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Epson EMP-1825 Service Manual
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Epson EMP-1825 Service Manual

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Data Projector
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Summary of Contents for Epson EMP-1825

  • Page 1 Data Projector Service Manual EMP-1825/ EMP-1815/ EMP-1810...
  • Page 2 This Service Manual describes basic functions, theory of electrical and mechanical operations, mainte- nance and repair procedures of the EMP-1825/1815/1810. This information is intended for the experi- enced repair technicians, and attention should be given to the precautions on the preceding pages.

  • Page 3: Revision History

    Be sure to always keep this manual up to date. History Date Detail of change First Release Rev.A 2006.12.27 Rev.B 2007.4.13 P4-17 Change in SW cable forming Rev.C 2007.11.30 All pages Additional information added for EMP-1825. SEIKO EPSON Revision:C...
  • Page 4 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL IMPORTANT PRECAUTIONS IN SAFETY AND MAINTENANCE PER- FORMANCE Here describes the important points to keep in mind in repair and maintenance performance. Symbols To prevent injury to the repair technicians and to protect the devices, the categorized safety instructions are provided in this manual with the symbols below.
  • Page 5 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL Safety Instructions The precautionary measures itemized below should be fully understood when performing repair and maintenance procedures. When disassembling/assembling, be sure to turn off the power switch and pull out the power cable from the projector beforehand. Never touch the current-carrying part or high temperature section during a test oper- ation, signal measurement or any other situations that is necessary to perform the repair/maintenance work with the power turned on and the cover removed.
  • Page 6 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL Never use or replace with any service parts that is not specified by EPSON. Be sure to perform the repair/maintenance work on the even and stable work bench to prevent the product from dropping down or mal-operation due to the improper setting of the product.

  • Page 7: Table Of Contents

    3.3.8 Lens Shutter’s Operation Check ..........3-18 3.3.9 Control Panel’s Operation Check ..........3-19 3.3.10 RC & Projector’s Operation Check..........3-20 3.3.11 Wireless/Wired LAN’s Operation Check (EMP-1825/1815 only). 3-21 Chapter 4 Disassembly/Assembly 4.1 Overview ....................4-2 4.1.1 Precautions ................... 4-2 4.1.2...
  • Page 8 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 4.4 Removing the Engine/Boards ..............4-20 4.4.1 Removing the Optical Engine and MAB (1) (MA Board Assy.) ... 4-20 4.4.2 Removing the Inner Exhaust Duct B/TH Board Assy....4-40 4.4.3 Removing the Optical Engine and MAB (2) (Optical Engine)..4-42 4.5 Removing Other Main Parts..............

  • Page 9: Chapter 1 Product Specifications

    Chapter 1 Product Specifications...

  • Page 10: Product Features

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 1.1 Product Features The EMP-1825/1815/1810 is a portable data projector in a compact body and with the follow- ing features. 1.1.1 Features of the Projector EMP-1825/1815/1810 Common Features Quick Setup This feature corrects distortion in the projected image by a simple one-touch operation.

  • Page 11: Specifications

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 1.2 Specifications MODEL EMP-1825/1815 EMP-1810 Specification Size 0.8-inch with MLA of main parts Pixel number 786,432 dots (1024 x 768) x 3 Native Resolution Aspect ratio Projection Type Manual zoom / Manual focus Lens Zoom ratio 1-1.6 Lamp...

  • Page 12: External Views

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 1.3 External Views 78.1 13.8 137.8 181.1 11.9 56.5 33.2 34.4 21.4 29.1 61.6 M4x9-3 Unit: mm Figure 1-1. External Dimensions (mm) SEIKO EPSON Revision:C...
  • Page 13 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 3.07 0.54 5.43 7.13 1.57 4.61 0.47 4.69 0.71 2.22 13.6 1.31 1.35 0.84 1.15 3.54 1.97 4.53 2.43 2.44 M4x9-3 Unit: inch Figure 1-2. External Dimensions (inch) SEIKO EPSON Revision:C...

  • Page 14: Dimensions For Ceiling Mount

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 1.4 Dimensions for Ceiling Mount 26.5 100.5 141.5 63.5 153.5 191.5 Unit: mm Figure 1-3. Dimensions for Ceiling Mount (cm) SEIKO EPSON Revision:C...
  • Page 15 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 1.04 3.15 3.96 5.57 4.61 5.51 6.04 7.54 Unit: inch Figure 1-4. Dimensions for Ceiling Mount (inch) SEIKO EPSON Revision:C...

