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LCD1550ME
MODELS LCD1550ME (B) / -BK(B)
Service Manual
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PART NO. 599910589
SERVICE MANUAL
COLOR MONITOR
MultiSync LCD1550ME
MODELS LCD1550ME (B) / -BK(B)
NEC-MITSUBISHI ELECTRIC VISUAL SYSTEMS CORPORATION JUNE 2002
200206 08EK1ABD 08EK2ABD
WARNING
The SERVICE PERSONNEL should have the appropriate technical training, knowledge and experience necessary to: · Be familiar with specialized test equipment, and · Be careful to follow all safety procedures to minimize danger to themselves and their coworkers. To avoid electrical shocks, this equipment should be used with an appropriate power cord. This equipment utilized a micro-gap power switch. Turn off the set by first pushing power switch. Next, remove the power cord from the AC outlet. To prevent fire or shock hazards, do not expose this unit to rain or moisture. This symbol warns the personnel that un-insulated voltage within the unit may have sufficient magnitude to cause electric shock. This symbol alerts the personnel that important literature concerning the operation and maintenance of this unit has been included. Therefore, it should be read carefully in order to avoid any problems.
PRODUCT SAFETY CAUTION
1. When parts replacement is required for servicing, always use the manufacturer's specified replacement. 2. When replacing the component, always be certain that all the components are put back in the place. 3. As for a connector, pick and extract housing with fingers properly since a disconnection and improper contacts may occur, when wires of the connector are led. 4. Use a proper screwdriver. If you use screwdriver that does not fit, you may damage the screws.
CONTENTS
Page No. USER'S MANUAL ------------------------------------------------------------------- 1-1 SERIAL NUMBER INFORMATION --------------------------------------------- 2-1 DISASSEMBLY ----------------------------------------------------------------------- 3-1 ADJUSTMENT PROCEDURES -------------------------------------------------- 4-1 INSPECTION --------------------------------------------------------------------------- 5-1 TROUBLE SHOOTING ------------------------------------------------------------- 6-1 CIRCUIT DESCRIPTION ----------------------------------------------------------- 7-1 REPLACEMENT PARTS LIST --------------------------------------------------- 8-1 BLOCK DIAGRAM ------------------------------------------------------------------- 9-1 SCHEMATIC DIAGRAMS -------------------------------------------------------- 10-1
User's Manual
MultiSync LCD1550ME
User's Manual
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TO PREVENT FIRE OR SHOCK HAZARDS, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. ALSO, DO NOT USE THIS UNIT'S POLARIZED PLUG WITH AN EXTENSION CORD RECEPTACLE OR OTHER OUTLETS UNLESS THE PRONGS CAN BE FULLY INSERTED. REFRAIN FROM OPENING THE CABINET AS THERE ARE HIGH VOLTAGE COMPONENTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION
RISK OF ELECTRIC SHOCK · DO NOT OPEN TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. This symbol warns user that uninsulated voltage within the unit may have sufficient magnitude to cause electric shock. Therefore, it is dangerous to make any kind of contact with any part inside this unit. This symbol alerts the user that important literature concerning the operation and maintenance of this unit has been included. Therefore, it should be read carefully in order to avoid any problems.
CAUTION
Caution:
When operating the MultiSync LCD1550ME (L15XA231-BN and L15XA231-BNBK) with a 220-240V AC power source in Europe, use the power cord provided with the monitor. In the UK, a BS approved power cord with a moulded plug has a Black (five Amps) fuse installed for use with this equipment. If a power cord is not supplied with this equipment please contact your supplier. When operating the MultiSync LCD1550ME with a 220-240V AC power source in Australia, use the power cord provided with the monitor. For all other cases, use a power cord that matches the AC voltage of the power outlet and has been approved by and complies with the safety standard of your particular country.
ENERGYSTAR is a U.S. trademark. As an ENERGYSTAR® Partner, NEC-Mitsubishi Electronics Display of America, Inc. has determined that this product meets the ENERGYSTAR guidelines for energy efficiency. The ENERGYSTAR emblem does not represent EPA endorsement of any product or service. IBM PC/XT/AT, PS/2, MCGA, VGA, 8514/A and XGA are registered trademarks of International Business Machines Corporation. Apple and Macintosh are registered trademarks of Apple Computer Inc. Microsoft and Windows are registered trademarks of the Microsoft Corporation. NEC is a registered trademark of NEC Corporation. All other trademarks or registered trademarks are property of their respective owners.
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WARNING
Declaration
Declaration of the Manufacturer
We hereby certify that the colour monitor
MultiSync LCD1550ME (L15XA231-BN) MultiSync LCD1550ME (L15XA231-BNBK) is in compliance with Council Directive 73/23/EEC: EN 60950 Council Directive 89/336/EEC: EN 55022 EN 61000-3-2 EN 61000-3-3 EN 55024
and marked with
NEC-Mitsubishi Electric Visual Systems, Corp. MS Shibaura Bldg., 13-23, Shibaura 4-chome, Minato-Ku, Tokyo 108-0023, Japan
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For the Customer to use in U.S.A. or Canada
Canadian Department of Communications Compliance Statement
DOC: This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations. Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouiller du Canada. C-UL: Bears the C-UL Mark and is in compliance with Canadian Safety Regulations according to CSA C22.2 #950. Ce produit porte la marque `C-UL' et se conforme aux règlements de sûrele Canadiens selon CAN/CSA C22.2 No. 950.
