Сканер epson perfection v500 photo инструкция

• EPSON Perfection V500 Photo

  Color Image Scanner

  Service Manual

  SESC07002

• Notice All rights reserved. No part of this manual may be
  reproduced, stored in a retrieval system, or transmitted in any
  form or by any means electronic, mechanical, photocopying, or

  otherwise, without the prior written permission of SEIKO EPSON
  CORPORATION.

  All effort have been made to ensure the accuracy of the contents
  of this manual. However, should any errors be detected, SEIKO EPSON
  would greatly appreciate being informed of them.

  The contents of this manual are subject to change without
  notice. The above not withstanding SEIKO EPSON CORPORATION can
  assume no responsibility for any errors in this manual or the
  consequences thereof.EPSON is a registered trademark of SEIKO EPSON
  CORPORATION.

  General Notice:Other product names used herein are for
  identification purpose only and may be trademarks or registered
  trademarks of their respec-tive owners. EPSON disclaims any and all
  rights in those marks.

  Copyright 2007 SEIKO EPSON CORPORATION. Imaging Products CS, PL
  & Environmental Management

• PRECAUTIONSPrecautionary notations throughout the text are
  categorized relative to 1) Personal injury and 2) damage to
  equipment.

  DANGER Signals a precaution which, if ignored, could result in
  serious or fatal personal injury. Great caution should be exercised
  in performing procedures preceded by DANGER Headings.

  WARNING Signals a precaution which, if ignored, could result in
  damage to equipment.

  The precautionary measures itemized below should always be
  observed when performing repair/maintenance procedures.

  DANGER

  1. ALWAYS DISCONNECT THE PRODUCT FROM THE POWER SOURCE AND
  PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE OR REPAIR
  PROCEDURES.

  2. NO WORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR
  WITH BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS
  TECHNICIANS IN THEIR LINE OF WORK.

  3. WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL, DO
  NOT CONNECT THE UNIT TO A POWER SOURCE UNTIL INSTRUCTED TO DO SO.
  WHEN THE POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION
  IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.

  4. WHEN DISASSEMBLING OR ASSEMBLING A PRODUCT, MAKE SURE TO WEAR
  GLOVES TO AVOID INJURIER FROM METAL PARTS WITH SHARP EDGES.

  WARNING

  1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON
  CERTIFIED REPAIR TECHNICIAN.

  2. MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE
  RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/RATING PLATE. IF THE
  EPSON PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM AVAILABLE
  POWER SOURCE, DO NOT CONNECT IT TO THE POWER SOURCE.

  3. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED
  FROM THE POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT
  BOARDS AND/OR INDIVIDUAL CHIPS.

  4. IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY,
  USE STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS,
  WHEN ACCESSING INTERNAL COMPONENTS.

  5. DO NOT REPLACE IMPERFECTLY FUNCTIONING COMPONENTS WITH
  COMPONENTS WHICH ARE NOT MANUFACTURED BY EPSON. IF SECOND SOURCE IC
  OR OTHER COMPONENTS WHICH HAVE NOT BEEN APPROVED ARE USED, THEY
  COULD CAUSE DAMAGE TO THE EPSON PRODUCT, OR COULD VOID THE WARRANTY
  OFFERED BY EPSON.

  6. WHEN USING COMPRESSED AIR PRODUCTS; SUCH AS AIR DUSTER, FOR
  CLEANING DURING REPAIR AND MAINTENANCE, THE USE OF SUCH PRODUCTS
  CONTAINING FLAMMABLE GAS IS PROHIBITED.

• About This ManualThis manual describes basic functions, theory
  of electrical and mechanical operations, maintenance and repair
  procedures of the printer. The instructions and procedures included
  herein are intended for the experienced repair technicians, and
  attention should be given to the precautions on the preceding
  page.

  Manual Configuration

  This manual consists of four chapters and Appendix.

  CHAPTER 1.PRODUCT DESCRIPTION Describes the features and basic
  specifications of the product.

  CHAPTER 2.OPERATING PRINCIPLES Describes the electrical and
  mechanical basic operating principles of the product.

  CHAPTER 3.TROUBLESHOOTING Describes the step-by-step procedures
  for the troubleshooting.

  CHAPTER 4.DISASSEMBLY/ASSEMBLY Describes the step-by-step
  procedures for disassembling and assembling the product.

  CHAPTER 5.ADJUSTMENT Provides Epson-approved methods for
  adjustment.

  CHAPTER 6.MAINTENANCE Provides preventive maintenance procedures
  and the lists of Epson-approved lubricants and adhesives required
  for servicing the product.

  APPENDIX Provides the following additional information for
  reference: Connector pin assignments Exploded diagram/Parts List
  Electrical circuit boards schematics

  Symbols Used in this Manual

  Various symbols are used throughout this manual either to
  provide additional information on a specific topic or to warn of
  possible danger present during a procedure or an action. Be aware
  of all symbols when they are used, and always read NOTE, CAUTION,
  or WARNING messages.

  Indicates an operating or maintenance procedure, practice or
  condition that is necessary to keep the products quality.

  Indicates an operating or maintenance procedure, practice, or
  condition that, if not strictly observed, could result in damage
  to, or destruction of, equipment.

  May indicate an operating or maintenance procedure, practice or
  condition that is necessary to accomplish a task efficiently. It
  may also provide additional information that is related to a
  specific subject, or comment on the results achieved through a
  previous action. Indicates an operating or maintenance procedure,
  practice or condition that, if not strictly observed, could result
  in injury or loss of life.

  Indicates a product reassembly procedure, practice or condition
  that must be executed in accordance with the specified standards to
  keep the product’s quality.

• Revision StatusRevision Date of Issue Description

  A August 3, 2007 First release

• EPSON Perfection V500 Photo Revision A

  6

  ContentsChapter 1 PRODUCT DESCRIPTION1.1
  Features……………………………………………………………………………………………………
  91.2 Specifications
  …………………………………………………………………………………………
  101.3 Operating Specifications
  ………………………………………………………………………….
  121.4
  Interface…………………………………………………………………………………………………
  121.5 Exterior Specifications
  …………………………………………………………………………….
  13

  1.5.1 Explanation of Switches
  …………………………………………………………………..
  131.5.2 Explanation of LED Indicators
  ………………………………………………………….
  131.5.3 Dimensions
  …………………………………………………………………………………….
  141.5.4 Maximum Document Size and
  Placement………………………………………….. 15

  1.6 Control
  Codes…………………………………………………………………………………………
  161.7 Error-Time
  Processing……………………………………………………………………………..
  17

  Chapter 2 OPERATING PRINCIPLES2.1 Engine Operation
  Outline…………………………………………………………………………
  19

  2.1.1 Carriage Unit outline
  ……………………………………………………………………….
  192.1.2 Carriage Moving Mechanism Operation
  ……………………………………………. 202.1.3 TPU
  Carriage Unit
  Outline……………………………………………………………….
  212.1.4 TPU Carriage Drive Mechanism Operation
  ……………………………………….. 21

  2.2 Digital ICE Function Operation
  ………………………………………………………………..
  222.2.1 Digital ICE for Film
  Overview………………………………………………………….
  22

  2.3 Operation Principle of Electric
  Circuit……………………………………………………….
  23

  Chapter 3 TROUBLESHOOTING3.1 Overview
  ……………………………………………………………………………………………….
  25

  3.1.1 Self-Diagnosing
  ………………………………………………………………………………
  253.2
  Troubleshooting………………………………………………………………………………………
  25

  Chapter 4 DISASSEMBLY / ASSEMBLY4.1 Overview
  ……………………………………………………………………………………………….
  29

  4.1.1
  Precautions……………………………………………………………………………………..
  294.1.2 Recommended Tools
  ……………………………………………………………………….
  294.1.3 Recommended
  Screws……………………………………………………………………..
  29

  4.2 Disassembly Procedure
  ……………………………………………………………………………
  304.2.1 Removing the TPU Unit
  …………………………………………………………………..
  314.2.2 Removing the Upper Housing
  …………………………………………………………..
  324.2.3 Removing the Carriage
  Unit……………………………………………………………..
  334.2.4 Removing the Panel Board
  ……………………………………………………………….
  354.2.5 Removing the Main Board
  ……………………………………………………………….
  364.2.6 Removing the Power Switch
  …………………………………………………………….
  384.2.7 Removing the Panel
  FFC………………………………………………………………….
  394.2.8 Removing the Driven Pulley, Driven Pulley Spring, and the
  Driven Pulley

  Holder Assy.
  ………………………………………………………………………………….
  404.2.9 Removing the CR Motor Unit, Motor Timing Belt, and the CR
  Timing Belt…. 414.2.10 Removing TPU Lower Housing
  ………………………………………………………
  434.2.11 Removing the Sensor Board
  ……………………………………………………………
  444.2.12 Removing the Hinge Assy.
  ……………………………………………………………..
  444.2.13 Removing the TPU Unit
  Cable………………………………………………………..
  454.2.14 Removing the DRV Board
  ……………………………………………………………..
  464.2.15 Removing the TPU Carriage Unit
  ……………………………………………………
  464.2.16 Removing the SUB-C Board, LM-B Board
  ……………………………………… 484.2.17 Removing the
  TPU CR
  Motor…………………………………………………………
  50

