Canon LV-5200U, D78-5383, D78-5382, LV-5200E Service Manual

SERVICE MANUAL
English Edition
LV-5200U/D78-5382 LV-5200E/D78-5383
By Portable Document Format
1
General
0
2
Repair
3
Adjustment
4
Troubleshooting
5
Parts Catalog
6
Electrical Diagrams
DY8-1785-381 500
CANON Power Projector
LV-5200U D78-5382 LV-5200E D78-5383
SERVICE
SMANUAL
Technical Documents
Application
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Copyright © 2003 by Canon Inc. CANON INC. 30-2 Shimomaruko 3-Chome, Ohta-ku, Tokyo 146-8501, Japan
First published March, 2003
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 the tools required, and their application.
Part 3 Adjustment
Provides information for disassembly, reassembly, and adjustment of the product to assure precision of the products, about the tools required, and their application.
Part 4 Troubleshooting
Part 5 Parts Catalog
Part 6 Electrical Diagrams
2. Model Differences
In this series of products, there are models suffixed, "U", and "E". The only differences between the models are cosmetic, mainly the designation and rating plates. Internally, they are identical. The accessories bundled with the product may differ from country to country.
I
Main Marketing Area North America Europe
MULTIMEDIA PROJECTOR MULTIMEDIA PROJECTOR
Model Name LV-5200U LV-5200E
LV-5200U LV-5200E
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.)
3) Test Equipment
4) Other Equipment
5) Chart/Software
II
Description Tool No. Specification Remarks
Ball Driver CY9-5002-000 2.0mm Optical Parts Removal
& Adjustment
Hex Key Set CY9-5007-000 2.0mm Optical Parts Removal
& Adjustment Driver, adjustment CY9-5003-000 1.8mm Electrical Adjustments Driver, Slot CY9-5004-000 4.0mm Optical Parts
Adjustment Driver, Cross-point CY9-5005-000 No. 2 Assembly &
Disassembly
Description Tool No. Specification Remarks Digital Multi-meter Commercially available DC1mmV~500V Electrical Adjustment Video Signal Generator Commercially available Color Bars and Electrical Adjustment
Gray Scale Computer Signal Commercially available Gray Scale Electrical Adjustment Generator (or personal computer) Oscilloscope Commercially available 100MHz response or Waveform checks
over
Description Tool No. Specification Remarks Screen Commercially available Over 40" All Adjustment Personal Computer Commercially available Windows 95 OS All Adjustment
(with a floppy disk)
Description Tool No. Specification Remarks Monitor Tester Supplied with manual Bitmap Data Electrical Adjustment Gray Scale Chart Supplied with manual (XGA and SVGA) Electrical Adjustment Color Shading Supplied with manual Ver. 3.02 White Uniformity Correction Tool Adjustment
CONTENTS
Page
Part 1: General Information
1. FEATURES ...................................................................................................... 1-1
1.1 Development Objectives .......................................................................... 1-1
1.2 Product Overview .................................................................................... 1-1
1.3 Main Features .......................................................................................... 1-2
2. SPECIFICATIONS ........................................................................................... 1-3
2.1 Type ......................................................................................................... 1-3
2.2 LCD Panel ............................................................................................... 1-3
2.3 Optics ....................................................................................................... 1-3
2.4 Images ..................................................................................................... 1-3
2.5 Image Signals .......................................................................................... 1-3
2.6 Mechanisms ............................................................................................. 1-4
2.7 Connectors .............................................................................................. 1-4
2.8 Ratings ..................................................................................................... 1-4
3. FUNCTIONS .................................................................................................... 1-5
3.1 Optics ....................................................................................................... 1-5
3.2 Image ....................................................................................................... 1-5
3.3 Image Signal ............................................................................................ 1-7
3.4 Mechanisms and Systems ....................................................................... 1-7
4. ACCESSORIES ............................................................................................... 1-9
4.1 Principal Accessories ............................................................................... 1-9
4.2 Replacement Parts .................................................................................. 1-9
4.3 Optional Parts .......................................................................................... 1-10
5. PRECAUTIONS FOR USE .............................................................................. 1-11
6. OUTLINE DRAWINGS ..................................................................................... 1-12
7. CONNECTORS ............................................................................................... 1-13
8. DESCRIPTION ................................................................................................ 1-14
8.1 Optics ....................................................................................................... 1-14
8.2 Image ....................................................................................................... 1-14
8.3 Mechanism .............................................................................................. 1-15