FCC Information
1. Use the attached specified cables with the MultiSync LCD1550ME colour monitor so as not to interfere with radio and television reception. (1) The power supply cord you use must have been approved by and comply with the safety standards of U.S.A., and meet the following condition. Power supply cord Non shield type, 3-conductor Length 2.0 m Plug shape
(2) Shielded video signal cable. Use of other cables and adapters may cause interference with radio and television reception.
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2. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy, and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: · Reorient or relocate the receiving antenna. · Increase the separation between the equipment and receiver. · Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. · Consult your dealer or an experienced radio/TV technician for help. If necessary, the user should contact the dealer or an experienced radio/television technician for additional suggestions. The user may find the following booklet, prepared by the Federal Communications Commission, helpful: "How to Identify and Resolve Radio-TV Interference Problems." This booklet is available from the U.S. Government Printing Office, Washington, D.C., 20402, Stock No. 004-000-00345-4.
Declaration of Conformity
This device complies with Part 15 of FCC Rules. Operation is subject to the following two conditions. (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. U.S. Responsible party: Address: Tel. No.: Type of Product: Equipment Classification: Models: NEC-Mitsubishi Electronics Display of America, Inc. 1250 N. Arlington Heights Road Itasca, Illinois 60143-1248 (630)467-3000 Computer Monitor Class B Peripheral MultiSync LCD1550ME
We hereby declare that the equipment specified above conforms to the technical standards as specified in the FCC Rules.
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Your new NEC MultiSync LCD monitor box* should contain the following: · MultiSync LCD1550ME monitor with tilt base · Power Cord · Video Signal Cable · Audio Cable · User's Manual · CD ROM (includes complete User's Manual in PDF format). To see the User's Manual, Acrobat Reader 4.0 must be installed on your PC.
1550ME
Power Cord
ME
User's Manual
Audio Cable
Video Signal Cable
CD ROM
* Remember to save your original box and packing material to transport or ship the monitor.
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Contents
Quick Start
To attach the MultiSync LCD monitor to your system, follow these instructions: 1. Turn off the power to your computer. 2. Remove connector cover and cable cover. Connect the audio cable to "AUDIO INPUT" on the back of the monitor and the other end to the "Audio out" terminal of the computer. Place the Audio cable under Clip B (Figure A.1). 3. For PC: Connect the 15-pin mini D-SUB of the appropriate signal cable to the connector for the display card in your system (Figure B.1). Tighten all screws. For Mac: Connect the MultiSync LCD1550ME Macintosh cable adapter to the computer (Figure C.1). Attach the 15-pin mini D-SUB end of the appropriate signal cable to the MultiSync LCD1550ME Macintosh cable adapter (Figure C.1). Tighten all screws. 4. Connect the 15-pin mini D-SUB of the video signal cable to the appropriate connector on the back of the monitor (Figure D.1). Place the Video Signal Cable under Clip B. 5. Headphones may be connected to the "Headphones" output on the front of the monitor's bezel marked " " (Figure E.1). While the headphones are connected, the sound from the speakers will be disabled. Headphones can be purchased from your local electronics store. 6. Connect one end of the power cord to the MultiSync LCD Series monitor and the other end to the power outlet. Place the video signal cable and AC power cord under the clips (Figure D.1). Replace connector cover and cable cover. NOTE: Adjust the position of the cable under the clips to avoid damage for cable or monitor. NOTE: Please refer to Caution section of this manual for proper selection of AC power cord. 7. The Vacation Switch on the left side of the monitor must be turned on (Figure F.1). Turn on the monitor with the Power Button and the computer.
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NOTE: The Vacation Switch is a true on/off switch. If this switch is on the OFF position, the monitor cannot be turned on using the front button. DO NOT switch on/off repeatedly. 8. No-touch auto adjust automatically adjusts the monitor to optimal settings upon initial setup for most timings. For further adjustments, use the following OSM controls: · Auto Adjust Contrast · Auto Adjust Refer to the Controls section of this User's Manual for a full description of these OSM controls. NOTE: If you have any problems, please refer to the Troubleshooting section of this User's Manual.
Figure A.1
Clip B
Figure B.1
Macintosh Cable Adapter (not included)
Macintosh G3 and G4 do not need a Macintosh cable adapter
Figure C.1
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Connector cover
Cable cover
Clip B
Figure D.1
Figure E.1
1550ME
Vacation Switch
Power Button
Figure F.1
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Grasp both sides of the monitor screen with your hands and adjust the tilt as desired (Figure TS.1).
Remove Monitor Stand for Mounting
To prepare the monitor for alternate mounting purposes: 1. Remove the connector cover and cable cover (Figure R.1). 2. Disconnect all cables. 3. Place monitor face down on a non-abrasive surface (Figure R.2). 4. Remove the 4 screws connecting the monitor to the stand and lift off the stand assembly (Figure R.2) the monitor is now ready for mounting in an alternate manner. 5. Connect the AC cord, signal cable and audio cable to the back of the monitor (Figure R.3). 6. Reverse this process to reattach stand. NOTE: Use only VESA-compatible alternative mounting method.
Figure TS.1
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Tilt
Figure R.1
Non-abrasive surface
Figure R.2
Figure R.3
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7. This LCD monitor is designed for use with a flexible arm. Please use the attached screws (4pcs) when mounting. To meet the safety requirements the monitor must be mounted to an arm which guaranties the necessary stability under consideration of the weight of the monitor. The LCD monitor shall only be used with an approved arm (e.g. GS mark).
Replace screws Thickness of bracket (arm) 2.0 ~ 3.2 mm
Tighten all screws
75 mm
75 mm 4 SCREWS (MAX depth: 8.6 mm) If use other screw, check depth of hole.
