Epson EMP-8000 - XGA LCD Projector Service Manual Download Page 101

Page: 101 / 103

4-13

EMP-9000/8000

SEIKO EPSON

Revision:A

Others

Figure4-11

Start

Noise problem?

Suspect following defects.

Exhaust fan, inhale fan and fan on the power supply unit.

Power supply unit (Vibration noise from pulse transformer)

Suspect following defects.

Thermistor (LV, LAMP, PBS) or safety switch.

Exhaust fan, Inhale fan, Power supply unit fan.

Air filter (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

MA board

Cable connection (fail to make condition.)

Overheat problem?

Image display problem?

Low reproduced problem?

YES

Summary of Contents for EMP-8000 - XGA LCD Projector

Page 1: ...EMP 9000 8000 SXGA XGA Data Projector SERVICE MANUAL ...

Page 2: ...EMP 8000 9000 Revision A SEIKO EPSON ...

Page 3: ...er 2 Theory of operation 2 1 Hardware Configulation 2 2 2 1 1 Process Outline 2 3 2 1 2 Electrical System 2 4 2 1 3 Optical System Connections Optical Engine 2 4 2 2 Filter unit Safety switch 2 7 2 2 1 Filter unit circuit block 2 7 2 3 Power Supply Unit 2 8 2 3 1 Power supply unit circuit block 2 8 2 4 Ballast unit 2 11 2 5 Main Board Assy Unit 2 13 2 6 Driver Board Assy 2 19 2 7 AU Board Assembly...

Page 4: ...e 3 8 3 2 6 Projection Lens 3 8 3 2 7 Upper Case Unit 3 9 3 2 8 Main Board Assy Unit 3 11 3 2 9 IF unit 3 11 3 2 10 IF Panel Unit 3 13 3 2 11 Optical Engine 3 13 3 2 12 Power Supply Unit 3 16 3 2 13 Ballast Unit 3 16 3 2 14 Filter Unit 3 17 3 2 15 Thermistor LAMP 3 17 3 2 16 Safety Switch 3 18 Chapter 4 Troubleshooting 4 1 Before Starting Troubleshooting Procedures 4 2 4 1 1 Tools and Accessories ...

Page 5: ...e to radio and television reception TRADEMARK IBM and DOS V are the trademark or the registered trademark of International Business Machines Corporation Macintosh and Power Book are the registered trademarks of Apple Computer Inc Windows is the trademark of Microsoft Corporation EPSON is the trademark of SEIKO EPSON CORPORATION NOTICES 1 This document should not be reproduced in whole or in part w...

Page 6: ...sion A SEIKO EPSON Record of Revisions Memo Random Free area to memorize any important technical information here History Issued Date Alternation REV 0 1999 August 20 for Training only REV A 1999 September 8 Original Issued ...

Page 7: ...OSTATIC DISCHARGE Whenever doing any repair work on the product be sure to wear the wrist band and the elec trostatic mat with grounding When replacing any electric components Boards and Optical engine it is recommended to touch the electrostatic plastic bag of the component to the metallic part of the product once before take the component out from the plastic bag 2 LIMITATION OF PARTS Use only a...

Page 8: ...ment would like to be contacted to the below address Any technical information about amendments is occasionally available as the service bulletin SEIKO EPSON CORPORATION 4897 SHIMAUCHI MATSUMOTO SHI NAGANO KEN 390 8640 JAPAN ATTN Visual Device Customer Support Group ...

Page 9: ...Chapter 1 Product general ...

Page 10: ...ive Resizing 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 EMP LINK áV software that combines as a stan dard accessory of product ...

Page 11: ... Front side view Figure1 2 Operation panel Remote control receiver Foot adjust lever Front foot Lens cover Operation Panel Menu button Esc button Tracking button Enter button Keystone button Video buton HEMP button Power button Computer button A V Mute button Resize button Shift button Sync button ...

Page 12: ... A SEIKO EPSON Figure1 3 Interface panel Figure1 4 Rear side view BNC Monitor Out Audio Out Remote S Video L Audio R Computer1 L Audio2 R Audio1 Mouse Com1 2 Video Operation panel Remote control receiver Exhaust fan Power inlet ...

Page 13: ...0 8000 SEIKO EPSON Revision A 1 2 2 Inside view of main frame Figure1 5 Projection panel FUSE board Power supply unit Ballast unit Lens shift mechanical unit Main board assy unit Filter unit Safety switch IF unit ...

Page 14: ...EMP 9000 8000 1 6 Revision A SEIKO EPSON 1 2 3 Outside View of Remote Controller Figure1 6 Remote controller Front Back Inside of cover ...

