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Canon LV-7545U Service Manual

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SERVICE MANUAL

By Portable Document Format
LV-7545U/D78-5232
LV-7545E/D78-5233
DY8-1785-231 500
0
PREFACE
1
General
2
Repair
3
Adjustment
4
Troubleshooting
5
Parts Catalog
6
Electrical Diagrams
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Summary of Contents for Canon LV-7545U

  • Page 1: Service Manual

    English Edition PREFACE General SERVICE MANUAL Repair By Portable Document Format Adjustment LV-7545U/D78-5232 Troubleshooting LV-7545E/D78-5233 Parts Catalog Electrical Diagrams To Contents DY8-1785-231 500...
  • Page 2 CANON Power Projector LV-7545E D78-5231 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 Internally, they are identical. The accessories bundled with the product may differ from country to country. Main Marketing Area Japan North America Europe POWER PROJECTOR MULTIMEDIA PROJECTOR MULTIMEDIA PROJECTOR Model Name LV-7545J LV-7545U LV-7545E...
  • 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 objectives ................1-1 1.2 Major Features ..................1-2 2. LV-7545 SPECIFICATIONS ................1-3 2.1 Type ......................1-3 2.2 LCD panel ....................1-3 2.3 Optical box ....................1-3 2.4 Mechanism ....................1-3 2.5 Video/audio ....................
  • Page 7 2.2 Thermal Switch ..................2-2 2.3 Interlock Switch ..................2-3 2.4 Warning Temperature and Power Failure Protection ......2-3 2.5 Air Filter Care and Cleaning ..............2-4 3. SERVICE (MECHANICAL DISASSEMBLES) ..........2-5 3.1 Cabinet Top Removal ................2-5 3.2 Front Cabinet Removal ................2-6 3.3 Main Board Removal ................
  • Page 8 Part 6: Electrical Diagrams 1. PARTS DESCRIPTION AND READING IN SCHEMATIC DIAGRAM....6-1 2. DIODE, TRANSISTOR AND IC PINS............... 6-3 Circuit Block Diagram (LV-7545U/E)..............A3 Power Supply Lines (LV-7545U/E) ..............A4 Schematic Diagrams ..................A5 Printed Wiring Board Diagrams................. A13...

  • Page 10: Part 1: General Information

    Part 1 General Information...

  • Page 11: Features

    Part 1: General Information 1. FEATURES 1.1 Development objectives This projector has been newly developed as a successor to the Canon Multimedia Projector "LV-7535" as a "flagship model" to achieve the highest brightness in its class, high quality and functions.

  • Page 12: Major Features

    New power-driven Turbo Bright System. Highest brightness of 3700 ANSI lumen in the class The projector achieves the highest brightness in its class with the Canon's original Turbo Bright System and new optical design. A remote control can be used to switch between Bright ON and OFF.

  • Page 13: Lv-7545 Specifications

    Part 1: General Information 2. LV-7545 SPECIFICATIONS 2.1 Type Portable XGA LCD Projector 2.2 LCD panel 1. Type Polysilicon active matrix TFT with microlens 1.3 model (4:3 aspect ratio) × 3 2. Size/number 1024 × 768 pixels (XGA) 3. Number of pixels 4.

  • Page 14: Connectors

    2. DVI computer connection cable LV-CA29 This cable is used to input digital RGB video signals from a PC. 3. Canon ceiling mount fitting LV-CL07 Hanger for ceiling mount * Ask a specialist to install the projector in the best location.

  • Page 15: Nomenclature

    Part 1: General Information 3. NOMENCLATURE 3.1 Name of each part of projector: See the attached sheet (Owner's Manual, page 7). 3.2 Top controls and indicators: See the attached sheet (Owner's Manual, page 16). 3.3 Rear panel terminals: See the attached sheet (Owner's Manual, page 11).

  • Page 16: Commentary

    This projector has larger glacial blue areas than the other new models and the operation keys and the Canon logo colored a glossy metallic color to give an impression of a sophisticated office equipment.

  • Page 17: Turbo Bright System

    Part 1: General Information 4.3 Turbo Bright System This product has an additional function that electrically controls the Canon's original Turbo Bright System, which enables switching brightness and color with a remote control. The highest brightness can be switched with the BRIGHT button, as follows: BRIGHT ON: 3700 ANSI lumen ↔...

  • Page 18: Image Control

    Part 1: General Information 4.5 Image Control Digital keystone function Smoothly corrects for "keystone" effect on the projection screen, giving a square image with up to 40 degrees tilt. Digital zoom function Digital zoom enlarges (or shrinks) any selected part of the presentation image (×1/4 to ×49).

  • Page 19: Replacement Lenses

    The temperature sensor is located near the air inlet to improve response and optimize speed. Easy lamp replacement mechanism (Canon replacement lamp LV-LP13) The user can replace the lamp easily. There is a lamp replacement lid on the rear, and the lamp can be removed just by removing two screws.
  • Page 20 Part 1: General Information Guideline for use Use the appropriate lens for a combination of projector installation position and screen size. • See the figure below for the standard lens, LV-IL02 (wide angle zoom lens) and LV- IL03 (long focus zoom lens). Projection distance and lens 300 type 200 type...

