD10MA board Remove the upper case unit Ensure power on off and initialization No signal display Connect power cable and turn on the power Ensure screen display and picture quality Connect host computer video device and RGB monitor Ensure audio output to the internal speaker and external speaker Ensure button operations...

Страница 100: ...s not presented on the lens surface Any transformation or crack are not presented Fixing screw on the Air filter frame is not loosen Tab on the Air filter frame is not transformed Dirt condition is not presented on the Air filter frame Dirt condition is not presented on the cooling fan cooling fan is located under the Air filter frame Two of fixing screw on the Lamp cover are not loosen Tab on the...

Страница 101: ...he CD10MA board and related circuit Refer to the following figure for cable and connector location Figure4 3 Internal cable connections Front temperature Thermister CD10AU board Cooling fan CD10MJ board CD10AJ board CD10VJ board CD10PJ board CD10RC board Blower fan Lamp Thermister Exhaust fan Power supply unit CD10RC board LV Thermister ...

Страница 102: ...eration or lamp indicator become lights or blink Replace Power supply unit Does the lamp cover secure to lower case Install the lamp cover and lamp inner housing again Replace the safety switch Does the safety switch resistance is almost 0 ohm 2 Disconnect power cable Disconnect fast on tab on the safety switch Measure the safety switch resistance A B Go to Start Go to Display Picture quality 1 AC...

Страница 103: ... heat condition 8 Red blink Circuit malfunction 9 Orange and Red Lamp timer exceed 1900 hours 10 Red Lamp life is finished 11 Red blink Lamp or Power supply problem Suspect cause reason 1 Stop at the condition 1 or 8 CD10MAboard Driver board Optical engine Power supply unit 2 Stop at the condition 2 CD10MA board Power supply unit Lamp inner housing 3 Stop at the condition 4 Exhaust fan Lamp Thermi...

Страница 104: ...n in the table 1 Does fine image appear YES YES NO NO YES NO NO YES YES NO YES NO YES NO Replace Optical engine Display Picture quality Start Does screen appear Does light source lamp on Replace Lamp inner housing Does light source lamp on Replace CD10MA board Does light source lamp on Replace Lamp Thermister Does light source lamp on Replace Power supply unit Does light source lamp on Replace Opt...

Страница 105: ...ture quality is good Take the adjustment shown in the table 1 page 4 8 Does screen appear Replace Optical engine YES NO YES YES YES YES YES NO YES NO YES NO NO NO NO NO NO NO NO YES YES YES Does following devices are checked 1 Computer In 2 2 Video In 3 S Video Connect the proper device which are not checked A A C Connect the CRT to the Monitor interface Does screen appear on the CRT Replace CD10M...

Страница 106: ...oes external speaker output the sound Replace CD10AU board Replace CD10AU board Replace CD10MA board Does volume control works Replace CD10MA board Does Mute button works Does Mute button works Re connect the CN402 on the CD10MA board Does internal speaker R L output the sound Replace speaker R L Does internal speaker R L output the sound Replace CD10AU board Does internal speaker R L output the s...

Страница 107: ...n works Does Source button works Replace Switch panel Does all button works Replace CD10MA board Does Blank button works Does Resize button works Does Volume button works Does Mute button works Does Tracking button works YES NO NO NO NO YES NO YES YES YES YES NO NO NO NO YES NO YES YES YES NO YES YES NO Go to Remote controller ...

Страница 108: ...t1 to 5 are works correctly Replace CD10MA board Replace batteries Does power ON OFF are available Exchange Remote controller Does power ON OFF are available Re connect CN900 901 on the CD10MA board Does power ON OFF are available Replace CD10RC board Does power ON OFF are available Replace CD10MA board Does power ON OFF are available Replace the cable between CD10MA toCD10RC board YES YES YES YES...

Страница 109: ...ble Mouse cable Serial cable Does Remote controller works correctly Does pointer button on the Remote controller works correctly Does Function assignment for Effect button 1 to 5 are available Does presentation and projector control functions are available with Remote controller YES YES YES YES YES YES NO NO NO NO NO NO Go to Others ELP communication kit II option is necessary Above option is not ...

Страница 110: ...Exhaust fan Cooling fan Air filter frame Dirt condition Suspect following defects Optical engine May cause with dirt condition on the light guide unit projection lens unit and light valve on the optical head unit Suspect following defects AC input Include power line transit or distortion Power supply unit CD10MA board Cable connection fail to make condition Overheat problem Image display problem L...

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