Page 15: ...1 7 EMP 9000 8000 SEIKO EPSON Revision A 1 3 MAIN COMPORNENT Main board Assy unit Figure1 7 MA board AU board Assy Figure1 8 AU Board Assembly IF Unit Figure1 9 ...

Page 16: ...EMP 9000 8000 1 8 Revision A SEIKO EPSON Power Supply Unit Figure1 10 Ballast Unit Figure1 11 Fiter Unit Figure1 12 ...

Page 17: ...evision A Speaker L R Figure1 13 RC Receptor Board Back Front Figure1 14 Connector Board U Assembly Connector Board L Assembly Figure1 15 Ballast Unit Lamp Case Unit Upper case Connector board U Connector board L Speaker L Speaker R ...

Page 18: ...ase Lamp case unit Figure1 17 Optical Engine The unit that in one body of Driver board Assy FUSE board assembly Intake fan Optical head unit and Light guide unit Figure1 18 Safety switch Optical engine is difference parts Light guide unit FUSE board assembly Driver board Assy ens shift mechanical unit Optical engine is difference part ...

Page 19: ...1 11 EMP 9000 8000 SEIKO EPSON Revision A Figure1 19 Intake fan Projection panel ...

Page 20: ...talog spec EMP 8000 2200lm Catalog spec AUDIO FEATURES Average brightness uniformity Typ 85 Output for internal speaker Dynamic speaker 3W 8 x 2 speaker 3D stereo sound 50 18000Hz S N 85db Audio out Interface External speaker 3 5mm Stereo mini jack Internal speaker output is stopped when mini jack is plugged Output signal 0 to 500mvrms land imperdance 600É Audio interface L R x2 S Video Video Audi...

Page 21: ... Luminous 0 714Vp p Chrominous 0 28Vp p Interface type Min DIN 4pin S Video is prior to composite video Video IN Interface Composite video interface Input signal 1 0Vp p sync negative 75 Interface type RCA jack yellow TV signal type NTSC carrier frequency 3 58MHz 4 43MHz PAL carrier frequency 4 43MHz 3 58MHz SECAM carrier frequency 4 43MHz Auto identification Default MOUSE COM Serial Mouse or RS 2...

Page 22: ...er with resolution selector D sub 15pin HD type Macintosh monitor adaptor HD15pin Dsub15pin EMP Communication cable set Main cable DIN 13pin Multi CN x1 PS 2 Mouse cable Mini DIN 8pin Mini DIN 6pin x1 Serial Mouse cable Mini DIN 8pin D sub 9pin x1 Mac Mouse cable Mini DIN 8pin Mini DIN 4pin x1 USB Mouse cable D sub 9pin D sub 9pin x1 Mac Serial cable Mni DIN 8pin Mini DIN 8pin x1 Projector Softwar...

Page 23: ...tereo mini jack Pin Terminal Pin Terminal 1 Red video 9 None Pin is not exist 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 5 1 10 6 15 11 6 5 4 3 2 7 8 9 1 1 pin GND 2 pin Computer audio input L 3 pin Computer audio input R The oth...

Page 24: ...9 Reserved 2 G Out Green video 10 GND 3 B Out Blue video 11 Reserved 4 Reserved 12 Reserved 5 GND 13 H sync Horizontal sync 6 GND 14 V sync Vertial sync 7 GND 15 V sync 8 GND 1 6 9 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 5 6 10 11 15 4 2 3 1 5 6 1 2 6 pin GND 3 pin Y signal input 4 pin C signal input 5 pin Input detection ter...

Page 25: ...A Reserved TXD Reserved 4 Reserved YB Reserved READY Reserved 5 LEFT LEFT 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 ...

Page 26: ...EMP 9000 8000 1 18 Revision A SEIKO EPSON 1 5 8 Remote 3 5mm Stereo mini jack 6 5 4 3 2 7 8 9 1 1 6 pin GND 2 pin Repeater detection Signal 5 pin LED lanp ...

Page 27: ...Chapter 2 Theory of operation ...

Page 28: ...L Cable Assembly AU IN Speaker Power Supply Unit Ballast Unit Filter Unit Operation Panel Connector Board L Assy Connector BoardU Assy Thermistor RC Receptor Board Assembly Front Intake Fan Exhaust Fan RC Receptor Board Assembly Rear Thermistor LAMP Therm istor PBS UHE LAMP Light Guide Unit Adjust Optical Axis Focus Zoom Composite R G B FC Board Assembly Main board Assembly Unit IF Unit PP Knob Me...