Part 2: Repair Information
1. SAFETY INSTRUCTIONS ............................................................................... 2-1
2. CIRCUIT PROTECTIONS ............................................................................... 2-2
2.1 Fuse ......................................................................................................... 2-2
2.2 Thermal Switch ........................................................................................ 2-2
2.3 Interlock Switch ........................................................................................ 2-2
2.4 Warning Temperature and Power Failure Protection .............................. 2-3
2.5 Air Filter Care and Cleaning .................................................................... 2-3
3. SERVICE (MECHANICAL DISASSEMBLIES) ................................................ 2-4
3.1 Cabinet Top and Control Panel Removal ................................................ 2-4
3.2 Main Board Removal ............................................................................... 2-4
3.3 AV, DVI, Temp Board and Speaker Removal .......................................... 2-5
3.4 Front Panel and R/C Board Removal ...................................................... 2-5
III
3.5 Lamp Ballast Unit Removal ..................................................................... 2-6
3.6 Filter Board Removal ............................................................................... 2-6
3.7 Power Box Cover and Fans (FN901, FN906) Removal ........................... 2-7
3.8 Optical Unit Removal ............................................................................... 2-7
3.9 Power and P.F. Board Removal .............................................................. 2-8
3.10 Fan (FN905) Removal ........................................................................... 2-9
3.11 Fans (FN902, FN903, FN904) Removal ................................................ 2-9
4. OPTICAL PARTS DISASSEMBLIES ............................................................... 2-10
4.1 Projection Lens Removal ......................................................................... 2-10
4.2 Integrator Lens-In Disassembly ............................................................... 2-10
4.3 Condenser Lens Disassembly ................................................................. 2-11
4.4 Condenser Lens-Out Disassembly .......................................................... 2-11
4.5 Relay Lens-Out Disassembly .................................................................. 2-12
4.6 Polarized Glass-In Removal .................................................................... 2-12
4.7 Polarized Glass-Out/Pre-Polarized Glass Removal ................................. 2-13
4.8 Optical Unit Top Removal ........................................................................ 2-13
4.9 Locations and Directions ......................................................................... 2-14
5. LCD PANEL/PRISM ASS'Y REPLACEMENT ................................................. 2-15
5.1 LCD Panel/Prism Ass'y Removal ............................................................. 2-15
5.2 Note on LCD Panel/Prism Ass'y Mounting .............................................. 2-16
6. CLEANING ....................................................................................................... 2-17
7. LAMP REPLACEMENT ................................................................................... 2-18
Part 3: Adjustment
1. PRECAUTIONS FOR ADJUSTMENT ............................................................. 3-1
1.1 Adjustments after Parts Replacement ..................................................... 3-1
1.2 Service Adjustment Menu Operation ....................................................... 3-2
1.3 Service Adjustment Data Table ............................................................... 3-3
2. ELECTRICAL ADJUSTMENTS ....................................................................... 3-7
2.1 Output Voltage Adjustment ...................................................................... 3-7
2.2 Fan Voltage Adjustment .......................................................................... 3-8
2.3 Signal Center Adjustment ........................................................................ 3-8
2.4 PSIG Adjustment ..................................................................................... 3-8
2.5 Gain Adjustment [PC] .............................................................................. 3-9
2.6 Gain Adjustment [Video] .......................................................................... 3-9
2.7 Gain Adjustment [Component] ................................................................. 3-10
2.8 Gamma Gain Adjustment [PC] ................................................................ 3-10
2.9 Gamma Gain Adjustment [AV] ................................................................. 3-11
2.10 Common Center Adjustment ................................................................. 3-11
2.11 Signal Offset Adjustment [PC] ............................................................... 3-12
2.12 Signal Offset Adjustment [AV] ............................................................... 3-12
2.13 White Balance Adjustment ..................................................................... 3-12
2.14 Note On White Uniformity Adjustment ................................................... 3-13
3. OPTICAL ADJUSTMENTS .............................................................................. 3-14
3.1 Contrast Adjustment ................................................................................ 3-14
3.2 Condenser Lens Adjustment ................................................................... 3-15
3.3 Condenser Lens-Out Adjustment ............................................................ 3-16
