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Canon LV-X4U Service Manual

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SERVICE MANUAL

By Portable Document Format
LV-X4U/D78-5532
LV-X4E/D78-5533
DY8-1785-531 500
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-X4U

  • Page 1: Service Manual

    English Edition PREFACE General SERVICE MANUAL Repair By Portable Document Format Adjustment LV-X4U/D78-5532 Troubleshooting LV-X4E/D78-5533 Electrical Diagrams Parts Catalog Electrical Diagrams DY8-1785-531 500...
  • Page 2 CANON Multimedia Projector LV-X4U D78-5532 LV-X4E D78-5533 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-X4J LV-X4U LV-X4E...
  • 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. PRODUCT OVERVIEW ................... 1-1 2. MAIN FEATURES .................... 1-2 3. SPECIFICATIONS ................... 1-3 3.1 Type ......................1-3 3.2 LCD panel ....................1-3 3.3 Optics ....................... 1-3 3.4 Images ..................... 1-3 3.5 Image signals ................... 1-3 3.6 Mechanisms .....................
  • Page 7 3.1 Cabinet Top, FN901 Removal ..............2-5 3.2 Cabinet Front, R/C Board, FN902, SP901 Removal ....... 2-6 3.3 Main Board Removal ................2-6 3.4 Rear Panel and AV Board Removal ............2-7 3.5 Optical Unit Removal ................2-7 3.6 Power, Lamp Ballast, Lamp Cover SW Board Removal ......2-8 3.7 Fans Removal ..................
  • Page 8 Part 4: Troubleshooting 1. TROUBLESHOOTING ..................4-1 1.1 Indicators and Projector Condition ............4-1 1.2 No Power ....................4-2 1.3 Power Control Timing Chart ..............4-5 1.4 No Picture ....................4-7 1.5 No Sound ....................4-9 2. CONTROL PORT FUNCTIONS ..............4-10 2.1 System Control &...

  • Page 9: Part 1: General Information

    Part 1 General Information...

  • Page 10: Product Overview

    Equipped with image input and system functions actualized in a part of the models launched after the LV-X2, such as 2-3 pull-down, this model also has new features including blackboard mode and security functions that have been incorporated for the first time ever in a Canon projector. Fig. 1-1 Exterior of LV-X4...

  • Page 11: Main Features

    Part 1: General Information 2. MAIN FEATURES XGA and achieving 1500 lm A 200 W SHP lamp has been adopted. The projector is compact and lightweight (micro-portable), and XGA achieves a bright display of 1500 lm. A4-file size, 2.9 kg With the compact body achieved through space-saving design, we were able to reduce projector weight to 2.9kg.

  • Page 12: Specifications

    Part 1: General Information 3. SPECIFICATIONS 3.1 Type 1. Product type Projector Micro Portable class 2. Product class 3. Imaging device Transmitting LCD panel 3.2 LCD panel 1. Number of pixels 1024 × 768 (XGA) 2. Size and number 16 × 12 mm (0.8", 4:3 aspect ratio), 3 panels 3.

  • Page 13: Terminals

    Part 1: General Information 3.7 Terminals 1. Mini D-sub15 pin (1) Analog RGB input/Component input/SCART input 2. Mini D-sub15 pin (2) Analog RGB input/Analog RGB output Composite input 3. RCA ×1 4. S-video terminal (Mini DIN 4 pin) S-Video input Audio input 5.

  • Page 14: Functions

    Part 1: General Information 4. FUNCTIONS 4.1 Optics Zoom/Focus This projector has a projection lens with a 1.6× zoom ratio. Zoom and focus are adjusted manually. Projection distance and projection screen size These products are capable of projecting accurately at distances between 1.0 and 7.7 meters.
  • Page 15 Part 1: General Information • Blackboard (Green) This is the optimum mode for projecting on blackboards (green). The intensity of the green light has been made relatively low. (Thus, the total amount of light is also low.) • Custom In this mode, users can make various video adjustments, based on one of the previous modes, to suit their personal preferences.

  • Page 16: Image Signals

    Part 1: General Information Reverse image This function allows the projected image to be reversed horizontally or vertically. When rear projection is selected, the projector projects images reversed horizontally. (Line-symmetry) When ceiling mount is selected, the projector projects images reversed both horizontally and vertically.

  • Page 17: Mechanisms And Systems

    Part 1: General Information 4.4 Mechanisms and systems Security Settings 1) Logo PIN Code Lock When this function is on, [Logo] and [Capture] can no longer be selected from the menu. A PIN code is also required in order to switch this function off. Therefore, you must enter the PIN code with the function on to use [Logo] or [Capture] and switch this function off.
  • Page 18 Part 1: General Information The Normal Mode is used to project with brightness priority. The Normal Mode is appropriate for large meeting rooms or in situations where the room cannot be darkened. The Silent Mode lowers the noise level by reducing the brightness. The Silent Mode is appropriate for small screens or in situations where lower light output is sufficient.