  • Page 21: Connection Diagram

    Part 1: General Information 5. CONNECTION DIAGRAM Connection to the computer: See the attached sheet (Owner's Manual, page 12). Connecting to the video equipment: See the attached sheet (Owner's Manual, page 13). 1-11...

  • Page 22: Setting-Up The Projector

    Part 1: General Information 6. SETTING-UP THE PROJECTOR Positioning the projector: See the attached sheet (Owner's Manual, page 9). Installation precautions: See the attached sheet (Owner's Manual, page 8). 1-12...

  • Page 23: Supported Computer System Mode

    Part 1: General Information 7. SUPPORTED COMPUTER SYSTEM MODE See the attached sheet (Owner's Manual, page 26). 1-13...

  • Page 25: Part 2: Repair Information

    Part 2 Repair Information...

  • Page 26: 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 27: Circuit Protections

    Part 2: Repair Information 2. CIRCUIT PROTECTIONS This projector is equipped with 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 unit Fuse...

  • Page 28: Interlock Switch

    Part 2: Repair Information 2.3 Interlock Switch The interlock switch (SW902) cuts AC Interlock switch power when the lamp cover is removed. If Thermal switch the lamp cover is opened to replace the lamp, the projector does not start. Reinstall the lamp cover.

  • Page 29: 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 filter become clogged with dust particles, it will reduce the cooling fan's effectiveness and may result in internal heat build up and reduce the life of the Air filter projector.

  • Page 30: Service (Mechanical Disassembles)

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

  • Page 31: Front Cabinet Removal

    Part 2: Repair Information 3.2 Front Cabinet Removal 1. Turn the front lens cover counterclockwise as shown in Fig. 2-6, and pull it forwards. 2. Take the front cabinet top, lens cover holder and lens cover off upwards. 3. Remove 2 screws D and remove the front cabinet. 4.

  • Page 32: Main Board Removal

    Part 2: Repair Information 3.3 Main Board Removal 1. Remove 7 screws and remove the main board. Main Board Fig. 2-7 3.4 AV and Rear Panel Removal 1. Remove 2 screw A and remove the rear panel ass'y upwards. 2. Remove 4 screws B and then remove the fan (FN905). 3.

  • Page 33: Lamp Ballast Unit Removal

    Part 2: Repair Information 3.5 Lamp Ballast Unit Removal 1. Remove 4 screw A and then take the ballast cover off upward. Ballast cover FN903 2. Remove 2 screws B and remove the fan (FN903). 3. Take the sub power supply unit and drive unit off upward.

  • Page 34: Prism Base Removal

    Part 2: Repair Information 3.7 Prism Base Removal 1. Remove 2 screws A and take the prism base off upward. 2. Remove 2 screw B and remove the lens shift motor sensor switch holder. Prism base ass'y Motor sensor holder Fig.

  • Page 35: Filter Unit, Thermal Switch And Interlock Switch Removal

    Part 2: Repair Information 3.9 Filter Unit, Thermal Switch and Interlock Switch Removal 1. Remove 1 screw A and remove the interlock switch (SW902). 2. Remove 2 screws B and remove the filter unit holder. Remove 2 screws C and remove the filter unit from the holder.

  • Page 36: Optical Parts Disassembles And Reassembles

    Part 2: Repair Information 4. OPTICAL PARTS DISASSEMBLES AND REASSEMBLES Remove the cabinet top and main unit according to "SERVICE (Mechanical Disassembles)". A 2.0mm or 2.5mm hex driver is required for disassembly. 4.1 Projection Lens Removal 1. Remove the cabinet top and cabinet front according to the SERVICE (MECHANICAL DISASSEMBLES).

  • Page 37: Relay Lens Ass'y Disassembly

    Part 2: Repair Information 4.3 Relay Lens Ass'y Disassembly 1. Remove 2 screws A and take the relay lens ass'y off upward. 2. Remove 2 screws B and take the relay lens off from the holder. Note: The lens can be Holder installed in any direction.

  • Page 38: Bright Motor Ass'y Disassembly

    Part 2: Repair Information 4.5 Bright Motor Ass'y Disassembly 1. Remove the optical unit according to step 3.6 of "Service: Mechanical Disassemblies". 2. Remove 2 screws A and remove the bright motor ass'y from the bottom of the optical unit. 3.

  • Page 39: Condenser Lens Removal

    Part 2: Repair Information 4.7 Condenser Lens Removal 1. Remove the top optical unit, remove 2 screws A and take the condenser lens ass'y off upward. 2. Release 4 hooks B and remove the lens from the holder. * Mount the lens so that its flat surface faces the holder.

  • Page 40: Locations And Directions

    Part 2: Repair Information 4.9 Locations and Directions When mounting or assembling the optical parts, the parts must be mounted in the specified location and direction. See the figure below. Key No. Part name Key No. Part name Condenser lens (R) Mirror (W) Condenser lens Condenser lens (IN)

  • Page 41: Lcd Panel/Prism Ass'y Replacement

    Part 2: Repair Information 5. LCD PANEL/PRISM ASS'Y REPLACEMENT Important note on LCD panel/prism ass'y replacement LCD panels used for this model cannot be replaced separately. These LCD panels/prism ass'ies are adjusted with precision at the factory. When replacing the LCD panel, whole of the LCD panels and prism ass'y should be replaced at once.

