Epson Elp-3500 Service Manual Page 1

ELP-3500Epson America, Inc.TM-ELP3500Service Manualwww.electronicsrepair.net

EPSON ELP-3500 Service Manual1-3Figure 1-4.1. VCR Syn-Video2. VCR Video3. VCR Audio Left4. VCR Audio Right5. Output for External Speakers6. Serial Por

EPSON ELP-3500 Service ManualA-7A.3 Schematic DiagramsFigure A-3. Schematic Diagram 1

EPSON ELP-3500 Service ManualA-8Figure A-4. Schematic Diagram 2

EPSON ELP-3500 Service ManualA-9Figure A-5. Schematic Diagram 3

EPSON ELP-3500 Service ManualA-10Figure A-6. Schematic Diagram 4

EPSON ELP-3500 Service ManualA-11Figure A-7. Schematic Diagram 5

EPSON ELP-3500 Service ManualA-12Figure A-8. Schematic Diagram 6

EPSON ELP-3500 Service ManualA-13Figure A-9. Schematic Diagram 7

EPSON ELP-3500 Service ManualA-14Figure A-10. Schematic Diagram 8

EPSON ELP-3500 Service ManualA-15Figure A-11. Schematic Diagram 9

EPSON ELP-3500 Service ManualA-16Figure A-12. Schematic Diagram 10

EPSON ELP-3500 Service Manual1-41.2.2 INTERIOR VIEW OF THE MAIN FRAMEMain BoardPower Supply Safety SwitchFigure 1-7.Interface UnitDriver BoardControl

EPSON ELP-3500 Service ManualA-17Figure A-13. Schematic Diagram 11

EPSON ELP-3500 Service ManualA-18Figure A-14. Schematic Diagram 12

EPSON ELP-3500 Service ManualA-19Figure A-15. Schematic Diagram 13

EPSON ELP-3500 Service ManualA-20Figure A-16. Schematic Diagram 14

EPSON ELP-3500 Service ManualA-21Figure A-17. Schematic Diagram 15

EPSON ELP-3500 Service Manual1-51.2.3 EXTERIOR VIEW OF THE REMOTE CONTROLFigure 1-9.

EPSON ELP-3500 Service Manual1-61.2.4 INTERIOR VIEW OF THE REMOTE CONTROLFigure 1-10.Figure 1-11.

EPSON ELP-3500 Service Manual1-71.3 CONNECTION1.3.1 MS-DOS and CompatiblesDesktopFigure 1-12.NotebookFigure 1-13.* Attached accessories

EPSON ELP-3500 Service Manual1-81.3.2 MacintoshDesktop* Attached accessoriesFigure 1-14.DIP switch settings must match machine type. Refer to the tab

EPSON ELP-3500 Service Manual1-9PowerBookFigure 1-16.1.4 MAIN COMPONENTSMain BoardFigure 1-17.

EPSON ELP-3500 Service Manual1-10Driver BoardFigure 1-18.Interface UnitFigure 1-19.

EPSON ELP-3500 Service Manual1-11Power Supply UnitPower Supply UnitFigure 1-20.Light Guide BlockFigure 1-21.

EPSON ELP-3500 Service Manual1-12Optical Head UnitFigure 1-22.Projector Lens UnitFigure 1-23.

iiELP-3500Service Manual

EPSON ELP-3500 Service Manual1-13Lamp Inner HousingFigure 1-24.Control PanelFigure 1-25.

EPSON ELP-3500 Service Manual1-141.5 SPECIFICATIONSTable 1-2.OPTICAL FEATURESDisplay method Transparency-type, TFT color liquid crystal display (R/G/

EPSON ELP-3500 Service Manual1-151.6 INTERFACE SPECIFICATIONS1.6.1 Mouse Interface SpecificationsFeaturesThis interface is provided on an optional c

EPSON ELP-3500 Service Manual1-16Asynchronous Data Bus (ADB) PortFeaturesThis interface is provided on an optional cable (not on the projector).❐ 10 k

EPSON ELP-3500 Service Manual1-17Mouse Emulation FunctionThis function converts data transmitted from a remote control into mouse data for a PS/2,ADB,

EPSON ELP-3500 Service Manual1-181.6.2 Computer Interface BoardFigure 1-28.Computer Video InputTable 1-7. Computer Video Input D-SUB 15 (HD)Pin Signa

EPSON ELP-3500 Service Manual1-19Table 1-9.Pin Signal Pin Signal1 DATA 8 LEFT2 CLK 9 RIGHT3 ADB 10 ID24 XA 11 ID35 XB 12 +5 V6 YA 13 GND7YB1.6.4 Vide

EPSON ELP-3500 Service Manual1-20Video audio input L, RRCA, gold-plated connector (only insertion portion), right angle H=15 mm;colors: L = white; R =

EPSON ELP-3500 Service Manual1-211.6.5 I/O Terminal LayoutThe terminals listed below are vertically located in two rows on the rear panel.Table 1-14.