3.4 Relay Lens-Out Adjustment ..................................................................... 3-17
IV
3.5 Optical Adjustment Setting ...................................................................... 3-18
4. TEST POINTS AND LOCATIONS ................................................................... 3-19
Part 4: Troubleshooting
1. TROUBLESHOOTING ..................................................................................... 4-1
1.1 No Power ................................................................................................. 4-1
1.2 No Picture ................................................................................................ 4-3
1.3 No Sound ................................................................................................. 4-5
1.4 Lens Motor Problems ............................................................................... 4-6
2. CHASSIS BLOCK DIAGRAMS ........................................................................ 4-7
2.1 Chassis Over View .................................................................................. 4-7
2.2 Inputs & Video Signal Processing Stage ................................................. 4-8
2.3 LCD Panel Driving Stage ......................................................................... 4-9
2.4 Audio Signal Processing Circuit ............................................................... 4-10
2.5 Motor Driving Circuit ................................................................................ 4-11
2.6 System Controls ...................................................................................... 4-12
2.7 Power Supply & Protection Circuit ........................................................... 4-13
2.8 Fan Control Circuit ................................................................................... 4-14
3. CONTROL PORT FUNCTIONS ...................................................................... 4-15
3.1 System Control & I/O Port Table ............................................................. 4-15
4. WAVEFORMS ................................................................................................. 4-17
5. IC BLOCK DIAGRAMS .................................................................................... 4-18
Part 5: Parts Catalog
Part 6: Electrical Diagrams
1. PARTS DESCRIPTION AND READING IN SCHEMATIC DIAGRAM..............6-1
2. DIODE, TRANSISTOR AND IC PINS...............................................................6-3
Schematic Diagrams .........................................................................................A3
Printed Wiring Board Diagrams.........................................................................A10
V
Part 1
General
Information
1. FEATURES
1.1 Development Objectives
At present, SVGAs between 1500 and 2000 ANSI comprise a fixed market scale worldwide. However, as of December 2002, Canon's projector lineup does not contain products in this class. To boost overall competitiveness, the need to strengthen the lineup is urgent.
Thus, Canon aims to enrich the product lineup and expand its market share by committing to types of products that are price-competitive in this product class.
To expand projector sales in 2003, a product has been commercialized as a new product (featuring SVGA, 1700 ANSI and weight of 4.3kg). This product uses the casing and other elements of existing models. Canon thus aims to expand its projector business sales volume in kind.
1.2 Product Overview
The exterior and projection lens of the LV-7355 and LV-7350 (hereinafter collectively referred to as the LV-7350) were appropriated for this product, and Canon's first 0.8­type SVGA liquid crystal panels were adopted to actualize a low-price model featuring high brightness: 1700 ANSI lumens. With uses spanning a wide range from business to personal, this Multimedia Projector will ensure satisfaction.
* The following LV-7350 functions have been eliminated:
Turbo Bright functions, horizontal keystone correction and accommodation of options (LV-WI01 and LV-MC01)
Part 1: General Information
1-1
Fig. 1-1 LV-5200 External View
1.3 Main Features
SVGA features 1700 ANSI lumens and a contrast ratio of 400 : 1
With the advantages of the LV-7350 fully utilized, 0.8-type panels were combined with a highly efficient 180-watt UHP lamp to achieve 1700 ANSI lumens. In addition, the new type of SVGA panel of 800 × 600 pixels achieves a 400 : 1 contrast ratio. Real SVGA and digital compression technology enable high-quality XGA projection.
Silent mode (34 dB)
This product's lamp can be switched from 180 watts (normal) to 150 watts (silent). When operating on low electric power in silent mode, the fan speed is curbed and noise silenced to 34 dB (A). When projecting on smaller screens in small meeting rooms or the like, projection of sufficient brightness can be obtained even with low electric power; thus, in addition to operating on low electric power in silent mode, a quiet room environment can be facilitated.
1.5××wide zoom lens
This product is equipped with an electromotive zoom lens of the industry's highest
magnification rate, 1.5×, which is the same as for the LV-7350.
For the 100-type screen, the projection distance ranges from 3.2 meters to 4.8 meters.
* In terms of screen size, values will not be the same as for the LV-7350, even at the
same projection distance. (See "Description.")
Analog RGB Output (switching)
This product can be used with the analog RGB terminal switched to either input or output. Use as an output terminal is possible when the DVI-I terminal is used for RGB input.
Conforms to SCART standards
With the optional cord, input signals from DVD players and other devices having a SCART output terminal can be accommodated. Thus, this product adapts to an even larger hardware environment.
OSD accommodates 12 languages
Russian has been added to the conventional 11 languages: English, German, French, Spanish, Italian, Portuguese, Dutch, Swedish, Chinese, Korean and Japanese.