  Chapter 5 ADJUSTMENT5.1 Overview
  ……………………………………………………………………………………………….
  53

  5.1.1 Adjustment item
  ……………………………………………………………………………..
  535.1.2 Adjustment
  method………………………………………………………………………….
  53

• EPSON Perfection V500 Photo Revision A

  7

  Chapter 6 MAINTENANCE6.1 Overview
  ……………………………………………………………………………………………….
  55

  6.1.1
  Cleaning…………………………………………………………………………………………
  556.1.2
  Lubrication……………………………………………………………………………………..
  55

  Chapter 7 APPENDIX7.1
  Connectors……………………………………………………………………………………………..
  59

  7.1.1 Connector Reference Table
  ………………………………………………………………
  597.1.2 Connector Configuration
  ………………………………………………………………….
  59

  7.2 Exploded Diagram / Parts List
  ………………………………………………………………….
  607.3 Circuit Diagrams
  …………………………………………………………………………………….
  61

• C H A P T E R

  1PRODUCT DESCRIPTION

• EPSON Perfection V500 Photo Revision A

  PRODUCT DESCRIPTION Features 9

  1.1 FeaturesThe main features of the EPSON Perfection V500 Photo
  are as follows.

  High Quality Optical Resolution

  6400 dpi (with 12-line color CCD, 170,880 pixels)

  Pixel Depth 16 bits per pixel (input and output)

  High-Speed Scanning 14 seconds for monochrome 15 seconds for
  color

  NOTE: When scanning A4 document at 300 dpi in the draft mode
  with the host of the following conditions; Pentium-4, 3.2GHz, 1GB
  RAM, Windows XP, Photoshop 7.0E.

  Easy-To-Use EPSON Creativity Suites

  Supports for a wide variety of file types; BMP, JPEG, TIFF,
  PICT, PDF

  Thumbnail view support Link indicator function for easy
  scanning

  EPSON Scan Graphic user interface:

  Full Auto Mode (for scanning both film and reflective document),
  Home Mode and Professional Mode

  Stand-alone application: In addition to TWAIN driver function,
  saving images without using a graphic application such as Photoshop
  is available

  Automatic detection of up/down sides of an image PDF
  creation

  Scans multiple pages and creates a PDF file with the touch of a
  button. A font-embedded PDF that enables keyword searching and a
  high compression PDF also can be created.

  Improved color restoration function for negative films

  Fringe Correction for film scanning at lower than 3200 dpi
  Supports up to 21,000 x 30,000 pixels of scanning size (only
  for

  reflective document)

  Lid-type TPU (equipped as standard) Built-in 2.7″ x 9.3″
  transparency unit (TPU) enables to scan the following films

  35mm x 12 frames (strip films) or 35mm x 6 frames x 2 columns
  positive or negative films

  35mm x 4 frames (mounted films) positive films Medium format
  (120/220) positive or negative films

  Interface Supports USB 2.0 High Speed

  Option A4 and legal size document can be scanned with the
  optional ADF unit

• EPSON Perfection V500 Photo Revision A

  PRODUCT DESCRIPTION Specifications 10

  1.2 Specifications

  BASIC SPECIFICATIONS

  Table 1-1. Basic SpecificationsScanner type Flatbed, color

  Scanning method Moving carriage, stationary document

  Photoelectric device 12-line color CCD with micro lens

  Maximum scanning range

  Reflective 216 x 297 mm (8.5 x 11.7)

  Film 68.58 x 236.9 mm (2.7 x 9.3)

  Maximum document size

  Reflective A4 or US letter size

  Film 35 mm (135) strip film x 12 frames (positive and negative
  films) 35 mm (135) mounted film x 4 frames (positive films) Medium
  format film (120/220) x 1 frame (positive and negative

  films)

  Maximum effective pixels 54,400 (main) x 74,880 (sub) pixels at
  6400 dpi

  Maximum output pixels 21,000 (main) x 30,000 (sub) pixels
  (reflective document)

  Optical resolution Main scan: 6400 dpi (with 12-line CCD 170,880
  pixels)

  Sub scan: 9600 dpi (with the micro step drive)

  Output Resolution 50 to 6400 dpi in 1 dpi increments, 9600 dpi,
  12,800 dpi

  Pixel depth 16 bits per pixel (input and output)Speed
  Monochrome: 10.440 msec/line

  Full color: 10.440 msec/line (when scanning reflective document
  at 1200 dpi in draft mode)

  Interface USB 2.0 High-Speed, USB1.1

  Light source White LED

  Operation buttons 4 push buttons (Start, Copy, Scan to E-Mail,
  Scan to PDF)

  Command level ESC/I-D2

  Table 1-2. Electrical SpecificationsMain Unit

  Rated voltage 24 VDC

  Input voltage range 24 to 26.4 VDC

  Rated current 1.3 A

  Power consumption Operating 16 W (17.5W when the ADF unit is
  installed)

  Standby 7.5 W (6.5W when the ADF unit is installed)

  Sleep 4.0 W

  Power button off 0.4 W

  AC adapter

  Rated voltage 100 — 120 VAC (100 V Model)220 — 240 VAC (220 V
  Model)

  Input voltage range 100 — 120 VAC +/- 15% (100 V Model)220 — 240
  VAC +/- 15% (220 V Model)

  Rated input current 1.0 A at 100 VAC0.5 A at 200 VAC

  Rated input frequency 50 — 60 Hz

  Rated input frequency range 50 — 60 Hz +/- 3Hz

  Output voltage 24 VDC

  Output voltage range 24 — 26.4 VDC

  Rated output current 1.3 A

  Current resistance 500 VDC: > 100 M (AC input terminal and DC
  output terminal)

  Voltage resistance 3000 VAC for 1 min. (AC input terminal and DC
  output terminal)

  TPU

  Rated voltage 24 VDC

  Input voltage 24 — 26.4 VDC

  Input current 0.3 A at 24 V0.07 A at 5 V

• EPSON Perfection V500 Photo Revision A

  PRODUCT DESCRIPTION Specifications 11

  EMC AND SAFETY STANDARDS COMPLIANCE

  ENERGY CONSERVATION

  International Energy Star Program compliant

  STATIC ELECTRICITY

  Contact discharge: 2 kV, 4kV, 5kV Air discharge: 2 kV, 4kV, 8kV,
  10kV

  ENVIRONMENTAL

  OPERATING CONDITIONS

  Ordinary office or home conditions; avoid extreme dust, direct
  sunlight, and strong light sources.

  RELIABILITY (MCBF)

  Main unit: 30,000 cycles of carriage movement TPU: 21,000 cycles
  of TPU carriage movement

  SUPPORTED DOCUMENT

  Reflective document Photographs, printed materials, which have a
  smooth surface.

  Films 35mm x 12 frames (negative/positive strip film) 35mm x 4
  frames (negative/positive mounted film) Medium format film
  (120/220) (negative/positive)

  Scanner 100 V FCC Part 15 Subpart B Class B (USA)
  CAN/CSA-CEI/IEC CISPR 22 (Canada) CNS13438 Class B, CNS14336
  (Taiwan)

  200 V EN55022 Class B, EN55024 (EU) GOST-R (IEC60950-1,
  IEC60825-1, CISPR 22) (Russia) GB4943, GB9254 Class B, GB17625.1
  (China) KN22 Class B, KN61000-4-2/-3/-4/-5/-6/-11 (Korea) AS/NZS
  CISPR22 Class B (Australia)

  AC Adaptor 100 V FCC Part 15 Subpart B Class B, UL60950-1 (USA)
  CAN/CSA-C22.2 No.60950-1

  CAN/CSA-CEI/IEC CISPR 22 (Canada) NOM-019-SCFI-1998 (Mexico)
  CNS13438 Class B, CNS14336 (Taiwan)

  200 V EN60950-1, EN55022 Class B, EN55024, EN61000-3-2,
  EN61000-3-3 (EU)

  EN60950-1 (German) IEC60950-1 (Singapore / Hong Kong / Argentina
  / Saudi

  Arabia) GOST-R (IEC60950-1, CISPR 22) (Russia) GB4943, GB9254
  Class B, GB17625.1 (China) K60950, KN14, KN14-1 (Korea) AS/NZS
  60950.1, AS/NZS CISPR22 Class B (Australia)

  Table 1-3. Environmental Conditions

  Scanner unit ADF (Option)

  TemperatureOperation 50 to 95 F (10 to 35 C) 50 to 89.6 F (10 to
  32 C)Storage -13 to 140 F (-25 to 60 C) -4 to 140 F (-20 to 60
  C)

  Humidity (non-condensing)

  Operation 10% to 80% 20% to 80%

  Storage 10% to 85%

• EPSON Perfection V500 Photo Revision A

  PRODUCT DESCRIPTION Operating Specifications 12

  1.3 Operating Specifications Operating System Compatibility

  1.4 InterfaceThe interfaces of this scanner are shown below.

  Figure 1-1. Interface

  USB INTERFACE

  Interface type Universal Serial Bus Specification Revision 2.0
  Vendor ID: 04B8h Product ID: 0130h

  Connector type One self-powered receptacle, Type B. Must be
  connected directly to the host or to tier 1 in a hub with a
  recommended USB cable.