Page 29: ...ight guide unit 4 The lights transmitted through the light valves will be combined the prism and projected through the projection lens unit 5 The audio signal is provided from AU board Assembly via Main board Assy unit from the IF unit and be output to speaker R L Circut process block Figure2 2 Optical Process block Figure2 3 Main board Assy unit Digital Analog A D Display Memory Display control A...

Page 30: ...lay control resiz ing etc Display data and timing signals generation condi tion lamp LED indicator display Audio signal control Remote controller operation panel control Mouse control Relay the DC power supply hook up BNC interface connec tor 2 Driver board Assy optical engine Display compensation data preservation Read out the dis play data Digital to analog coversion D A Light valve liq uid crys...

Page 31: ...ptical block Inside view of light guide unit Figure2 5 Inside of light guide unit Lamp inner housing Optical head Prism unit Figure2 6 FC board Optical Head Prism unit Lamp inner Housing installing location Projection Lens Unit Lens shift mechanical unit ...

Page 32: ...l engine Table 2 1Unit function UNIT NAME FUNCTION REMARKS LAMP INNER HOUSING Type EMPLP08 Include one Discharge Lamp UHE 220W as a light source FUSE board is mounted for new lamp UNIT detection LIGHT GUIDE UNIT Disperse the light from the light source and uniform by the multi lens Ultraviolet ray also eliminated by UV filter Disperse the light in three R G B factors with CDM filter condensor lens...

Page 33: ...the lamp unit installation department The safety switch shutdown the AC power supply when it becomes over heat condition Fuse F101 malfunction of Overcurrent condition with power supply unit or etc it blows the fuse EMI filter circuit Noise removal of the alternating current input AC interlock When remove the lamp cover unit the AC power soutput is shutdown To secure the safety operation at the la...

Page 34: ...e2 10 2 3 1 Power supply unit circuit block The Power supply unit includes the EMI filter circuit safety circuit the thermostat cooling fan sub power supply circuit and regulator circuit RC receptor board is not composed of the power supply unit Figure2 11 Power Supply Fan DC Output Input cable connected to Main board Assy unit Power Supply connector for Ballast AC input Connector EMI Filter Prima...

Page 35: ... DC switching circuit has feedback function with 7V output and reducing the fluctuation of output Adjustment of individual output voltage is not possible Cooling fan The heat that occurred with the power supply unit is radiated The fan bios 12V is supplied from CN201 of the power supply unit The sub power supply circuit 3 3R Always 3 3V be output irrespective of the ON OFF of the power supply if t...

Page 36: ...arks 12 3 3R Out Sub power supply 24 FANCL In Fan control 11 3 3R Out Sub power supply 23 PWON Main power supply ON OFF 10 3 3R Out Sub power supply 22 GND 9 7 Out 21 GND 8 7 Out 20 GND 7 7 Out 19 GND 6 12R Out Power down signal 18 GND 5 18 Out Fan control 17 GND 4 18 Out 16 GND 3 11 Out 22 GND 2 13 Out 15 GND 1 13 Out 14 GND 13 GND Ballast Output AC Input BLK WHT 12 11 10 9 8 7 6 5 4 3 2 1 24 23 ...

Page 37: ...BACT signal is doing the ON OFF of the ballast output Doing the modification the adjustment of the output voltage of the switching duty according to the feedback signal from the detec tion circuit Regulator circuit The voltage for the lamp of AC45 200V is generated Detection circuit Monitoring the regulator circuit and genarates the feedback sig nal of the output voltage stabilization and detects ...

Page 38: ...EMP 9000 8000 2 12 Revision A SEIKO EPSON 2 Input output specification Voltage Rating power Input 300 400VDC 260W max 3W At the time of the standby output AC45 200V 220W 4 ...

Page 39: ...ast power supply control receptor board interface con trol and etc The Main board Assy unit controls everything except to generate the display signal and audio output The Main board Assy unit is available as a unit for the service parts Outside View and connection of the Main board Assy unit for EMP 9000 are shown below Caution There are no compatibility with the Main board Assy unit for EMP 9000 ...

Page 40: ...EMP 9000 8000 2 14 Revision A SEIKO EPSON 1 Main board Assy unit circuit block Figure2 17 Main board circuit block EMP 9000 8000 ...

Page 41: ...C Lamp control The function that controls ballast and do the illumination control of the lamp LED control The function that controls various kinds of Indicator of the operation temperature lamps Cooling control The function that measures temperature and control the turn of the fan by the temperature condition Power supply control The power supply control function corresponding to low consumption e...