Part 1: General Information
1-2
Part 1: General Information
1-3
2. SPECIFICATIONS
2.1 Type
1. Type: Projector
2. Product class: Ultra Portable class
3. Imaging element: Transmitting LCD panel
2.2 LCD Panel
1. Type: Polysilicon-TFT active matrix
2. Size and number: 16 mm × 12 mm (0.8", 4:3 aspect ratio ), 3 panels
3. Number of pixels: 48000 (800 × 600, SVGA)
2.3 Optics
1. System: Dichroic mirror separation and X-prism
combination system
2. Light source: 180 W UHP lamp
3. Projection lens configuration: 10 groups of 12 lenses
4. F number and focal length: F1.7 to 2.4, f = 25.7 to 37.9 mm
5. Zoom: 1.5 times, Motorized
6. Focus: Motorized
7. Lens shift: 26:1, fixed
2.4 Images
1. Brightness: 1700 ANSI lm (at normal mode) , 90% marginal
lumination ratio
2. Contrast ratio: 400:1 (all white to all black)
3. Projection distance coverage: 1.1 to 9.7 m
4. Screen size: 24" (0.49 m × 0.37 m) to 300" (6.10 m × 4.57 m)
5. Electronic zoom magnification: ×0.6 to ×4
6. Keystone correction range: ±20 degrees in up/down direction
2.5 Image Signals
1. Computer input: XGA (compression)/SVGA/VGA
2. Color systems *composite/S-Video: NTSC/PAL/SECAM/NTSC4.43/PAL-M/PAL-N
3. Scanning systems *component: 480i/480p/575i/575p/720p/1035i/1080i
4. Horizontal resolution: 500 TV lines *S-Video
5. Scanning frequency: H-sync: 15 to 80 kHz, V-sync: 50 to 100 Hz,
Dot clock: 100 MHz
2.6 Mechanisms
1. Adjustable feet, bottom front: Can be adjusted to raise the main unit a maximum
of 15.6º
2. Built-in speaker: 4 cm × 3 cm, 1 W, Monaural
2.7 Connectors (For further details, see "Connectors" in section 9.)
1. Digital RGB input DVI-I 29-pin
2. Analog RGB input (2 systems): Mini D-sub15 pin & DVI-I29 pin (also used for
digital)
3. Composite video input: RCA × 1
* VIDEO (also used for Y) terminal is only used
4. Component video input: RCA × 3
* 3 terminals (Y, Cb/Pb, Cr/Pr) are used
5. S-Video input: Mini DIN 4-pin
6. Audio input: Video: RCA × 2, Computer: Stereo mini-jack
7. Analog RGB output: Mini D-sub15-pin (also used for input, can be
switched)
8. Audio output: RCA × 2
9. Mouse control (2 systems): Mini DIN 8-pin, USB type B
2.8 Ratings
1. Dimensions (Not total length): W: 331.5 mm, D: 244.1 mm, H: 89.5 mm
(See Outline Drawings)
2. Weight: 4.3 kg
3. Rated supply voltage: J: 100 V / U: 100 to 120 V / 200 to 240 V,
50/60 Hz
4. Power consumption: 260 W
5. Noise: 36 (normal)/34 (silent) dB (A)
6. Ambient temperature range: 5 to 35 ºC
7. Storage temperature range: –10 to 60 ºC
Part 1: General Information
1-4
3. FUNCTIONS
3.1 Optics
Electromotive zoom and focus (same projection lens as the LV-7350)
The wide, telephoto zoom rate is 1.5×. Electromotive zooming is done within this range, and projection size is variable. In addition, focus is similarly electromotive, making appropriate position alignment possible.
3.2 Image
Projection distance and projection screen size
The appropriate projection distance is between 1.1 and 9.7 meters; thus, screens range from 24 to 300 inches. The following table presents the relationship between screen size and projection distance.
* H1 and H2 are the lengths that result from dividing the screen's height - top and
bottom - with the lens's optical access as the boundary. For this product, 26:1 is the ratio that results from the lens shift setting.
Keystone correction
This function corrects trapezoidal distortion of the projection screen resulting from how the projector is positioned. It functions within a range of ±20º in the up-down direction. (It does not function in the left-right direction.)
Image mode selection (by remote control)
Image mode can be selected depending on the type of input, as follows.
* [IMAGE] button: Switches the image mode, [INPUT] button: Switches the input
• Standard This setting is the average of images overall, both computer and video.
• High contrast (for computer input) This function brightly reproduces domains of medium brightness, thus showing the entirety brightly.