  • Page 42: Note On Lcd Panel/Prism Ass'y Mounting

    Part 2: Repair Information 5.2 Note on LCD Panel/Prism Ass'y Mounting After replacing or installing the LCD Panel/Prism ass'y, please make sure to Top View obtain the best focus in both TELE and WIDE zoom. If the focus adjustment is required, please adjust the positioning of LCD Panel/Prism Ass'y by following the procedure below.

  • Page 43: 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 44: Lamp Replacement

    Part 2: Repair Information 7. LAMP REPLACEMENT • For continued safety, replace with a lamp assembly of the same type. Service Parts No.: DY4-6319-000 (LV-LP13) • Allow the projector to cool for at least 45 minutes before you open the WARNING lamp cover.
  • Page 45 Part 2: Repair Information How to check the lamp replacement counter The LAMP REPLACEMENT indicator will illuminate when the lamp counter reaches 1000 hours. This is to indicate that lamp replacement is required. You can check the accumulated illumination time of the lamp as follows: 1.

  • Page 46: Part 3: Adjustment

    Part 3 Adjustment...

  • Page 47: Precautions For Adjustment

    Part 3: Adjustment 1. PRECAUTIONS FOR ADJUSTMENT Memory IC handling Memory IC (IC808) on the main board stores the data for the service adjustments, and should not be replaced except for the case of defective device. The data of lamp replacement monitor timer is stored in the IC808. Please note that the lamp replacement monitor timer is reset when the memory IC (IC808) is replaced.

  • Page 48: Service Adjustment Menu Operation

    Part 3: Adjustment 1.2 Service Adjustment Menu Operation (It is used to perform service adjustment.) To enter the service mode To enter to the "Service Mode", press and hold the MENU and BRIGHT buttons on the projector at the same time for more than 3 seconds. To adjust service data Select an adjustment group (group no.) by pressing the MENU button.

  • Page 49: Ic Adjustment Data Table

    Part 3: Adjustment 1.3 IC Adjustment Data Table These initial values are the reference data written from the CPU ROM to the memory IC when the new memory IC replaced. 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 50 Part 3: Adjustment Adjustment Item Initial Value Range Input source/Description R_DRIVE 31/31/31 0 ~ 63 NT,NT443,PAL,PALM,PALN,480i,575i/ 480p,575p/ 1080i,1035i,720p A/D input adjustment [R] G_DRIVE 0 ~ 63 B_DRIVE 31/31/31 0 ~ 63 NT,NT443,PAL,PALM,PALN,480i,575i/ 480p,575p/ 1080i,1035i,720p A/D input adjustment [B] HSEP_SEL 0 ~ 1 CR_OFFSET1 0 ~ 15 CB_OFFSET1...
  • Page 51 Part 3: Adjustment Adjustment Item Initial Value Range Input source/Description Real/Cinema GAMMA 10 539/512 385 ~ 639 Real/Cinema GAMMA 11 543/512 385 ~ 639 Real/Cinema GAMMA 12 541/512 385 ~ 639 Real/Cinema GAMMA 13 543/512 385 ~ 639 Real/Cinema GAMMA 14 512/512 385 ~ 639 Real/Cinema GAMMA 15...
  • Page 52 Part 3: Adjustment Adjustment Item Initial Value Range Input source/Description AV STD G GAMMA SHIFT 385 ~ 639 AV Standard Bright On differential (± 127) center value 512 AV STD R GAMMA SHIFT 385 ~ 639 AV Standard Bright On differential (± 127) center value 512 AV STD B GAMMA SHIFT 385 ~ 639 AV Standard Bright On differential (±...
  • Page 53 Part 3: Adjustment Adjustment Item Initial Value Range Input source/Description Group: 10 Option Lamp Time Monitor Read only RS232C Baudrate 0 ~ 1 0: 19200bps 1: 9600bps Shootout Mode 0 ~ 1 1: Shoot Out Mode Enable 0: Disable Cooling Time 0 ~ 15 Set cooling period, 1: 30 sec.
  • Page 54 Part 3: Adjustment Adjustment Item Initial Value Range Input source/Description ICS_R1_PFD 0 ~ 7 NTSC & 480i / PAL & SECAM & 525i / 1035i & 1080i60 / 1080i50 / 720P / 480P / 575P ICS_R3_FBD 2432 0 ~ 8191 R3_R2 NTSC &...
  • Page 55 Part 3: Adjustment Adjustment Item Initial Value Range Input source/Description Group: 516 HDTV 575p Gakaku TOTAL DOTS 1408 0 ~ 2048 DISP DOTS 1024 0 ~ 2048 575p H BACK PORCTH 0 ~ 2048 V BACK PORCTH 0 ~ 2048 DISP LINE 0 ~ 2048 CLAMP...

  • Page 56: Electrical Adjustments

    Part 3: Adjustment 2. ELECTRICAL 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 57: Adjustment

    Part 3: Adjustment 2.2 +16V Adjustment 1. Input 3 Receive the 16-step gray scale video signal in VIDEO mode. 2. Connect a digital voltmeter to pin 3 (+) of CN6A and ground (–). 3. Turn VR681 on the power supply unit to adjust it to 15.8 ± 0.1 VDC. 2.3 Video Center Adjustment 1.