  • Page 19: Terminals

    Part 1: General Information 5. TERMINALS 5.1 Rear Panel The inputs, outputs, and other connectors are located on the back of the projector. AUDIO RGB IN-1/ VIDEO IN COMPONENT IN S-VIDEO IN SERVICE PORT COMPUTER AUDIO IN RESET AUDIO OUT RGB IN-2/ RGB OUT Fig.

  • Page 20: Configurations Of Terminals

    Part 1: General Information 5.2 Configurations of terminals Mini D-sub 15 pin (HDB15 pin) Red (R/Cr) Input / Output ----- Green (G/Y) Input / Output Ground (V sync.) Blue (B/Cb) Input / Output Ground / ----- ----- ----- H sync. Input / Output (Composit H/V sync) Ground (H sync.) 15 14 13 Ground (Red)

  • Page 21: Accessories

    Part 1: General Information 6. ACCESSORIES 6.1 Principal accessories Remote control unit Equipped with functions to display the pointer icon onscreen and control the projector via pushbuttons. • Power supply 3.0 DC V; uses two AA alkaline batteries (included) • Communication range Approx.

  • Page 22: Precautions For Use

    Part 1: General Information 7. PRECAUTIONS FOR USE 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 23: Description

    Part 1: General Information 8. DESCRIPTION 8.1 Optics This product adopts the features of the LV-7215 and other zoom lenses, the aperture ratio of the LCD panel is large, a 0.79 type (nominally 0.8 type), and the size has been reduced while achieving high luminosity with a 200 W SHP lamp.

  • Page 24: Image Signals

    These projectors continue the design concepts of Canon's power-projector series: an intelligent and beautiful appearance; a solid three-dimensional form refined to the finest detail; and the look and feel of an optical instrument. Canon's designers also aimed for a next-generation standard of simplicity and transparency that creates an approachable and agile impression.
  • Page 25 Part 1: General Information Details The optical engine is protected from impacts by encasing the focus ring with a cylinder, thereby keeping unforeseen accidents from disrupting a presentation. Furthermore, a more comfortable operating environment is created by placing the exhaust vent on the same side as the projector lens, keeping exhaust heat and fan noise away from people.

  • Page 26: Part 2: Repair Information

    Part 2 Repair Information...

  • Page 27: 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 28: 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. Fuse 2.1 Fuse A fuse is located inside of the projector.

  • Page 29: Warning Temperature And Power Failure Protection

    Part 2: Repair Information 2.4 Warning Temperature and Power Failure Protection The projector will be automatically turned off when the internal temperature of the projector is abnormally high, or the cooling fans stop spinning, or the power supplies in the projector are failed. •...
  • Page 30 Part 2: Repair Information [RECOMMENDATION] We recommend not to use the projector in dusty, smoky places. Using it in dusty place may cause the poor picture quality. When using under the dusty or smoky conditions, dust may accumulate on the LCD panel and lens inside it, and may resultantly be projected on the screen together with the picture.

  • Page 31: 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 CAUTION original otherwise it may cause loss of performance and product safety.

  • Page 32: Cabinet Front, R/C Board, Fn902, Sp901 Removal

    Part 2: Repair Information 3.2 Cabinet Front, R/C Board, FN902, SP901 Removal 1. Remove 2 screws A (M3×8), 2 screws B (M2.5×6) and disconnect terminal “K8D” and “K8Q” on the Main Board. 2. Pull the Cabinet Front forward off and remove 1 screw C (T3×6) to take the R/C Board and remove 4 screws D (T2×6) to take a speaker "SP901".

  • Page 33: Rear Panel And Av Board Removal

    Part 2: Repair Information 3.4 Rear Panel and AV Board Removal 1. Remove 1 screw A (T3×8) and screw B AV board (M4×6) to release grounding wire. 2. Pull the Rear Panel ass’y upward off. 3. Remove 5 screws (T3×6) and remove the AV Board.

  • Page 34: Power, Lamp Ballast, Lamp Cover Sw Board Removal

    Part 2: Repair Information 3.6 Power, Lamp Ballast, Lamp Cover SW Board Removal 1. Remove the isolation plate on the Isolation plate power box. Power Board 2. Remove 4 screws A (T3×6) and disconnect terminals “K6A”, “K6B” and “K6D” then remove Power Board upward.