EPSON ELP-3500 Service Manual1-22

ivINTRODUCTIONThis service manual describes hardware information necessary for field service andtroubleshooting of the ELP-3500 Projector. Manual upd

2-12.1 HARDWAREThe optical and electrical systems are the major areas of projector hardware. The lowerlevel (below the broken line in the figure) sho

EPSON ELP-3500 Service Manual2-22.1.1 ELECTRICAL SYSTEM CONNECTIONSElectrical units are physically connected to the main board, as shown below.Figure

EPSON ELP-3500 Service Manual2-32.1.2 OPTICAL SYSTEM CONNECTIONSThe optical system consists of 4 blocks (lamp inner/outer housing, light guide unit,

EPSON ELP-3500 Service Manual2-42.2 POWER SUPPLY UNITThe power supply unit includes a DC regulator, exhaust fan, and interlock switch for thelamp cov

EPSON ELP-3500 Service Manual2-5Functional Outline* The interlock switch at the bottom of main chassis shuts off AC power when the lampcover is opened

EPSON ELP-3500 Service Manual2-6Pin AssignmentsPin 1 (Red)CN501Pin 15CN505Figure 2-7.Table 2-4.Pin No. I/O Signal1 IN Lamp on/off2-9 — Ground7 OUT +18

EPSON ELP-3500 Service Manual2-7Table 2-5.Fuses Specifications PurposeFU500 451002 (2 A) +18 V ROM/InterfaceFU501 451002 (2 A) +12 VS Fan/speakerFU502

EPSON ELP-3500 Service Manual2-8Main Board Circuit BlockFigure 2-9.CN501FU500 451002 (2 A)FU501 451002 (2 A)FU502 451002 (2 A)FU503 CCP2E20 (0.8 A)FU5

EPSON ELP-3500 Service Manual2-9Functional Outline* When power is turned on, the driver board activates the reset signal, which iscontrolled by IC601,

EPSON ELP-3500 Service Manual2-10* The projector has a timer circuit that controls the operating time of the light sourcevalve. Its operation is descr

vPRECAUTIONSOPERATOR SAFETY1. PROTECTION FROM ELECTRIC SHOCK* Before performing any repair work on the product, be sure to turn off the powerswitch a

EPSON ELP-3500 Service Manual2-112.4 DRIVER BOARDThe driver board has a circuit for converting the signals from the main board into sixanalog signal

EPSON ELP-3500 Service Manual2-12Circuit Block Diagram of the Video BoardFigure 2-11. F600 CCP2E20 (600 mA) F601 CCP2E20 (600 mA) F602 CCP2E13 (520

EPSON ELP-3500 Service Manual2-132.5 INTERFACE BOARD UNITThis unit consists of two boards (IB1 and IB2) with interfaces that can be connected toexter

EPSON ELP-3500 Service Manual2-14Figure 2-13.Figure 2-14.J100connectorCurrent limiter(100 Ω)Noise filter(diode circuit)CN100J101connectorNoise filter(

EPSON ELP-3500 Service Manual2-152.6 CONTROL PANELThe board on this panel contains eight buttons and six LEDs. It is connected to CN504on the main bo

EPSON ELP-3500 Service Manual2-162.8 SPEAKER UNITInside the upper case is a speaker. Audio signals from the amplitude circuit on the videoboard are o

EPSON ELP-3500 Service Manual2-172.9 LIGHT GUIDE BLOCKThe light valve block eliminates ultraviolet rays harmful to the light valves and makes theligh

EPSON ELP-3500 Service Manual2-18A/B Multi-lensDispersion of light from the light source lamp through the A/B multi-lens makesbrightness roughly unifo

EPSON ELP-3500 Service Manual2-192.10 R/G/B LIGHT VALVES TO PRISM UNIT2.10.1 R/G/B LIGHT VALVESThe R/G/B light valves are each high-density, liquid

EPSON ELP-3500 Service Manual2-202.10.2 PRISM UNITThe prism unit creates the three lights, which are transmitted through the light valve.Figure 2-21.

vi* Use only the power cable and the interface cables supplied with the product.3. OTHER PRECAUTIONS* Visually check for damage or dirt on the power

EPSON ELP-3500 Service Manual2-212.12 LAMP HOUSINGThe lamp housing consists of the light source valve and connector for the power supplyunit.Figure 2