  • Page 58: Psig Adjustment

    Part 3: Adjustment 2.5 PSIG Adjustment 1. Input 1 Receive the 16-step gray scale computer signal in COMPUTER mode. 2. Enter the service mode. 3. Connect an oscilloscope to test point "TP2551" (+) and ground (–). 4. Select item no. "6" of group no. "5" and change data value to adjust it so that waveform "a"...

  • Page 59: Pc Gain Adjustment

    Part 3: Adjustment 2.7 PC Gain Adjustment 1. Input 1 Receive the 16-step gray scale computer signal in COMPUTER mode. 2. Enter the service mode. 3. Connect an oscilloscope to test point "TP531" (+) and ground (–). 4. Select item no. "4" of group no. "4" and change data value to "600". Then, reduce data value and adjust it so that waveform "a"...

  • Page 60: Hdtv A/D Input Adjustment

    Part 3: Adjustment [1080i pedestal adjustment] 1. Input 3 Receive the 16-step gray scale component [1080i] signal in COMPONENT mode. 2. Enter the service mode. 3. Connect an oscilloscope to test point "TP21G" (+) and ground (–). 4. Select item no. "1" of group no. "3" and change data value to adjust the pedestal level and black level to be same level.

  • Page 61: Hdtv Gain Adjustment

    Part 3: Adjustment [1080i A/D input adjustment] 1. Input 3 Receive the 16-step gray scale component [1080i] signal in COMPONENT mode. 2. Enter the service mode. 3. Connect an oscilloscope to test point "TP21G" (+) and ground (–). 4. Select item no. "0" of group no. "3" and change data value to adjust it so that waveform amplitude "a"...

  • Page 62: Video Pedestal Adjustment

    Part 3: Adjustment 2.12 VIDEO Pedestal Adjustment 1. Input 3 Receive the 16-step gray scale video signal in VIDEO mode. 2. Enter the service mode. 3. Connect an oscilloscope to test point "TP4151G" (+) and ground (–). 4. Select item no. "1" of group no. "3" and change data value to adjust the pedestal level and black level to be same level.

  • Page 63: A/D Offset Adjustment

    Part 3: Adjustment 2.14 A/D Offset Adjustment 1. Input 3 Receive the 16-step gray scale video signal in VIDEO mode. 2. Enter the service mode. 3. Connect an oscilloscope to test point "TP531" (+) and ground (–). 4. Select item no. "11" of group no. "6" and change data value to adjust the pedestal level and black level to be same level.

  • Page 64: Video Gamma Shift Adjustment

    Part 3: Adjustment 2.16 Video Gamma Shift Adjustment 1. Input 3 Receive the 16-step gray scale video signal in VIDEO mode. 2. Enter the service mode 3. Select item no. "6" of group no. "4" and change data value to adjust it so that the correct gray scale screen appears on the screen.

  • Page 65: Optical Adjustments

    Part 3: Adjustment 3. OPTICAL ADJUSTMENTS Remove the cabinet top and main board according to "Mechanical Disassembles" before starting the following optical adjustments. Adjustment requires a 2.0mm hex wrench and a slot screwdriver. Do not disconnect the connectors K8L, K8X, K8D, K8G and K8E on the CAUTION main board, otherwise the projector cannot be turned on.

  • Page 66: Condenser Lens Adjustment

    Part 3: Adjustment 3.2 Condenser Lens Adjustment 1. Turn on lamp with the FPC cable of the LCD panel removed. 2. Adjust the adjustment base of the condenser lens ass'y to make color uniformity in white. White 1) If the color shade appears on the left or right of the screen, loosen 2 screws A with the hex driver and adjust slot B to make color uniformity in white by turning a slot...

  • Page 67: Relay Lens (Out) Adjustment

    Part 3: Adjustment 3.3 Relay Lens (OUT) Adjustment 1. Turn on lamp with the FPC cable of the LCD panel removed. 2. Adjust the adjustment base of relay lens ass'y (OUT) to make color uniformity in White white. 1) If the cyan shade appears on the left or Cyan right of the screen, loosen a screw A with the hex driver and turn slot B with a slot...

  • Page 68: Test Points And Locations

    Part 3: Adjustment 4. TEST POINTS AND LOCATIONS Main board TP801 TP351 TP301 TP302 TPENB TPDHS TPRST TPVRST TPDVS IC9401 K25R TP2552 TP2551 TP21B TP21G TP21R K25G TPVS TPHS TP531 TP1531 TP20R TP814 TP815 TP20G TP20B K25B IC6301 TP501 TP1501 IC4201 TP4101CR TP4101CB...

  • Page 69: Troubleshooting

    Part 4 Troubleshooting...

