Canon LV-S3E/D78-5423 Service Manual
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Canon LV-S3E/D78-5423 Service Manual

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English Edition

SERVICE MANUAL

By Portable Document Format
LV-S3U/D78-5422
LV-S3E/D78-5423
DY8-1785-421 500
PREFACE
0
1
General
2
Repair
Adjustment
3
4
Troubleshooting
Parts Catalog
Electrical Diagrams
5
5
Electrical Diagrams
6

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Summary of Contents for Canon LV-S3E/D78-5423

  • Page 1: Service Manual

    English Edition PREFACE General SERVICE MANUAL Repair By Portable Document Format Adjustment LV-S3U/D78-5422 Troubleshooting LV-S3E/D78-5423 Electrical Diagrams Parts Catalog Electrical Diagrams DY8-1785-421 500...
  • Page 2 CANON Multimedia Projector LV-S3U D78-5422 LV-S3E D78-5423 SERVICE SMANUAL...
  • Page 3 Technical Documents Application This CD-ROM is issued by Canon Inc. for qualified persons to learn technical theory and product repair. This CD-ROM covers all localities where the products are sold. For this reason, there may be information in this CD-ROM that does not apply to the product sold in your locality.
  • Page 4 PREFACE 1. Service Manual Composition This manual contains information on servicing the product. It has the following sections. Part 1 General Information Provides the basic information needed to understand the product. (Operating instructions are not included. Refer to the product's instruction book if necessary.) Part 2 Repair Information Provides information for disassembly, reassembly, and adjustment of the product, about...
  • Page 5 3. Tools & Test Equipment The following tools and equipment are required to perform disassembly, reassembly and adjustment. 1) Special Tools None 2) General Purpose Tools (Commercially available, but can be purchased with the following numbers.) Description Tool No. Specification Remarks Ball Driver CY9-5002-000...

  • Page 6: Table Of Contents

    CONTENTS Page Part 1: General Information 1. FEATURES ...................... 1-1 1.1 Development Objective ................1-1 1.2 Product Overview ..................1-1 1.3 Main Features ..................1-2 2. SPECULATIONS ..................... 1-3 2.1 Type ......................1-3 2.2 LCD Panels ....................1-3 2.3 Optics ....................... 1-3 2.4 Images .....................
  • Page 7 3.1 Side Panel Removal ................2-5 3.2 Cabinet Top Removal ................2-5 3.3 Main Board Removal ................2-6 3.4 Rear Panel, AV Board and FN903 Removal ........... 2-6 3.5 Thermal SW Removal ................2-7 3.6 Optical Unit Removal ................2-7 3.7 Cabinet Front, R/C Board and Speaker Removal ........
  • Page 8 Part 4: Troubleshooting 1. TROUBLESHOOTING ..................4-1 1.1 No Power ....................4-1 1.2 No Picture ....................4-4 1.3 No Sound ....................4-6 2. CONTROL PORT FUNCTIONS ..............4-7 2.1 System Control & I/O Port Table (IC301) ..........4-7 2.2 IIC Bus D/A Converter (IC3551, M62393FP) ........... 4-8 2.3 IIC Bus D/A Converter (IC3561, M62392FP) ...........

  • Page 9: Part 1: General Information

    Part 1 General Information...

  • Page 10: Features

    However, drastic price cuts are affecting the entire market, and the competitiveness of current models is declining. In response, Canon decided to develop a new compact, low-price model. Employing its original optical technologies, Canon has developed a micro-portable-class model featuring compact and high brightness that will enable Canon to expand its market share.

  • Page 11: Main Features

    1.2× wide zoom lens capable of 100-inch projection at 3.2 meters The projector's new compact lens, which was developed by Canon, employs two both sided aspherical lenses to achieve both compactness and high image quality. Capable of 100-inch projection at 3.2 meters, the projector produces high-quality images with...

  • Page 12: Speculations

    Part 1: General Information 2. SPECULATIONS 2.1 Type 1. Type Projector Micro portable class 2. Product class 3. Imaging Device Transmissive type LCD panel 2.2 LCD Panels 1. Drive system Polysilicon-TFT active matrix 2. Micro-lens Attached 11.2mm × 8.5mm (0.5'' type, aspect ratio 4:3), 3.

  • Page 13: Mechanisms

    Part 1: General Information 2.6 Mechanisms 1. Adjustable feet Can be adjusted to raise the main unit a maximum of 8° 0.8W, Monaural 2. Built in speaker 2.7 Connectors 1. Mini Dsub 15-pin Analog RGB/Component video/SCART 2. RCA × 1 Composite video 3.

  • Page 14: Functions

    Part 1: General Information 3. FUNCTIONS 3.1 Optics Zoom and focus The zoom ratio of the projection lens of this product is 1.2-times. Both the zoom and focus can be adjusted manually. Projection distance and projection screen size These products are capable of projecting accurately at distances between 1.3 and 6.5 meters.
  • Page 15 Part 1: General Information • Custom In this mode, users can make various video adjustments, based on one of the previous modes, to suit their personal preferences. Users can also store their Custom Mode settings. Keystone correction [KEYSTONE] Keystone correction is a function that digitally compensates for deformations in the picture shape caused by the placement of the projector.