  • Page 35: Optical Parts Disassemblies

    Part 2: Repair Information 4. OPTICAL PARTS DISASSEMBLIES Before taking this procedure, remove Cabinet Top, Cabinet Front and Main Board following to the “Mechanical Disassemblies”. Disassembly requires a 2.0mm hex wrench. 4.1 Projection Lens Removal 1. Remove 4 screws (M2.5×8) and remove the Projection Lens. Fig.

  • Page 36: Relay Lens-Out Disassembly

    Part 2: Repair Information 4.3 Relay Lens-Out Disassembly 1. Remove 2 screws A (M2.5×5) and pull the Relay Lens-Out ass’y upward. 2. Remove 2 screws B (M2×3) to take the Lens off from the holder. Note: There is no mounting direction of the lens. Holder Relay Lens-Out Fig.

  • Page 37: Lcd Panel/Prism Ass'y Removal

    Part 2: Repair Information 4.5 LCD Panel/Prism Ass’y Removal 1. Insert the hexial driver into a hole on the cabinet bottom and loosen LCD Panel/ 1 screw A on the Prism base. Prism Ass’y 2. Loosen 2 screws B on the LCD Panel/Prism ass’y.

  • Page 38: Polarized Glasses-Out Removal

    Part 2: Repair Information 4.6 Polarized Glasses-Out Removal 1. Remove 1 screw A and remove the holder A and loosen 2 screws B then take the polarized glasses (R) and (B). 2. Remove 1 screw C and remove the stopper B and then take the polarized glass (G). Stopper B Holder A Polarized Glass(G)

  • Page 39: Locations And Directions

    Part 2: Repair Information 4.8 Locations and Directions When the optical parts in the optical unit Key No. Description mounting or assembling, the parts must be Integrator lens (OUT) mounted in the specified location and direction Prism beam splitter (PBS) as shown in figure below.

  • Page 40: Cleaning

    Part 2: Repair Information 5. 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 41: Lamp Replacement

    Part 2: Repair Information 6. LAMP REPLACEMENT • For continued safety, replace with a lamp assembly of the same type. • Allow the projector to cool for at least 45 minutes before you open the WARNING lamp cover. The inside of the projector can become very hot. •...
  • Page 42 Part 2: Repair Information [How to reset lamp replace counter] 1. Turn the projector on, press the MENU button and the On-Screen Menu will appear. Press the Point Left/Right button to move the red frame pointer to the Setting Menu icon.

  • Page 43: Adjustment

    Part 3 Adjustment...

  • Page 44: Adjustments After Parts Replacement

    Part 3: Adjustment 1. ADJUSTMENT 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, the re-adjustments are required following to the “Electrical Adjustments”.

  • Page 45: 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 buttons 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 46: 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 47 Part 3: Adjustment Initial ItemNo. Name Device YCbCr Video Detail 480i(+) 480p(+) NTSC Note: 480i(+) = 480i & 575i, 480p(+) = 480p & HDTV TFT Panel Driver Enable R L3E07070 FAN CONTROL Fan1 Min. Adjust M62393FP Fan2 Min. Adjust M62393FP Fan Control Adjustment Fan3 Min.
  • Page 48 Part 3: Adjustment Initial ItemNo. Name Device YCbCr Video Detail 480i(+) 480p(+) NTSC Note: 480i(+) = 480i & 575i, 480p(+) = 480p & HDTV DVCO Line-locked Center Frequency Adjust VPC3230 Note 1 2656 DVCO-Adjust VPC3230 Note 1 Read only TA1370 SEP.
  • Page 49 Part 3: Adjustment Initial ItemNo. Name Device YCbCr Video Detail 480i(+) 480p(+) NTSC Note: 480i(+) = 480i & 575i, 480p(+) = 480p & HDTV Position (Vertical) 480p PIXEL Expand Ratio (Vertical) 575p PIXEL For Component 575p mode Expand Ratio (Horizontal) 575p PIXEL Position (Horizontal) 575p PIXEL...
  • Page 50 Part 3: Adjustment Initial ItemNo. Name Device YCbCr Video Detail 480i(+) 480p(+) NTSC Note: 480i(+) = 480i & 575i, 480p(+) = 480p & HDTV Auto Grayscale black control limit point Auto Grayscale white control start point Auto Grayscale white control limit point G-Gamma Shift Differential at Hi-Contrast R-Gamma Shift Differential at Hi-Contrast B-Gamma Shift Differential at Hi-Contrast...