  • Page 70: No Power

    Part 4: Troubleshooting 1. TROUBLESHOOTING 1.1 No Power The following items are suspected as possible causes of "no power". Check the items by referring to the block diagrams of the power supply circuit and protection circuit on the next page. 1) The power supply circuit stopped operation because an abnormality was detected.
  • Page 71 Part 4: Troubleshooting 2) Power/lamp drive signal error Power start signal (FAN_DRIVE_SW) error The FAN_SW signal is output from pin 137 of IC801, passes through Q4807, is sent to the power switching circuit. This signal drives the power oscillation circuit of the power supply unit and the cooling fan power circuit of the power supply circuit.
  • Page 72 Part 4: Troubleshooting F601 IC1691 SW902 IC1872 SW905 IC1871 LAMP Ass'y LAMP BALLAST UNIT POWER BOARD SW902 SW905 F601 IC1691 Fuse AC IN Interlock sw. Thermal sw. TEMP. SENS. TSW601 IC601 K48E P.F.CONTROL TEMP. SENSOR BOARD Power Oscillator Circuit CN66A CN6A IC3381 IC1871...

  • Page 73: No Picture

    Part 4: Troubleshooting 1.2 No picture The following items are suspected as possible causes of "no picture". Check the items by referring to the block diagrams of the signal processing system on the next page. 1) No picture at video input Video input Check that the video signal is observed at K10R on the AV unit and pins 3 and 4 of K8A on the main board.
  • Page 74 Part 4: Troubleshooting 2) No picture at computer input Check that the RGB signals are observed at pins 19-20, 23-24 and 27-28 of K10Q on the AV unit and K8B on the main board. Check that the synchronizing signals (CG_HSYNC, CG_VSYNC) are observed at pins 11-12 and 13-14 of K10Q on the AV unit and K8B on the main board.
  • Page 75 Part 4: Troubleshooting Fig. 4-2 Video signal processing diagram...

  • Page 76: No Sound

    Part 4: Troubleshooting 1.3 No sound 1) No audio signal output to the AV input circuit Check the audio signal at pins 1 and 13 pins (CG1), 5 and 14 pins (CG2), 2 and 12 pins (VIDEO) of IC5011 of the AV unit. Check IC5011 and its peripheral circuits.

  • Page 77: Lens Motor Error

    Part 4: Troubleshooting 1.4 Lens Motor Error 1) No drive signal to the motor Check that the drive signal is observed at pins 1 and 2 of K16M (for focus motor) of the power supply unit, pins 3 and 4 of K16M (for the zoom motor) and 1 and 2 pins of K16L (for the lens shift motor).

  • Page 78: Port Functions

    Part 4: Troubleshooting 2. PORT FUNCTIONS 2.1 System control & I/O port table (IC801) Pin No. Name Signal name Function Operation Polarity PA23/WRHH USB RESET USB Reset Signal Active L PE14/TIOC4C/DACK0/AH IC RESET Power on/off control except FAN and LAMP Active L PA22/WRHL PA21/CASHH...
  • Page 79 Part 4: Troubleshooting Pin No. Name Signal name Function Operation Polarity PD17/D17/IRQ1 PW_IN0 PW365 Data input (reserve) PD16/D16/IRQ0 reserve PD15/D15 DATA15 Data Bus 15 PD14/D14 DATA14 Data Bus 14 PD13/D13 DATA13 Data Bus 13 PD12/D12 DATA12 Data Bus 12 PD11/D11 DATA11 Data Bus 11 PD10/D10...

  • Page 80: Parallel I/O Expander (Ic1801, M66500Fp)

    Part 4: Troubleshooting 2.2 Parallel I/O expander (IC1801, M66500FP) Pin No. Name Signal name Function Operation Polarity CG_FILTER D_TURBO_SEL DIGITAL TURBO Selection 5 V ±10 % A SW1 Audio SW 1 A SW2 Audio SW 2 SEL_BAISOKU Double Scan Selection IP_CSA CPU Strobe signal for IP Conversion IP+RESETSW...

  • Page 81: Ic Bus I/O Expander (Ic1641, M62320Fp) Port Function

    Part 4: Troubleshooting 2.3 IC bus I/O expander (IC1641, M62320FP) port function Pin No. Name Signal name Action Polarity Serial Data output port (Not connected) IIC BUS SCL IIC BUS SDA FOUCS+ FOUCS + Active H FOUCS- FOUCS - Active H ZOOM+ ZOOM + Active H...

  • Page 82: Ic Bus Da Converter (Ic3551, M62399Fp) Port Function

    Part 4: Troubleshooting 2.6 IC bus DA converter (IC3551, M62399FP) port function Pin No. Name Signal name Polarity Serial Data output port (Not connected) IIC BUS SCL IIC BUS SDA Not used V_COMR V_COMG V_COMB VrefL DAC Lower Reference Voltage input VrefU 1 DAC Upper Reference Voltage input (CH5~CH8) VrefU2...

  • Page 83: Waveforms

    Part 4: Troubleshooting 3. WAVEFORMS VIDEO-IN <TP4111Y> Y-IN <IC3101-5> C-IN <IC3101-7> H-SYNC-OUT <IC3101-7> V-SYNC-OUT <IC3101-4> Sandcastle-OUT <IC3101-10> Y-IN <TP4101Y> CB-IN <TP4101CB> CR-IN <TP4101CR> R <TP4151R/IC201-12> G <TP4151G/IC201-10> B <TP4151B/IC201-8> CB-IN <TP2301R> Y-IN <TP2301G> CR-IN <TP2301B> 4-14...
  • Page 84 Part 4: Troubleshooting R <TP21R> G <TP21G> B <TP21B> R-S&H OUT <TP561/TP1561> G-S&H OUT <TP531/TP1531> B-S&H OUT <TP501/TP1501> 4-15...