Weight of LCD assembly: 3.1kg (MAX)
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Controls
OSM (On-Screen-Manager) Controls
The OSM controls on the front of the monitor function as follows: To access OSM press any of the control buttons ( , , -, +, NEXT).
Control
EXIT CONTROL /
Menu
Exits the OSM controls. Exits to the OSM main menu. Moves the highlighted area left/right to select control menus. Moves the highlighted area up/down to select one of the controls. Moves the bar left/right to increase or decrease the adjustment. Activates Auto Adjust function. Enter the sub menu. Moves the highlighted area of main menu right to select one of the controls. Resets the highlighted control to the factory setting. When no OSM menu is shown, the speaker sound will be muted.
ADJUST -/+
NEXT RESET/MUTE
NOTE: When RESET is pressed in the main and sub-menu, a warning window will appear allowing you to cancel the RESET function by pressing the EXIT button.
Sound
VOLUME
Control the sound volume of speakers and headphones.
Brightness/Contrast Controls
BRIGHTNESS
Adjusts the overall image and background screen brightness.
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Adjusts the image brightness in relation to the background.
AUTO ADJUST
Adjusts the image displayed for non-standard video inputs.
Auto Adjust
Automatically adjusts the Image Position, the H. Size and Fine setting.
Position Controls
LEFT/RIGHT
Controls Horizontal Image Position within the display area of the LCD.
DOWN/UP
Controls Vertical Image Position within the display area of the LCD.
H. SIZE
Adjusts the horizontal size by increasing or decreasing this setting.
FINE
Improves focus, clarity and image stability by increasing or decreasing this setting.
Colour Control Systems
Five colour presets select the desired colour setting. Each colour setting is adjusted at the factory.
R,G,B
Increases or decreases Red, Green or Blue colour depending upon which is selected. The change in colour will appear on screen and the direction (increase or decrease) will be shown by the bars.
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CONTRAST
Tools
OSM POSITION
You can choose where you would like the OSM control image to appear on your screen. Selecting OSM Location allows you to manually adjust the position of the OSM control menu left, right, down or up.
OSM TURN OFF
The OSM control menu will stay on as long as it is use. In the OSM Turn Off submenu, you can select how long the monitor waits after the last touch of a button to shut off the OSM control menu. The preset choices are 10, 20, 30, 45, 60 and 120 seconds.
OSM LOCK OUT
This control completely locks out access to all OSM control functions. When attempting to activate OSM controls while in the Lock Out mode, a screen will appear indicating the OSM controls are locked out. To activate the OSM Lock Out function, press , then and hold down simultaneously. To de-activate the OSM Lock Out, press , then and hold down simultaneously.
RESOLUTION NOTIFIER
This optimal resolution is 1024 x 768. If ON is selected, a message will appear on the screen after 30 seconds, notifying you that the resolution is not at 1024 x 768.
FACTORY PRESET
Selecting Factory Preset allows you to reset all OSM control settings back to the factory settings. The RESET button will need to be held down for several seconds to take effect. Individual settings can be reset by highlighting the control to be reset and pressing the RESET button.
Information
DISPLAY MODE
Indicates the current display resolution and frequency setting of the monitor.
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Indicates the model and serial numbers of your monitor.
OSM Warning
OSM Warning menus disappear with Exit button. NO SIGNAL: This function gives a warning when there is no signal present. After power is turned on or when there is a change of input signal or video is inactive, the No Signal window will appear. RESOLUTION NOTIFIER: This function gives a warning of use with optimized resolution. After power is turned on or when there is a change of input signal or the video signal doesn't have proper resolution, the Resolution Notifier window will open. This function can be disabled in the TOOL menu. OUT OF RANGE: This function gives a recommendation of the optimized resolution and refresh rate. After the power is turned on or there is a change of input signal or the video signal doesn't have proper timing, the Out Of Range menu will appear. CHECK CABLE: This function will advise you to check all Video Inputs on the monitor and computer to make sure they are properly connected.
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MONITOR INFO.
Recommended Use
Safety Precautions and Maintenance FOR OPTIMUM PERFORMANCE, PLEASE NOTE THE FOLLOWING WHEN SETTING UP AND USING THE MULTISYNC LCD COLOUR MONITOR: · DO NOT OPEN THE MONITOR. There are no user serviceable parts inside and opening or removing covers may expose you to dangerous shock hazards or other risks. Refer all servicing to qualified service personnel. Do not spill any liquids into the cabinet or use your monitor near water. Do not insert objects of any kind into the cabinet slots, as they may touch dangerous voltage points, which can be harmful or fatal or may cause electric shock, fire or equipment failure. Do not place any heavy objects on the power cord. Damage to the cord may cause shock or fire. Do not place this product on a sloping or unstable cart, stand or table, as the monitor may fall, causing serious damage to the monitor. Do not place any objects onto the monitor and do not use the monitor outdoors. The inside of the flourescent tube located within the LCD monitor contains mercury. Please follow the bylaws or rules of your municipality to dispose of the tube properly.
· ·
· · · ·
Immediately unplug your monitor from the wall outlet and refer servicing to qualified service personnel under the following conditions: · When the power supply cord or plug is damaged. · If liquid has been spilled, or objects have fallen into the monitor. · If the monitor has been exposed to rain or water. · If the monitor has been dropped or the cabinet damaged. · If the monitor does not operate normally by following operating instructions. · Do not bend power cord. · Do not use monitor in high temperatured, humid, dusty, or oily areas. · Do not cover vent on monitor. · If monitor is broken, do not come in contact with the liquid crystal. · If glass is broken. Handle with care.