  • Page 16: Chapter 2 Theory Of Operation

    Chapter 2 Theory of Operation...

  • Page 17: Internal Components

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 2.1 Internal Components The main components that make up the projecter are shown in the figure below. EMP-1825/1815 Upper Case Wireless LAN Control Panel MA Board Assy. IM Board Assy. Lamp Unit Optical Engine Exhaust Fan TH Board...

  • Page 18: Hardware Overview

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 2.2 Hardware Overview The hardware of this projector consists of the optical block and the electrical circuit components. The overview of the hardware and functions is shown below. Wireless LAN USB Board IS Board IM Board Module Photo...

  • Page 19: Electrical Circuit Components

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 2.2.1 Electrical Circuit Components The components and their functions are explained below. Component name Function The circuit board that controls the whole system and functions of the projector. The main functions are listed below. • Degitally processes the input data from the external devices.
  • Page 20 CN1306 Lamp Fan CN1302 Intake Fan A CN1300 TH Board CN1201 Lamp Lid Detection SW CN1900 CN2100 CN1304 EX Fan IM Board CN502 (EMP-1825/1815 only) CN2000 CN1307 PBS Fan RC Board Figure 2-3. Control Circuit Connecting Diagram SEIKO EPSON Revision:C...

  • Page 21: Optical Engine

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 2.2.2 Optical Engine The Optical Engine consists of the Lamp Unit, the Light Guide Unit, the POP (Panel-on- Prism) Unit, and the projection lens. POP Assembly (Prism Unit + L/V(R/G/B)) Figure 2-4. Optical Engine Component Function/Other Name Lamp Unit An UHE-210W high-intensity discharge lamp is used as the light source.

  • Page 22: Temperature Control

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 2.3 Temperature Control The internal temperature of this projector is monitored by the sensors (the Lamp thermistor, L/ V thermistor) in order to protect the projector from internal overheat, which may cause unsafe state or damage to the projector. The fans’ revolutions are controled according to the detected temperature data.

  • Page 23: Chapter 3 Troubleshooting

    Chapter 3 Troubleshooting...

  • Page 24: Before Carrying Out Troubleshooting

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 3.1 Before Carrying Out Troubleshooting • If repairs involving the replacement of parts or components have been carried out, always be sure to re-check whether the replacement parts themselves are operating correctly or not in order to determine whether the problem is the result of something such as a loose connec- tor.

  • Page 25: Basic Information On Troubleshooting

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 3.2 Basic Information on Troubleshooting This section describes basic information needed when executing the troubleshooting. 3.2.1 LED Indicators The control panel has three LEDs that indicate the operating status of the projector. Power indicator Lamp indicator Temp indicator...
  • Page 26 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL Table 3-2. LED Indicator Status (Error) Projector Indicator Status Problem and Remedy Status [Status] Abnormality is detected from any of the fans or the sensors mounted on the projector. (Fan’s abnormality: irregular revolu- tion/disconnection, Sensor’s abnormality: irregular value...
  • Page 27 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL Lamp or Temp indicator flashes orange: Warning Blink Varies according to the projector status Table 3-3. LED Indicator Status (Warning) Projector Indicator Status Problem and Remedy Status (This is not an abnormality. However, if the temperature rises too high again, projection stops automatically.) Orange •...

  • Page 28: Cable Connection And Projector's Status

    CN2000 CN1307 CN1205 Figure 3-2 Connectors on the MA board Table 3-4. Mal-connection and the Projector’s Status Connection (Common to EMP-1825/1815/1810) Status MA board Connected to The power can turn on and the projection starts. But the CN1900 Optical Engine (L/V(R)) projected image is all red or magenta (with a red frame).
  • Page 29 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL Table 3-4. Mal-connection and the Projector’s Status The power can turn on and the projection starts, but instantly the projector changes to the Lamp Error mode. CN1201 Lamp Lid Detection SW (refer to 3.2.1 "LED Indicators" (p. 3)) The power turns off after a certain period of cooling.
  • Page 30 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL Table 3-4. Mal-connection and the Projector’s Status Connection (EMP-1825/1815 only) Status MA board Connected to CN502 IM board The power can turn on and the projection starts nor- mally. On the bottom left, the message that EasyMP is...