  • Page 85: Ic Block Diagrams

    Part 4: Troubleshooting 4. IC BLOCK DIAGRAMS AD8183ARU/AD8185ARU <Selector, IC101, IC201, IC5203> BA7078AF <Sync Detector, IC7141> 4-16...
  • Page 86 Part 4: Troubleshooting BH3540 <Volume Control, IC1652> CXA2101AQ <RGB Matrix, IC4101> 4-17...
  • Page 87 Part 4: Troubleshooting FA5332M <P. F. Controller, IC601> FA7612CA <PWC Controller, IC6602, IC6603, IC6616> 4-18...
  • Page 88 Part 4: Troubleshooting ICS1523M <Clock Driver, IC4231> L3E06070 <D/A-Sample & Hold, > IC501, IC531, IC561, IC1501, IC1531, IC1561 4-19...
  • Page 89 Part 4: Troubleshooting L3E07050 <Color, Gamma Correction & Timing Controller , IC401> LB1641 <Motor Drive, IC1602, IC1611> 4-20...
  • Page 90 Part 4: Troubleshooting LB1645 <Motor Drive, IC1601> LC863316 <SUB CPU, IC1851> 4-21...
  • Page 91 Part 4: Troubleshooting ML60851 <USB I/F, IC9801> M62393 <D/A, IC212, IC2381> 4-22...
  • Page 92 Part 4: Troubleshooting M62399 <D/A, IC3501, IC3551> PW365 <System Control & Scan Converter, IC301> 4-23...
  • Page 93 Part 4: Troubleshooting SII161ACT <DVI I/F, IC8001> STR-Z2156 <Power Switching, IC651> 4-24...
  • Page 94 Part 4: Troubleshooting TA1287 <RGB/YUV Converter, IC4551> TB1274AF <Video Decoder, IC1101> 4-25...
  • Page 95 Part 4: Troubleshooting TDA7056 <Audio Output, IC1631, IC1632> 4-26...

  • Page 96: Part 5 Parts Catalog

    Part 5 Parts Catalog...
  • Page 98 Multimedia Projector LV-7545U REF.NO.D78-5232 LV-7545E D78-5233 Power Projector LV-7545J D78-5231 PARTS CATALOG...
  • Page 99 Page 1 CANON LV-7545J REF. No. D78-5231 LV-7545U D78-5232 D78-5233 LV-7545E...