Page 42: ...vice Video Amp HFA1405IB The analogue RGB signal that was input from PC is amplified and output to the PC OUT terminal Control unit Main device Main CPU MB91101PFV G BND R Decode IC EV9805AA Do the projector control remote control mouse control cooling control lamp control LED control PC serial interface control 3 Process Outline After the power on the reset signal for I O controller IC1108 of the...

Page 43: ... Mouse Com interface is multi interface Mouse RS 232C used at link set operations It is used following 1 3 operations are given 1 When the remote controller use as the wireless remote controller of the computer con nected 2 When option remote control receiver to the Remote interface and use as the wireless remote controller of the computer connected 3 When link set DOS V Mac 98 are used to adjust ...

Page 44: ...able Main cable EMP 9000 8000 EMP 9000 8000 Macintosh MAC serial cable Printer or modem port ADB port It is necessary for link set function Select one of them according tothemousetype Both serial interface has same function COM port RS 232C for serial mouse MAC mouse cable male 5 9 1 J1 13 4 12 8 PINOUT CONFIGURATION J1 J2 J3 J4 12 1 1 2 2 3 3 4 4 5 5 6 7 7 6 8 4 13 9 5 6 9 2 5 8 3 3 10 4 1 11 6 2...

Page 45: ...ight valve driver signals and another is for controlling the display image by electrical correc tion data The Driver board Assy is a parts of a optical engine and it is not the object of service parts Outside View of the Driver board Assy are shown below Caution There are no compatibility with the Driver board Assy for EMP 9000 and it for EMP 8000 though the outside view of each boards are similar...

Page 46: ... JGC LKMC 3 JJ JPQ2RJ RP MJ MPQ2SJ SP Jointed to Light valve Analog T8 M6S U8 M6S V8 M6S Analog T8 J6R U8 J6R V8 J6R T H W N X 6 T 8 N X 6 Y ZK T W H 8 6 U W H 8 6 V W H 8 L 6JL J L 6JL J L 6JL J L 6JL J L 6JL J L 6JL J Y _2Y 2 2a 9_ bbc2d Y L JL J L JL J JL J L AJRC e C eJfC 8 J OX HWJ C OX V H W N X 6 V 8 N X 6 Y ZK U H W N X 6 U 8 N X 6 Y ZK JJ J g H W 0 g 0 E h 0 i i 8 L g f JL g W g g j H RJ ...

Page 47: ...to the correction circuit The timing signals and analog video signals output from the correction circuit are done electric correction by DAC for best display quality before output The RGB video bias circuit generate standard voltage for video amplifier circuit based on control signal output from driver circuit Each shift register generates the display data of 24 bit from 4 analog signals The LCCOM...

Page 48: ...itch on the remote controller is pressed the power amplifier halts the output Each audio signal is supplied from the audio controller on the IF panel unit to AU board Assembly The internal dynamic speaker L R is 8 3w The adjustment of the volume etc is controlled with the audio controller on the IF panel unit Figure2 23 AU board Connect to Conncter Board U CN203 Regurator 13V R IN L IN SMUTE CN204...

Page 49: ...hip installation there are no compatibility of IF panel unit with EMP 9000 s and EMP8000 s CN100 PC IN CN101 PC OUT CN202 CN201 CN300 CN300 CN302 J200 CN200 CN301 J201 Cable Assy AU IN Connect to Main bord Assy unit CN1004 Cable Assy PC SEL Connect to Mainboard Assy unit CN4 Cable Assy coaxial PC OUT Connect to Main board Assy unit CN3 Cable Assy coaxial PC IN Connect to Main board Assy unit CN2 C...

Page 50: ...ed by AMP VOL and LINE OUT VOL The adjustment step is 32 steps Initial value is step15 6 Voice mute is performed when MUTE key was pushed CN100 RGB INPUT CN101 RGB OUTPUT CN201 PC AUDIO 1 IN J200 PC AUDIO 2 IN J201 S AUDIO CN202 AUDIO OUT CN203 VIDEO AUDIO CN200 S VIDEO CN300 CN301 CN302 PC IN Monitor out Audio 1 L Audio2 R L Audio R Audio out Video L Audio R S Video Mouse Com1 Mouse Com2 Remote N...

Page 51: ...ide adjustment CENTER Boost of the human voice band variable width of 1 2 3 4 5 6 variable width of off 1 2 3 4 5 6 CENTER is adjustable when the SPACE is selected the value of 1 to 6 CENTER adjustment is invalid when the SPACE is OFF 8 DDC control Main device EEPROM 24LCS21T The function corresponding to the DDC inquiry from PC ...