  • Page 31: Troubleshooting

    USB mouse's Operation Check USB Mouse Check the operation of USB mouse through USB interface. Wireless/Wired LAN's Operation Check Wireless/Wired LAN Check the operation between the projector (EMP-1825/1815 only) and the computer on each LAN. Flowchart 3-1 Basic Checking Flowchart SEIKO EPSON Revision:C...

  • Page 32: Abnormality Check

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 3.3.2 Abnormality Check START Any abnormal noises? Check the fans for any foreign objects around them. The cause might be a malfunction of the power supply unit (pulse transformer vibration, etc.). Overheated? Check the thermistors and Safety Switch for malfunction.

  • Page 33: Exterior Check

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 3.3.3 Exterior Check START Any damage/deformation/cracking due to external forces? Fixed to Lower Case correctly? Upper Case Any foreign object/dirt on IR receiver? Any foreign object/dirt on the vents? Fixed to Upper Case correctly? Lens Shutter Work smoothly?

  • Page 34: Connection Check

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 3.3.4 Connection Check Before starting the checking work, be sure to turn off the power and detach the C A U T I O N AC cable. (refer to 3.2.2 "Cable Connection and Projector’s Status" (p. Start Remove...
  • Page 35 P/S Fan MA board CN1305 Lamp Lid MA board CN1201 Detection SW Lamp Fan MA board CN1306 MA board CN2400 Speaker (EMP-1825/1815's case) MA board CN502 IM board (EMP-1810p's case Remove IS board MAboard MA board CN500 IS board IM board CN1300...

  • Page 36: Power On/Off & Initialization Check

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 3.3.5 Power ON/OFF & Initialization Check Start Connect AC cable 1.When pressing [Power] button on Control Panel, does indicator flash green, then light green? 2.Does the lamp illuminate? 3.Does indicator flash orange for approx. 2 seconds, then light orange? 1.

  • Page 37: Image Display & Quality Check

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 3.3.6 Image Display & Quality Check The image quality can also be affected by condensation or by a dirty lens. If C A U T I O N condensation forms, the problem will correct itself naturally if the projector is left to stand for a while.
  • Page 38 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL From previous page 1. Clean Projection Is the image vivid? Lens. 2. Clean the periphery Connect PC to the of L/V. computer terminal, and project an image. If the image is not vivid enough, apply the remedy from the top (1). If it does not work, go on to the next remedy.

  • Page 39: Audio I/O's Check

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 3.3.7 Audio I/O’s Check Start 1. Input PC input to audio I/F. 2. Press [Source Search] button and switch to the corresponding souce. 3. Output sound from the Speaker. 1. Re-connect MA board CN2400 correctly. 1. Does the sound output from Speaker? 2.

  • Page 40: Lens Shutter's Operation Check

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 3.3.8 Lens Shutter’s Operation Check Start 1. Replace the corresponding cable. Does AV Mute function start/stop, when closing/opening the shutter? 2. Replace Photo Interrupter. 3. Replace Optical Engine and MAB set. If theAV Mute does not work correctly, apply the remedy from the top (1).

  • Page 41: Control Panel's Operation Check

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 3.3.9 Control Panel’s Operation Check Start 1. Does pressing [Power] button turn the power on/off? 2. Does pressing [Menu] button display the menu window? 3. Does pressing [Source Search] button change input sources? 4. Does pressing [Help] button display the help window? 5.

  • Page 42: Rc & Projector's Operation Check

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 3.3.10 RC & Projector’s Operation Check Start 1. By pressing [Power] button on Remote Controller, Is turning the power on/off effective ? 2. Do all the buttons work properly? 3. Is the control effective approx. 6m away from the front/back of the projector? 1.

  • Page 43: Wireless/Wired Lan's Operation Check (Emp-1825/1815 Only)

    Board Assy.*3 /CF Slot Assy.*3/USB Board Assy.*3" (p. 29) 4.4.1 "Removing the Optical Engine and MAB (1) (MA Board Assy.)" (p. 20) 4.4.3 "Removing the Optical Engine and MAB (2) (Optical Engine)" (p. 42) Flowchart 3-13 Wireless/Wired LAN’s Operation Check (EMP-1825/1815 only) SEIKO EPSON 3-21 Revision:C...

  • Page 44: Chapter 4 Disassembly/Assembly

    Chapter 4 Disassembly/Assembly...