  • Page 100: Parts List

    1 HANDLE, ASS'Y DY4-6241-000 1 COVER, AV DY4-6242-000 1 COVER, DUCT FAN DY4-6243-000 1 SPACER, LEG DY4-5970-000 1 PLATE, CANON LOGO DY4-6247-000 1 COVER, PANEL, A DY4-6248-000 1 COVER, PANEL, B DY4-6249-000 1 SHAFT, FAN PANEL DY4-6250-000 1 COVER, DUCT POWER BOTTOM...
  • Page 101 Page 2 CANON LV-7545J REF. No. D78-5231 LV-7545U D78-5232 D78-5233 LV-7545E...
  • Page 102 Page 2 PARTS LIST REF NO.D78-5231 D78-5232 D78-5233 NEW SYMBOL PARTS NO. CLASS QTY DESCRIPTION REMARKS DY4-6269-000 PRISM ASS'Y CY2-8355-000 LENS, CONDENSOR DY4-6271-000 LENS, INTEGRATOR IN DY4-6272-000 LENS, INTEGRATOR OUT DY4-6273-000 LENS, CONDENSOR IN DY4-6275-000 LENS, CONDENSOR, R DY4-6276-000 LENS, RELAY IN DY4-6278-000 LENS, CONDENSOR, G DY4-6279-000...
  • Page 103 Page 3 REF. No. D78-5231 CANON LV-7545J D78-5232 LV-7545U D78-5233 LV-7545E 72-a: Red 72-b: Blue 72-c: Green 69: Red 67: Green 68: Blue...
  • Page 104 Page 3 PARTS LIST REF NO.D78-5231 D78-5232 D78-5233 NEW SYMBOL PARTS NO. CLASS QTY DESCRIPTION REMARKS DY4-6240-000 HOLDER, BRIGHTER DY4-5853-000 SPACER, TURBO HOLDER CY2-8336-000 SCREW CY2-8335-000 SCREW CY2-8392-000 SCREW DY4-6274-000 LENS, CONDENSOR OUT DY4-6277-000 LENS, RELAY OUT DY4-6283-000 FILTER, OPTICAL, BRGHITER DY4-6284-000 GLASS, PL IN, G DY4-6285-000...
  • Page 105 Page 4 CANON LV-7545J REF. No. D78-5231 LV-7545U D78-5232 D78-5233 LV-7545E 23-a 23-b 51-b 51-a...
  • Page 106 Page 4 PARTS LIST REF NO.D78-5231 D78-5232 D78-5233 NEW SYMBOL PARTS NO. CLASS QTY DESCRIPTION REMARKS DY4-6225-000 MOTOR ASS'Y BRIGHTER DY4-6244-000 HOLDER, LENS 23-a DY4-6245-000 SENSOR ASS'Y, LENS 23-b DY4-6246-000 MOTOR ASS'Y, LENS DY4-6265-000 SCREW DY4-6266-000 LENS, ASS'Y 51-a DY4-6267-000 MOTOR ASS'Y 51-b DY4-6268-000...
  • Page 107 Page 5 CANON LV-7545J REF. No. D78-5231 LV-7545U D78-5232 D78-5233 LV-7545E 1 2 3 4 5 6...
  • Page 108 Page 5 PARTS LIST REF NO.D78-5231 D78-5232 D78-5233 NEW SYMBOL PARTS NO. CLASS QTY DESCRIPTION REMARKS U- 1 DY4-6195-000 REMOTE CONTROLLER LV-7545 U- 2 DY4-5859-000 COVER, REMO-CON BATTERY DY4-5876-000 POWER CORD, AC120V DY4-5877-000 POWER CORD, AC240V DY4-5878-000 POWER CORD, AC100V CY2-8288-000 ADAPTER, POWER PLUG CY2-8298-000...
  • Page 109 Page 6 REF . No. D78-5231 CANON LV-7545J D78-5232 LV-7545U D78-5233 LV-7545E A800 FN905 SP901/SP902 FN903 A1001 A6901 A2801 FN904 FN906 A603 A1601 A901 FN902 A602 F601 LP900 A601 FN901 SW902 A6871 LF901 SW905 A6601...
  • Page 110 Page 6 PARTS LIST REF NO.D78-5231 D78-5232 D78-5233 SYMBOL PARTS NO. CLASS QTY DESCRIPTION REMARKS FN901/FN902 DY4-6297-000 FAN, FN901/FN902 FN903/FN904 DY4-6298-000 FAN, FN903/FN904 FN905 DY4-6299-000 FAN, FN905 FN906 DY4-6300-000 FAN, FN906 LF901 DY4-6301-000 FILTER, NOISE LP900 DY4-6302-000 LAMP ASS'Y, LP900 L901/L902 DY4-6303-000 FERRITE CORE...
  • Page 111 Page 7 PARTS LIST REF NO.D78-5231 D78-5232 D78-5233 PAGE SYMBOL PAGE SYMBOL PARTS NO. PARTS NO. DY4-6221-000 DY4-6279-000 DY4-6226-000 DY4-6280-000 DY4-6227-000 DY4-6281-000 DY4-6228-000 DY4-6282-000 DY4-6229-000 DY4-6287-000 DY4-6230-000 DY4-6288-000 DY4-6231-000 DY4-6240-000 DY4-6232-000 DY4-5853-000 DY4-6233-000 CY2-8336-000 DY4-6234-000 CY2-8335-000 DY4-6235-000 CY2-8392-000 DY4-6236-000 DY4-6274-000 DY4-6237-000 DY4-6277-000 DY4-6238-000...
  • Page 112 PARTS LIST Page 8 REF NO.D78-5231 D78-5232 D78-5233 PAGE PAGE SYMBOL PARTS NO. NEW SYMBOL PARTS NO. FN901/FN902 DY4-6297-000 FN903/FN904 DY4-6298-000 FN905 DY4-6299-000 FN906 DY4-6300-000 LF901 DY4-6301-000 LP900 DY4-6302-000 L901/L902 DY4-6303-000 * SP901/SP902 DY4-6304-000 SW902 DY4-6305-000 SW905 DY4-6306-000 A1001 DY4-6307-000 A1691 DY4-6308-000 A2801...

  • Page 113: Part 6: Electrical Diagrams

    Part 6 Electrical Diagrams...

  • Page 114: 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 115 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 116: 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 117 Circuit Block Diagram DIGITAL IC8001 DVI I/F IC351 IC341 IC211 IC3214 IC212 IC304 TP501 FLASH ROM SRAM CLAMP TP1501 CONTROL IC501 B-LCD MEMORY CLAMP A0-A15 D0-D15 S&H_B1 PANEL IC201 RGB-SW CG1/CG2 ANALOG TP20R IC301 IC401 IC1501 TP21R IC221 IC9401 S&H_B2 SCAN DIGITAL GB00-7...
  • Page 118 Power Supply Lines FILTER POWER BOARD BOARD SW905 9,10 From Power Board CN16C LAMP BALLAST K6AA K6AB DB601 L601 THERMAL SW F601 T601 D604 K66G K66J K66K K66L K66M BOARD 15.7V SUB POWER Q6609 Q601 C616 BOARD DS602 D6610 D6615 D6612 D6613 D6614...