Page 52: ...xed to the back of the upper case unit with screws Cable Assy UP case is connected from AU board assembly CN203 The spring point contacts the land pattern of connector board L Figure2 26 2 Connector Board L Assy It is fixed to the lamp cover unit with screws and it s land pattern contacts with the spring point of connector board U Assembly The exhaust fan and the receptor board assembly are con ne...

Page 53: ...or board U Assy AU board assembly Exhaust fan CN203 Rear RC Receptor board Assy CN100 CN101 Connector board L Assembly CN101 CN102 CN 100 Cable Assy UP case Cable Assy RCR RC FAN Inside Lamp cover unit Inside Upper case unit Spring point of connecter Spring point Spring point ...

Page 54: ...eval decoder and be converted to 16 bit parallel data 1 The Main board Assy unit 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 Driver board Assy via the Main board Assy unit performs the display control Freeze Blank etc 3 The serial signal send to the AU board ...

Page 55: ... Audio Out terminal on theIF unit the built in speakers are disabled Figure2 31 Speaker unit Figure2 32 Speaker control circuit block The audio input signals from computers or an audio device are first amplified by the control circuit on the AU board then are output to the speakers Detecting the connection to an exter nal speaker Audio Out the Main board Assy unit only determines the use of the bu...

Page 56: ...ure2 33 Light guide unit 1 Lens Array Lens Array A B Dispersion of the light from the lamp inner housing by the Lens Array lens array A B roughly uniform the brightness The UV filter coated on the surface of the multi lens array eliminates ultraviolet rays to reduce the light valve s deterioration The light dispersed through the Lens Array A B is reuniformed with PBS lens 2 CDM GDM CDM Mirror Cond...

Page 57: ... 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 light valve G 4 Condenser Lens The condenser lens collects the light and provide to the next process 5 Condenser Lens R G B To collect the lights dispersed into each polarization plate 6 Adjusting screws Adjusting the PBS lens position to obtain the ...

Page 58: ... above In this device the standard lamp life is 2000 hours If you notice the lamp bright ness reduces we recommend you to replace the lamp inner housing even before 2000 hours The total running hour of the light source lamp is written in EEPROM IC1107 on the Main board Assy unit If the lamp is reaching or has reached the end of its life CPU IC1101 out puts some signals to control the following 1 W...

Page 59: ...iver board assembly pulls up LSTAT signal line through the FC board and the fuse on the FUSE board When LSTAT shows high CPU is reset the lamp total hour in EEPROM IC1107 to zero After word I O decoder on the Main board Assy unit output low level and connects LSTAT signal line to the ground through a resistance Consequently the fuse on the FUSE board is blown the lamp total hour in EEPROM IC1107 w...

Page 60: ...rs Blink in orange Clear the EE PROM with lamp replacement After the power on Exchange lamp message appear on the screen Out of order Lamp off Blink in red Lamp goes off Number of turn on times Increment by one Ensure with information of MENU display Lamp total running hours with EMP 5500 Keep total running hours with EMP 7500 Ensure with information of MENU display Lamp exchange times Keep exchan...

Page 61: ... this filter END START Wait 30sec Lamp off Error handling Lamp off LPCTL signal off Driver board Assy initialize Main board Assy unit initialize Lamp on LPCTL signal on Rotate the fan Terminate the following lamp on sequence Ballast power supply start LPSTC signal Lamp abnormal OFF Wait 500ms Wait 4Sec Power ON Lamp on Three times N Y N Y N Y Overheat or Sensor error N Y ...

Page 62: ... on the if unit A AC power off in opening the lamp cover unit Safety switch On the lamp outer housing Thermal switch Overheat protection for lamp inner housing area AC power off LAMP thermistor On the lamp outer housing Overheat protection for light source lamp area PBS thermistor Multilens department of the light guide unit Overheat protection for light guide unit area LV thermistor On the prism ...

Page 63: ...he lamp cover unit For replacing the lamp inner housing you should open the lamp cover unit For this rea son the switch is installed to protect you from heat injury Figure2 38 The interlock switch is installed on the AC power source line Consequently if the lamp cover unit is removed the AC power source is shut off and you can not turn on the power Interlock Switch ...

Page 64: ...2 14 3 Thermistor and temperature sensor operation CPU on the Main board Assy unit detects the temperature resistance with three thermistors and five temperature sensors in each 100ms Five of temperature sensors are placed on the Main board Assy Unit and detect the temperature of major circuit three of thermistors are placed in the main body and mainly detect the temperature of optical block area ...