  • Page 51: 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 52: Fan Control Adjustment

    Part 3: Adjustment 2.2 Fan Control Adjustment 1. Set the lamp mode to "Normal" and then enter the service mode. 2. Connect a digital voltmeter to test point “TPFANB” (+) and chassis ground (–). Select item no. “81” and change data value to adjust voltage to be 6.0 ±0.1V. 3.

  • Page 53: Pedestal Adjustment [Component]

    Part 3: Adjustment 2.4 Pedestal Adjustment [Component] 1. Receive the 16-step gray scale 1080i component video signal with Computer1 [Component] mode. 2. Enter the service mode. 3. Connect an oscilloscope to test point “TPVIDEOG” (+) and chassis ground (–). 4. Select item no. “203” and change data value to adjust the pedestal level and black level to be the same level.

  • Page 54: Gain Adjustment [Av-Video]

    Part 3: Adjustment 2.6 Gain Adjustment [AV-Video] 1. Receive the 16-step grey scale composite video signal with Video [Video] mode. 2. Enter the service mode. 3. Connect an oscilloscope to test point “TPVIDEOG” (+) and chassis ground (–). 4. Select item no. “7” and adjust the amplitude “a” to be minimum by changing the Data value.

  • Page 55: Video Center Adjustment

    Part 3: Adjustment 2.8 Video Center Adjustment 1. Receive the 16-step grey scale computer signal with Computer1 [RGB] mode. 2. Enter the service mode 3. Connect a digital voltmeter to test point “TPGV1” (+) and chassis ground (–). 4. Select item no. “1” and change data value to adjust the voltage to be 7.0 ±0.05V. 5.

  • Page 56: Common Center Adjustment

    Part 3: Adjustment 2.10 Common Center Adjustment 1. Receive the 1 line black/white pattern computer signal with Computer1 [RGB] mode. 2. Enter the service mode. 3. Project only green light component to the screen. 4. Select item no. “13” and change data value to obtain the minimum flicker on the screen.

  • Page 57: White Balance Adjustment

    Part 3: Adjustment 2.12 White Balance Adjustment [PC white balance adjustment] 1. Receive the 16-step gray scale computer signal with Computer1 [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. [AV white balance adjustment] 1.

  • Page 58: Optical Adjustments

    Part 3: Adjustment 3. OPTICAL ADJUSTMENTS Before taking optical adjustments below, remove the Cabinet Top following to the “Mechanical Disassemblies”. Adjustments require a 2.0mm hex wrench and a slot screwdriver. When you adjust Integrator lens or Relay lens adjustment, you need to disconnect FPC cables of LCD panels on the main board.

  • Page 59: Integrator Lens Adjustment

    Part 3: Adjustment 3.2 Integrator Lens Adjustment 1. Turn the projector on by a state of without FPC cables. 2. Project all of lights on the screen. 3. Adjust the adjustment base of integrator White lens assy to make color uniformity in white. 1) If the shading appears on the left or right of the screen as shown in Fig.3-13, loosen 2 screws A, and adjust the slot B...

  • Page 60: 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. Project all of lights on the screen. 3. Adjust the adjustment base of relay lens assy White to make color uniformity in white. If the shading appears on the left or right of the screen as shown in Fig.3-15, loosen 1 screw A, and adjust the slot B to make color...

  • Page 61: Test Points And Locations

    Part 3: Adjustment 4. TEST POINTS AND LOCATIONS Main board IC5641 IC4801 K25B IC5302 K25R IC5001 Fig. 3-16 3-18...

  • Page 62: Troubleshooting

    Part 4 Troubleshooting...

  • Page 63: Indicators And Projector Condition

    Part 4: Troubleshooting 1. TROUBLESHOOTING 1.1 Indicators and Projector Condition Check the indicators for projector condition. Indicators Projector Condition LAMP POWER WARNING REPLACE red/green yellow The projector is OFF. (The AC power cord is unplugged.) The projector is ready to be turned on with the POWER button. The projector is operating normally.

  • Page 64: No Power

    Part 4: Troubleshooting 1.2 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 of LED indicators are not lighting, the symptom indicates that the primary power supply circuit does not operate properly.
  • Page 65 Part 4: Troubleshooting • An abnormality occurs on power starter signals (ON_5VA, ON_3.3V, ON_15V, LAMPDC_ON, DC_ON); LAMDC_ON signal (Power-on:H) is output from pin 15 of IC1803 and applied to PC643 on the Power Board. It drives the power oscillation circuit and power supply in the Power Board.
  • Page 66 Part 4: Troubleshooting [Reset switch] The microprocessor inside the projector may occasionally malfunction and does not accept 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 67: Power Control Timing Chart

    Part 4: Troubleshooting 1.3 Power Control Timing Chart Confirm the control signals at the timing of "Power On", "Power Off" and "Power management". Power on Power On Timing Chart AC On Power Key On LAMPDC_ON 600ms DC_ON 600ms ON_15V 600ms ON_3.3V 100ms ON_5VA...
  • Page 68 Part 4: Troubleshooting Power Management Power Management Timing Chart Power Key Enter Suspended Mode LAMPDC_ON 90 sec. (Cooling Time) ON_15V ON_3.3V ON_5VA FAN_SW1 FAN_SW2 LAMP_POW (Lamp On) Power Fail Detection Enabled Detection Disabled Lamp Error Detection Enabled Detection Disabled...