  Interface Operating System

  USB 1.1 I/F Microsoft Windows Vista Microsoft Windows XP
  Home/Professional/Professional x64 Microsoft Windows 2000
  Professional Microsoft Windows 98/98SE/Me

  (Pre-installed model or upgrade of Windows 98/Me/2000
  Professional pre-installed model)

  Mac OS X 10.2.8 or later (supports by using Universal
  Binary)

  USB 2.0 I/F Microsoft Windows Vista Microsoft Windows XP
  Home/Professional Microsoft Windows 2000 Professional

  (Pre-installed model equipped with USB 2.0 interface as standard
  or upgrade of Windows 2000 Professional pre-installed model.
  Microsoft USB2.0 driver is required )

  Mac OS X 10.2.8 or later (equipped with USB 2.0 interface as
  standard)

  TPU Unit Connector

  AC Input

  USB2.0

• EPSON Perfection V500 Photo Revision A

  PRODUCT DESCRIPTION Exterior Specifications 13

  1.5 Exterior Specifications

  1.5.1 Explanation of Switches Start Button

  Starts the EPSON Smart Panel.

  Copy Button Prints photos and makes prints from films.

  Scan to E-mail Button Sends the scanned image by an e-mail.

  Scan to PDF Button Starts scanning and stores the scanned
  data.

  1.5.2 Explanation of LED Indicators Status LEDLocated to the
  left of the Start Button. Indicates scanner statuses with a green
  or orange light as shown in the table below.

  Note *1 : Warm up, scanning, initializing, etc.

  *2 : Certain error conditions, such as Option Error, may not
  cause the Status LED to turn orange.

  Figure 1-2. Buttons and LEDs

  LED Indication Status

  Lit Green Ready

  Flashing green slowly Busy*1

  Flashing orange fast Error*2

  Off Operate off:

  Scan to PDF Button Status LEDCopy Button

  Scan to E-mail Button Start Button

  Power Switch

• EPSON Perfection V500 Photo Revision A

  PRODUCT DESCRIPTION Exterior Specifications 14

  1.5.3 Dimensions Dimensions and Weight Dimensions 272 x 475 x
  113mm (W x D x H) Weight Approx. 4.0 kg (without AC adaptor)

  4.113 kg (with AC adaptor)

  External Drawing

  Figure 1-3. External Dimensions of Perfection V500 Photo

  Unit: mm

  73113272

  4

  7

  5

• EPSON Perfection V500 Photo Revision A

  PRODUCT DESCRIPTION Exterior Specifications 15

  1.5.4 Maximum Document Size and Placement

  REFLECTIVE DOCUMENT

  Size : 8.5 in (216 mm) W x 11.7 in (297 mm) H

  Figure 1-4. Reflective Document Scanning Range

  TRANSPARENT DOCUMENT

  Size : 2.7 in (68.58 mm) W x 9.33 in (236.9 mm) H

  Figure 1-5. Transparent Document Scanning Range

  8.5 in (216 mm) 1 0.5 mm

  1.6 0.5 mm

  1

  1

  .

  7

  i

  n

  (

  2

  9

  7

  m

  m

  )

  Scanning home position

  Front

  2.7 in (68.58 mm)67.56 mm

  13.48 mm

  9

  .

  3

  3

  i

  n

  (

  2

  3

  6

  .

  9

  m

  m

  )

  Front

  Scanning home position

• EPSON Perfection V500 Photo Revision A

  PRODUCT DESCRIPTION Control Codes 16

  1.6 Control CodesThe following table is the list of control
  codes by the scanner.

  Category Command Name Code

  Execution command ID request ESC I

  Status request ESC F

  Extended status request ESC f

  Status setting request ESC S

  Scan start ESC G

  Push button status request ESC !

  Extended ID request FS I

  Scanner status request FS F

  Scanning parameter request FS S

  New scan start FS G

  Data form setting Data format setting ESC D i

  Resolution setting ESC R n1 n2

  Scanning area setting ESC A n1 n2 n3 n4

  Color setting ESC C i

  Parameter setting FS W

  Correction Processing Gamma correction setting ESC Z i

  Gamma correction table setting ESC z i d [256]

  Image Processing Threshold value setting ESC t I

  Support and Miscellaneous

  Scan mode setting ESC g i

  Initialization ESC @

  Line counter setting ESC d i

  Option control ESC e i

  Film type designation ESC N i

  Paper exit FF

  Paper loading PF

  Warm-up cancel ESC w

  Control Normal response ACK

  Abnormal response NACK

  Scanning stop CAN

  Header STX

  Category Command Name Code

• EPSON Perfection V500 Photo Revision A

  PRODUCT DESCRIPTION Error-Time Processing 17

  1.7 Error-Time ProcessingTable 1-4. Error Definition and Remedy
  List

  Category LED Indication Cause Scanner response Recovery

  Command error None An invalid command or invalid command
  parameter was detected.

  The scanner (interpreter) ignores the incorrect command or
  parameter. Current setting maintained.

  The Scanner (interpreter) returns NACK, and waits for the next
  command parameter.

  The error condition is cleared when the scanner (interpreter)
  receives a valid command.

  Fatal error Orange LED flashes rapidly The main unit is faulty.
  (the carriage does not return to the home position or any other
  mechanical error)

  Firmware downloading failed.

  The Scanner turns the LED off and stops the operation.

  The Scanner sets Bit 7 of the status bit.

  Turn the scanner off and then back on.

• C H A P T E R

  2OPERATING PRINCIPLES

• EPSON Perfection V500 Photo Revision A

  OPERATING PRINCIPLES Engine Operation Outline 19

  2.1 Engine Operation OutlineThis section explains the functions
  and operating principles of the Perfection V500 Photo Engine. The
  Engine is roughly divided into the Carriage Unit and Carriage
  Moving Mechanism.

  2.1.1 Carriage Unit outlineThe Carriage Unit can be divided into
  the CCD Sensor Board, LED Board (light source), and Mirror/Lens
  Mechanism. (Refer to Fugure 2-1, 2-2.)

  Figure 2-1. Carriage Unit Configuration

  CCD Sensor Board Forms an alternative 12-lines color CCD (R, G,
  B independent) and its control and drive circuits.

  LED Board White LED is used as a light source. Mirror/Lens
  Mechanism The beam applied to the scanned document is
  reflected,

  passes through the Mirror/Lens Mechanism in the Carriage Unit
  for correction of the beam axis, and then reaches the CCD Sensor.
  The light components R, G, B are extracted by the Color CCD Sensor
  itself, not by switching between R, G and B of the light source as
  previously.

  Figure 2-2. Mirror/Lens Mechanism

  B(main2)

  B(sub2)

  B(main1)

  B(sub1)

  G(main1)

  G(sub1)G(main2)

  G(sub2)R(main1)

  R(sub1)R(main2)

  R(sub2)

• EPSON Perfection V500 Photo Revision A

  OPERATING PRINCIPLES Engine Operation Outline 20

  2.1.2 Carriage Moving Mechanism OperationThe image data of a
  document are scanned in the combination of the main scanning
  direction (one line: CCD Sensor) and sub scanning direction
  (multiple lines: Carriage Unit movement). (Refer to Fugure
  2-3.)

  The line type color CCD Sensor can only scan the data of one
  line in the main scanning direction (in parallel with the Carriage
  Unit) at one time. To scan the data of the second and latter lines
  in the sub scanning direction, the Carriage Unit having a built-in
  CCD Sensor is moved by CR drive. The scanned data are sent to the
  Control Board. The scanning of Line n data and the processing of
  Line n-1 image data are performed consecutively at the same
  time.

  Figure 2-3. Carriage Movement

  The Carriage Unit slides along the guide rail in the sub
  scanning direction. To perform this sliding operation, the CR
  (Carriage) Motor transmits its drive power to the Timing Belt,
  which is fixed to the Carriage Unit, via the Drive Pulley and
  Deceleration Gear. The image data scanning start position is
  determined by the CR HP Sensor located on the Control Board. A
  stepping motor used as the CR Motor is driven under open loop
  control. (Refer to Fugure 2-4.)

  Figure 2-4. Carriage Operation

  Mainscanning

  1 pixelDocument

  Second lineFirst line

  Scanner Head(Carriage)

  Sub scanning (by Carriage movement)

• EPSON Perfection V500 Photo Revision A

  OPERATING PRINCIPLES Engine Operation Outline 21

  2.1.3 TPU Carriage Unit OutlineThe TPU Carriage Unit consists of
  the LM-B Board and SUB-C Board. (Refer to Fugure 2-5.)

  Figure 2-5. TPU Carriage Unit Configuration

  LM-B Board/SUB-C Board: each contain LEDs to generate visible
  and infrared light.

  2.1.4 TPU Carriage Drive Mechanism OperationThe TPU Carriage
  Unit slides along the guide shaft in the secondary scanning
  direction as the TPU CR (Carriage) Motor transmits its drive power
  to the TPU CR Timing Belt connected to the TPU Carriage Unit, via
  the Idle Pulley and Drive Pulley. (Refer to Fugure 2-6.) The TPU CR
  Motor uses a stepper motor and is driven under open loop
  control.

  Figure 2-6. TPU Carriage Operation

  SUB-C Board

  LM-B Board

  Rear

  Front

  Front

  Rear

  Drive Pulley Idle Pulley

  TPU CR Timing Belt TPU Carriage Unit

• EPSON Perfection V500 Photo Revision A

  OPERATING PRINCIPLES Digital ICE Function Operation 22

  2.2 Digital ICE Function OperationThis scanner features Digital
  ICE for Film, an image correction process that uses a combination
  of hardware and software to detect and eliminate physical flaws,
  dust or dirt, either on the Film or the scanner itself. (Film
  includes color or monochrome negative, and color positive.)