  • Page 16: Input Signals

    Part 1: General Information Blue back display This function automatically displays a solid-blue background when there is no input signal. 3.3 Input Signals Computer input Accommodates SXGA, XGA, SVGA, VGA and MAC analog RGB inputs. For SXGA, XGA and some MAC inputs, the display is compressed. * About the detail of computer input, they are not explained separately.

  • Page 17: Mechanisms And Systems

    Part 1: General Information 3.4 Mechanisms and Systems Lamp mode selection This function selects the power consumption of the lamp. Mode Normal Silent Auto Lamp power 160W 120W Automatic control Brightness 1250lm 900lm (72% of normal) Automatic control Noise level 37dB A 32dB A Variable...

  • Page 18: Connectors

    Part 1: General Information Graphical user interface The graphical user interface allows users to make adjustments easily while watching the display on the screen. * The display language can be selected from one of 12 languages (English, German, French, Spanish, Italian, Portuguese, Dutch, Swedish, Chinese, Korean, Russian, and Japanese).

  • Page 19: Accessories

    This cable is used to input analog RGB video signals from computers and other devices. 4.2 Replacement Parts Canon's replacement lamp: LV-LP20 The LV-LP20 is only ready for the LV-S3. An indicator will light when the lamp should be replaced.

  • Page 20: Precautions

    Part 1: General Information 5. PRECAUTIONS Do not unplug the projector after turning off the lamp until the cooling fan stops. Not allowing the projector to cool sufficiently may damage the unit. * The hot lamp will cause burns. Wait at least 45 minutes after the fan stops before replacing the lamp.

  • Page 21: Description

    Part 1: General Information 6. DESCRIPTION 6.1 Optics The optical system employs a compact zoom lens, 0.55-type (0.5-type, nominally) liquid-crystal panels with microlenses, an internal optical system optimized for panel's size and a 160-watt UHP lamp. This optical system is the key behind this compact, micro-portable projector. Disapproval to reproduce optical drawing 1.2×...

  • Page 22: Images

    Part 1: General Information Although the projection lens's zoom ratio of 1.2× for the LV-S3 is less than the 1.4× for the LV-S2, the length and diameter are both 81% that of LV-S2, thus greatly improving compactness. Similarly, the optical box was also made smaller and lighter. 6.2 Images Auto-grayscale, progressive display and logo capture were added as new features for the LV-S2.

  • Page 23: Design

    6.5 Design By balancing a layout that focuses on compactness and lightweight, heat countermeasures for achieving high brightness and stylish presentation, Canon has created a projector that can be easily used everywhere from offices that are bright with outside light to "home theaters" for enjoying movies.

  • Page 24: Part 2: Repair Information

    Part 2 Repair Information...

  • Page 25: Safety Instructions

    Part 2: Repair Information 1. SAFETY INSTRUCTIONS The following precautions must be observed during servicing and inspection. Observe all safety precautions. Comply with all caution and safety-related notes provided on the cabinet back, cabinet bottom, inside the cabinet, on the chassis or components, as well as the precautions shown in the instruction manual during servicing.

  • Page 26: Circuit Protections

    Part 2: Repair Information 2. CIRCUIT PROTECTIONS This projector provides the following circuit protections to operate in safety. If the abnormality occurs inside the projector, it will automatically turn off by operating one of the following protection circuits. 2.1 Fuse Filter Board A fuse is located inside of the projector.

  • Page 27: Lamp Cover Switch

    Part 2: Repair Information 2.3 Lamp Cover Switch Lamp Cover Switch The lamp cover switch (SW8801) cuts off the Lamp Cover drive signal to the lamp circuit when the lamp cover is removed or no close completely. After opening the lamp cover for replacing the lamp ass’y, place the lamp cover correctly otherwise the projector can not turn on.

  • Page 28: Air Filter Care And Cleaning

    Part 2: Repair Information 2.5 Air Filter Care and Cleaning The removable air filter prevents dust from accumulation on the surface of the projection lens and projection mirror. Should the air filters become clogged with dust particles, it will reduce the cooling fan’s effectiveness and may result in internal heat build up and adversely affect the life of the projector.

  • Page 29: Mechanical Disassemblies

    Part 2: Repair Information 3. MECHANICAL DISASSEMBLIES Mechanical disassemble should be made following procedures in numerical order. Following steps show the basic procedures, therefore unnecessary step may be ignored. The parts and screws should be placed exactly the same position as the original otherwise it may cause loss of performance and product safety.

  • Page 30: Main Board Removal

    Part 2: Repair Information 3.3 Main Board Removal Spacer sheet 1. Remove 4 screws (M3x6) to take the Main Board Main Board upward. Fig. 2-7 3.4 Rear Panel, AV Board and FN903 Removal 1. Remove 1 screw A (T3x8) and 1 screw B (M4x4) to take the Rear Panel ass’y off. 2.