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CAUTION
·
·
CORRECT PLACEMENT AND ADJUSTMENT OF THE MONITOR CAN REDUCE EYE, SHOULDER AND NECK FATIGUE. CHECK THE FOLLOWING WHEN YOU POSITION THE MONITOR: · · For optimum performance, allow 20 minutes for warm-up. Adjust the monitor height so that the top of the screen is at or slightly below eye level. Your eyes should look slightly downward when viewing the middle of the screen. Position your monitor no closer than 40 cm and no further away than 70 cm from your eyes. The optimal distance is 53 cm. Rest your eyes periodically by focusing on an object at least 6 m away. Blink often. Position the monitor at a 90° angle to windows and other light sources to minimize glare and reflections. Adjust the monitor tilt so that ceiling lights do not reflect on your screen. If reflected light makes it hard for you to see your screen, use an antiglare filter. Clean the LCD monitor surface with a lint-free, non-abrasive cloth. Avoid using any cleaning solution or glass cleaner! Adjust the monitor's brightness and contrast controls to enhance readability. Use a document holder placed close to the screen. Position whatever you are looking at most of the time (the screen or reference material) directly in front of you to minimize turning your head while you are typing.
·
· ·
· · · · ·
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·
Allow adequate ventilation around the monitor so that heat can properly dissipate. Do not block ventilated openings or place the monitor near a radiator or other heat sources. Do not put anything on top of monitor. The power cable connector is the primary means of detaching the system from the power supply. The monitor should be installed close to a power outlet which is easily accessible. Handle with care when transporting. Save packaging for transporting.
· ·
Avoid displaying fixed patterns on the monitor for long periods of time to avoid image persistence (after-image effects). Get regular eye checkups.
Ergonomics To realize the maximum ergonomics benefits, we recommend the following: · Use the preset Size and Position controls with standard signals. · Use the preset Colour Setting. · Use non-interlaced signals with a vertical refresh rate between 60-75 Hz. · Do not use primary colour blue on a dark background, as it is difficult to see and may produce eye fatigue to insufficient contrast.
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Monitor Specifications
MultiSync LCD1550ME Monitor Notes
LCD Module
Diagonal: 38 cm/15 inches Viewable Image Size: 38 cm/15 inches Native Resolution (Pixel Count): 1024 x 768
Active matrix; thin film transistor (TFT) liquid crystal display (LCD); 0.30 mm dot pitch; 250cd/m2 white luminence, typical; 400:1 contrast ratio, typical.
Input Signal
Video: ANALOG 0.7 Vp-p/75 Ohms Sync: Separate sync.TTL Level Horizontal sync. Positive/Negative Vertical sync. Positive/Negative Analog input: 16,777,216 Horizontal: 31.5 kHz to 60.0 kHz Vertical: 56.2 Hz to 75.1 Hz Left/Right: ± 60° Up/Down: + 45°/- 55° Some systems may not 720 x 400*1 :VGA text 640 x 480*1 at 60 Hz to 75 Hz support all modes listed. 800 x 600*1 at 56 Hz to 75 Hz 832 x 624*1 at 75 Hz 1024 x 768*2 at 60 Hz to 75 Hz Horizontal: 304 mm/12 inches Vertical: 228 mm/9.0 inches Dependent upon signal timing. Depends on display card used. Automatically Automatically
Display Colours
Synchronization Range Viewing Angle Resolutions Supported
Active Display Area Power Supply Current Rating Dimensions Weight
AC 100-120 V/220-240 V 50/60 Hz 0.7 A @ 100-120 V, 0.35 A @ 220-240 V 345.2 mm (W) x 362.6 mm (H) x 162.0 mm (D) 13.6 inches (W) x 14.3 inches (H) x 6.4 inches (D) 3.9 kg (8.6 lbs) 5 °C to 35 °C 30% to 80% 0 to 3,000 m -10 °C to +60 °C 10% to 85% 0 to 9,500 m 1.0W + 1.0W
Environmental Considerations Operating Temperature: Humidity: Altitude: Storage Temperature: Humidity: Altitude: Speakers Practical Audio Output
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Specifications
*1 Interpolated Resolutions: When resolutions are shown that are lower than the pixel count of the
LCD module, text may appear different. This is normal and necessary for all current flat panel technologies when displaying non-native resolutions full screen. In flat panel technologies, each dot on the screen is actually one pixel, so to expand resolutions to full screen, an interpolation of the resolution must be done. *2 NEC-Mitsubishi Electronics Display cites recommended resolutions at 75 Hz for optimal display performance.
NOTE: Technical specifications are subject to change without notice.
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Colour Control System: Allows you to adjust the colours on your screen and customize the colour accuracy of your monitor to a variety of standards. Reduced Footprint: Provides the ideal solution for environments requiring superior image quality but with size and weight limitations. The monitor's small footprint and low weight allow it to be moved or transported easily from one location to another. OSM (On-Screen Manager) Controls: Allow you to quickly and easily adjust all elements of your screen image via simple to use on-screen menus. No-touch Auto Adjust: No-touch auto adjust automatically adjusts the monitor to optimal settings upon initial setup. ErgoDesign Features: Enhance human ergonomics to improve the working environment, protect the health of the user and save money. Examples include OSM controls for quick and easy image adjustments, tilt base for preferred angle of vision, small footprint and compliance with MPRII and TCO guidelines for lower emissions. Plug and Play: The Microsoft solution with the Windows 95/98/ME/ 2000/XP operating system facilitates setup and installation by allowing the monitor to send its capabilities (such as screen size and resolutions supported) directly to your computer, automatically optimizing display performance. IPM (Intelligent Power Manager) System: Provides innovative power-saving methods that allow the monitor to shift to a lower power consumption level when on but not in use, saving two-thirds of your monitor energy costs, reducing emissions and lowering the air conditioning costs of the workplace. Multiple Frequency Technology: Automatically adjusts monitor to the display card's scanning frequency, thus displaying the resolution required. FullScan Capability: Allows you to use the entire screen area in most resolutions, significantly expanding image size.