  • Page 69: No Picture

    Part 4: Troubleshooting 1.4 No Picture Check following steps. No picture with all of Check signal processing stage and LCD driving stage; input sources Check RGB S&H signals at test points TPVIDEOR, TPVIDEOG, TPVIDEOB. Check power supply circuit 15.5V and peripheral circuit. Check ICs IC501, IC531, IC561, IC3501, IC3531, IC401, IC301 and peripheral circuits.
  • Page 70 Part 4: Troubleshooting From previous page No picture with S-VIDEO Check AV source selecting stage; input source Check S-video signal (Y/C) on the AV board. S-C signal is applied to pin 71 of IC101<Video Decoder>, and S-Y signal is applied on pin 73 of IC101. S_SW signal (S-VIDEO:L) is input to pin 9 of IC1811<I/O>.

  • Page 71: No Sound

    Part 4: Troubleshooting 1.5 No Sound Check following steps. Is the audio signal Check PC/AV-AUDIO switching circuit. observed at pins 10 and Check IC5001, audio-sw IC, and peripheral circuit. 21 of IC5001? Check signals "P_SCLK2" and "P_SDA2" at pins 13,14 of IC5001.

  • Page 72: 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 73: Iic Bus D/A Converter (Ic3531, M62398Fp) Port Functions

    Part 4: Troubleshooting Pin No. Name Function Name Function Polarity I/OI/O 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 ROM Output Enable for Flash ROM...

  • Page 74: Iic Bus D/A Converter (Ic7961, M62393Fp) Port Functions

    Part 4: Troubleshooting 2.3 IIC Bus D/A Converter ( IC7961, M62393FP) Port Functions Pin No. Name Function Action Reset Fixed “H” IIC SCL Active “L” IIC SDA Active “L” FAN_CON_A FAN_CON_B FAN_CON_C Not used VrefL D/A converter lower ref. voltage Connected to GND VrefU1 D/A converter upper ref.

  • Page 75: Output Expander (Ic1803, Tc74Lcx574Ft) Port Functions

    Part 4: Troubleshooting 2.6 Output Expander (IC1803, TC74LCX574FT) Port Functions Pin No. Name Function Name Function Polarity IO_ENB ADD1_CS Output Port Chip Select Enable = L LAMPDC_ON Drives Lamp Ballast Unit Power-on=H DC_ON Drives 15.5V Power Supply Power-on=H ON_3.3V Drives 3.3V Power Supply Power-on=H FAN_SW2 Not used...

  • Page 76: Waveform

    Part 4: Troubleshooting 3. WAVEFORM VIDEO-IN <TP103, IC101-75> Analog H-SYNC <TPGHS> Analog V-SYNC <TPGVS> Digital H-SYNC <TPDHS> Digital V-SYNC <TPDVS> NRS <TPVCOMB/G/R> R-S&H OUT <TPVIDEOR> G-S&H OUT <TPVIDEOG> B-S&H OUT <TPVIDEOB> 4-14...

  • Page 77: Ic Block Diagrams

    Part 4: Troubleshooting 4. IC BLOCK DIAGRAMS AD8075 <Video Buffers, IC4001> AD8074 /AD8075 DGND OUT2 +1/+2 AGND OUT1 +1/+2 AGND OUT0 +1/+2 BA7078 <Sync Detector, IC5301> 4-15...
  • Page 78 Part 4: Troubleshooting AD9883AKST <Analog Flat Panel Interface, IC8201> CLAMP OUTA CLAMP OUTA CLAMP OUTA MIDSCV HSYNC DTACK SYNC COAST PROCESSING HSOUT AND CLOCK CLAMP VSOUT GENERATION SOGOUT FILT BYPASS SERIAL REGISTER AD9883A POWER MANAGEMENT FA7701 <Switching Power Supply Control, IC7861, IC7911> 4-16...
  • Page 79 Part 4: Troubleshooting AN5870SB <RGB,SYNC-SW, IC5201> LM4889 <Audio Amplifier, IC5031> 4-17...
  • Page 80 Part 4: Troubleshooting M51204 <Comparator, IC1871> Output Reverse Input Input BA9743AFV <DC-DC Converter, IC371> 4-18...
  • Page 81 Part 4: Troubleshooting FA5502 <P.F. Control, IC621> VPC3230D <Video Decoder, IC101> 4-19...
  • Page 82 Part 4: Troubleshooting L3E07070 <Signal Processor for TFT LCD, IC401> NJW1141 <Audio Selector, IC5001> 4-20...
  • Page 83 Part 4: Troubleshooting STR-Z2156A <Power Switching Control, IC631> PW168A <Scaler, Main CPU, IC301> 4-21...
  • Page 84 Part 4: Troubleshooting TA1370FG <Sync Separator, Frequency Counter, IC5302> 4-22...