  • Page 31: Thermal Sw Removal

    Part 2: Repair Information 3.5 Thermal SW Removal 1. Remove 1 screw (M3x6) Thermal SW Cover to take the Thermal Switch (SW902) and the Cover Spacer off. Thermal SW (SW902) Lamp Cover Spacer Fig. 2-9 3.6 Optical Unit Removal Lamp Holder 1.

  • Page 32: Cabinet Front, R/C Board And Speaker Removal

    Part 2: Repair Information 3.7 Cabinet Front, R/C Board and Speaker Removal 1. Remove 4 screws A (M3x6) to take the Cabinet Front off. 2. Remove 1 screw B (T3x6) to the R/C Board on the Cabinet Front. Cabinet Front 3.

  • Page 33: Lamp Ballast Unit And Filter Board Removal

    Part 2: Repair Information 3.9 Lamp Ballast Unit and Filter Board Removal 1. Remove 1 screw A (M4x4) to take the Earth cable off. Spacer Sheet 2. Remove 2 screws B (T3x8) to take the Lamp Lamp ballast Board Ballast Unit and the Filter Board off. 3.

  • Page 34: Fn902, Fn905 And Sensor Board Removal

    Part 2: Repair Information 3.11 FN902, FN905 and Sensor Board Removal 1. Remove 1 screw A (T3x8) to take the Duct under the Panel. 2. Remove 1 screw B (T3x8) to take the Holder with the Fans (FN902 and FN905) off. 3.

  • Page 35: Optical Parts Disassemblies

    Part 2: Repair Information 4. OPTICAL PARTS DISASSEMBLIES Before taking this procedure, remove Cabinet Top, Main Board and Optical Unit following to the “Mechanical Disassemblies”. 4.1 Lamp Holder Removal 1. Remove 2 screws to take the Lamp Holder off. Lamp Holder Optical Unit Box Fig.

  • Page 36: Polarized Glass-In Removal

    Part 2: Repair Information 4.3 Polarized Glass-In Removal 1. Remove each screw to take the polarized glass-in R/G/B off. Note: The polarized glass-in_red is sticked on the condenser lens_red. So, it Polarized glass_Red Polarized glass cannot be removed separately. _Green and Blue Polarized glass_Red Polarized...

  • Page 37: Locations And Directions

    Part 2: Repair Information 4.5 Locations and Directions When the optical parts in the optical unit Key No. Description mounting or assembling, the parts must be Integrator lens (IN) mounted in the specified location and direction as Mirror (W) shown in figure below. Integrator lens (OUT) PBS (polarizing beam splitter) Condenser lens (IN)

  • Page 38: Lcd Panel/Prism Ass'y Replacement

    Part 2: Repair Information 5. LCD PANEL/PRISM ASS'Y REPLACEMENT 5.1 LCD Panel/Prism Ass'y Removal 1. Remove 4 screws to take the Projection Lens off. Projection Lens Zoom Lever Panel/Prism Ass'y Fig. 2-22 5.2 LCD Panel/Prism Ass'y Attachment 1. Tighten 4 screws to fix the Projection Lens securely, making sure that the zoom lever is downside.

  • Page 39: Cleaning

    Part 2: Repair Information 6. CLEANING After long periods of use, dust and other particles will accumulate on the LCD panel, prism, mirror, polarized glass, lens, etc., causing the picture to darken or color to blur. If this occurs, clean the inside of optical unit. WARNING Remove dust and other particles using air spray.

  • Page 40: Lamp Replacement

    Part 2: Repair Information 7. LAMP REPLACEMENT • Allow a projector to cool, for at least 45 minutes before you open Lamp Cover. The inside of a projector can become very hot. WARNING • For continued safety, replace with a lamp assembly of the same type. •...
  • Page 41 Part 2: Repair Information [Recommendation] Should the air filter become clogged with dust particles, it will reduce the cooling fan’s effectiveness and may result in internal heat build up and short lamp life. We recommend cleaning the air filter after the projection lamp is replaced. Refer to “Air Filter Cleaning”.

  • Page 42: Part 3: Adjustment

    Part 3 Adjustment...

  • Page 43: Electrical Adjustments

    Part 3: Adjustment 1. ELECTRICAL ADJUSTMENTS Memory IC replacement IC1841 on the main board stores the data for the service adjustments, and should not be replaced except for the case of defective device. If replaced, it should be performed the re-adjustments following to the “Electrical Adjustments”.

  • Page 44: Service Adjustment Menu Operation

    Part 3: Adjustment 1.2 Service Adjustment Menu Operation [To enter the service mode] To enter the “Service Mode”, press and hold the MENU and INPUT button on the projector at the same time for more than 3 seconds, or press and hold the MENU button on the remote control unit for more than 20 seconds.