  • Page 45: Overview

    CONFIDENTIAL 4.1 Overview This chapter describes the procedures for disassembling and assembling the main components of the EMP-1825/1815/1810 projector. Unless otherwise specified, reassembly is the reverse of the disassembly procedure. Read the precautions described in the next section before starting.

  • Page 46: Precautions Which Must Be Taken When Servicing

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 4.1.2 Precautions which must be taken when servicing The precautions given below must be always observed whenever you disassemble/reassemble the projector to maintain the quality. Make sure to also observe the WARNING and CAUTION precautions given in each section describing disassemble/reassemble procedure of each unit or component in this chapter.

  • Page 47: Tools And Equipment

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 4.1.4 Tools and Equipment The table below lists the tools and equipment required for servicing the projector. All are commercially available, and should be made ready beforehand. Table 4-1. Name Qty. Application Disassembling the focus ring and the zoom Phillips screwdriver No.

  • Page 48: Precautions For Optical Engine And Main (Ma) Board

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 4.1.5 Precautions for Optical Engine and Main (MA) Board The Optical Engine and Main (MA) Board are paired together as a single service part. Neither is available separately. For service that requires the replacement of either the MA Board or the Optical Engine, both components must be replaced together.

  • Page 49: Projector Disassembly And Assembly

    CONFIDENTIAL 4.2 Projector Disassembly and Assembly The general disassembly procedure for the EMP-1825/1815/1810 projectors is illustrated below. Except where indicated separately, all reassembly should be carried out by following the disassembly procedures in reverse. Detailed disassembly procedures for each compo- nent are given in Sections 4.3 "Removing Exterior Parts/Components"...
  • Page 50 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL The table below shows the part names used in this chapter and their official names given in the After Service Part List in the SPI (Service Part Information). Table 4-2. Part Names given in the SPI Official Name used in SPI...
  • Page 51 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL Table 4-2. Part Names given in the SPI Official Name used in SPI Names used this Chapter SWITCH,LAMP LID DETECT Lamp Lid Detection Switch PLATE,USB FASTEN USB Fastening Plate PRINTED CIRCUIT BOARD ASSEMBLY;US USB Board Assy. SHEET,IF,SHADE IF Shade Sheet...
  • Page 52 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL Table 4-2. Part Names given in the SPI Official Name used in SPI Names used this Chapter CABLE,MA-IM MA-IM Cable CABLE,USB USB Cable PLATE,CF CF Plate PLATE,IM,FASTEN IM Fastening Plate SHEET,SHADE,CFSLOT CF Slot Shading Sheet SHEET.SHADE,USB USB Shading Sheet COVER,DUCT,EX,INNER;B...

  • Page 53: Removing Exterior Parts/Components

    SCREW, LAMP;3X6 Figure 4-3. 4. (EMP-1825/1815 only) Push the button on the right of the CF Card Slot, and remove the Dummy CF Card. 5. (EMP-1825/1815 only) If the Wireless LAN Unit is mounted, remove the screw that secures the Wireless LAN Unit and remove the Wireless LAN Unit.

  • Page 54: Removing The Air Filter Assy

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 4.3.2 Removing the Air Filter Assy. 1. Pull the tab of the Air Filter Assy. in the direction of the arrow with your finger, and remove the Air Filter Frame. Air Filter Assy. Figure 4-5. SEIKO EPSON 4-11...

  • Page 55: Removing The Front Foot Unit/Rear Foot/Rubber Foot

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 4.3.3 Removing the Front Foot Unit/Rear Foot/Rubber Foot Removing the Front Foot Unit 1).Press a screwdriver or similar tool into the small slot beside the Front Foot Unit, and take out the Front Foot Unit. Front Foot Unit Figure 4-6.