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Features
VESA Standard Mounting Interface: Allows users to connect their MultiSync monitor to any VESA standard (75 mm pitch) third party mounting arm or bracket. Allows for the monitor to be mounted on a wall or an arm using any third party compliant device.
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No picture
· The signal cable should be completely connected to the display card/ computer. · The display card should be completely seated in its slot. · Check the Vacation Switch should be in the ON Position. Front power Switch and computer power switch should be in the ON position. · Check to make sure that a supported mode has been selected on the display card or system being used. (Please consult display card or system manual to change graphics mode.) · Check the monitor and your display card with respect to compatibility and recommended settings. · Check the signal cable connector for bent or pushed-in pins.
Power Button does not respond
· Unplug the power cord of the monitor from the AC outlet to turn off and reset the monitor. · Check the Vacation Switch on the left hand side of the monitor.
Image persistence
· Image persistence is when a "ghost" of an image remains on the screen even after the monitor has been turned off. Unlike CRT monitors, LCD monitors' image persistence is not permanent. To alleviate image persistence, turn the monitor off for as long as an image was displayed. If an image was on the monitor for one hour and a "ghost" of that image remains, the monitor should be turned off for one hour to erase the image. NOTE: As with all personal display devices, NEC-Mitsubishi Electronic Displays recommends using a screen saver at regular intervals whenever the screen is idle.
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Troubleshooting
Image is unstable, unfocused or swimming is apparent
· Signal cable should be completely attached to the computer. · Use the OSM Image Adjust controls to focus and adjust display by increasing or decreasing the fine total. When the display mode is changed, the OSM Image Adjust settings may need to be readjusted. · Check the monitor and your display card with respect to compatibility and recommended signal timings. · If your text is garbled, change the video mode to non-interlace and use 60 Hz refresh rate.
Message "OUT OF RANGE" is displayed (screen is either blank or shows rough images only)
· OSM warning "OUT OF RANGE" is displayed on a blank screen: Signal frequency is out of range. Choose one of the supported modes.
LED on monitor is not lit (no green or amber colour can be seen)
· Power Switch should be in the ON position and power cord should be connected. · Make certain the computer is not in a power-saving mode (touch the keyboard or mouse).
Display image is not sized properly
· Use the OSM Image Adjust controls to increase or decrease the H.Size. · Check to make sure that a supported mode has been selected on the display card or system being used. (Please consult display card or system manual to change graphics mode.)
Selected resolution is not displayed properly
· Use OSM Display Mode to enter Information menu and confirm that the appropriate resolution has been selected. If not, select corresponding option.
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· Check to see if speaker cable is properly connected. · Check to see if mute is activated. · Check to see if volume in OSM is set at minimum.
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No Sound
TCO'99
This is a translation of the original English TCO'99 document. MultiSync LCD1550ME White Model (L15XA231-BN) Congratulations! You have just purchased a TCO'99 approved and labeled product! Your choice has provided you with a product developed for professional use. Your purchase has also contributed to reducing the burden on the environment and also to the further development of environmentally adapted electronics products.
Why do we have environmentally labelled computers? In many countries, environmental labelling has become an established method for encouraging the adaptation of goods and services to the environment. The main problem, as far as computers and other electronics equipment are concerned, is that environmentally harmful substances are used both in the products and during the manufacturing. Since it has not been possible for the majority of electronics equipment to be recycled in a satisfactory way, most of these potentially damaging substances sooner or later enter Nature. There are also other characteristics of a computer, such as energy consumption levels, that are important from the viewpoints of both the work (Internal) and natural (external) environments. Since all methods of conventional electricity generation have a negative effect on the environment (acidic and climate-influencing emissions, radioactive waste, etc.), it is vital to conserve energy. Electronics equipment in offices consume an enormous amount of energy since they are often left running continuously. What does labelling involve? This product meets the requirements for the TCO'99 scheme which provides for international and environmental labelling of personal computers. The labelling scheme was developed as a joint effort by the TCO (The Swedish Confederation of Professional Employees), Svenska Naturskyddsforeningen (The Swedish Society for Nature Conservation) and Statens Energimyndighet (The Swedish National Energy Administration).
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The requirements cover a wide range of issues: environment, ergonomics, usability, emission of electrical and magnetic fields, energy consumption and electrical and fire safety. The environmental demands concern restrictions on the presence and use of heavy metals, brominated and chlorinated flame retardants, CFCs (freons) and chlorinated solvents, among other things. The product must be prepared for recycling and the manufacturer is obliged to have an environmental plan which must be adhered to in each country where the company implements its operational policy. The energy requirements include a demand that the computer and/or display, after a certain period of inactivity, shall reduce its power consumption to a lower level in one or more stages. The length of time to reactivate the computer shall be reasonable for the user. Labelled products must meet strict environmental demands, for example, in respect of the reduction of electric and magnetic fields, physical and visual ergonomics and good usability. Environmental Requirements Flame retardants Flame retardants are present in printed circuit boards, cables, wires, casings and housings. In turn, they delay the spread of fire. Up to thirty percent of the plastic in a computer casing can consist of flame retardant substances. Most flame retardants contain bromine or chloride and these are related to another group of environmental toxins, PCBs, which are suspected to give rise to severe health effects, including reproductive damage in fisheating birds and mammals, due to the bioaccumulative* processes. Flame retardants have been found in human blood and researchers fear that disturbances in foetus development may occur. TCO'99 demand requires that plastic components weighing more than 25 grams must not contain flame retardants with organically bound chlorine and bromine. Flame retardants are allowed in the printed circuit boards since no substitutes are available. Lead** Lead can be found in picture tubes, display screens, solders and capacitors. Lead damages the nervous system and in higher doses, causes lead poisoning. TCO'99 requirement permits the inclusion of lead since no replacement has yet been developed.