  2.2.1 Digital ICE for Film OverviewBecause of its longer
  wavelength, infrared light normally passes completely through film
  media, such as negatives or slides, during a scan. Physical flaws
  or dust, however, do block infrared light. When a film document
  with dust or physical flaws is scanned using infrared light, the
  light is physically blocked by the flaw or dust, and the resulting
  image clearly shows only the dust and/or flaws present. By
  superimposing the images scanned with infrared light and visible
  light, the Film-ICE software is able to detect the inconsistency in
  the digitized data caused by the flaw and automatically remove it
  using interpolated image data to overwrite and correct the image.
  Because of the difference in wavelength between infrared light and
  visible light, a secondary lens (Glass Plate in the images below)
  must be employed during the Film-ICE visible-light scan to
  compensate for the resulting difference in the size of the images
  so that they can be superimposed accurately. The Glass Plate is
  moved into and out of position by a solenoid.

  Figure 2-7. Refraction of Infrared Light and Visible Light

  Digital ICE for Film Process Sequence1. Read the visible light
  position. Two holes in the upper housing are scanned with

  visible light in order to register the home position of image
  being scanned.

  2. Move the secondary lens (Glass Plate) into position and scan
  the film in visible-light.

  3. Read the infrared light position.

  4. Retract the secondary lens and scan the film in
  infrared-light.

  5. Electronically superimpose the images obtained from each
  light source and identify the physical flaws and/or foreign
  matter.

  6. Replace the flaw image data with image data interpolated from
  adjacent areas.

  Figure 2-8. Extraction/Correction of Dust by Film-ICE
  Function

  Lens CCDGlass Plate

  Infrared Light

  Lens CCDGlass Plate

  Visible Light

  Dirt on the Slide After Correction

• EPSON Perfection V500 Photo Revision A

  OPERATING PRINCIPLES Operation Principle of Electric Circuit
  23

  2.3 Operation Principle of Electric CircuitThe following
  electric circuits are used in the scanner.

  Main Board

  CCD Board

  Panel Board This board has four buttons (Start/Copy/Scan to
  E-mail/Scan to PDF) and LED lamp.

  Power supply The scanner is powered with 24 VDC voltage from the
  AC adapter.

  AC adapter rated voltage Rated output DC24V 1.3A Input Voltage
  AC100-120V 15% (100V)

  AC220-240V 15% (200V) Rated Input Current 1.0A (AC 100V
  system)

  0.5A (AC 200V system) Input Frequency Range 50 to 60Hz 0.3Hz
  Output Voltage DC24 to 26.4V

  The 24 VDC voltage is supplied to CN4 on the Main Board. A power
  switch is located between the DC jack and the Main Board.

  DRV Board (TPU Unit)

  Table 2-1. Main Board IC

  Name Location DetailsS1R77002B00A000 IC4 ASIC: Host base scanner
  controller

  S1R720G0F00A0 IC6 ASIC: UTM (USB2.0 interface)

  EM636165TS-7G IC3 SDRAM 1M x16bit x4bank

  TB62205FG IC1 Motor Driver + DC-DC converter CR Motor Drive +24V
  IN, +12V/+3.3V OUTAP1120SLA IC2 DC-DC converter +5V IN, +3.3V/+2.5V
  OUTM74HC595AM13TR IC5 Serial-Parallel converter

  Table 2-2. CCD Board IC

  Name Location DetailsILX562K P1 CCD

  SN74ACT244NSR IC1, IC2 CCD drive buffer

  KIA78M12F-RTF/P IC5 DC-DC converter +14.24V IN, +12V OUT

  Table 2-3. DRV Board IC

  Name Location DetailsM74HC595RM13TR IC1, IC2 8bit Shift
  Register

  LB11847L-E IC3 TPU CR Motor Driver

  CD74HC75M96 IC5 LED controller

• C H A P T E R

  3 TROUBLESHOOTING

• EPSON Perfection V500 Photo Revision A

  TROUBLESHOOTING Overview 25

  3.1 OverviewThis chapter explains the remedies for errors
  detected by the scanners self-diagnostic function, and provides a
  troubleshooting guide based on observed problems.

  3.1.1 Self-DiagnosingThis scanner has a self-diagnostic function
  that automatically diagnoses the operating status of major
  components, and uses an LED indication to show the error status.
  This function detects the following error statuses shown in the
  table below. The corrective action is also listed.

  COMMAND ERROR

  FATAL ERROR

  3.2 TroubleshootingThis section provides troubleshooting
  procedures based on observed faults. Refer to Table 3-3, and choose
  the table describes the general fault indication. Within the table,
  find the Problem that most closely matches what you observe and
  follow the procedures given in the table cross referenced in the
  right-hand column.

  Table 3-1. Command ErrorLED Indication Cause Disposition

  Unidentified command is detected.

  The scanner (interpreter) ignores the incorrect command or
  parameter. The current settings are maintained.

  Scanner (interpreter) returns NACK, and waits for the next
  command or parameter.

  Recovery The error condition is canceled upon receipt of a valid
  command.

  Table 3-2. Fatal errorLED Indication Cause Disposition

  The main unit is faulty. (the carriage does not return to the
  home position or any other mechanical error)

  Firmware downloading failed.

  The Scanner turns the carriage lamp off and stops the
  operation.

  The Scanner sets Bit 7 of the status bit.

  Recovery Turn the scanner off and then back on.

  (None)

  (Rapid flashing, orange)

  Table 3-3. Trouble Phenomenon, Cause and Troubleshooting
  Table

  Problem Definition Troubleshooting Table

  Scanned image quality error. Scanned image is not clear. 3-4The
  main unit does not operate when powered-on.

  The Main Unit does not perform initialization operation. 3-5

  The host does not recognize the scanner when power is switched
  on. 3-6

  Fatal error. (The LED flashes orange.)The scanner does not
  recover from the error even after power-off and back on.

  The Carriage Unit does not operate. 3-7The LED does not light
  (main unit)

  3-8

  The TPU does not work at all. The TPU does not operate. 3-9The
  TPU Carriage Unit does not operate. 3-10

  The LED does not light (TPU unit) 3-11

  Table 3-4. Scanned Image Quality Error.

  Step Possible Cause Corrective Action

  1The Document Glass is not clean. (Image has white spots)

  Clean the glass.(Refer to 6.1.1 Cleaning)

  2The mirror in the Carriage is not clean. (Vertical bands appear
  on the image.)

  Clean the mirror.(Refer to 6.1.1 Cleaning)

  3Upper Housing failure (The white document mat is deformed or is
  not clean.)

  Replace the Upper Housing.

  4 CCD Sensor Board failure Replace the Carriage Unit.

  5 Main Board failure Replace the Main Board

  6 Carriage mechanism failure Replace the Carriage mechanism.

• EPSON Perfection V500 Photo Revision A

  TROUBLESHOOTING Troubleshooting 26

  Table 3-5. The Main Unit does not perform initialization
  operation.

  Step Possible Cause Corrective Action

  1There are some connectors that are not connected correctly

  Connect them correctly.

  Replace the Main Board

  2 CR Motor failure Replace the CR Motor.

  3 Main Board failure Replace the Main Board

  Table 3-6. The host does not recognize the scanner when power is
  switched on.

  Step Possible Cause Corrective Action1 The host computer does
  not support USB. Replace or modify the host computer.

  2 The TWAIN Driver supplied with the scanner has not been
  installed correctly.Install (reinstall) the TWAIN Driver for the
  Perfection V500 Photo.

  3 The USB cable is damaged. Replace the USB cable.

  4 Main Board failure Replace the Main Board

  Table 3-7. The Carriage Unit does not operate.

  Step Possible Cause Corrective Action1 The Carriage Lock has not
  been released. Release the Carriage Lock.

  2 The Upper Housing is not installed correctly. Install it
  normally.

  3 Connector CN1 on the Main Board is not connected.Connect it
  correctly.

  4 The Carriage FFC is not connected correctly. Connect the FFC
  correctly.

  5

  Carriage Mechanism failure Replace the Main Board

  Does the CR Motor operate normally?

  Yes Disassemble and reassemble the scanner, or replace the
  corresponding part(s).No Replace the CR Motor.

  Table 3-8. The LED does not light.

  Step Possible Cause Corrective Action

  1

  Connector CN1 on the Main Board is not connected. Connector CN1
  and CN2 on the CCD Board are not connected.

  Connect the disconnected connectors.

  2Carriage Unit failure ( The Carriage FFC is not connected to
  the Main Board and the Carriage.)

  Replace the Carriage Unit.

  3 Main Board failure Replace the Main Board

  Table 3-9. The TPU does not operate.

  Step Possible Cause Corrective Action

  1 The TPU Unit Cable is not connected to the main unit.Connect
  the Cable to the main unit.

  2 Connector CN5 is not connected to the Main Board.Connect it
  correctly.

  3 Main Board failure Replace the Main Board

• EPSON Perfection V500 Photo Revision A

  TROUBLESHOOTING Troubleshooting 27

  Table 3-10. The TPU Carriage Unit does not operate.

  Step Possible Cause Corrective Action

  1 The TPU Unit Cable is not connected to the main unit.Connect
  the TPU Cable to the main unit.

  2 The TPU Carriage Lock has not been released.Release the TPU
  Carriage Lock.

  3 The TPU Lower Housing is not installed correctly.Reinstall it
  correctly.

  4

  T

  h

  e

  T

  P

  U

  C

  a

  r

  r

  i

  a

  g

  e

  M

  e

  c

  h

  a

  n

  i

  s

  m

  F

  a

  i

  l

  u

  r

  e

  .

  The torsion springs is not attached to the TPU CR Timing Belt
  correctly.

  Attach them to the belt correctly.