Part 1: General Information
1-5
Screen
Size[cm]
Projection Zoom max
distance [m] Zoom min
H1 [cm] H2 [cm]
24 type 49 × 37
(0.72)
1.10 35
1
36 type 73 × 55
1.11
1.67 53
2
100 type
203 × 152
3.18
4.76 147
6
150 type
305 × 229
4.80
7.16 220
8
200 type
406 × 305
6.42
9.57 294
11
300 type
610 × 457
9.66
(14.39)
440
17
Computer input
Video input
Standard Standard
High-contrast
Cinema
Custom Custom
• Cinema (for video input) This function raises domains of low brightness, thus improving their reproducibility. It has the effect of improving the reproducibility of dark scenes, which often occur in movies and the like.
• Custom mode Makes it possible to adjust any of the aforementioned with an additional ±8 stages, enabling the user to fine-tune reproducibility according to preference.
Electronic zoom
The desired area on the screen can be projected anywhere from 0.6 times to 4 times (enlarged or reduced).
Auto-Grayscale
This feature is effective in clearly displaying dark or low-contrast scenes that appear blurry, such as nighttime scenes. Turning this feature on automatically controls the image signal output so that the black levels and white levels of the output image are maximized.
Auto-Flesh tone
Processes the image so that the skin tones of people shown in an image more faithfully reflect those of actual people. Turning this feature on modulates human skin tones so that they approach predetermined settings. Since this modulates tones, the background and other areas will be shown in colors that differ from actual colors.
Freezing the screen (by remote control)
Pressing the [FREEZE] button will fixate the screen currently displayed. Use this function when you do not want to show the content of output devices on the screen, such as when performing tasks at a computer.
Showing no images (by remote control)
Use the [NO SHOW] button to display a blank screen instead of images.
Presentation timer (by remote control)
Pressing the [P-TIMER] button will start a count of the time that elapses, which will be displayed in the corner of the screen. Each time this button is pressed, the function will change as follows: start (display), stop, and reset (clear the display).
Image reversal
Settings for left-right reversed projection when projecting from the rear and left-right or up-down reversed projection when projecting from the ceiling can all be made.
Blue-back display
When a video input has been selected, this setting prevents a noise screen from appearing even when there is no image signal input.
Part 1: General Information
1-6
3.3 Image Signal
Computer input
• System mode Accommodates XGA, SVGA and VGA signals. Input can be analog or digital (DVI). For real SVGA projection, 0.8-type LCD panels with 800 × 600 pixels are used. Digital compression technology makes high-quality XGA projection possible.
• Multi-scan system This system distinguishes the horizontal and vertical frequencies of the image signals from a computer that has been connected and automatically selects the appropriate system mode.
• Automatic PC adjustment function Can be set to automatically adjust three items: the screen's total number of dots in the horizontal direction, tracking and screen position.
Composite input or S-Video input
• Color systems The following color systems are accommodated: NTSC, PAL, SECAM, NTSC4.43, PAL-M and PAL-N. Selecting AUTO enables the projector to automatically accommodate the appropriate color system, excluding PAL-M and PAL-N.
Component input
• Scanning systems The following systems are accommodated: 1080i, 1035i, 720p, 575p, 480p, 575i and 480i. (Selection can be made automatically or manually.) Accommodates color-differentiated signals (Y, Pb/Cb, Pr/Cr). Images can be obtained with no subdued colors.
3.4 Mechanisms and Systems
Adjustable feet
Adjustable feet have been provided on the front bottom of the main unit on the side of the projection lens. These feet can be adjusted to set the projector at an incline, enabling projection at an angle. A maximum angle of elevation of 15.6º can be established between the projector's optical axis and the table on which the projector rests. With one touch, the lock on the adjustable feet can be released and the feet stored inside the main unit.
* The aforementioned keystone correction function can be used to eliminate
trapezoidal distortion resulting from the projector being at an incline.
Part 1: General Information
1-7
Sound muting (remote control function)
Use the [MUTE] button on the remote control to turn sound off and on.
* The built-in 1-watt output speaker reproduces sound from PCs or videos in
monaural.
Power management
This function can be set so that the lamp automatically turns off if no image signals have been input for a set time (5 min.) and the projector has also not been operated. This power-management status will automatically be released when image signals are again input or the projector has again been operated. (The 90-second cooling operation that occurs directly after shutting off will not be released.)
Power ON - Start
The projector can be set so that it starts up as soon as the power cord has been connected.