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Cadmium** Cadmium is present in rechargeable batteries and in the colourgenerating layers of certain computer displays. Cadmium damages the nervous system and is toxic in high doses. TCO'99 requirement states that batteries, the colourgenerating layers of display screens and the electrical or electronics components must not contain any cadmium. Mercury** Mercury is sometimes found in batteries, relays and switches, Mercury damages the nervous system and is toxic in high doses. TCO'99 requirement states that batteries may not contain any Mercury. It also demands that no mercury is present in any of the electrical or electronics components associated with the display unit. CFCs (freons) CFCs (freons) are sometimes used for washing printed circuit boards. CFCs break down ozone and thereby damage the ozone layer in the stratosphere, causing increased reception on Earth of ultraviolet light with consequent increased risks of skin cancer (malignant melanoma). The relevant TCO'99 requirement; Neither CFCs nor HCFCs may be used during the manufacturing and assembly of the product or its packaging. * Bio-accumulative is defined as substances which accumulate within living organisms. ** Lead, Cadmium and Mercury are heavy metals which are Bioaccumulative. To obtain complete information on the environmental criteria document, order from: TCO Development Unit SE-114 94 Stockholm SWEDEN FAX Number: +46 8 782 92 07 E-mail (Internet): [email protected] You may also obtain current information on TCO'99 approved and labelled products by visiting their website at: http://www.tco-info.com/
English-28
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This is a translation of the original English TCO'95 document. MultiSync LCD1550ME Black Model (L15XA231-BNBK) Congratulations! You have just purchased a TCO'95 approved and labeled product! Your choice has provided you with a product developed for professional use. Your purchase has also contributed to reducing the burden on the environment and also, to the further development of environmentally adapted electronics products.
Why do we have environmentally labelled computers? In many countries, environmental labelling has become an established method for encouraging the adaptation of goods and services to the environment. The main problem, as far as computers and other electronics equipment are concerned, is that environmentally harmful substances are used both in the products and during the manufacturing. Since it has not been possible for the majority of electronics equipment to be recycled in a satisfactory way, most of these potentially damaging substances sooner or later enter Nature. There are also other characteristics of a computer, such as energy consumption levels, that are important from the viewpoints of both the work (Internal) and natural (external) environments. Since all methods of conventional electricity generation have a negative effect on the environment (acidic and climate-influencing emissions, radioactive waste, etc.), it is vital to conserve energy. Electronics equipment in offices consume an enormous amount of energy since they are often left running continuously. What does labelling involve? This product meets the requirements for the TCO'95 scheme which provides for international and environmental labelling of personal computers. The labelling scheme was developed as a joint effort by the TCO (The Swedish Confederation of Professional Employees), Naturskyddsforeningen (The Swedish Society for Nature Conservation) and NUTEK (The National Board for Industrial and Technical Development in Sweden). The requirements cover a wide range of issues: environment, ergonomics, usability, emission of electrical and magnetic fields, energy consumption and electrical and fire safety. English-29
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English
TCO'95
The environmental demands concern restrictions on the presence and use of heavy metals, brominated and chlorinated flame retardants, CFCs (freons) and chlorinated solvents, among other things. The product must be prepared for recycling and the manufacturer is obliged to have an environmental plan which must be adhered to in each country where the company implements its operational policy. The energy requirements include a demand that the computer and/or display, after a certain period of inactivity, shall reduce its power consumption to a lower level in one or more stages. The length of time to reactivate the computer shall be reasonable for the user. Labelled products must meet strict environmental demands, for example, in respect of the reduction of electric and magnetic fields, physical and visual ergonomics and good usability. TCO'95 is a co-operative project between TCO (The Swedish Confederation of Professional Employees), Naturskyddsforeningen (The Swedish Society for Nature Conservation) and NUTEK (The National Board for Industrial and Technical Development in Sweden). Environmental Requirements Brominated flame retardants Brominated flame retardants are present in printed circuit boards, cables, wires, casings and housings. In turn, they delay the spread of fire. Up to thirty percent of the plastic in a computer casing can consist of flame retardant substances. These are related to another group of environmental toxins, PCBs, which are suspected to give rise to similar harm, including reproductive damage in fisheating birds and mammals, due to the bio-accumulative* processes. Flame retardants have been found in human blood and researchers fear that disturbances in foetus development may occur. TCO'95 demand requires that plastic components weighing more than 25 grams must not contain organically bound chlorine and bromine. Lead** Lead can be found in picture tubes, display screens, solders and capacitors. Lead damages the nervous system and in higher doses, causes lead poisoning. TCO'95 requirement permits the inclusion of lead since no replacement has yet been developed.