  • Page 56: Removing The If-Im Case/Upper Case Unit Aj

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 4.3.4 Removing the IF-IM Case/Upper Case Unit AJ Removing the IF-IM Case 1).Remove the four screws (C.B.SCREW,3X6,F/NI) that secure the IF-IM Case, and remove the IF-IM Case. 2).Remove the IF Label from the IF-IM Case. IF-IM Case IF Label Figure 4-8.
  • Page 57 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 4).Remove the screw (C.B.P-TITE SCREW,3X10,F/ZB-3C) that secures the Upper Case Unit AJ from the top. 5).Remove the M3 Plate Nut from the Upper Case Unit. 6).Lift the Upper Case Unit carefully. (Three cables are connected to the MA Board. So, be careful not to lift the case too much to avoid the damage to the three connector cables.)
  • Page 58 • Upper Case Sheet • PJ Lens Cushion B • Sensor Sheet • LG Shading Sheet • Ferrite Core • LED Lens (* EMP-1825/1815 only) • LED Cushion (* EMP-1825/1815 only) Upper Case Sheet LG Shading Sheet Lamp Lid Detection Switch...
  • Page 59 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL When reassembling the Upper Case, attach the parts below to the specified C A U T I O N places according to the standard. • PJ Lens Cushion B Horizontally: the center between the red lines. Vertically: aligning it to the guide.
  • Page 60 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL Secure the SW cable and the ferrite core of the Control Panel to the Upper C A U T I O N Case with heat-resistant tape according to the standard below. ± • Red lines: 4.5cm 5mm in between.
  • Page 61 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 4.3.4.2. Removing the Lens Shutter B/Lens Shutter A/Photo Interrupter 1. Remove the screw (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secures the Lens Shutter B, and remove the Lens Shutter B from the Upper Case Unit AJ together with the Lens Shutter A and the Photo Interrupter.
  • Page 62 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL When attaching the Lens Shutter Sheet to the Lens Shutter, follow the C A U T I O N standard below. • Align the sheet to the red lines. • Protrusion: 0mm (outside)/ within 1mm (inside) Lens Shutter Sheet Lens Shutter Figure 4-17.