  • Page 45: Service Adjustment Data Table

    Part 3: Adjustment 1.3 Service Adjustment Data Table These initial values are the reference data written from the CPU ROM to memory IC when replaced new memory IC. The adjustment items indicated with “ ” are required to readjust following to the “Electrical adjustments”. Other items should be used with the initial data value.
  • Page 46 Part 3: Adjustment Initial ItemNo. Name Device YCbCr Video Detail 480i(+) 480p(+) NTSC Note: 480i(+) = 480i & 575i, 480p(+) = 480p & HDTV Range Temp. Low ( Sensor 1) 10-100 Temp High (Sensor 1) 30-100 Temp. Error (Sensor 1) 30-100 Temp.
  • Page 47 Part 3: Adjustment Initial ItemNo. Name Device YCbCr Video Detail 480i(+) 480p(+) NTSC Note: 480i(+) = 480i & 575i, 480p(+) = 480p & HDTV Expand Ratio (Horizontal) 575i PIXEL Progressive OFF Position (Horizontal) 575i PIXEL Position (Vertical) 575i PIXEL Expand Ratio (Vertical) 480p PIXEL For Component 480p mode Expand Ratio (Horizontal) 480p...
  • Page 48 Part 3: Adjustment Initial ItemNo. Name Device YCbCr Video Detail 480i(+) 480p(+) NTSC Note: 480i(+) = 480i & 575i, 480p(+) = 480p & HDTV Position (Horizontal) SCART PIXEL Position (Vertical)SCART PIXEL Gamma Shift Combination ON/OFF 0: each source separate / 1: PC source only separate PC Frame Lock OFF 0: ON for all source / 1: OFF at PC Auto Grayscale black control start point...

  • Page 49: Circuit Adjustments

    Part 3: Adjustment 2. CIRCUIT ADJUSTMENTS The each circuit has been made by the fine adjustment at factory. Do not attempt to adjust the following adjustments except requiring the CAUTION readjustments in servicing otherwise it may cause loss of performance and product safety.

  • Page 50: Pc Pedestal Adjustment

    Part 3: Adjustment 2.1 PC Pedestal Adjustment 1. Receive the 16-step gray scale computer signal with COMPUTER IN [RGB] mode. 2. Enter the service mode. 3. Connect an oscilloscope to test point “TPR1” (+) and chassis ground (–). 4. Select item no. “275” and change data value to adjust the pedestal level and black level to be the same level.

  • Page 51: Video Gain Adjustment

    Part 3: Adjustment 2.3 Video Gain Adjustment 1. Receive the 16-step gray scale composite video signal with Video [Video] mode. 2. Enter the service mode. 3. Connect an oscilloscope to test point “TPR1” (+) and chassis ground (–). 4. Select item no. “7” and change data value to adjust waveform “a” to be minimum amplitude.

  • Page 52: Gain Adjustment

    Part 3: Adjustment 2.5 480p Gain Adjustment 1. Receive the 16-step gray scale component signal (480p format) with COMPUTER IN [COMPONENT] mode. 2. Enter the service mode. 3. Connect an oscilloscope to test point “TPR1” (+) and chassis ground (–). 4.

  • Page 53: Gamma Adjustment

    Part 3: Adjustment 2.7 Gamma Adjustment [PC-Gamma adjustment] 1. Receive the 100% whole-white computer signal with COMPUTER IN [RGB] mode. 2. Enter the service mode. 3. Measure luminance on the screen with the luminance meter. It is A for the reading of luminance meter.

  • Page 54: White Balance Adjustment

    Part 3: Adjustment 2.9 White Balance Adjustment [PC white balance adjustment] 1. Receive the 16-step gray scale computer signal with COMPUTER IN [RGB] mode. 2. Enter the service mode, select item no. “17” (Red) or “18” (Blue), and change data values respectively to make a proper white balance.

  • Page 55: Optical Adjustments

    Part 3: Adjustment 3. OPTICAL ADJUSTMENTS Before taking optical adjustments below, remove the Cabinet Top and Main Board following to the “Mechanical Disassemblies” Adjustments require a plus screwdriver, 2.0mm hex wrench and a slot screwdriver. Do not disconnect connectors K8A, K8B, K8H, K48K, K48L, K66A, K66B, CAUTION K66C, K66D, K66E and K66F on the main board, because the projector can not turn on due to operate the power failure protection.

  • Page 56: Condenser Lens Adjustment

    Part 3: Adjustment 3.2 Condenser Lens Adjustment 1. Turn the projector on by a state of without FPC cables. 2. Adjust the adjustment base of condenser lens ass’y to make color uniformity in white. White 1) If the shading appears on the left or right of the screen as shown in Fig.3-11, loosen 2 screws A with the 2.0mm hex driver, and adjust the slot B to make color uniformity...