English-30
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Cadmium is present in rechargeable batteries and in the colourgenerating layers of certain computer displays. Cadmium damages the nervous system and is toxic in high doses. TCO'95 requirement states that batteries may not contain more than 25 ppm (parts per million) of cadmium. The colourgenerating layers of display screens must not contain any cadmium. Mercury** Mercury is sometimes found in batteries, relays, switches, and back-light systems, Mercury damages the nervous system and is toxic in high doses. TCO'95 requirement states that batteries may not contain more than 25 ppm (parts per million) of mercury. It also demands that no mercury is present in any of the electrical or electronics components concerned with the display unit, except the back-light system. CFCs (freons) CFCs (freons) are sometimes used for washing printed circuit boards and in the manufacturing of expanded foam for packaging. CFCs break down ozone and thereby damage the ozone layer in the stratosphere, causing increased reception on Earth of ultraviolet light with consequent increased risks of skin cancer (malignant melanoma). The relevant TCO'95 requirement; Neither CFCs nor HCFCs may be used during the manufacturing of the product or its packaging. * Bio-accumulative is defined as substances which accumulate within living organisms. ** Lead, Cadmium and Mercury are heavy metals which are Bioaccumulative. To obtain complete information on the environmental criteria document, order from: TCO Development Unit SE-114 94 Stockholm SWEDEN FAX Number: +46 8 782 92 07 E-mail (Internet): [email protected] You may also obtain current information on TCO'95 approved and labelled products by visiting their website at: http://www.tco-info.com/ English-31
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English
Cadmium**
Serial Number Information
Refer to the serial number information shown below. EX.) SERIAL NUMBER LABEL
Model Name : LCD1550ME LCD1550ME-BK SERIAL NO. :
g g g g g g g g g
Manufactured Year : ( Last digit ) Manufactured Month : January to September October November December 1 to 9 X Y Z Serial Number(5-digit) (sequential number at production month, 00001-99999)
Factory Code: LITE-ON Taiwan factory ...... "U" LITE-ON China factory ...... "G" Control Code: A: A ver. (for U.S.A.) B: B ver. (for Europe, Asia and Pacific) C: C ver. (for China)
2-1
DISASSEMBLY
g Before you disassemble the set, turn off power and pull out the power plug. g Use the proper screwdriver. If oversize or undersize screwdriver is used, screws may be damaged. g Assembly is the opposite process of disassembly. SYMBOL 1 1 2 2 3 4 CODE 79PL1836 79PL1844 79PL1825 79PL1833 ----DESCRIPTION COVER(CONNECTOR) COVER-CONNECTOR-NMV(NEC)COVER CABLE COVER CABLE(LCD1550MBK B) SCREW-M4*12 SCREW-T3*12 CABINET COLOR White Black White Black
1
2
3
4
3-1
SYMBOL 5 5
CODE 79PL1897 79PL2043
DESCRIPTION REAR COVER ASS'Y-NMV-NEC REAR COVER ASS'Y-NEC-NEC-
CABINET COLOR White Black
5
SYMBOL 6 7
CODE --79PL1915
DESCRIPTION BRACKET VESA ASS'Y RUBBER CUSHION(REAR COVER)
7
6
3-2
SYMBOL 8 9
CODE --79PL1910
DESCRIPTION SCREW-M3*6 SHIELD-ASS'Y-NEC-FA150ATU
9 8
SYMBOL 11 12 13
CODE 79PL1912 79PL1913 79PL1911
DESCRIPTION INSULATOR-NEC-FA150ATUA-B INSULATOR-NEC-FA150ATUA-P INSULATOR-NEC-FA150ATUA-P 12
13
11
3-3
SYMBOL 14 15 16 8 17 18 19
CODE 79PL2044 79PL2047 79PL1982 ---------
DESCRIPTION INTERFACE BD POWER BD INVERTER-DC-AC-AMBIT:T15I SCREW-M3*6 SCREW-M4*8 SCREW-M3*6(Flat) SPECIAL(HEX)
P307 14
P306
P301
P304
P003
8 19
CN3
15
P804
8 CN1
16
17 CN2 18
3-4
SYMBOL 20 21 22 23 24 25
CODE 79PL1819 79PL1901 --79PL1464 --79PL1462
DESCRIPTION FUNCTION KEY BD-NEC-FA150 HEAD PHONE BD-NEC-FA15AA SCREW-M3*8 SPEAKER 4P N13AA12PCH22 J SCREW-M2.6*10 SW POWER HF606A1GGATA HUA
25 21
20
23
22 24
SYMBOL 26 27 27
CODE --79PL2041 79PL2042
DESCRIPTION SCREW-M3*12 FRONT COVER ASS'Y-NMV-NEC FRONT COVER ASS'Y-NEC-NEC
CABINET COLOR White Black
26
27
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SYMBOL 28 29 30 31 32
CODE ----79PL2039 79PL2036 79PL2037
DESCRIPTION SCREW-M3*5 BRACKET CHASSIS BASE ASS'Y LCD-15-CLAA150XG01-CPT" HARNESS-FFC-45P(0.5)-95/1 HARNESS-FFC-30P(0.5)-115/
28
28
29
31
30
32
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SYMBOL 33 34 35 35 36
CODE 79PL1905 79PL1906 79PL1835 79PL1845 ---
DESCRIPTION HINGE-L-NEC-NEC-FA150ATUA HINGE-R-NEC-NEC-FA150ATUA STAND FRONT COVER-STAND FRONT-NMV(NEC SCREW-M4*8(SPECAL)
CABINET COLOR
White Black
36 33
34
35
SYMBOL 37 37 38 39
CODE 79PL1898 79PL2040 79PL1907 ---
DESCRIPTION STAND-BASE-NMV-NEC-FA15AA BASE ASS'Y-NEC-NEC-FA15AA BRACKET-HINGE-NEC-FA150AT SCREW-M4*16(DOUBLE WASHER)
CABINET COLOR White Black
38
39 37
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SYMBOL 40 41 42
CODE 79PL1875 79PL1869 ---
DESCRIPTION BRACKET-STAND PLATE-NECFOOT RUBBER SCREW-M3*10
41
42
40
3-8
ADJUSTMENT PROCEDURES
TABLE OF CONTENS