  • Page 63: Removing The Engine/Boards

    2. Disconnect the R/G/B Light Valve cables and the 13 connector cables that are connected to the MA Board from the board. CN1202 CN2200 (EMP- 1810 only) CN1305 CN500 CN1303 CN1301 CN2400 CN1203 CN1306 CN1204 CN1300 Light Valves CN1302 CN1201 CN1304 CN502 (EMP-1825/1815 only) CN1307 CN1205 Figure 4-20. SEIKO EPSON 4-20 Revision:C...
  • Page 64 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 3. Remove the nine screws (C.C.SCREW,3X6,F/ZN-3C) that secure the MA Board Assy. 4. Remove the screw (C.P.(S-P1)SCREW,4X6,F/ZN-3C) that secures the MA Board Assy.’s GND. 5. Remove the screw (C.B.SCREW,3X6,F/NI) that secures the USB terminal, and remove the MA Board Assy.
  • Page 65 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL When reassembling the MA board, attach the following parts as shown below. C A U T I O N 1). Attach the EMI suppressor; C first, then attach the Heat Sink; PW on it. 2). Align the Heat Sink; A as shown in the figure below.
  • Page 66 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL Attach the IF Shade Sheet as shown in the figure below. C A U T I O N IF Shade Sheet Figure 4-23. <EMP-1810 only> Attach the LAN Shade Sheet to the USB Terminal as shown in the figure below.
  • Page 67 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL When installing the MA Board Assy., be sure to place the red-circled parts C A U T I O N coming inside of the metal parts as shown in the figures below. Figure 4-25. SEIKO EPSON 4-24 Revision:C...
  • Page 68 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL When connecting the cables to the MA Board Assy., route the cables as C A U T I O N follows. Figure 4-26. Connected to Connected to RC Board PS Ballast (PS) PBS Fan PS Fan IM Board...
  • Page 69 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL • (1), (2), (3)’s Routing C A U T I O N 1). Do not route the cables inside the red-line. Figure 4-27. • (4), (5), (6), (7), (8)’s Routing 1). Do not route the cables inside the red-line.
  • Page 70 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL • (8), (9), (10), (11)’s Routing C A U T I O N 1). Route (8) through the loops of (9), (10), (11) before connecting it. 2). Do not route the cables outside the red line. Figure 4-29.
  • Page 71 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 4.4.1.1. Removing the IF Board Assy. 1. Remove the IF Shade Sheet from the MA Board Assy. 2. Remove the eight screws (Screw, HSH 4-40) that secure the D Sub15pin terminals and the two screws (C.B.P-TITE SCREW,3X8,F/ZB-3C) that secure the RCA terminals and S- terminal.
  • Page 72 )/IM Board Assy.* /CF Slot Assy.* /USB Board Assy.* NOTE *1: EMP-1825/1815’s Case/*2: EMP-1810’s Case/*3: EMP-1825/1815 only Removing SB Assy. IM (IS Board Assy.) 1).Disconnect the SB-IM FFC Cable from the connector on the SB Assy. IM (IS Board Assy.).
  • Page 73 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL Removing the IM Board Assy. (EMP-1825/1815 only) 4).Remove the screw (C.C.SCREW,3X6,F/ZN-3C) that secures the IM Board Assy. 5).Remove the three screws (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secure the IM Board Assy. and remove the IM Board Assy. 6).Disconnect the MA-IM Cable from the connector (CN1302) on the IM Board Assy.
  • Page 74 9).Remove the two screws (C.C.SCREW,3X6,F/ZN-3C) that secure the CF Plate, and remove the CF Plate together with the USB Board Assy. and CF Slot Assy. Removing the USB Board Assy./CF Slot Assy. (EMP-1825/1815 only) (p. 38)) 10).Remove the screw (C.C.SCREW,3X6,F/ZN-3C) that secures the IM Fastening Plate, and remove the IM Fastening Plate.
  • Page 75 Removing EMI Suppressor/EMI Suppressor E (EMP-1825’s case) C A U T I O N In EMP-1825’s case, seven EMI Suppressor and two EMI Suppressor E are attached on the back of the IM Board Assy. Refer to Figure 4-37 (p. 33) attaching locations.
  • Page 76 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL (EMP-1825 only) When replacing IM board Assy., attach EMI suppressors C A U T I O N (x9) following the instructions below aligning them with the markings and covering the wiring marked with pink. (1): Align it with the right sides of IC A, B and left sides of IC G and CF slot.
  • Page 77 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL (EMP-1815 only) When reassembling the IM Board Assy., follow the C A U T I O N standard below. • Attach the EMI Suppressor Sheets (x2) aligning them to the red-lined standard (allowed protrusion: 1mm outside from the lines).
  • Page 78 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL (EMP-1815/1825 only) After the CF Shading Sheet is installed as shown C A U T I O N below, attach the Gasket (x2) to the circled places through the holes. CF Shading Sheet Gasket 5x5 (L=10) Figure 4-39.
  • Page 79 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL (EMP-1815/1825 only) After installing the IM Shield Plate and the IM C A U T I O N Fastening Plate to the IM Board Assy., attach the Gasket to the specified place shown below in the direction of the arrow upward.
  • Page 80 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL C A U T I O N • Set the bead core and the ferrite core of the USB cable as shown in the figure below. USB cable’s core Bead core Figure 4-44. • Attach the Conduction Plate; Fan of the USB Board Assy contacting with the metal part of the Intake Fan.
  • Page 81 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL Removing the USB Board Assy./CF Slot Assy. (EMP-1825/1815 only) 16).Remove the two screws (C.C.SCREW,3X6,F/ZN-3C) that secure the USB Board Assy. from the CF Plate, and remove the USB Board Assy and Conduction Plate; Fan. 17).Remove the USB Shading Sheet from the USB Board Assy.
  • Page 82 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL (EMP-1815/1825 only) When reassembling the USB Board Assy., attach the C A U T I O N USB Shading Sheet drawing out the connector’s ribs from the hole as shown in the figure. USB Shading Sheet Figure 4-47.

  • Page 83: Removing The Inner Exhaust Duct B/Th Board Assy

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 4.4.2 Removing the Inner Exhaust Duct B/TH Board Assy. 1. Remove the screw (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secures the Cover Inner EX Duct B, and remove the Cover Inner EX Duct B from the Inner Exhaust Duct B. 2. Remove the screws (x2: C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secure the Inner Exhaust Duct B, and remove the Inner Exhaust Duct B.
  • Page 84 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL When installing the Inner EX duct B, set the Safety Switch into the notch of C A U T I O N the duct as shown in the figure below. Safety Switch Figure 4-50. SEIKO EPSON 4-41 Revision:C...

  • Page 85: Removing The Optical Engine And Mab (2) (Optical Engine)

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 4.4.3 Removing the Optical Engine and MAB (2) (Optical Engine) 1. Remove the LG Shading Sheet. 2. Remove the four screws (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secure the Optical Engine, and remove the Optical Engine. LG Shading Sheet Optical Engine Figure 4-51.
  • Page 86 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL When installing the Optical Engine, follow the directions below. C A U T I O N 1). Route the cable of the L/V thermistor as shown below. 2). Attach the LG Shading Sheet aligning the red-circled parts as shown in the figure below.
  • Page 87 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL When sending the replaced Optical Engine and MAB set to the repair center, be C A U T I O N sure to send all the parts listed below. Table 4-3. Components of Optical Engine and MAB set...
  • Page 88 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 4.4.3.1. Removing the Focus Ring/Zoom Ring 1. Remove the three screws (C.P.TYPE3 B-TITESCREW,1.7X4,F/ZB-3C) that secure the Focus Ring, and remove the Focus Ring. 2. Remove the three screws (C.P.TYPE3 B-TITESCREW,1.7X4,F/ZB-3C) that secure the Zoom Ring, and remove the Zoom Ring.