  • Page 85: Part 5 Parts Catalog

    Part 5 Parts Catalog...
  • Page 87 Power Projector LV-X4J REF. NO. D78-5531 Multimedia Projector LV-X4U D78-5532 LV-X4E D78-5533 PARTS CATALOG CONTENTS Page 1: Mechanical Parts Page 2: Optical Parts-1 Page 3: Optical Parts-2 Page 4: Electrical Parts Page 5: Attached Parts...
  • Page 88 Page 1 REF. NO. D78-5531 CANON LV-X4J D78-5532 LV-X4U D78-5533 LV-X4E LABEL2 LABEL1 Mechanical Parts...

  • Page 89: Parts List

    DY5-0367-000 PANEL, FRONT R DY5-0586-000 PANEL, SIDE DY5-0369-000 COVER, SIDE DY5-0554-000 HOLDER, SPEAKER MOUNT DY5-0477-000 HOLDER, SPEAKER DY5-0014-000 PLATE, CANON LOGO LABEL1 DY5-0634-000 LABEL, POWER SWITCH LABEL2 DY5-0069-000 LABEL, PROJECTOR DY5-0587-000 HOLDER, POWER UNIT DY5-0372-000 COVER, DUCT TOP LCD DY5-0373-000...
  • Page 90 Page 2 Page 2 REF. NO. D78-5531 CANON LV-X4J D78-5532 LV-X4U D78-5533 LV-X4E L2-c L2-b Optical parts-1...
  • Page 91 PARTS LIST Pg. 2 REF.NO. D78-5531 D78-5532 D78-5533 SYMBOL PARTS NO. CLASS DESCRIPTION REMARKS DY5-0588-000 PRISM/LCD ASS'Y L2-a DY5-0589-000 GLASS, PL OUT, G L2-b DY5-0590-000 GLASS, PL OUT, B L2-c DY5-0591-000 GLASS, PL OUT, R DY5-0388-000 LENS, RELAY OUT DY5-0392-000 LENS ASS'Y DY5-0393-000 LENS, INTEGRATOR IN...
  • Page 92 Page 3 REF. NO. D78-5531 CANON LV-X4J D78-5532 LV-X4U D78-5533 LV-X4E Optical parts-2...
  • Page 93 PARTS LIST Pg. 3 REF.NO. D78-5531 D78-5532 D78-5533 SYMBOL PARTS NO. CLASS DESCRIPTION REMARKS DY5-0385-000 LENS, CONDENSER OUT DY5-0387-000 LENS, RELAY IN DY5-0389-000 LENS, CONDENSER, R DY5-0390-000 LENS, CONDENSER, B DY4-6055-000 LENS, CONDENSER, G DY5-0391-000 PRISM ASS'Y DY5-0394-000 LENS, INTEGRATOR OUT DY5-0395-000 MIRROR, B DY5-0396-000...
  • Page 95 D78-5532 D78-5533 SYMBOL PARTS NO. CLASS DESCRIPTION REMARKS A2801 DY5-0601-000 PCB ASS'Y, RC A3001 DY5-0602-000 PCB ASS'Y, MAIN LV-X4U/E A3001 DY5-0602-001 PCB ASS'Y, MAIN LV-X4J A600 DY5-0604-000 PCB ASS'Y, POWER A690 DY5-0605-000 PCB ASS'Y, LAMP COVER A901 DY5-0599-000 LAMP BALLAST ASS'Y...
  • Page 96 Page 5 REF. NO. D78-5531 CANON LV-X4J D78-5532 LV-X4U D78-5533 LV-X4E Accessories...
  • Page 97 D78-5532 D78-5533 SYMBOL PARTS NO. CLASS DESCRIPTION REMARKS DY5-0598-000 REMOTE CONTROLLER DY5-0405-000 COVER, BATTERY REMO-CON CY2-8293-000 POWER CORD, AC120V LV-X4U CY2-8295-000 POWER CORD, AC240V LV-X4E CY3-8299-000 POWER CORD, AC100V LV-X4J CY2-8288-000 ADAPTER, POWER PLUG LV-X4J DY5-0609-000 LABEL, PIN CODE DY5-0030-000...
  • Page 98 INDEX OF PARTS LIST Pg. 6 REF.NO. D78-5531 D78-5532 D78-5533 PAGE SYMBOL PARTS NO. PAGE SYMBOL PARTS NO. CY2-8288-000 DY5-0380-000 CY2-8293-000 DY5-0381-000 CY2-8295-000 DY5-0382-000 CY2-8298-000 DY5-0383-000 CY3-8299-000 DY5-0384-000 DY4-5802-000 DY5-0385-000 DY4-5803-000 13 DY5-0387-000 F901 DY4-5918-000 DY5-0388-000 DY4-6047-000 DY5-0389-000 DY4-6055-000 DY5-0390-000 DY4-6131-000 DY5-0391-000 SW902...
  • Page 99 INDEX OF PARTS LIST Pg. 7 REF.NO. D78-5531 D78-5532 D78-5533 PAGE SYMBOL PARTS NO. PAGE SYMBOL PARTS NO. L2-a DY5-0589-000 L2-b DY5-0590-000 L2-c DY5-0591-000 DY5-0592-000 DY5-0593-000 DY5-0594-000 DY5-0595-000 DY5-0596-000 DY5-0598-000 A901 DY5-0599-000 LP900 DY5-0600-000 A2801 DY5-0601-000 A3001 DY5-0602-000 A3001 DY5-0602-001 AA4000 DY5-0603-000 A600...