Page 65: ...st power lamp power when the temperature exceed predefined level 2 LV thermistor LV thermistor is mounted with screw on the top of light valves When the cooling function is not enough because of dart condition with air filter or prism duct CPU on the Main board Assy unit output the warning indication with temperature indicator or tums off ballast power lamp power in order to protect the damage of ...

Page 66: ...ent the cir cuit malfunction or damage which will cause over heat condition Mainly lamp inner housing and power supply unit produce the heat and increase the temper ature Figure2 41 Exhaust fan Figure2 42 Power supply unit fan Figure2 43 Intake fan Power supply unit fan Intake fan1 Bottom of light guide unit Intake fan2 Top of light guide unit ...

Page 67: ...d transistor circuit according to the fan control signal from CPU on the Main board Assy unit Intake fan1 2 has three state stop slow fast Exhaust fan has five state stop slow midium slow midium fast fast Power supply fans is provided drive bias which produced on the power supply unit Intake Fan FCTL01 1 Slow 0 Fast FCTL00 1 Run 0 Stop FRS1 Intake fan2 1 Run 0 Stop FRS0 Intake fan1 1 Run 0 Stop Ex...

Page 68: ...and Exhaust fan then shut down the fan regulator when the ther mistor detect the below of Slow level or temperature sensor detect the below of midiun low Lamp on Befor 0 5 second start up the intake fan and exhaust fan for lamp on After the lamp on both fan operation are controlledaccoording to the thermistor and temperature sensor Refer to the paragraph 2 14 for detail Cool down After the lamp Fa...

Page 69: ...link 1 OFF Blink 1 Blink 1 OFF OFF Warning for lamp life during warm up Blink 1 Blink 1 Blink 1 Blink 1 OFF OFF Warning for lamp life during cool down ON OFF Blink 1 Blink 1 Blink 1 Blink 1 Warning for lamp life and overheat during lamp on Blink 1 OFF Blink 1 Blink 1 Blink 1 Blink 1 Warning for lamp life and overheat during warm up Blink 1 Blink 1 Blink 1 Blink 1 Blink 1 Blink 1 Warning for lamp l...

Page 70: ...2 44 Revision A SEIKO EPSON 2 17 Operation Panel Upper Case Unit The operation panel includes the board with 15 switches and is connected to the connector CN1403 on the Main board Assy unit Figure2 46 Operation Panel ...

Page 71: ...Chapter 3 Disassembly and assembly ...

Page 72: ... order the maintenance parts or request our repair service perform works by the units listed in the folowing table Do not disassemble the Optical engine Do not exchange any unit on the optical engine to the others The optical components listed in the next page are required the mechanical alignment or elec trical correction in the control circuit writing the image adjustment data Table 3 1 Tool req...

Page 73: ...n the display screen therefore clear image will nit be made Caution Do not disassemble the light guide unit If you remove the upper guide cover from the unit the alignment of lenses or mirrors may be unintentionally changed and also dust may stick to the unit Since Optical engine on the EMP 9000 8000 requires very precise adjustment it can not be adjusted in the field Electrical corrections DR boa...

Page 74: ...d air filters is likely to migrate and contaminate the light valves R G and B which are the heart of the display mechanism thus deteriorating the display quality Accordingly before reassembling check the dust inside of the main unit and if necessary clean them with a vacuum cleaner The light valves R G and B and circuit board assemblies are highly sensitive to static electric ity When you remove a...

Page 75: ... flow chart Figure3 1 Disassembly flow chart START Lamp Cover Unit Front Case Upper Case Unit Air Filter RC Receptor Board Assmbly Connector Board L Assy Exhaust Fan Fan Guard Lamp Inner Housing IF Panel Unit IF Unit Projection Lens Zoom Ling Focus Ling Speaker L Speaker R AU Board Assembly Connector Board U Assembly Operation Panel Main Board Assy Unit Optical Engine Intake Fan Guard Safety Switc...

Page 76: ...from the back of the main frame Figure3 2 2 Remove RC Receptor Board Assembly and Connector Board L Assy on the Lamp Cover Unit Each is fixed in a screw Screw CBP tite M3x8 individually Figure3 3 3 Remove Four screws Screw CBP tite M4x35 fixing the Exhaust Fan then detach the Fan Gard and Exhaust Fan Connector board L Assy RC receptor board assmbly ...

Page 77: ...ing the lever Figure3 4 Caution Pay attention to handling because the Lamp might be superheating Immediately after lamp is used When installing the Lamp Inner Housing take care not to touch the lamp s reflector with a hand to prevent the reflector flom being contaminated 3 2 4 Air Filter 1 Slide Fan cover under the main frame to direction of the arrow Figure3 5 ...