EPSON ELP-3500 Service Manual2-22Table 2-10.Warning Light Color StatusTemp Red Projector is hot.Lamp Red Lamp needs to be replaced.Temp and Lamp Flash

3-13.1 DISASSEMBLY AND ASSEMBLY PROCEDURESThis section explains how to disassemble the ELP-3500. The assembly procedure is theexact reverse of the di

EPSON ELP-3500 Service Manual3-2PrecautionsRead the precautions given in individual assembly and disassembly procedures carefullybefore starting the p

EPSON ELP-3500 Service Manual3-33.2 Projector Main Unit Disassembly and AssemblyThe flowchart for disassembling the projector main unit is shown belo

EPSON ELP-3500 Service Manual3-43.2.1 Removing the Lamp Inner HousingLamp CoverScrewsFigure 3-2.Lamp Inner HousingScrewsHandleFigure 3-3.1. Remove t

EPSON ELP-3500 Service Manual3-53.2.2 Removing the Upper Case Unit and HandleHandle Holder CoverFigure 3-4.ScrewsFigure 3-5.1. Pull the handle up. I

EPSON ELP-3500 Service Manual3-6(Continued from the previous page)ScrewsFigure 3-6.Interface UnitDriver BoardControl PanelSpeakerProjector LensSpeaker

EPSON ELP-3500 Service Manual3-73.2.3 Removing the Air Filter FrameAir Filter Frame TabFigure 3-8.1. Push the tab on the air filter frame. Then lift

EPSON ELP-3500 Service Manual3-83.2.4 Removing the Main Board BlockPrerequisite: Complete the steps explained in Section 3.2.2.123456789Figure 3-9.1.

viiContentsChapter 1 Product Features1. 1 Product Features ...1-

EPSON ELP-3500 Service Manual3-9(Continued from previous page)ScrewFG StrapFigure 3-10.ScrewsScrewsScrewsRemoveBracketFigure 3-11.2. Remove the screw

EPSON ELP-3500 Service Manual3-103. Remove 7 mounting screws from the main board block (one of the screws mountsthe FG strap also).6 Screws: +M3x6 F/

EPSON ELP-3500 Service Manual3-113.2.5 Removing the Exhaust Fan UnitPrerequisite: Complete the steps explained in Section 3.2.1.Exhaust FanFan Holdi

EPSON ELP-3500 Service Manual3-123.2.6 Removing the Safety SwitchPrerequisite: Complete the steps explained in Section 3.2.1.ScrewsFast-on TabsSafety

EPSON ELP-3500 Service Manual3-133.2.7 Removing the Control PanelPrerequisite: Complete the steps explained in Section 3.2.1.TabsTabsFigure 3-15.1. P

EPSON ELP-3500 Service Manual3-143.2.8 Removing the Speaker UnitsPrerequisite: Complete the steps explained in Section 3.2.1.ScrewsScrewFigure 3-17.1

EPSON ELP-3500 Service Manual3-153.2.9 Removing the Receptor Board AssemblyPrerequisite: Complete the steps explained in Section 3.2.1.ScrewReceptorB

EPSON ELP-3500 Service Manual3-163.2.10 Removing the Driver Board AssemblyPrerequisite: Complete the steps explained in sections 3.2.1 and 3.2.4.Scre

EPSON ELP-3500 Service Manual3-173.2.11 Removing the Power Supply UnitPrerequisite: Complete the steps explained in sections 3.2.1 and 3.2.4.ScrewsPo

EPSON ELP-3500 Service Manual3-183.2.12 Removing the Interface Unit AssemblyPrerequisite: Complete the steps explained in sections 3.2.1 and 3.2.4.Gr

viiiChapter 3 Disassembly and Assembly3.1 Disassembly and Assembly Procedures ...3-13.2 Projector

EPSON ELP-3500 Service Manual3-193.2.13 Removing the Lamp Outer Housing UnitPrerequisite: Complete the steps explained in sections 3.2.1 and 3.2.6.Sc

EPSON ELP-3500 Service Manual3-203.2.14 Removing the Adjustable Foot UnitPrerequisite: Complete the steps explained in sections 3.2.1, 3.2.4, 3.2.10,

EPSON ELP-3500 Service Manual3-213.2.15 Removing the Optical BlockPrerequisite: Complete the steps explained in sections 3.2.1, 3.2.4, 3.2.5, 3.2.10,

EPSON ELP-3500 Service Manual3-223.2.16 Removing the Projector Lens Unit (PLU)Prerequisite: Complete the steps explained in sections 3.2.1, 3.2.4, 3.