  • Page 57: Relay Lens-Out Adjustment

    Part 3: Adjustment 3.3 Relay Lens-Out Adjustment 1. Turn the projector on by a state of without FPC cables. 2. Adjust the adjustment base of relay lens ass’y to make color uniformity in white. White 1) If the cyan bar appears on the left or right of the screen as shown in Fig.3-13, loosen Cyan 2 screws A with the 2.0mm hex driver,...

  • Page 58: Test Points And Locations

    Part 3: Adjustment 4. TEST POINTS AND LOCATIONS Main board K66A K66B IC9401 IC3571 IC3561 IC401 IC3551 IC3501 IC501 IC561 TPR1 TPR1 TPB1 TPB1 TP2561 IC531 K25G IC301 IC8201 TP103 IC101 TPVHS IC5302 PART SIDE 1AA4B10C3650A Fig. 3-15 3-16...

  • Page 59: Troubleshooting

    Part 4 Troubleshooting...

  • Page 60: No Power

    Part 4: Troubleshooting 1. TROUBLESHOOTING 1.1 No Power This projector provides a function which can be specified a defective area simply by indicating the LEDs on the control panel. Connect the AC cord and press the Power button once and then check the LED indication. When all the LED indicators are not lighting, the symptom indicates that the primary power supply circuit does not operate properly.
  • Page 61 Part 4: Troubleshooting • An abnormality occurs on power starter signals (FAN_SW, 5V_SW, ON_15V). FAN_SW signal (Power-on:H) is output from pin 19 of IC1802 and applied to the Power Board. It drives the power oscillation circuit and power supply for the cooling fans in Power Board.
  • Page 62 Part 4: Troubleshooting [Reset switch] The microprocessor inside the projector may occasionally malfunction and does not allow any controls. In this case, press the reset switch on the rear panel with a sharp tool to restart the projector. Fig. 4-2...

  • Page 63: No Picture

    Part 4: Troubleshooting 1.2 No Picture Check following steps. Check signal processing stage and LCD driving stage; No picture with all of Check RGB S&H signals at test points TPR1, TPG1, TPB1. input sources Check NRS signals at test points TP2531 and TP2561. Check power supply circuit 15VP and peripheral circuit.
  • Page 64 Part 4: Troubleshooting From previous page No picture with Check AV/PC source selecting stage; Check component signal (Y/Cr,Pr/Cb,Pb) on the AV and Main Component input source board. Component signals (480i/575i format) are sent to IC101 directly. Component signals (480p/575p format) are selected at RIN2/GIN2/BIN2 of IC5201 and other HDTV format signals are selected at RIN1/GIN1/BIN1 of IC5201, and then sent to IC8201.

  • Page 65: No Sound

    Part 4: Troubleshooting 1.3 No Sound Check following steps. Is the audio signal Check IC5001, audio-sw IC, and peripheral circuit. observed at pins 3 and Check IC5001, audio-sw IC, and peripheral circuit. AUD_PC/AV_SW (PC:H) signal is applied on pin 10 of IC5001 13 of IC5001? through Q5003, sent from pin 12 of IC3551.

  • Page 66: Control Port Functions

    Part 4: Troubleshooting 2. CONTROL PORT FUNCTIONS 2.1 System Control & I/O Port Table (IC301) Pin No. Name Function Name Function Polarity Port A7 LAMP_PWM PWM Output to Sub-CPU Port A6 MUPO_ON Port A5 M_SCL1 Port A4 M_SDA1 Port A3 M_SCL2 Port A2 M_SDA2...

  • Page 67: Iic Bus D/A Converter (Ic3551, M62393Fp)

    Part 4: Troubleshooting Pin No. Name Function Name Function Polarity Data Bus 5 Data Bus 4 Data Bus 3 Data Bus 2 Data Bus 1 Data Bus 0 Read Enable Not used Write Enable Not used BHEN BHEN High Byte Enable Not used ROMOE ROMOE...

  • Page 68: Iic Bus D/A Converter (Ic3561, M62392Fp)

    Part 4: Troubleshooting 2.3 IIC Bus D/A Converter (IC3561, M62392FP) Pin No. Name Function Reset input P_SCK1 IIC BUS SCL P_SDA1 IIC BUS SDA REF_R Black to black Adjustment (Service mode No.10) REF_G AV black level Adjustment (Service mode No.11) REF_B AV black level Adjustment (Service mode No.12) Not used...

  • Page 69: Sub Cpu (Ic1882, Pic12F675)

    Part 4: Troubleshooting 2.5 Sub CPU (IC1882, PIC12F675) Pin No. Name Function Power Supply +5V GP5/T1CKI TMR1_CLK Clock Input Power switch signal Low Wattage = L Lamp Status Signal GP2/T0CKI LAMP_PWM APL Level Input SCEL Lamp ON/OFF Control Lamp ON = L LAMP_ERR Lamp Error Output Lamp Error = H...

  • Page 70: Input Expander (Ic1811, Tc74Lcx541Ft)

    Part 4: Troubleshooting 2.8 Input Expander (IC1811, TC74LCX541FT) Pin No. Name Function IO_ENB 1 Enable = L (OE1 and OE2) KEY Scan Input KEY Scan Input KEY Scan Input OPTION1 Option Resistor 1 OPTION2 Option Resistor 2 OPTION3 Option Resistor 3 LAMP_ERR Lamp Error Input S_SW...