  The TPU CR Motor does not move normally when powered-on with the
  TPU Lower Housing removed.

  The TPU Carriage Unit does not move normally with the TPU CR
  Motor removed.

  Replace the TPU Carriage Unit.

  5 TPU CR Motor failure Replace the TPU CR Motor.

  6 DRV Board failure Replace the DRV Board.

  7 Main Board failure Replace the Main Board

  Table 3-11. The LED of the TPU does not light

  Step Possible Cause Corrective Action

  1 The FFC is not connected to CN1 on the LM-B Board.Connect the
  FFC to CN1 on the LM-B Board and CN3 on the DRV Board.

  2 The SUB-C Board cable is not connected to CN2 on the LM-B
  Board.Connect the SUB-C Board cable to CN2 on the LM-B Board.

  3 Failure of the LM-B Board and the SUB-C BoardReplace the LM-B
  Board and the SUB-C Board.

  4 DRV Board failure Replace the DRV Board.

  5 Main Board failure Replace the Main Board

• C H A P T E R

  4DISASSEMBLY / ASSEMBLY

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Overview 29

  4.1 OverviewThis chapter explains the procedures for
  disassembling the major units and parts of the product. Unless
  otherwise explained, reassembly should be carried out in the
  reverse order of the disassembly procedure. When you have to remove
  any parts or components that are not described in this chapter,
  refer to the exploded diagram in the Appendix.

  Before starting disassembly, always read the precautions
  described in the next section.

  4.1.1 PrecautionsBefore starting the disassembly or reassembly
  of the product, read the following precautions given under the
  headings WARNING and CAUTION.

  4.1.2 Recommended ToolsTo protect this product from damage, use
  the tools indicated in the following table.

  Note : Tools whose Epson Part Number is indicated are available
  from Epson.

  4.1.3 Recommended ScrewsThe following table indicates the screws
  used in the EPSON Perfection V500 Photo Scanner.

  Before disassembling or reassembling this product, always

  disconnect the Power Cable and Interface Cable. When you have to
  work with power on for voltage measurement, etc., use extreme care
  not to get an electric shock and do the work in accordance with the
  procedures given in this manual.

  To prevent your hands from being cut by sharp edges, always wear
  gloves before starting disassembly or reassembly.

  When touching any internal components, use static
  electricity

  discharge equipment such as anti-static wrist straps. Provide
  sufficient work space for disassembling and

  reassembling. Always use only the recommended tools for
  disassembly,

  reassembly and adjustment. Be sure to tighten the screws to the
  specified torque. Use the specified grease for lubrication. Refer
  to Chapter 6 for

  details. Since a prototype was used to illustrate these
  disassembly and

  assembly procedures, the appearance of some parts may differ
  from those on an actual product. The procedures themselves,
  however, are accurate for the retail model.

  When using compressed air products; such as air duster, for
  cleaning during repair and maintenance, the use of such products
  containing flammable gas is prohibited.

  Table 4-1. Specified Tools

  Name Commercially Availability Epson Part Number

  Phillips screwdriver, No. 2 OK —

  Flat-blade screwdriver OK —

  Tweezers OK —

  Long-nose pliers OK —

  Table 4-2. Recommended Screws

  No. Name Type1 C.B.P. 3 x 6 Phillips Bind P-tite Screw, size M3,
  6 mm length

  2 C.B.P. 3 x 8 Phillips Bind P-tite Screw, size M3, 8 mm
  length

  3 C.B.P. 3 x 12 Phillips Bind P-tite Screw, size M3, 12 mm
  length

  4 C.B. 3 x 3 Phillips Bind Screw, size M3, 3 mm length

  5 C.B.P. 4 x 12 Phillips Bind P-tite Screw, size M4, 12 mm
  length

  6 C.P.F.P. 3 x 8 Phillips Pan Flange Head P-tite Screw, size M3,
  8 mm length

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Disassembly Procedure 30

  4.2 Disassembly ProcedureThis section illustrates how to remove
  the main components of this product. Unless otherwise specified,
  the reassembly procedure is the reverse of the disassembly
  procedure. For additional assembly illustrations, refer to the
  exploded diagrams in the Appendix.

  The following flowchart shows the disassembly procedure
  step-by-step, and the section and page number where the procedure
  is described.

  Figure 4-1. Disassembly Flowchart

  Start

  Removing the TPU Unit(P.31) Removing the Upper Housing(P.32)

  Removing the Carriage Unit(P.33)

  Removing the Panel Board(P.35) Removing the Main
  Board(P.36)Removing the Driven Pulley, Driven Pulley Spring, and
  the Driven Pulley

  Holder Assy.(P.40)

  Removing the Power Switch(P.38)

  Removing the CR Motor Unit, Motor Timing Belt, and the CR
  Timing

  Belt(P.41)Removing the Panel FFC(P.39)

  Removing TPU Lower Housing(P.43)

  Removing the TPU Carriage Unit(P.46)

  Removing the DRV Board(P.46) Removing the Hinge Assy.(P.44)
  Removing the Sensor Board(P.44)

  Removing the SUB-C Board, LM-B Board(P.48)

  Removing the TPU CR Motor(P.50)

  Removing the TPU Unit Cable(P.45)

  Since a prototype was used to illustrate these disassembly and
  reassembly procedures, the appearance of some parts may differ from
  those on actual product. The procedures themselves, however, are
  accurate for the retail model.

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Disassembly Procedure 31

  4.2.1 Removing the TPU Unit1. Disconnect the TPU Unit cable from
  the Main Unit.

  Figure 4-2. Removing the TPU Unit (1)

  2. Open the TPU Unit.

  3. Hold both ends of the TPU Unit and then lift and remove
  it.

  Figure 4-3. Removing the TPU Unit (2)

  TPU Unit Cable

  Main

  TPU Unit

  2

  3

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Disassembly Procedure 32

  4.2.2 Removing the Upper Housing1. Remove the TPU Unit. See
  Section 4.2.1 on page 31.

  2. Remove the four C.B.P. M3 x 12 screws that secure the Upper
  Housing to remove it.

  Figure 4-4. Removing the Upper Housing

  Viewed from the outside

  Upper Housing

  C.B.P. 3 x 12(71 kgf.cm)

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Disassembly Procedure 33

  4.2.3 Removing the Carriage Unit1. Release the Carriage Lock at
  the rear of the main unit.

  Figure 4-5. Releasing the Carriage Lock2. Remove the Upper
  Housing. See Section 4.2.2 on page 32.

  3. Move the Carriage Unit to the front of the main unit.

  Figure 4-6. Moving the Carriage Unit

  4. Disconnect the Carriage FFC from the Main Board. See Section
  4.2.5 Step 5 — Step 9

  5. Remove the two-sided tape that secure the Carriage FFC to the
  Upper Housing.

  6. Remove the Ferrite Core from the Carriage FFC.

  Figure 4-7. Removing the Carriage FFC

  Carriage Lock

  Unlock Lock

  Carriage Unit

  3

  Secure the Carriage FFC with a piece of two-sided tape at the
  position shown in Figure 4-7.

  Carriage FFC

  Tape PositionFerrite Core

  Lower Housing

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Disassembly Procedure 34

  7. Move the A part on the Driven Pulley Holder Assy. in the
  direction of the arrow and remove the CR Timing Belt from the
  Driven Pulley.

  Figure 4-8. Removing the CR Timing Belt8. Hold the Carriage Unit
  and release one end of the Carriage Shaft from the rear

  bushing of the Lower Housing, then pull the other end out of the
  front bushing of the Lower Housing.

  9. Remove the Carriage Shaft from the Carriage Unit.

  Figure 4-9. Removing the Carriage Shaft

  10. Push up the B part of the Lock Plate attached on the rear of
  the Carriage Unit to remove the Lock Plate from the Carriage
  Unit.

  Figure 4-10. Removing the Carriage UnitDriven Pulley Holder
  Assy.CR Timing Belt

  A part

  Driven Pulley

  Carriage Shaft

  Rear Bushing

  Front Bushig

  Carriage Unit

  8-2

  8-1

  Lock Plate

  B part

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Disassembly Procedure 35

  4.2.4 Removing the Panel Board1. Remove the Carriage Unit. See
  Section 4.2.3 on page 33.

  2. Pull the ground terminal out of the Carriage shaft hole of
  the Lower Housing.

  3. Lift the Panel Board and disconnect the Panel FFC Connector
  CN1, then remove the Panel Board.

  Figure 4-11. Removing the Panel Board

  Ground Cable

  Carriage Shaft Hole

  Notch

  Panel Board

  Constricted Parts and Tabs Notch

  CN1

  When reinstalling the Panel Board, pay attention to the
  followings. Put the shaft spring into the Carriage shaft hole with
  the convex

  surface of the spring faces the shaft side, and then put the
  ground terminal into the shaft hole notch.

  Figure 4-12. Attaching the Shaft Spring/Ground Terminal

  Route the ground cable through the notches as shown in Figure
  4-11.

  Insert the two constricted parts on both left and right ends of
  the Panel Board into the tabs of the Lower Housing and match the
  three notches of the board with the three tabs of the Lower Housing
  as shown in Figure 4-11.

  Carriage Shaft Hole

  Ground Terminal

  Shaft Spring

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Disassembly Procedure 36

  4.2.5 Removing the Main Board1. Release the Carriage Lock. See
  Section 4.2.3 Step 1

  2. Remove the Upper Housing. See Section 4.2.2 on page 32.

  3. Move the Carriage Unit to the front of the main unit. See
  Section 4.2.3 Step 3

  4. Remove the Carriage Lock from the Lower Housing.

  Figure 4-13. Removing the Carriage Lock5. Remove the C.B.P. M3 x
  8 and C.B.P. M3 x 12 screws that secure the Main Board

  Cover.