Graphical user interface
Pressing the MENU button will display a menu bar on the screen. The display can be shown in one of eleven languages: English, German, French, Spanish, Italian, Portuguese, Dutch, Swedish, Chinese, Korean or Japanese. This multilingual feature enables the projector to be used around the world.
Voltage specifications to accommodate usage worldwide
The product is equipped with a power supply mechanism that accommodates sources of electricity from 90 to 264 volts.
Part 1: General Information
1-8
4. ACCESSORIES
4.1 Principal Accessories
Remote control unit
This wireless tool can be used for a variety of image-control purposes. Equipped with laser-pointer function, it can also be used to direct a red laser beam anywhere on the screen.
Remote control's specifications
• Power: DC 3.0 V; uses 2 dry-cell type-3 alkaline batteries
(which are included)
• Maximum distance operable: About 5 m (from the front of the receiver)
• Dimensions: 5.5 cm (W) × 19.2 cm (D) × 3.4 cm (H)
• Weight: 165 g
• Maximum laser output: 1 mW (class-2 laser product; IEC60825-1, Am.1, 1997)
• Laser wavelength: 650 ±20 nm
VGA Cable (Dsub15-Dsub15)
Use when inputting analog RGB image signal from a PC or the like.
DVI/VGA adapter
Use when inputting analog RGB image signal to the digital RGB input terminal from a PC or the like.
Mouse Control cable
Use for PS/2 port.
4.2 Replacement Parts
Canon's replacement lamp: LV-LP16
This lamp has a display that lights when the lamp needs to be replaced. We recommend replacing the lamp every 1,500 hours at normal mode. We recommend replacing the lamp every 2,000 hours at silent mode.
* 50% of the lamps will last for this time, with 50% of their illumination maintained.
Part 1: General Information
1-9
4.3 Optional Parts
SCART-VGA cable: LV-CA31
This connecting cable is new for the product. Use when connecting to the video apparatus with SCART output terminals.
Canon's metal fixture for suspending projector from ceiling: LV-CL05
This hanger part is used for suspending the projector from the ceiling.
* Consult a professional to install the projector in this way.
Others
LV-CA29 for DVI, LV-CA26 for serial, LV-CA27 for PDA
Part 1: General Information
1-10
5. PRECAUTIONS FOR USE
After the lamp has turned off, do not unplug the projector until its fan has stopped.
Insufficient cooling is a cause of trouble.
* To avoid the danger of being burned, make sure the lamp has cooled for at least 45
min. before replacing it.
Do not peer into the projection lens while it is emitting light.
The strong light of the high-bright projection could result in damage to one's vision.
Although the laser pointer built into the remote control meets class-2 safety standards, do not peer directly into the light-emission source or point it at anyone.
When the indication to replace the lamp appears, install a new lamp promptly.
The lamp used in the light source is a high-pressure mercury lamp. One feature of mercury lamps is that they can shatter from deterioration resulting over the course of their use. If a lamp shatters, we recommend that you contact your place of purchase and arrange for a replacement and inspection.
Part 1: General Information
1-11
6. OUTLINE DRAWINGS
Part 1: General Information
1-12
Fig. 1-2
Dimensions: (Not total length) W: 331.5 mm, D: 244.1 mm, H:89.5 mm Weight: 4.3 kg
* Dimensions are the same as for the LV-7350.
7. CONNECTORS
On the back of the main body are input systems, output systems and control ports.
Computer input A: Mini Dsub15 pin (Image) Analog RGB input B: DVI-I29 pin (Image) Digital & analog RGB input C: Mini pin jack (Audio) Stereo input
Video input D: RCA × 3 (Image) Component input with Y, Cb/Pb, Cr/Pr
RCA × 1 (Image) Composite input with VIDEO (also used for Y)
E: Mini DIN4 pin (Image) S image input with S-VIDEO F: RCA × 2 (Audio) Stereo input
Note: The built-in speaker outputs in monaural.
Output A: Mini Dsub15 pin (Image) Analog RGB output G: RCA × 2 (Audio) Stereo output
Mouse control (links PC or the like with projector via cable) H: USB type B USB port I: Mini DIN8 pin Control port
Other J: Reset button Restarts the projector
Part 1: General Information
1-13
F D
B
E A C H
J
G
I
Fig. 1-3
8. DESCRIPTION
8.1 Optics
Equipped with the wide zoom lens appropriated from the LV-7350 and new 0.79-size LCD panels (Nominal value is 0.8), this low-price model provides high brightness and high contrast.