EPSON ELP-3500 Service Manual3-233.2.17 Removing the Intake Fan / Optical Head Unit / Light Guide UnitPrerequisite: Complete the steps explained in s

EPSON ELP-3500 Service Manual3-24Optical Head Unit/Light Guide UnitScrewsFigure 3-30.1. Remove the mounting screw on the bottom of the optical head u

EPSON ELP-3500 Service Manual3-253.2.18 Removing the Inlet UnitPrerequisite: Complete the step explained in sections 3.2.1, 3.2.4, 3.2.5, 3.2.10, 3.2

EPSON ELP-3500 Service Manual3-263.3 Disassembling and Assembling the Remote Control UnitThe whole remote control unit is handled as a service part;

4-14.1 Before Starting Troubleshooting Procedures1. Before you replace a unit or block, double-check that it is actually defective. (Forexample, chec

EPSON ELP-3500 Service Manual4-24.2 First ActionFollow the flowchart below before starting to troubleshoot projector problems, andproceed to the pert

1-11.1 PRODUCT FEATURESThe ELP-3500 Projector is an easy-to-use, portable presentation device with a VGAresolution that lets you project enhanced col

EPSON ELP-3500 Service Manual4-3YESNOFigure 4-2.SYSTEM INITIALIZATIONSTARTTurn on power.Does the projector have power(POWER LED is lit)?Reconnect the

EPSON ELP-3500 Service Manual4-4Figure 4-3.DISPLAY MODESTART(System Init is OK.)Go to“VideoDisplayMode.”Does the lamp light?Replace the lamp.Does the

EPSON ELP-3500 Service Manual4-5Figure 4-4.Video Display ModeSTART(Display Mode is OK.)Check the projector witha PC. Is PC input OK?Reconnect CN100 an

EPSON ELP-3500 Service Manual4-6Figure 4-5.Go to “Picture Quality.”Audio ModeSTART(Video is OK.)Is speaker output OK?Reconnect CN400 on themain board.

EPSON ELP-3500 Service Manual4-7Picture QualitySTART(Audio is OK.)Is there an intermittentsync signal problem?Replace the driver board.Is there still

EPSON ELP-3500 Service Manual4-8Figure 4-7.Remote ControlSTART(Picture quality is OK.)Does the wireless remotecontrol work?Replace the batteries.Does

5-15.1 Image Adjustment ProgramThis program diskette contains the adjustment functions in the table below.Table 5-1.Number Image adjustment program f

EPSON ELP-3500 Service Manual5-2After completing the focus alignment, you should use the image adjustment program toobtain the best display quality. T

EPSON ELP-3500 Service Manual5-32. Type A:, then press Enter (C:\>A: Enter).3. Make sure the A:\> prompt appears on the computer screen.4. Type

EPSON ELP-3500 Service Manual5-4***Flicker Adjustment***COLOR REDChange data using arrow key.Left Arrow Key: down Right Arrow Key: upSelect Enter Ke

EPSON ELP-3500 Service Manual1-2❐ DDC complianceThe ELP-3500 conforms to DDC 1/2 standards. When you connect this deviceto the computer conforming to

EPSON ELP-3500 Service Manual5-5adjustment menuFigure 5-5.3. Use the right and left arrow keys to make the border line between each block in thepatte

EPSON ELP-3500 Service Manual5-6adjustment menuFigure 5-6.3. Use the right and left arrow keys to adjust the image so that the two patterns on therig

EPSON ELP-3500 Service Manual5-7Figure 5-7.4. Data TransferThis menu option writes the settings into the projector’s flash ROM. The values you haveset

EPSON ELP-3500 Service Manual5-8 Create New HEX file? [Y/N] File Name: 004 File Name: 00400000.gam

EPSON ELP-3500 Service Manual5-9

A-1A.1 Reference MaterialsTable A-1. ELP-3500 Parts ListFigureRef. No.Description Mfr. PartNo.Min. QtyPOSpecification1 Lower Case Unit 1031084 81-1 Lo

EPSON ELP-3500 Service ManualA-2Table A-1. ELP-3500 Parts List (Continued)FigureRef. No.Description Mfr. PartNo.Min. QtyPOSpecification7-5 Lamp Outer

EPSON ELP-3500 Service ManualA-3Table A-1. ELP-3500 Parts List (Continued)FigureRef. No.Description Mfr. PartNo.Min. QtyPOSpecification37 Accessory Bo

EPSON ELP-3500 Service ManualA-4A.2 Exploded DiagramsFigure A-1. Exploded Diagram 1

EPSON ELP-3500 Service ManualA-5Figure A-2. Exploded Diagram 2