  Figure 4-14. Removing the Main Board Cover (1)

  6. Disengage the tab of the Main Board Cover with a flat-blade
  screwdriver or a similar tool, and lift the front side of the Main
  Board Cover.

  7. Move the Main Board Cover in the direction of the arrows to
  disengage the two tabs, and remove the Main Board Cover.

  Figure 4-15. Removing the Main Board Cover (2)

  Carriage Lock

  Main Board Cover

  C.B.P. 3 x 12(6.50.5 kgf.cm)

  C.B.P. 3 x 8(6.50.5 kgf.cm)

  1

  2

  Tab

  Tab

  Main Board Cover

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Disassembly Procedure 37

  8. Remove the four C.B.P. M3 x 8 screws that secure the Main
  Board.

  9. Disconnect the all connectors on the Main Board and remove
  the Main Board. CN1: Carriage FFC CN2: CR Motor Cable CN3: Power
  Switch Connector CN6: Panel FFC

  Figure 4-16. Removing the Main Board

  CN1

  Main Board

  CN2

  CN3

  CN6

  C.B.P. 3 x 8(6.51 kgf.cm)

  When reinstalling the Main Board Cover, match the two tabs and
  two interfaces with the holes of the Main Board Cover as shown
  below.

  Figure 4-17. Installing the Main Board Cover Screw the Main
  Board Cover in the order given in Figure 4-14. When routing the CR
  Motor Cable, pay attention to the

  following points. Route along the rib on the Lower Housing. Do
  not make the cable contact with the CR Timing Belt.

  Figure 4-18. Routing the CR Motor Cable

  I/F

  Tabs

  Rib

  CR Timing BeltCR Motor Cable

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Disassembly Procedure 38

  4.2.6 Removing the Power Switch1. Move the Carriage Unit to the
  front of the main unit. See Section 4.2.3 Step 1 —

  Step 3

  2. Disconnect the Power Switch Connector CN3 from the Main
  Board. See Section 4.2.5 Step 5 — Step 9

  3. Remove the Power Switch Connector Cable from the cable
  trench.

  Figure 4-19. Removing the Power Supply Cable

  4. Push the Power Switch toward the outside while releasing the
  two tabs, and remove the Power Switch by pushing it out through the
  hole on the Lower Housing.

  Figure 4-20. Removing the Power SwitchWhen reinstalling the
  Power Switch, route the Power Switch Connector Cable through the
  cable trench as shown in Figure 4-19.

  Cable Trench

  Power Switch Connector Cable

  Power Switch

  Tabs

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Disassembly Procedure 39

  4.2.7 Removing the Panel FFC1. Move the Carriage Unit to the
  front of the main unit. See Section 4.2.3 Step 1 —

  Step 3

  2. Disconnect the Panel FFC from the Main Board. See Section
  4.2.5 Step 1 — Step 9

  3. Move the Carriage Unit to its home position, and remove the
  two-sided tape that secure the Panel FFC.

  4. Disconnect the Panel FFC from CN1 Connector on the Panel
  Board.

  Figure 4-21. Removing the Panel FFC

  Carriage Unit

  4CN1 Panel Board

  3

  Panel FFC

  Tape Position

  When installing the Panel FFC, attach the Ferrite Core as shown
  in the figure below.

  Figure 4-22. Installing the Ferrite Core

  Secure the Panel FFC with a piece of two-sided tape at the
  position shown in Figure 4-21.

  Ferrite Core

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Disassembly Procedure 40

  4.2.8 Removing the Driven Pulley, Driven Pulley Spring, and the
  Driven Pulley Holder Assy.

  1. Remove the Carriage Unit. See Section 4.2.3 on page 33.

  2. Hold the A part of the Driven Pulley Holder Assy. and slide
  it in the direction of the arrow to remove the assy. from the two
  tabs on the Lower Housing.

  Figure 4-23. Removing the Driven Pulley Holder Assy.

  3. Remove the Driven Pulley Spring from the Driven Pulley Holder
  Assy.

  4. Remove the washer and remove the Driven Pulley from the shaft
  of the Driven Pulley Holder Assy.

  Figure 4-24. Removing the Driven Pulley and the Driven Pulley
  Spring

  Tabs

  Driven Pulley Holder Assy.

  A part

  Washer

  Driven Pulley

  Driven Pulley Spring

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Disassembly Procedure 41

  4.2.9 Removing the CR Motor Unit, Motor Timing Belt, and the CR
  Timing Belt

  1. Remove the Carriage Unit. See Section 4.2.3 on page 33.

  2. Disconnect the CR Motor Connector CN2 from the Main Board.
  See Section 4.2.5 Step 1 — Step 5

  3. Remove the ferrite core from the ferrite core holder.

  4. Remove the C.B.P. M3 x 8 and C.B.P. M3 x 10 screws that
  secure the CR Motor Unit and remove it together with the ground
  plate.

  Figure 4-25. Removing the CR Motor Unit

  CR Motor UnitPositioning Hole and Guide Pin

  CN2

  C.B.P. 3 x 8(6.51 kgf.cm)

  Ferrite Core2

  Ferrite Core Holder

  Ground Plate

  1

  C.B.P. 3 x 10 (6.51 kgf.cm)

  Positioning Hole and Guide Pin

  When install the ground plate, put the guide pin of the Lower
  Housing into the hole of the ground plate.

  When installing the CR Motor Unit, first install the ground
  plate, and then install the unit matching the guide pin and the
  hole as shown in Figure 4-25

  Be sure to attach the ferrite core to the ferrite core holder.
  Route the CR Motor Cable through the tabs and the sponge as

  shown in the figure below.

  Figure 4-26. Routing the CR Motor Cable

  CR Motor Cable Tab Sponge

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Disassembly Procedure 42

  5. Remove the torsion spring and the C.B. M3 x 3 screw that
  secure the Tensioner, and remove the Pulley.

  6. Remove the Motor Timing Belt and the CR Timing Belt from the
  CR Motor Unit in that order.

  Figure 4-27. Removing the Motor Timing Belt and the CR Timing
  Belt

  When installing the Tensioner, make sure to perform the
  Tensioner Adjustment. See Section 5.1.2.1 on page 53.

  Torsion Spring

  Tensioner

  Motor Timing Belt

  CR Timing Belt

  C.B. 3 x 3(61kgf.cm)

  Pulley

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Disassembly Procedure 43

  4.2.10 Removing TPU Lower Housing1. Remove the TPU Unit. See
  Section 4.2.1 on page 31.

  2. Slide the Housing Mat (Document Cover) to the front of the
  main unit and remove it from the four slots of the TPU Unit.

  3. Release the TPU Carriage Lock.

  Figure 4-28. Removing the Housing Mat (Document Cover)

  4. Remove the six C.B.P. M3 x 12 screws and the two C.B.P. M3 x
  8 screws that secure the TPU Lower Housing.

  Figure 4-29. Removing the TPU Lower Housing (1)5. Lift the rear
  (hinge side) of the TPU Lower Housing and slide it in the direction
  of

  the arrow to release the two tabs and remove the TPU Lower
  Housing.

  Figure 4-30. Removing TPU Lower Housing (2)

  Slots

  Unlock

  Lock

  TPU Lower HousingHousing Mat

  TabsC.B.P. 3 x 12(71 kgf.cm)

  C.B.P. 3 x 8(71 kgf.cm)

  Tabs

  5-1

  5-2

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Disassembly Procedure 44

  4.2.11 Removing the Sensor Board1. Remove the TPU Lower Housing.
  See Section 4.2.10 on page 43.

  2. Remove the C.B.P. M3 x 8 screw that secures the Sensor
  Board.

  3. Disconnect the Sensor Connector CN1 while lifting the Sensor
  Board, and remove the Sensor Board.

  Figure 4-31. Removing the Sensor Board

  4.2.12 Removing the Hinge Assy.1. Remove the TPU Lower Housing.
  See Section 4.2.10 on page 43.

  2. Remove the four C.B.P. M4 x 12 screws that secure the left
  and right Hinge Assy.s and remove them.

  Figure 4-32. Removing the Hinge Assy.

  Sensor Board

  C.B.P. 3 x 8(6.50.5kgf.cm)

  CN1

  C.B.P. 4 x 12(6.50.5kgf.cm)

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Disassembly Procedure 45

  4.2.13 Removing the TPU Unit Cable1. Remove the TPU Lower
  Housing. See Section 4.2.10 on page 43.

  2. Remove the left and right Hinges. See Section 4.2.12 on page
  44.

  3. Remove the C.B.P. M3 x 8 screw that secures the TPU Unit
  Cable.

  4. Disconnect the TPU Unit Connector CN1 from the DRV Board.

  5. Release the TPU Unit Cable from the notches shown in the
  figure below.

  Figure 4-33. Removing the TPU Unit Cable

  Notches

  Cable TieDRV Board

  CN1TPU Unit Cable

  C.B.P. 3 x 8(4.50.5kgf.cm)

  When installing the TPU Unit Cable, put the cable and the cable
  tie into the notches as shown in Figure 4-33.

  When connecting the TPU Unit Cable to the DRV Board, route the
  cable as shown in the figure below.