In terms of brightness, switching the lamp's current enables two modes to be used: high or low brightness. (refer to the item of mechanism)
1.5××wide zoom lens
This 6-group zoom type is based on the 10-group, 12-lens configuration of the LV-
7350. A compact, wide-angle lens, it features the industry's highest magnification. Pb-free materials have been adopted for the lens.
LCD panel
For this product, Canon has adopted 0.79-type LCD panels (2.0 cm diagonal) for the first time.
8.2 Image
Projection screen size
Although the same projection lens is used as for the LV-7350, the LCD panels are smaller. Screen size is simply in proportion to panel size. Values for screen size at the same projection distance are the values for the LV-7350, multiplied by 0.79/0.9.
Screen size values (inches) calculated for projection distance
* Includes ranges outside the specifications
Connection of the cable for SCART (*1)
The image signal from the SCART terminal is connected to the analog RGB input (Dsub15) by the cable LV-CA31 (option).
In addition, this cable (LV-CA31) does not supported about audio signal.
*1 SCART is the standard of input and output of the video apparatus that is currently
used widely in Europe. In this standard, RGB image signal and audio signal are transmitted using the terminal of 21 pins.
Part 1: General Information
1-14
Distance
LV-7350 LV-5200
2 m
48.8 to 72.9
42.8 to 63.6
3 m
72.6 to 108
63.5 to 94.5
4 m
96.4 to 144
84.3 to 125
5 m 120 to 179 105 to 156
6 m 144 to 215 126 to 187
7 m 168 to 250 147 to 218
8 m 191 to 285 167 to 249
1 m
25.1 to 37.5
22.0 to 32.7
8.3 Mechanism
Cooling mechanism and Silent mode
In this model, the air flow mechanism is fundamentally the same as that of LV-7350. However, the lamp has been changed into 180 watts from 200 watts, as the result, the amount of heat has been decreased compared with LV-7350. Consequently, the fan speed could be lowered. Furthermore noise level has been down to 36 dB(A) from 37 dB(A).
And when the silent mode is selected, the lamp power is controlled to 150 watts, and the fan speed has been down, as the result this model becomes the more of energy saving and more silent as 34 dB(A).
Also this model has the system of the automatic fan speed control as same as the previous models.
Part 1: General Information
1-15
Normal
Silent
1700 ANSI lm
82% of above value
36 dB(A) 34 dB(A)
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.
Avoid electric shock.
Since an AC voltage is applied to the chassis for the set, touching the chassis during power-on may cause electric shock. When service is performed during power on, use an insulation transformer, wear protective gloves, and remove the plug during parts replacement.
Use specified parts.
The parts of the set have safety properties, such as inflammability and voltage withstand. Therefore, use replacement parts with the same characteristics as the original ones. The critical components for safety are indicated by mark in the schematic diagram and parts list must be replaced by the recommended parts.
Reinstall parts and wires in their original positions.
Insulating materials, such as tubes and tape, are used and some components are installed over a PC board for safety. Reinstall internal wires with clamps so that they do not touch any heat-generating or high-voltage parts.
Safety check after service
Verify that service locations are not deteriorated and all removed screws, parts and wires are installed in their original positions. In addition, perform the following test to ensure safety.
Insulation resistance test method
Remove the plug from the electric outlet and press the power switch. Using a 500V insulation resistance tester (or a multimeter if any insulation resistance tester is not available), check that the insulation resistance between each terminal of the plug and external exposed connector (external speaker connector, remote control connector, AV input/output connector, etc.) is 1 Mohm or higher. If not, the set must be inspected and repaired.
Precautions for servicing
Part 2: Repair Information
2-1
Components indicated by mark in the parts list and the schematic diagram designate components in which safety can be of special significance. It is, therefore, particularly recommended that the replacement of there parts be made by exactly the same parts. Using unspecified parts may worsen failure or cause fire or electric shock.
Eye damage may result from directly viewing the light produced by the lamp used in this equipment. Always turn off the lamp before opening the cover. Never turn the power on without the lamp to avoid electric shock or damage of the devices since the stabilizer generates high voltages (15kV - 25kV) at its starts. Since the lamp is very high temperature during units operation replacement of the lamp should be done at least 45 minutes after the power has been turned off, to allow the lamp cool-off.
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
The fuse is located inside of the projector. When either the LAMP indicator or the READY indicator is not illuminated, a fuse may be opened. Check the fuse according to the following steps. The specified fuse should be used as follows;
[How to replace the fuse]
1. Remove the cabinet top and main board according
to step 1 of "Service (Mechanical Disassembles)".