Page 78: ...se 2 Remove the tub in the upper side of Front Case on the indentation of Upper Case Unit then detach the Front Case Figure3 6 3 2 6 Projection Lens 1 Remove four screws Screw HSH M4x8 fixing the Projection Lens by using exclusive use 6 corner wrench then take out Projection Lens from Optical Engine Figure3 7 Screw Screw ...

Page 79: ... Take care not to touch the lens surface of the Projection Lens with a hand to prevent their surface from being contaminated When installing the Projection Lens take care Screw and label becomes the upper side 3 2 7 Upper Case Unit 1 Remove four screws fixing the Upper Case Unit then open the Upper Case Unit to direction of the arrow Figure3 9 Zoom Ling Focus Ling ...

Page 80: ...connectors on the Main Board Assy Unit 4 Detach the Speaker L R from Upper Case Unit Each is fixed in the two screws Screw CC M3x6 5 Detach the Connector Board U Fixing Plate on the Upper Case Unit and detach the Con nector Board U on the Connector Board U Fixing Plate Each is fixed in a screws Screw CC M3x6 6 Remove a screws Scerw CP M3x6 fixing the Operation Panel then detach the Operation Panel...

Page 81: ...M3x6 fixing the Main Board Assy Unit 2 Disconnect all of cable connectors on the Main Board Assy Unit 3 Detach the Main Board Assy Unit Figure3 11 Caution Refer to page 2 14 about cable splicing figure of Main Board Assy Unit 3 2 9 IF unit 1 Disconnect all of cable connectors on the Driver Board Assy ...

Page 82: ...ourteen screws fixing the IF Fixing Plate and remove the BNC Reinforcement Plate on the IF Fixing Plate Figure3 13 4 Separate IF Fixing Plate and IF Circuit Assy Caution When installing the IF unit refer to 2 8 and confirm cable is wired correctly Screw HSH Screw CBP tite M3x8 Screw CP M3x6 Screw CBP tite M3x8 BNC Fixing Plate IF Fixing Plate ...

Page 83: ...r etc between IF Panel Unit and IF Unit then remove the notch of IF Panel Unit 2 Remove the IF Panel Unit Figure3 14 3 2 11 Optical Engine 1 Remove two screws Screw CP S P1 M3x8 fixing the Lamp Connector Holder then detach the Lamp Connector Holder Figure3 15 IF Panel Unit notch notch ...

Page 84: ... Revision A SEIKO EPSON 2 Disconnect two wire cables conneced to the Safety Switch Figure3 16 3 Remove five screws fixing the Optical Engine then detach the Optical Engine on the Lower Case Unit Figure3 17 Safety Switch ...

Page 85: ...ngine Figure3 19 Caution Projection Lens Unit can remove when it removed Front Case Refer to about Disassembly Procedure of Projection Lens Unit When installing the Intake Fan A please confirm Intake Fan A attached to a correct direction Side that attaches and seal have attached and side that has cable is the outside When installing the Lamp Connector Holder please confirm Lamp Connector Holder at...

Page 86: ...he Power Supply Unit Figure3 20 3 2 13 Ballast Unit 1 Disconnect cable conect on the Power Supply Unit and Safety Swich 2 Remove two screws Screw CC M3x6 fixing the Ballast Unit then detach the Ballast Unit 3 Remove a screw Screw CBP tite M3x8 fixing the RC Receptor Board Assy then detach the RC Receptor Board Assy on the Balast Unit Figure3 21 Ballast Unit Power Supply Unit RC receptor board Ball...

Page 87: ... screws Screw CC M3x6 fixing the Filter Unit then detach the Filter Unit on the Lower Case Unit Figure3 22 3 2 15 Thermistor LAMP 1 Remove a screw Screw CBP tite M3x8 fixing the Thermistor OA LAMP then detach the Thermistor LAMP on the Optical Engine Figure3 23 LAMP Thermistor ...

Page 88: ...sion A SEIKO EPSON 3 2 16 Safety Switch 1 Disconnect two wire cables conneced to the Safety Switch 2 Remove two screws Screw CP S P1 M3x6 fixing the Safety switch then detach the Safety Switch on the Optical Engine Figure3 24 ...

Page 89: ...Chapter 4 Troubleshooting ...

Page 90: ... replaced during troubleshooting such as board cases plates and screws refer to the parts list listed in an appendix of this manual Optical engine consist from Light guide unit Optical head unit Projection lens unit Prism unit and Driver board Assembly is the one maintenance unit Do not separate any unit from opti cal engine There are no compatibility with the Main Board Assy Unit and the optical ...