  Figure 4-34. Routing the TPU Unit Cable

  DRV Board

  TPU Unit Cable

  Ground

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Disassembly Procedure 46

  4.2.14 Removing the DRV Board1. Remove the TPU Lower Housing.
  See Section 4.2.10 on page 43.

  2. Remove the two C.B.P. M3 x 8 screws that secure the DRV Board
  Cover and remove the ground to remove the DRV Board Cover.

  Figure 4-35. Removing the DRV Board3. Disconnect the all
  connectors on the DRV Board and remove the DRV Board.

  CN1: TPU Unit Cable CN2: TPU Motor Connector CN4: Sensor CN3:
  DRV Inverter FFC

  4.2.15 Removing the TPU Carriage Unit1. Remove the TPU Lower
  Housing. See Section 4.2.13 on page 45.

  2. Move the TPU Carriage Unit to the center of the TPU.

  3. Remove the TPU CR Timing Belt from the TPU Driven Pulley.

  4. Remove the torsion spring.

  Figure 4-36. Removing the TPU CR Timing Belt

  GroundCN1

  CN4 C.B.P. 3 x 8CN2

  DRV Board Cover CN3

  When performing the procedure given below, be careful not to
  lose the three torsion springs that apply tension to the TPU CR
  Timing Belt.

  TPU Driven Pulley

  TPU Carriage Unit

  TPU CR Timing BeltTorsion Spring

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Disassembly Procedure 47

  5. Remove the flat washer that secures the Driven Pulley of the
  TPU CR Motor Assy. and remove the Driven Pulley and TPU CR Timing
  Belt in that order.

  Figure 4-37. Removing the TPU CR Timing Belt

  6. Disconnect CN3 connector from the DRV Board

  7. Remove the FFC peeling off the two-sided tape, and remove the
  TPU Carriage Unit.

  Figure 4-38. Removing the DRV Inverter FFC

  When performing the next step, be careful not to lose the flat
  washer that secures the Driven Pulley.

  TPU CR Motor Assy.

  TPU CR Timing Belt

  Drive Pulley

  TPU Carriage Unit

  Flat Washer

  When installing the FFC, make sure to align the positioning
  lines both on the FFC and the TPU Upper Housing as shown in Figure
  4-38, and then secure the FFC with the two-sided tape.

  When attaching the torsion springs, attach it so that the
  spring, the center rib on the TPU Upper Housing and the TPU CR
  Timing Belt fixing point are arranged in a straight line.

  Figure 4-39. Attaching the Torsion Spring

  CN3

  Positioning Lines

  DRV Inverter FFC

  Tape Position

  Torsion SpringRib on TPU Upper

  Housing

  TPU Carriage Unit

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Disassembly Procedure 48

  4.2.16 Removing the SUB-C Board, LM-B Board1. Remove the TPU
  Carriage Unit. See Section 4.2.15 on page 46.

  2. Remove the SUB-C Board and LM-B Boards in the following
  procedure.

  1. Disconnect the connectors from CN1 and CN2 on the LM-B
  Board.2. Release the FFC and cables from the hole and tabs of the
  TPU Carriage Unit.3. Lift the LM-B Board while rotating it as shown
  by the arrow, then disengage

  the two hooks securing the board edges, and remove the LM-B
  Board.

  Figure 4-40. Removing the SUB-C Board and LM-B Board (1)

  4. Remove the two C.B.P. M3 x 6 screws that secure the TPU
  Carriage Cover.

  Figure 4-41. .Removing the SUB-C Board and LM-B Board (2)5. Turn
  the TPU Carriage Unit over, and remove the TPU Carriage Cover.

  Figure 4-42. Removing the SUB-C Board and LM-B Board (3)6.
  Disengage the hook, and remove the SUB-C Board from the TPU
  Carriage

  Cover.

  Figure 4-43. Removing the SUB-C Board and LM-B Board (4)

  Cable

  LM-B Board

  CN1

  FFC

  TPU Carriage Unit

  CN2

  HookTabHole

  Positioning Hole and Guide Pin

  C.B.P. 3 x 6(71kgf.cm)

  TPU Carriage Cover

  TPU Carriage Cover

  SUB-C Board

  HookRib

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Disassembly Procedure 49

  When installing the LM-B Board and the SUB-C Board, align the
  ribs shown in the figure below with the edges of the boards, and
  secure them with the hooks.

  Figure 4-44. Installing the LM-B Board When installing the TPU
  Carriage Cover, match the

  positioning holes and the guide pins as shown in Figure 4-41.
  When installing the SUB-C Board, be sure the cables are routed

  as shown below.

  Figure 4-45. Routing the SUB-C Board Cable

  HookRib

  Back Side

  SUB-C Board Cable

  TPU Carriage Cover

  Route the SUB-C Board Cable/FFC through the ribs on the TPU
  Carriage Unit as shown in Figure 4-40.

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Disassembly Procedure 50

  4.2.17 Removing the TPU CR Motor

  1. Remove the Hinge Assy.s. See Section 4.2.12 on page 44.

  2. Remove the TPU Carriage Unit. See Section 4.2.15 on page
  46.

  3. Disconnect the TPU CR Motor Connector CN2 from the DRV
  Board.

  4. Remove the acetate tape and release the CN2 Connector Cable
  from the notch and tabs shown in Figure 4-46.

  Figure 4-46. Removing the TPU CR Motor Connector

  5. Remove the three C.P.F.P. M3 x 8 screws that secure the TPU
  CR Motor Unit and remove it.

  Figure 4-47. Removing the TPU CR Motor Unit (1)6. Remove the TPU
  CR Timing Belt from the TPU Driven Pulley and remove the

  TPU CR Motor Unit.

  Figure 4-48. Removing the TPU CR Motor Unit (2)

  When performing the procedure given below, be careful not to
  lose the three torsion springs that apply tension to the TPU CR
  Timing Belt.

  Notch

  CN2TPU CR Motor Unit

  DRV Board

  Tabs

  Acetate Tape

  C.P.F.P. 3 x 8(4.50.5kgf.cm)

  TPU CR Timing

  TPU Driven Pulley

• EPSON Perfection V500 Photo Revision A

  DISASSEMBLY / ASSEMBLY Disassembly Procedure 51

  7. Remove the three TPU CR Motor Dampers.

  8. Remove the flat washer and remove the Driven Pulley, TRU CR
  Drive Belt, and the Idle Pulley in that order.

  9. Remove the two C.B. M3 x 5 screws that secure the TPU CR
  Motor and remove it.

  Figure 4-49. Removing the TPU CR Motor Dampers and TPU CR
  Motor

  When performing the next step, be careful not to lose the flat
  washer that secures the Driven Pulley and Idle Pulley.

  Idle Pulley

  Driven PulleyFlat Washer

  C.B. 3 x 5 (91kgf.cm)

  TPU CR Motor Dampers

  Route the TPU CR Motor Cables over the Sensor Board Cables as
  shown in Figure 4-46.

  Attach the acetate tape (40+/-3mm) to the position shown in
  Figure 4-50, and secure the TPU CR Motor Cables with the tape.

  Figure 4-50. Securing the TPU CR Motor Cables

  Acetate Tape(40+/-3mm)

• C H A P T E R

  5ADJUSTMENT

• EPSON Perfection V500 Photo Revision A

  ADJUSTMENT Overview 53

  5.1 OverviewThis section explains the adjustment required when
  this product is disassembled.

  5.1.1 Adjustment itemThe adjustment item necessary for this
  product is as indicated below.

  5.1.2 Adjustment method

  5.1.2.1 Motor Timing Belt tension adjustment

  1. While pressing the pulley against the timing belt, screw the
  tensioner.

  2. Loosen the screw so that the tensioner can be moved manually,
  and attach the torsion spring as shown in Figure 5-1.

  3. Compress the torsion spring and release it. Repeat it three
  times. Then secure the tensioner with the screw while maintaining
  proper belt tension.

  Figure 5-1. Tension Adjustment

  Table 5-1. Adjustment Item

  Adjustment Item Condition

  Adjustment of Motor Timing Belt tension When the Motor Timing
  Belt is removed or loosened

  When installing the tensioner, match it with the three guide

  pins as shown in Figure 5-1. When attaching the torsion spring,
  hook its one end on the

  notch ( ) of the frame.

  Motor Timing Belt

  Torsion SpringPulley Tensioner

  Guide pinNotch of frame

• C H A P T E R

  6MAINTENANCE

• EPSON Perfection V500 Photo Revision A

  MAINTENANCE Overview 55

  6.1 OverviewThis chapter explains the maintenance work necessary
  to keep this product in the best condition and to prevent
  problems.

  6.1.1 CleaningClean the outside of the product with a neutral
  detergent, and clean its inside with a vacuum cleaner. Special care
  must be taken when cleaning the Document Glass since it affects the
  quality of image scanning. If it is dirty, wipe it with a clean,
  soft and dry cloth.

  Exterior After wetting a clean cloth with water and then
  completely squeezing water out of it, wipe the exterior with that
  close. If the exterior is extremely dirty, wipe it with a cloth
  moistened with a small amount of detergent.

  Document Glass Clean it with a clean, dry cloth. When the
  Document Glass is especially dirty or has foreign matter on its
  surface, wipe it with a cloth moistened with a small amount of pure
  water. If the Document Glass has traces of wiping after cleaning,
  completely wipe it with a dry, clean cloth again.

  Scanner inside Before reinstall the Upper Housing after it had
  been removed, make sure to remove the dust inside of the scanner
  and the Upper Housing. Squirt them with plenty of air.