  • Page 71: Waveforms

    Part 4: Troubleshooting 3. WAVEFORMS VIDEO-IN <TP103, IC101-75> Analog H-SYNC <TPGHS> Analog V-SYNC <TPGVS> Digital H-SYNC <TPDHS> Digital V-SYNC <TPDVS> NRS <TP2531,TP2561> R-S&H OUT <TPR1> G-S&H OUT <TPG1> B-S&H OUT <TPB1> 4-12...

  • Page 72: Ic Block Diagrams

    Part 4: Troubleshooting 4. IC BLOCK DIAGRAMS AD9883 <Analog Flat Panel Interface, IC8201> OUTA CLAMP OUTB OUTA CLAMP OUTB OUTA CLAMP OUTB HSYNC DATACK HSYNC HSOUT VSYNC VSOUT VSYNC SOGOUT SYNC SOGIN PROCESSING SOGIN CLOCK GENERATION COAST BYPASS CLAMP CKINV CKEXT FILT AD9888...
  • Page 73 Part 4: Troubleshooting BA7078AF <Sync Detector, IC5301> BA9743AFV <DC-DC Converter, IC371> 4-14...
  • Page 74 Part 4: Troubleshooting LM4865 <Audio Amplifier , IC5003> PW168A <Scaler, Main CPU, IC301> 4-15...
  • Page 75 Part 4: Troubleshooting TA1370FG <Sync Separator, Frequency Counter, IC5302> VPC3230D <Video Decoder, IC101> 4-16...

  • Page 76: Part 5 Parts Catalog

    Part 5 Parts Catalog...
  • Page 78 Power Projector LV-S3J REF. NO. D78-5421 Multimedia Projector LV-S3U D78-5422 LV-S3E D78-5423 PARTS CATALOG CONTENTS Page 1: Mechanical Parts-1 Page 2: Mechanical Parts-2 Page 3: Optical Assemblies Page 4: Optical Parts Page 5: Electrical Parts Page 6: Attached Parts...
  • Page 79 Page 1 REF. NO. D78-5421 CANON LV-S3J D78-5422 LV-S3U D78-5423 LV-S3E LABEL2 53-1 LABEL1 53-2 S1x4 53-1 53-1 S4x6 S3x4 51x2 51x2 51x2 51x2 51x2 Mechanical Parts-1...