Page 91: ...heck out the any damage on the cover area Ensure internal cable connections Remove the upper case unit Reconnect the cable if necessary 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 monitor Ensure audio output to the internal speaker and external speaker Connect ext...

Page 92: ...ing and zoom ring are adjustable move it in easily Dirt condition is not presented on the lens surface Any transformation or crack are not presented Air filter frame is looked on the lower case unit 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 fra...

Page 93: ... the MA board to CN202 203 on the Power supply unit B CN1003 on the MA board to CP501 on the Ballast unit A Power supply unit to CP1 on the Ballast unit CN1004 on the MA board to CN100 on the Connector board U CN100 on the Connector board L to RC receptor board CN101 on the Connector board L to Exhaust fan CN1303 on the MA board CN1302 on the MA board CN1400 on the MA board Intake fan1 CN1400 on t...

Page 94: ...g the fast on tab on thesafetyswitch Measure the safety switch resistance Replace AC power Filter unit A Filter unit A Press Power button by the Remote controller Operation indicator becomes lights in green Replace Vacuum fan Does exhaust fan move Replace applicable power supply unit Replace Exhaust fan Dose Exhaust fan move Safety switch resistance is nearly zero ohm Fixed Go to start Go to start...

Page 95: ...tor become blink in orange Lamp indicator is it turn off Replace MA board Replace MA board Warning for lamp life Press power button Off Operation indicator becomes blink in orange Wait 60 sec Operation indicator becomes lights in orange Operation indicator goes off Replace MA board Cool down Operation Lamp Temperature Overheat condition Turn off the power and cool down enough Fan or thermistors pr...

Page 96: ...e Start Does screen appear Lamp indicator becomes blink in red Replace Lamp inner housing Does light source lamp on Replace MA board Reconnect the cable connector on the CN1003 MA board to Ballast unit Does light source lamp on Replace Ballast unit A YES NO NO NO YES NO YES NO YES NO Go to next page NO YES Lamp indicator becomes lights or blink in red Replace the following thermistors 1 PBS 2 LV 3...

Page 97: ...ace computer cable Does picture quality is good Take the adjustment shown in the table 1 page 4 7 Does screen appear YES NO YES YES YES YES YES NO YES NO YES NO NO NO NO NO NO NO YES YES Does following devices are checked Video In S Video In Connect the proper device which are not checked A A C Connect the CRT to the Computer Out interface Does screen appear on the CRT Replace MA board Does screen...

Page 98: ...nect the external speaker to the Audio out Does external speaker output the sound Replace AU board Replace AU board Replace MA board Does volume control works Replace MA board Does Mute button works Does Mute button works Re connect the CN201 202 on the AU board Does internal speaker R L output the sound Replace speaker R L Does internal speaker R L output the sound Replace AU board Does internal ...

Page 99: ...lace MA board Does Help button works Does Resize button works Does Volume button works Does AV Mute button works Does Tracking button works Does Video button Works Does ESC button works Does Key stone button works Does Shift Volume button works YES NO NO NO NO YES NO YES YES YES YES NO NO NO NO YES YES YES NO YES YES YES YES YES NO NO NO NO NO Go to Remote controller Reconnect cable connector on t...

Page 100: ...te controller Does all switches are works correctly Exchange remote controller Does all switches are works correctly Replace MA board Replace batteries Does power ON OFF are available Exchange Remote controller Does power ON OFF are available Re connect RC receptor cable Does power ON OFF are available Replace RC receptor Does power ON OFF are available Replace MA board Does power ON OFF are avail...

Page 101: ... safety switch Exhaust fan Inhale fan Power supply unit fan Air filter 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 MA board Cable connection fail to make condition Overheat probl...

Page 102: ...EMP 9000 8000 4 14 Revision A SEIKO EPSON ...

Page 103: ...on outline 2 15 Process Outline 2 16 Main unit specifications 1 12 Lamp Inner Housing 2 32 Circuit block 2 33 Lamp on sequence 2 35 Light Guide Unit 2 30 Operation Panel 2 44 Optical Engine 1 10 Optical system block 2 2 Power Supply Unit 2 8 Circuit block 2 8 Outline of function 2 9 Process Outline Circut process block 2 3 Optical Process block 2 3 Projection image size 1 2 Protection From Acciden...

Search results

Summary of Contents for EMP-8000 - XGA LCD Projector

Reviews:

Brands by name

Popular brands

Epson EMP-8000 - XGA LCD Projector, Service Manual

Search results

Summary of Contents for EMP-8000 - XGA LCD Projector

Reviews:

Brands by name

Popular brands