  6.1.2 LubricationLubrication is required when any part of the
  Carriage Unit of the scanner has been replaced or the Carriage
  moves with noticeably large operation noise. The specified grease
  is indicated in Table 6-1, and the lubrication points are shown in
  Figure.

  Table 6-1. Specified Grease

  Never use organic solvents, such as thinner and benzene,

  because they may deteriorate or degrade the plastic and rubber
  parts.

  When using compressed air products; such as air duster, for
  cleaning during repair and maintenance, the use of such products
  containing flammable gas is prohibited.

  Type Name Part Number Supplier

  Grease G-26 1080614 EPSON

  Note that a failure to strictly observe the specified amount
  of

  application will contaminate the mechanisms or lead to a
  malfunction.

  If the oil contaminate components, wipe it off with a cloth
  impregnated with alcohol and let the component dry completely
  before reassembling.

• EPSON Perfection V500 Photo Revision A

  MAINTENANCE Overview 56

  Figure 6-1. Lubricating the CR Motor Unit

  Figure 6-2. Lubricating the Driven Pulley Holder Assy

  Figure 6-3. Lubricating the Carriage Lock

  Figure 6-4. Lubricating the TPU CR Motor Assy

  [Lubrication Point]Pulley shaft of the CR Motor Unit

  [Lubrication Type]G-26

  [Lubrication Amount]Adequate dose

  [Remarks]Use a brush to apply it

  [Lubrication Point]Shaft of the Driven Pulley

  [Lubrication Type]G-26

  [Lubrication Amount]Adequate dose

  [Remarks]Use a brush to apply it

  Applying Point

  Applying Point

  Driven Pulley Holder Assy

  Applying Point

  [Lubrication Point]Concave portion of the Carriage Lock

  [Lubrication Type]G-26

  [Lubrication Amount]Adequate dose

  [Remarks]Use a brush to apply it

  [Lubrication Point]A: Idle Pulley shaft on the TPU

  CR Motor Assy.B: Driven Pulley shaft on the

  TPU CR Motor Assy.C: TPU CR Motor pinion gear

  [Lubrication Type]G-26

  [Lubrication Amount]Adequate dose

  [Remarks]Use a brush to apply it

  Carriage Lock

  Applying Point

  Applying Point:B Applying Point:A

  Applying Point:C

• EPSON Perfection V500 Photo Revision A

  MAINTENANCE Overview 57

  Figure 6-5. Lubricating the TPU Lower Housing

  Figure 6-6. Lubricating the TPU Upper Housing

  Figure 6-7. Lubricating the TPU Driven Pulley

  [Lubrication Point]Carriage guide rail on the TPU Lower
  Housing

  [Lubrication Type]G-26

  [Lubrication Amount]Adequate dose

  [Remarks]Use a brush to apply it

  [Lubrication Point]Carriage guide rail on the TPU Upper
  Housing

  [Lubrication Type]G-26

  [Lubrication Amount]Adequate dose

  [Remarks]Use a brush to apply it

  Applying Point

  Applying Point

  [Lubrication Point]Shaft of the TPU Driven Pulley

  [Lubrication Type]G-26

  [Lubrication Amount]Adequate dose

  [Remarks]Use a brush to apply it

  Applying Point

• C H A P T E R

  7APPENDIX

• EPSON Perfection V500 Photo Revision A

  APPENDIX Connectors 59

  7.1 ConnectorsThe following table indicates the connector signal
  wiring on the electrical circuit boards of this product.

  7.1.1 Connector Reference Table

  7.1.2 Connector Configuration

  Figure 7-1. Diagram of Wiring Connectors

  Board Connector Description Numberof Pins

  Main Board

  CN1 CCD Board 29

  CN2 CR Motor 4

  CN3 Power Switch 2

  CN4 AC Input 3

  CN5 DRV Board 8

  CN6 Panel Board 7

  CN8 USB2.0 4

  Panel BoardCN1 Main Board 7

  CN2 GND —

  CCD Board

  CN1 Main Board 29

  CN3 Solenoid 2

  CN4 LM Board 6

  DRV Board

  CN1 Main Board 8

  CN2 TPU CR Motor 4

  CN3 LM-B Board 5

  CN4 SUB Board 4

  SUB Board(TPU HP Sensor) CN1

  DRV Board 4

  LM Board CN1 CCD Board 6

  LM-B BoardCN1 DRV Board 5

  CN2 SUB-C Board —

  CCD Board Panel Board

  LM Board

  AC Input

  Power Switch

  CR Motor

  USB2.0 CN1

  CN8 CN5 CN4

  CN3

  CN1 CN6

  CN2

  CN1

  CN4

  CN1

  CN1

  CN2

  Main Board

  CN3

  CN3

  CN2

  CN1SUB Board

  DRV Board

  Solenoid

  LM-B Board

  TPU CR Motor

  SUB-C Board

  CN2CN1CN4

• EPSON Perfection V500 Photo Revision A

  APPENDIX Exploded Diagram / Parts List 60

  7.2 Exploded Diagram / Parts ListThis manual does not provide
  exploded diagrams or parts list.

  For the information, see SPI (Service Parts Information).

• EPSON Perfection V500 Photo Revision A

  APPENDIX Circuit Diagrams 61

  7.3 Circuit DiagramsThe control electrical circuit diagrams of
  this product are shown on the following pages.

  Main Board Panel Board DRV Board Image Sensor Board SUB Board
  SUB-C Board LM Board LM-B Board

• Model : GT-X770,Perfection V500 PhotoBoard : Main BoardRev. :
  ESheet : 1/1

• Model : GT-X770,Perfection V500 PhotoBoard : Panel BoardRev. :
  ASheet : 1/1

• Model : GT-X770,Perfection V500 PhotoBoard : DRV BoardRev. :
  BSheet : 1/1

• Model : GT-X770,Perfection V500 PhotoBoard : ISN BoardRev. :
  ESheet : 1/1

• Model : GT-X770, Perfection V500 PhotoBoard : SUB BoardRev. :
  ASheet : 1/1

• Model : GT-X770, Perfection V500 PhotoBoard : SUB-C BoardRev. :
  ASheet : 1/1

• Model : GT-X770,Perfection V500 PhotoBoard : LM BoardRev. :
  BSheet : 1/1

• Model : GT-X770,Perfection V500 PhotoBoard : LM-B BoardRev. :
  BSheet : 1/1

  EPSON Perfection V500 PhotoPRODUCT DESCRIPTION1.1 Features1.2
  Specifications1.3 Operating Specifications1.4 Interface1.5 Exterior
  Specifications1.5.1 Explanation of Switches1.5.2 Explanation of LED
  Indicators1.5.3 Dimensions1.5.4 Maximum Document Size and
  Placement

  1.6 Control Codes1.7 Error-Time Processing

  OPERATING PRINCIPLES2.1 Engine Operation Outline2.1.1 Carriage
  Unit outline2.1.2 Carriage Moving Mechanism Operation2.1.3 TPU
  Carriage Unit Outline2.1.4 TPU Carriage Drive Mechanism
  Operation

  2.2 Digital ICE Function Operation2.2.1 Digital ICE for Film
  Overview

  2.3 Operation Principle of Electric Circuit

  TROUBLESHOOTING3.1 Overview3.1.1 Self-Diagnosing

  3.2 Troubleshooting

  DISASSEMBLY / ASSEMBLY4.1 Overview4.1.1 Precautions4.1.2
  Recommended Tools4.1.3 Recommended Screws

  4.2 Disassembly Procedure4.2.1 Removing the TPU Unit4.2.2
  Removing the Upper Housing4.2.3 Removing the Carriage Unit4.2.4
  Removing the Panel Board4.2.5 Removing the Main Board4.2.6 Removing
  the Power Switch4.2.7 Removing the Panel FFC4.2.8 Removing the
  Driven Pulley, Driven Pulley Spring, and the Driven Pulley Holder
  Assy.4.2.9 Removing the CR Motor Unit, Motor Timing Belt, and the
  CR Timing Belt4.2.10 Removing TPU Lower Housing4.2.11 Removing the
  Sensor Board4.2.12 Removing the Hinge Assy.4.2.13 Removing the TPU
  Unit Cable4.2.14 Removing the DRV Board4.2.15 Removing the TPU
  Carriage Unit4.2.16 Removing the SUB-C Board, LM-B Board4.2.17
  Removing the TPU CR Motor

  ADJUSTMENT5.1 Overview5.1.1 Adjustment item5.1.2 Adjustment
  method

  MAINTENANCE6.1 Overview6.1.1 Cleaning6.1.2 Lubrication

  APPENDIX7.1 Connectors7.1.1 Connector Reference Table7.1.2
  Connector Configuration

  7.2 Exploded Diagram / Parts List7.3 Circuit Diagrams

• 11 stron
• 1.12 mb

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4. Troubleshooting
   Самые частые проблемы, касающиеся Epson perfection v500 photo scanner и методы их решения. Это очень полезная часть руководства по обслуживанию — она позволит Вам сэкономить много времени на поиск решений. 90% проблем с Epson perfection v500 photo scanner повторяется у многих пользователей.
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   Информация, касающаяся количества потребляемой энергии, а также рекомендации, касающиеся установки и питания Epson perfection v500 photo scanner. Прочитайте, чтобы оптимально пользоваться Epson perfection v500 photo scanner и не использовать большего количества ресурсов, нежели это необходимо для правильной работы изделия.
6. Специальные функции Epson perfection v500 photo scanner
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