  • Page 119: Main Board

    Schematic Diagrams K911P K911S D6728 J11MC J11MB SFPL-52V K66G DRIVE BOARD 020N POWER BOARD K16N 020N L6611 L6612 R6642 R6721 J10EP SOUND R-OUT J10EP L2E6 R6646 L2E6 1/16GJ 1/3GJ 060G 040G SP901 470KN 1/16GJ 470KN 6.8KC D6601TM A10B 180KC C1631 R6654 R6653 Q6603...
  • Page 120 DIGITAL-INPUT L1001 D5201 RB051L INPUT-1 R5201 F34DA200G -40G 1/16GJ 100C C5201 D1001 INPUT-1 CG1-R 02DZ IC5203 6.2YG R1001 CG1-G C5212 L1002 D1002 R5202 AD8185ARU L5201 25KZ0.1 F34DA200G K10A 02DZ GJ75 1/16GJ CG1-B GQFY 1/8GZ000 J11B0990N 6.2YG 100C CG1-R D1003 C5202 IC5202 R1002 K10F...
  • Page 121 R1112 R1111 1/16GJ 1/16GJ 100C 100C C1128 3.3V_AV R1109 25KZ0.1 D1101 1/16GJ GQFZ 1SS355 4.7KC C1127 C1124 10KZ 6.3EM 1UGQFZ R1108 47WM 1/16GZ0C C1125 25KZ0.1 GQFZ C1126 IC1161 Q1101 2SC2412 BA033FP-E2 C1101 C1121 R1107 C1123 25KZ0.1 1/16GJ 25KZ0.1 25KZ0.1 GQFZ GQFZ 470C GQFZ...
  • Page 122 R8001 1/16GZ R8002 RB8009 RB8010 1/16GZ R1EA1004G R1EA1004G ;R1A41004G ;R1A41004G RB8012 D_BO7 R1EA1004G ;R1A41004G D_BO6 RB8013 D_BO5 R1EA1004G D8031 L8001 ;R1A41004G 1SS355 D_BO4 L2PD RB8011 2R2MG C8021 5V_DVI 3.3V R1EA1004G D_BO3 CJ330 IC8003 C8003 ;R1A41004G CGQY D_BO2 6.3EM 100WM TC4053BF(EL) C8001 C8004 C8022...
  • Page 123 3.3V L6301 1/8GZ C6309 C6308 C6311 25KZ0.1 C6307 3.3V_SG KK1000 GQFZ 1000 25KZ0.1 GQBZ GQBZ GQFZ C6312 25KZ0.1 3.3V GQFZ 3.3V L4201 L4501 C4246 C4247 C4248 L2A7 C4501 L2A73R3MG C4245 6.3EM 25KZ 25KZ 25KZ 3R3MG 25KZ 47WM 0.1GQFZ 0.1GQFZ 0.1GQFZ 0.1GQFZ 3.3V1 3.3VIP...
  • Page 124 J11B2940G NTF-1 IC392 IC4201 R392 C394 C396 SI-3025LS-TL 1/16GZ 6.3EM 100WM 470D R1304 S3.3V S2.5V R1303 1/16GZ C391 1/16GJ10KC 25KZ0.1 CONVERTER R1305 GQFZ C395 1/16GZ 25KZ0.1 IC391 C392 GQFZ TP1304 6.3EM 100WM 2.5V_REG. J30A 00102 BA033FP-E2 C393 UPC2933T-E1 25KZ0.1 GQFZ TP1301E J30A 00102...
  • Page 125 R2592 L2591 1/16GJ 1/8GZ 160C 15V1 15V1 15VP C2591 R2591 16EM100D C2592 1/16GJ :16EM100F1 25KZ0.1 160C GQFZ L2592 B-D/A&S/H C512 1/8GZ D2592 13V1 25KZ0.1 1SS355 13V1 GQFZ STSQOB C2593 R504 D2591 C2594 XFRB 02DZ13YG 16EM100D 25KZ0.1 1/16GZ0C C514 :16EM100F1 C513 GQFZ SHCLKB 25KZ0.1...
  • Page 126 LENS SHIFT CONTROL LAMP POWER CONNECT POWER POWER TEMP. BOARD BALLAST DRIVE BOARD BOARD BOARD BOARD BOARD BAORD BOARD BOARD BOARD "K68A" "K7B" BOARD "K66D" "K66F" "K66E" "K9C" "K28A" "K16I" "K10Q" "K10R" "K10P" "K16R" J10EZ050G J10EG060G J10EP040G J10EG090G J10EG130G J10EP120G J10EG030G J10EP080G J10EP130G...

  • Page 127: Printed Wiring Board Diagrams

    Printed Wiring Board Diagrams CAUTION 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 sides (secondary circuit) at the same time.
  • Page 128 AV Board (SIDE:A) Drive Board (SIDE:A) AV Board (SIDE:B) Drive Board (SIDE:B) Drive Board “K16S” Zoom/Focus Motors Lens Shift Connect Board “K9B” K10T C5014 K20B Main Board “K8T” Board “K10T” Speakers K10H K10F C1023 Power Board “CN6C” “K8A” “K8C” “K8B” Main Board Control Board (SIDE:A) RC Front Board (SIDE:A)
  • Page 129 Main Board (SIDE:A) Main Board (SIDE:B) Sensor1 Board “K16I” Bright R9821 R4833 Q4831 Board 1AA4B10C28200_A R4843 R4842 R4840 B_side B_side A_side TP801 R4846 “K69A” R882 R1836 R1832 C819 R1834 R9819 R4832 R1813 R1833 R9822 R9823 R883 R1814 R884 R1816 RB9801 R885 Board R1817...

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