  • Page 100: Part 6: Electrical Diagrams

    Part 6 Electrical Diagrams...

  • Page 101: 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 102 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 103: 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 104: Chassis Block Diagrams

    Chassis Block Diagrams Chassis over view SPEAKER B-LCD PANEL G-LCD PANEL R-LCD PANEL IC3531 IIC BUS CONTROL BRIDGE DIODE THERMAL D-SUB_15 D-SUB_15 AUDIO...
  • Page 105 Chassis Block Diagrams Video signal processing circuit K25B K25G K25R SYSTEM_BUS 15,19,23 37,41,45 49 31,33 K10Y K10T G_SYNC PC1/PC2_SW S_SW RGB IN-1 / RGB--2 IN / S_VIDEO IN VIDEO IN COMPONENT IN RGB OUT...

  • Page 106: System Controls

    Chassis Block Diagrams System controls 47-50 51,52 45,43 IC501, IC4811 IC7961 IC531, IC1802 IC1801 LAMP OUTPUT OUTPUT CONTROL IC561 EXPANDER EXPANDER S&H IC8831 TEMP. SENSOR IC8821 IC1804 TEMP. IC3531 OUTPUT SENSOR EXPANDER IC8811 IC5302 TEMP. YUV_SYNC SENSOR IC5001 AUDIO IC4801 INVERTER IC1803 IC1811...
  • Page 107 Chassis Block Diagrams Power supply & protection circuit K25B K25G K25R 9,10 Fan Error : L Lamp-On: H D3614 FAN_B D3616 FAN_C IC4801 INVERTER Lamp-On: L SCEL 11 12 11 12 375V FUSE THERMAL SW...

  • Page 108: Fan Control Circuit

    Chassis Block Diagrams Fan control circuit TPFANC Q7912 FN906 15.5V FAN_C D3623 FN905 Q7911 D3616 IC7911 D3622 FN904 Q7914 D3621 FN902 TPFANB P_Fail: H Q7862 D3624 FN903 FAN_B D3627 D3614 Q7861 IC7861 FN901 Q7864 Q7801 FAN_ERR D3626 P_Fail: L Q3601 POWER_FAIL P_FAIL Power Error: On...