  • Page 89: Removing Other Main Parts

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 4.5 Removing Other Main Parts 4.5.1 Removing the Inner Exhaust Duct A/Exhaust Fan Assy. 1. Remove the screw (C.C.SCREW,3X6,F/ZN-3C) that secures the Lamp Connector, and release the Lamp Connector from the Inner Exhaust Duct A. 2. Remove the three screws (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secure the Inner Exhaust Duct A, and remove the Inner Exhaust Duct A while drawing out the Safety Switch from the hole of the Inner Exhaust Duct A.
  • Page 90 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL When installing the Inner EX Duct; A, set the Safety Switch through the hole C A U T I O N as shown in the figure below. Safety Switch hole Figure 4-56. SEIKO EPSON 4-47 Revision:C...

  • Page 91: Removing The Ps Fan/Ps Ballast Assy./Speaker

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 4.5.2 Removing the PS Fan/PS Ballast Assy./Speaker Removing the PS Fan 1).Remove the two screws (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secure the PS Duct, and remove the PS Duct together with the PS Fan from the Lower Case. 2).Remove the PS Fan from the PS Duct.
  • Page 92 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL When reassembling the PS Duct, attach the BS Sheet FIF (x2) according to the C A U T I O N standard shown in the figure below. BS Sheet FIF Figure 4-58. SEIKO EPSON 4-49 Revision:C...
  • Page 93 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL Follow the procedure below to install the PS Ballast Assy. C A U T I O N 1). Route the Lamp Cable (igniter not-attached side) as shown below. hooks Figure 4-59. 2). Route the Lamp cable (igniter attached side) through the groove indicated by the red box in the figure below.

  • Page 94: Removing The Ps Ballast Assy.(2) (Filter Board Unit)/Lamp Fan

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 4.5.3 Removing the PS Ballast Assy.(2) (Filter Board Unit)/Lamp Fan Removing the Filter Board Unit 1).Remove the two screws (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secure the AC Inlet Fastening Plate. 2).Disconnect the AC Cable from the connector on the Filter Board Unit, and unlock the three hooks and remove the Filter Board Unit together with the AC Inlet Fastening Plate.
  • Page 95 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL When installing the Filter Board Unit, make sure to observe the following C A U T I O N points. • The black cable must cross over the white cable. • The fuse holder must not contact with the cable...
  • Page 96 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL After installing the Lamp Fan, make sure that the AC cable and the PBS Fan C A U T I O N cable are properly fastened at the three points indicated by the red circles in the figure.

  • Page 97: Removing The Intake Fan/Pbs Fan/Ac Cable/Rc Board Assy

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 4.5.4 Removing the Intake Fan/PBS Fan/AC Cable/RC Board Assy. Removing the Intake Fan 1).Remove the six screws (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secure the Intake Duct, and remove the Intake Duct from the Lower Case. 2).Remove the two Fastening Plate A from the Intake Duct.
  • Page 98 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL Follow the procedure below to install the AC cable. C A U T I O N 1). Make sure that the ferrite core is inserted all the way into the slot of the Lower Case. 2). Route the AC cable as shown below.
  • Page 99 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL Follow the procedure below to install the PBS Fan. C A U T I O N 1). Attach the Intake Fan Cushion A as shown below. Intake Fan Cushion A Figure 4-68. 2). Route the cable of the PBS Fan as show below. Be careful not to let the cable go upper side from the red line shown in the figure.
  • Page 100 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 3). Install the PBS Fan to the Lower Case retaining the cable routed at Step 2. C A U T I O N Figure 4-70. SEIKO EPSON 4-57 Revision:C...