  • Page 80: Parts List

    DY5-0463-000 PLATE, SIDE R DY5-0464-000 PANEL, FRONT L DY5-0465-000 PANEL, FRONT R DY5-0466-000 PANEL, AV DY5-0467-000 PANEL, BUTTON DY5-0014-000 PLATE, CANON LOGO DY5-0468-000 CAP, LENS DY5-0469-000 COVER, POWER SIDE DY5-0470-000 DUCT, PBS DY5-0471-000 DUCT, LCD FAN DY5-0472-000 DUCT, LAMP DY5-0473-000...
  • Page 81 Page 2 REF. NO. D78-5421 CANON LV-S3J D78-5422 LV-S3U D78-5423 LV-S3E LABEL2 53-1 LABEL1 53-2 S1x4 53-1 53-1 S4x6 S3x4 51x2 51x2 51x2 51x2 51x2 Mechanical Parts-2...
  • Page 82 Page 2 PARTS LIST REF NO. D78-5421 D78-5422 D78-5423 SYMBOL PARTS NO. CLASS DESCRIPTION REMARKS LABEL2 DY5-0069-000 LABEL, CAUTION LENS LABEL1 DY5-0533-000 LABEL, CAUTION POWER SW LV-S3J ONLY DY4-5801-000 SCREW M3x6 CY2-8232-000 SCREW M3x8 DY5-0539-000 SCREW T2x4 DY4-5802-000 SCREW T3x10 DY5-0540-000 SCREW M4x4...
  • Page 83 Page 3 REF. NO. D78-5421 CANON LV-S3J D78-5422 LV-S3U D78-5423 LV-S3E S7x4 S2x2 S6x3 Optical Assemblies...
  • Page 84 Page 3 PARTS LIST REF NO. D78-5421 D78-5422 D78-5423 SYMBOL PARTS NO. CLASS DESCRIPTION REMARKS DY5-0491-000 HOUSING, LAMP DY5-0492-000 PRISM/LCD ASS'Y D78-5431-000 OPTICAL BOX ASS'Y YG7-2024-000 LENS ASS'Y CY2-8232-000 SCREW M3x8 DY5-0541-000 SCREW M2.5x6 XA1-7200-606 SCREW M2x6...
  • Page 85 Page 4 REF. NO. D78-5421 CANON LV-S3J D78-5422 LV-S3U D78-5423 LV-S3E 68 : Green 69 : Blue S11x3 S12x5 S13x8 S10x6 64: Red Optical Parts...
  • Page 86 Page 4 PARTS LIST REF NO. D78-5421 D78-5422 D78-5423 SYMBOL PARTS NO. CLASS DESCRIPTION REMARKS DY5-0493-000 LENS, CONDENSER R YN7-3001-000 LENS, INTEGRATOR IN YN7-3002-000 LENS, INTEGRATOR OUT YN7-3004-000 PRISM, PBS DY5-0497-000 GLASS, PL IN, G DY5-0498-000 GLASS, PL IN, B XA9-1519-000 SCREW T3x8 BLACK...
  • Page 87 Page 5 REF. NO. D78-5421 CANON LV-S3J D78-5422 LV-S3U D78-5423 LV-S3E S9x2 S8x3 POWER MAIN S1x4 S8x3 51x2 LAMP BALLAST S3x4 S8x2 F601 S8x4 SENSOR LINE FILTER SWITCH SP901 FN904 FN902 S8x2 FN906 S8x2 FN905 FN901 SW902 FN903 LP900 Electrical Parts...
  • Page 88 Page 5 PARTS LIST REF NO. D78-5421 D78-5422 D78-5423 SYMBOL PARTS NO. CLASS DESCRIPTION REMARKS DY5-0526-000 PCB ASS'Y, AV DY5-0510-000 LAMP BALLAST ASS'Y BALLAST DY5-0528-000 PCB ASS'Y, LINE FILTER FILTER DY5-0527-000 PCB ASS'Y, KEY DY5-0530-000 PCB ASS'Y, MAIN MAIN DY5-0509-000 PCB ASS'Y, POWER POWER DY5-0531-000...
  • Page 89 Page 6 REF. NO. D78-5421 CANON LV-S3J D78-5422 LV-S3U D78-5423 LV-S3E PRESENT PRESENT ATION TION See P1 Attached Parts...
  • Page 90 Page 6 REF NO. D78-5421 D78-5422 D78-5423 SYMBOL PARTS NO. CLASS DESCRIPTION REMARKS DY5-0501-000 REMO-CON, OPERATION DY5-0503-000 REMO-CON, PRESENTATION DY5-0502-000 COVER, BATTERY DY5-0504-000 RECEIVER, IR USB DY5-0506-000 POWER CORD, 100V LV-S3J ONLY DY5-0505-000 POWER CORD, 120V LV-S3U ONLY DY5-0507-000 POWER CORD, 240V LV-S3E ONLY CY2-8288-000 ADAPTER, POWER PLUG...
  • Page 91 Page 7 INDEX OF PARTS LIST REF NO. D78-5421 D78-5422 D78-5423 PAGE SYMBOL PAGE NEW SYMBOL PARTS NO. PARTS NO. CY2-8232-000 DY5-0476-000 CY2-8288-000 DY5-0477-000 CY2-8298-000 DY5-0478-000 CY2-8329-000 DY5-0479-000 F601 CY2-8376-000 DY5-0480-000 D78-5431-000 DY5-0481-000 DY4-5801-000 DY5-0482-000 DY4-5802-000 DY5-0483-000 DY4-5803-000 DY5-0484-000 DY4-6131-000 DY5-0485-000 53-1 DY4-6132-000...
  • Page 92 Page 8 INDEX OF PARTS LIST REF NO. D78-5421 D78-5422 D78-5423 PAGE SYMBOL PAGE NEW SYMBOL PARTS NO. PARTS NO. CABLE2 DY5-0521-000 CABLE3 DY5-0522-000 CABLE4 DY5-0523-000 CABLE5 DY5-0524-000 CABLE6 DY5-0525-000 DY5-0526-000 DY5-0527-000 FILTER DY5-0528-000 SWITCH DY5-0529-000 MAIN DY5-0530-000 DY5-0531-000 SENSOR DY5-0532-000 LABEL1 DY5-0533-000...

  • Page 93: Part 6: Electrical Diagrams

    Part 6 Electrical Diagrams...

  • Page 94: Parts Description And Reading In Schematic Diagram

    Part 6: Electrical Diagrams 1. PARTS DESCRIPTION AND READING IN SCHEMATIC DIAGRAM 1. The parts specification of resistors, capacitors and coils are expressed in designated code. Please check the parts description by the following code table. 2. Some of transistors and diodes are indicated in mark for the substitution of parts name.
  • Page 95 Part 6: Electrical Diagrams Resistor Reading Example 1/2 D J 10K B Material table Tolerance table Mark Material Mark Tolerance Characteristic ±0.05 Carbon ±0.1 Example W K 8.2 Metal film Z (Carbon fuse) ±0.25 Oxide metal film B (Non-burnable) ±0.5 Solid ±1 Metal glaze...

  • Page 96: Diode, Transistor And Ic Pins

    Part 6: Electrical Diagrams 2. DIODE, TRANSISTOR AND IC PINS Diodes Diode K: Cathode A: Anode Transistors/FETs Transistor/FET C: Collector D: Drain B: Base G: Gate Index E: Emitter S: Source C1 C2 C1 C2 (GND) RESET (IN) (OUT) Index Index Index Index...