2. Remove the fuse from fuse holder.
To install the fuse, take reversed step in the above.
2.2 Thermal Switch
When the internal temperature of the projector reaches near 100 ˚C, the thermal switch (SW902) turns off the AC main power supply automatically. (Check the resistance between the terminals of the thermal switch by using a tester. If it is open, the thermal switch may be in operative.) Reset the thermal switch according to the following procedure.
[How to reset the thermal switch]
1. Remove the cabinet top according to step 1 of
"Service (Mechanical Disassembles)".
2. Press the reset button on the thermal switch.
2.3 Interlock Switch
The interlock switch (SW904) cuts AC power when the lamp cover is removed. If the lamp cover is opened to replace the lamp, the projector does not start. Reinstall the lamp cover.
Fuse Part No. CY2-8376-000
Part 2: Repair Information
2-2
Fig. 2-1
Fig. 2-2
CAUTION
Before pressing the reset button, disconnect the AC cord from the projector.
Fuse
Line Filter Board
Thermal switch (SW902)
Reset Button
Fig. 2-3
2.4 Warning Temperature and Power Failure Protection
The TEMP WARNING indicator flashes red and the projector will automatically turn off when the internal temperature of the projector exceeds the normal temperature or when stopping cooling fans or when the internal power supply lines are failed.
Check the following possible causes and wait until stopping the TEMP WARNING indicator flashing.
Possible causes
• Air filter is clogged with dust particles. Remove dust from the air filter.
• Ventilation slots of the projector are blocked. In such an event, reposition the
projector so that ventilation slots are not obstructed.
• Check if projector is used at higher temperature place (Normal operating temperature
is 5 to 35 ˚C)
If the TEMP WARNING indicator still continues to flash, there may be defects on cooling fans or power supply circuits. Please check fan operation and power supply lines referring to the "Power Supply Lines Chart".
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 projector.
To clean up the air filter, follow the cleaning procedure below.
1. Turn the power off, and disconnect the AC power
cord from the AC outlet.
2. Turn the projector up side down and remove the
air filter by pulling its latches upward.
3. Clean the air filter with a brush.
4. Replace the air filter properly. Make sure that
the air filter is fully inserted.
Part 2: Repair Information
2-3
Air filter
Fig. 2-4
CAUTION
Do not operate the projector with the air filter removed. It may result in the malfunction of the projector.
We recommend to avoid dusty, smoky place for operating the projector. The dust is stuck on the LCD panel and the mirror, and it may spoil the fine picture image.
Using in dusty place may cause the picture of poor 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.
When the above symptoms are noticed, please clean up the LCD panel and lens according to the "Cleaning Method".
Part 2: Repair Information
2-4
3. SERVICE (MECHANICAL DISASSEMBLIES)
Mechanical disassemble should be made following procedures in numerical order. Following steps show the basic procedures, therefore unnecessary step may be
ignored.
3.1 Cabinet Top and Control Panel Removal
1. Remove 4 screws A (M3 × 6) to take the Cabinet Top Ass’y upward off.
3.2 Main Board Removal
1. Remove 8 screws (M3 × 6) to take the Main Board upward off.
CAUTION
The parts and screws should be placed exactly the same position as the original otherwise it may cause loss of performance and product safety.
Fig. 2-6
Fig. 2-5
A
A
A
A
Cabinet top
Main Board
Screws Expression
(Type Diameter × Length) mm
T type M Type
3.3 AV, DVI, Temp Board and Speaker Removal
1. Remove 1 screw A (M4 × 8) to release grounding wires.
2. Pull the Rear Panel ass'y upward.
3. Remove 4 screws B (T3 × 6) and remove the AV Board.
4. Remove 4 screws C (T3 × 6) and remove the DVI Board.
5. Remove 4 screws D (T2.6 × 6) and remove the speaker.
6. Remove 1 screws E (T3 × 8) and remove the Sensor Board.
3.4 Front Panel and R/C Board Removal
1. Remove 3 screws A (M3 × 4), 1 screw B (M3 × 8) and unhook 2 hooks C at the both of
left and right side, and the take the Front Panel ass’y off.
2. Remove 1 screw D (T3 × 8) to take the R/C Board off.
Part 2: Repair Information
2-5
Fig. 2-7
Fig. 2-8
A
A
A
B
C
D
R/C board
A
B
B
B
C
DVI board
AV board
Speaker
B
C
C
D D
E
Temp board
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