  • Page 109: Schematic Diagrams

    Schematic Diagrams CAUTION C2851 Fuse of the specified parts number must be used. D2861 25KZ 02DZ6.2YG 0.1GQFZ Unauthorized substitutions may result in fire or accident. KEY SW PROJECTION LENS D2851 SML-210YTLG K68A LAMP J10EZ150G REPLACE D2852 THERMOSTAT_SW (YELLOW) SML-210LTMG (SET TO OPEN AT 90±5°C) K8A_5V WARNING TEMP...
  • Page 110 R5238 R5239 C5221 1/3GZ0 C5223 1/10GJ10 IC5201 16EM 6.3EM C5222 2203T 473T 10KZ1 C5219 UGQF AN5870SB 16KZ1FA R8254 1/16GJ C5226 RIN1 16KZ1FA R5201 C5201 GBLKSPL (FROM IC301 156P) 1/16GJ 16KZ 100C 2.2FA R/Cr R5233 L1001 SC1001 L1002 R1001 C8256 F34DG407G 1/16GJ 1/8GZ000 1/3GJ75...
  • Page 111 S3.3V_PW IC9401 IC1841 R1841 Q1841 1/16GZ 2SK536P 24LC32AT-I/SN Schematic Diagrams R1844 R1847 C1841 1/16GJ SYSTEM CONTROL 1/16GJ 25KZ0.1 3.3KC 4.7KC TEST GQFZ Main Board P. 4/4 P_SCLK1 P_SCLK1 IC8811 R1848 R1842 CONNECT SYBY ACTIVE IC TE301 IC8821 & 1/16GJ 1/16GJ (FROM IC8811 TEMP SENSOR 1) J30B1640G R1846...
  • Page 112 S3.3V_PW IC9401 IC1841 R1841 Q1841 1/16GZ 2SK536P 24LC32AT-I/SN Schematic Diagrams R1844 R1847 C1841 1/16GJ SYSTEM CONTROL 3.3KC 1/16GJ 25KZ0.1 4.7KC GQFZ TEST Main Board P. 2 2/4 P_SCLK1 P_SCLK1 IC8811 R1848 R1842 TE301 CONNECT SYBY ACTIVE IC IC8821 & 1/16GJ 1/16GJ R1846 (FROM IC8811 TEMP SENSOR 1)
  • Page 113 IC301 TPB-V1 15.5VL L2501 L2506 15.5VP R517 TPB-V2 TPB-V2 1/8GZ000 1/8GZ000 1/16GZ0C J30B1640G J30B1640G TPB-V1 IC401 NT_TP15V 15.5V C2507 Q2501 25KZ R519 R2501 P_FAIL R513 1/16GJ100C 1/16GJ2.2KC 2SA1203Y 0.1GQFZ REF_B B_V1 1/16GJ C2506 D3609 TPBV1 R518 1/16GJ2.2KC 1.5KC C529 1SS355 16EM1001V B_V2 R2502...
  • Page 114 LAMP BALLAST FN904 FN905 FN906 FN902 FN901 FN903 UNIT SPEAKER LAMP "K28D" "CN02" COVER FN904 FN905 FN906 FN902 FN901 FN903 PANEL R PANEL G PANEL B POWER EXHAUST PBS FAN (TO BALLAST) (TO RC PREAMP) "K690" IC4851 K48A J10EG030G J10EP030G J10EP030G TC7SET32FU-(TE85L) C4854...
  • Page 115 LAMP BALLAST FN904 FN905 FN906 FN902 FN901 FN903 UNIT SPEAKER LAMP "K28D" "CN02" COVER FN904 FN905 FN906 FN902 FN901 FN903 PANEL R PANEL G PANEL B POWER EXHAUST PBS FAN (TO BALLAST) (TO RC PREAMP) "K690" IC4851 K48A J10EG030G J10EP030G J10EP030G TC7SET32FU-(TE85L) C4854...

  • Page 116: 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 117 MAIN (SIDE:A) KEY SW “K68A” FN902 LAMP BALLAST 1AA4B10C4350A K48A UNIT R4846 R4822 R4824 R4821 R4823 “CN02” R3601 R4827 R4826 IC4811 D3617 R5632 R5601 R4831 R2859 A SIDE R3602 TPDHS TPMONB C8813 C8811 TPDVS D3626 Q2854 R4806 R4837 R2872 R3626 Q2852 Q2853 RB1407 R4804...
  • Page 118 MAIN (SIDE:B) POWER “K6R” SP901 C5606 D4844 D4843 R4815 R4819 D4841 R4814 R4844 R4813 C4816 C5603 C5601 C5608 C5607 C5609 R4812 R4843 B SIDE B SIDE IC8811 C4814 D4842 C8812 C4813 R4816 R4857 C4851 C401 C4853 R4852 R8812 R4856 R4851 IC4851 RB401 RB402...
  • Page 119 POWER (SIDE:A) POWER (SIDE:B) LF901 L601 VA601 R611 THERMOSTAT PTH611 R612 “SW902” C612 R62T C613 C62T D62R C62F R62R R62M C62E C614 C62C R62B R62C C62B R62D R659 PC642 C641 MAIN “K8R” PC641 R636 FB693 LAMP BALLAST UNIT DS643 “CN01” C634 R/C (SIDE:A) R/C (SIDE:B)

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