  • Page 97: Chassis Block Diagrams

    Chassis Block Diagrams Chassis Overview SPEAKER B-LCD PANEL G-LCD PANEL R-LCD PANEL IC3501 NRS_SW IIC BUS CONTROL BRIDGE DIODE THERMAL D-SUB_15 AUDIO...

  • Page 98: Video Signal Processing Circuit And Lcd Panel Driving Circuit

    Chassis Block Diagrams Video signal processing circuit and LCD panel driving circuit K25B K25G K25R CBAL_SW SYSTEM_BUS K50A K50B 20,19,18 13,12,11 4,6 2 15,14 16 7 K10D K10E G_SYNC FILT_480p/575p S_SW COMPUTER IN / S_VIDEO VIDEO COMPONENT IN...

  • Page 99: System Controls

    Chassis Block Diagrams System Controls 1-2 3-4 17-18 15-14 IC3561 IC501, IC531, IC561 S&H IC3551 IC1802 IC1801 OUTPUT OUTPUT EXPANDER EXPANDER IC8802 TEMP. IC3571 SENSOR IC8801 IC1881 IC5302 TEMP. INVERTER YUV_SYNC SENSOR IC1811 IC1814 BUFFER BUFFER IC1882 SUB CPU From the power fail detection diodes.

  • Page 100: Power Supply Lines

    Power Supply Lines Power supply circuit, Protection circuit and Fan control circuit K25B K25G K25R Fan Error : L Lamp-On: H D5624 FAN3 D5619 FAN2 D5612 FAN1 IC1881 INVERTER Lamp-On: L SCEL 375V 15VB FUSE THERMAL SW FILTER BOARD...

  • Page 101: Schematic Diagrams

    Schematic Diagrams INTAKE FAN INTAKE FAN INTAKE FAN INTAKE FAN EXHAUST FAN EXHAUST FAN SPEAKER FN902 FN905 FN901 FN904 FN903 FN906 M10B28900 M10B28900 M10B28800 M10B22406 M10B26502 M10B23004 A10B30900 FILTER AC CORD INLET K601 J11B5760N F601 4A250V (LIVE) C603 TCSL K68C AC100-120V SW902 VA601...
  • Page 102 R5244 1/10GJ22 R5214 C5218 1/3GJ000 R8204 C5206 16EM C5204 1/16GJ IC5201 47WM 6.3UM 10KZ1 C5219 R5201 C5201 120CG UGQF AN5870SB 16KZ1FA GBLKSPL (FROM IC301 156P) L1001 SC1001 L1011 R1001 1/16GJ 16KZ 1/8GZ000 F34DE180P 1/3GJ75 Z30B0120G 2.2FA VCC2 RIN1 C8206 R8206 R8209 16KK 1/16GJ10C...
  • Page 103 S3.3V_PW IC9401 J10EG060G TURBO R1841 IC1841 Q1841 1/16GZ 2SK536P 24LC32AT-I/SN POWER_FAIL R1847 R1844 P_SDA1 1 A0 C1841 1/16GJ 1/16GJ 25KZ0.1 3.3KC 4.7KC 2 A1 TEST GQFZ P_SCLK1 P_SCLK1 3 A2 R1848 4 VSS R1842 TE301 (TO IC8801 TRMP) 1/16GJ 1/16GJ J30A00102 IC8801 R1846...
  • Page 104 L2501 1/8GZ000 POWER POWER 15.5V 15VL "CN201" "CN202" R2501 Q2501 D2511 P_FAIL 1/16GJ 2SA1203Y 1SS355 FN902 FN905 FN901 1.5KC R2502 P_FAIL C2513 R2503 1/16GJ L2511 15.5VP 25KZ 1/16GJ 4.7KC 1/8GZ000 C518 0.1GQFZ 4.7KC 25KZ R522 1/16GJ100C K66A K66B K66C B_V2 C2501 C2512 C519...

  • Page 105: Printed Wiring Board Diagrams

    Printed Wiring Board Diagrams CAUTION R/C (SIDE:A) R/C (SIDE:B) This projector is isolated from AC line by using the internal converter transformer. Please pay attention to the following notes in servicing 1. Do not touch the part on hot side (primary circuit) or both parts on hot and cold 1AA4B10C3650B sides (secondary circuit) at the same time.
  • Page 106 AV (SIDE:A) AV (SIDE:B) FILTER (SIDE:A) FILTER (SIDE:B) MAIN “K50A” MAIN “K50B” R2024 R2028 F. G. R2022 R2026 R2037 C2004 Q2003 R2013 R2029 R2012 R2027 R2023 K10D R2006 C2003 Q2001 Q2002 K10E R2008 D2002 SW10A SW10A R2031 D1051 R2034 R2036 C1051 C5218 L2008...

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