  • Page 101: Removing The Ballast Filter Assy./Security Bar/Lower Case

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 4.5.5 Removing the Ballast Filter Assy./Security Bar/Lower Case 1. Remove the Ballast Filter Assy. from the Lower Case. 2. Remove the Lower Shield Plate from the Lower Case. 3. Remove the two screws (C.B.P-TITE SCREW,2.5X10,F/ZN-3C) that secure the Security Bar Cover, and remove the Security Bar Cover and the Security Bar from the Lower Case.
  • Page 102 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL Make sure to observe the following points to install the Lower Case. C A U T I O N • Attach the four gaskets aligning their corners with their respective reference red ± lines (within an error of 0.5 mm).
  • Page 103 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL Before installing the Lower Shield Plate, attach the two gaskets to the plate. C A U T I O N Make sure to align the gaskets’ corners with the corners of the plate indicated by the red lines.
  • Page 104 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL Install the Lower Shield Plate to the Lower Case as shown below. C A U T I O N Figure 4-74. SEIKO EPSON 4-61 Revision:C...

  • Page 105: Chapter 5 Adjustment

    Chapter 5 Adjustment...

  • Page 106: Overview

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 5.1 Overview This chapter describes the adjustment procedures required after repairing or replacing certain parts. 5.1.1 Required Adjustment List The adjustment required after repair work is listed below. Table 5-1. Adjustment (Calibration) Adjustment Item Adjustment name Purpose Method To reset abnormal G-Sensor’s Zero...

  • Page 107: Adjustment (Calibration)

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 5.2 Adjustment (Calibration) This section describes the procedures of the adjustment (Calibration). 5.2.1 G-Sensor’s Zero Point Adjustment The procedure of the G-Sensor’s Zero Point Adjustment is explained below. Purpose To reset abnormal G-Sensor’s Zero Point to adjust the Auto Keystone Correction function, in the case that the G-Sensor’s Zero Point has been set wrong for some reasons.

  • Page 108: Cmos Image Sensor Calibration

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 5.2.3 CMOS Image Sensor Calibration The procedure of the CMOS Image Sensor Calibration is described below. Purpose To adjust the "Quick Setup" function, when replacing the IS Board Assy, or the Optical Engine and MAB set. Setting Environment •...
  • Page 109 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL • There must be over 50 cm from the floor level to the setting position of the projector. (refer to Figure 5-2) • The projection distance must be within 100 cm ± 2 cm. (Projection distance: the distance between the projector and the screen.)
  • Page 110 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 7. Press the [QuickSetup] button once. • The calibration at the Wide position starts. • When the calibration has been successfully finished, the image changes to a big "C (rep- resenting "Center") automatically. [Pause Window 2] Figure 5-4. Pause Window 2 •...
  • Page 111 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 10.Press the [QuickSetup] button once. • The calibration at the Center position starts. • When the calibration has been successfully finished, the image changes to a big "T (rep- resenting "Tele") automatically. [Pause Window 3] Figure 5-6. Pause Window 3 •...

  • Page 112: Inspection Procedure

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL 5.2.4 Inspection Procedure After finishing the adjustment, check if the "QuickSetup" function works properly. (For the details of the procedure of "QuickSetup" refer to the Users Manual of this product.) SEIKO EPSON Revision:C...

  • Page 113: Chapter 6 Appendix

    Chapter 6 Appendix...

  • Page 114: As (After Service) Menu

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL The contents of this chapter are for use only by Epson Authorized Services, and C A U T I O N are not to be disclosed to others without the express written consent of Epson. 6.1 AS (After Service) Menu This menu provides information and settings that are not displayed on the standard menu.
  • Page 115 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL S-Video/ Video’s case. (Page 1) XXXXXXXXXXXXXX XXXXXXXXXXXXXX Source Video Signal Video Signal : ----------- : ----------- Total Operation Time Total Operation Time : 0H : 0H Lamp Op. Time (C) Lamp Op. Time (C) : 0H/ 0H : 0H/ 0H...
  • Page 116 EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL Error Log Window (Page 2) While the AS menu is displayed, the Error Log Window can be displayed by pressing the button. To go back to the AS menu, press the button. [Right] [Left] CD TOT (h CD TOT (h:m:s) LOT (h:m:s) POT (h:m:s) ST...

  • Page 117: Initializing (Resetting) The As Menu Values

    EMP-1825/EMP-1815/EMP-1810 CONFIDENTIAL Item Contents Representation Internal overheat Fan error Thermistor error Lamp burnt out Lighting failure Internal error (RAM) Internal error (ROM) 2-digit number (00-99) Internal error (I2S) Error Count Over 99: “99” (times) Internal error (DR) (Not cleared to “0.”)

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