Page 1. 2. 2.1. 2.2. 2.2.1. 2.2.2. 2.2.3. 3. 3.1. 3.2. 3.3. 3.4. 3.5. 3.6. 3.6.1. 3.6.2. 3.6.3. Application ------------------------------------------------------------------------------------------------------------- 4-2 Basic operation-------------------------------------------------------------------------------------------------------- 4-2 General conditions --------------------------------------------------------------------------------------------------- 4-2 Basic function --------------------------------------------------------------------------------------------------------- 4-2 Key layout ----------------------------------------------------------------------------------------------------------- 4-2 Aging ----------------------------------------------------------------------------------------------------------------- 4-2 Service mode ------------------------------------------------------------------------------------------------------- 4-3 Set adjustments------------------------------------------------------------------------------------------------------- 4-4 Measuring instruments to be used ------------------------------------------------------------------------------- 4-4 Power source voltage ----------------------------------------------------------------------------------------------- 4-4 Electrification ---------------------------------------------------------------------------------------------------------- 4-4 Input signals ----------------------------------------------------------------------------------------------------------- 4-4 POWER ON and signal input -------------------------------------------------------------------------------------- 4-4 Manual adjustments ------------------------------------------------------------------------------------------------- 4-5 Input video signal -------------------------------------------------------------------------------------------------- 4-5 VIDEO gain adjustments ---------------------------------------------------------------------------------------- 4-6 Factory setting--------------------------------------------------------------------------------------------------------4-7
4-1
1. Application
This specification shall be applied to the adjustment of the LCD1550ME set.
2. Basic operation
2.1. General conditions
Unless otherwise specified, adjustments shall be carried out under the following conditions: 1) Power source voltage: AC 100 - 120V/ 220 - 240V ± 5%, 50/60Hz 2) Equipment to be used: Equipment that can generate an output of the adjusted VG-819 unit or equivalent 3) Connections: Connections are made to the D-Sub connector of the unit under inspection by means of the connector that can carry each output of the VG-819.
2.2. Basic function
2.2.1. Key layout EXIT wCONTROL8 -ADJUST+ NEXT RESET/MUTE
Exit Control Adjust Next Reset 2.2.2. Aging
: Menu Close, Sub menu exit : Menu Open, Cursor Move, Item Select : Menu Open, Adjust select item, Enter Sub menu : Menu Open, Tag Select, Function execute : Open reset menu, Sound Mute
Prior to the adjustment of this model, 30 minutes of aging shall be carried out. The method of aging mode setting shall conform to the following: 1) Turn the POWER switch on while there are no inputs of the VIDEO and SYNC signals. 2) Press the (4) RIGHT or(3) LEFT or (+) PLUS or (-) MINUS key to display the information OSM. 3) Then, Press the (+) PLUS and (-) MINUS keys simultaneously with the RESET key kept pressed. Then the mode moves to the aging mode.
Push (+) PLUS and (-) MINUS and RESET
4-2
4) If there is no particular operation, an all white screen (255/255 gradation) is displayed. 5) Operate the(4) RIGHT and (3)LEFT keys in this state. Then, operation for the gradation becomes possible. It is also possible to change the pattern by operating the (4)RIGHT and (3)LEFT keys. 6) When withdrawing from the aging mode, press the EXIT key. During operation in the aging mode, the power save mode is not assumed. The LED maintains the green display. 2.2.3. Service mode
At the time of adjustment of this model, a suggestion may be given to enter the service (factory) mode. This will be explained below. (1) Service mode: 1) In the "display mode" menu, press the (+) and (-) LEFT keys at the same time while pressing the RESET key. 2) When the NEXT key is pressed under the condition that the WARNING screen is displayed, the mode moves to the SERVICE mode. At that time, the LED is kept lit in green. The OSM AUTO-OFF function is disabled. 3) When withdrawing from the SERVICE mode, press the EXIT key in the highest hierarchy of the SERVICE menu, or make a signal changeover, or take an action of POWER OFF. Push (+) PLUS and (-) MINUS and RESET
(2) Service menu: This is an OSM menu to be displayed when the mode is changed over to the SERVICE mode. The conditions differ in each mode, in regard to entering and withdrawal, and whether the data are recorded in the EEPROM. Items of the service menu are used in common.
4-3
3. Set adjustments
3.1. Measuring instruments to be used
The measuring instruments considered necessary for the adjustment of the LCD1550ME set are specified below. 1) Equipment that can generate an output of the adjusted VG-819 unit or equivalent
3.2. Power source voltage
100 - 120V/ 220 - 240V ± 5%, 50/60Hz
3.3. Electrification
1) Make connections according to the mode intended for VG-819 cable setting. 2) Turn on the POWER switch of the VG-819 unit. 3) Connect an AC power cable to the unit under inspection. 4) Confirm that the vacation switch (seesaw switch) at the left side of the unit being inspected has been moved to the "I" side, and turn the POWER switch ON at the right side of the front. 5) The LED of the unit under inspection is lit in amber. (In the middle of signal discrimination) 6) After the completion of signal discrimination, the LED is lit in green. Note 1: When the POWER source switch is turned on for the first time, the initialization of EEPROM is effected regardless of the ON/OFF position of the POWER switch. In this period (about 1 minutes), the POWER switch must not be moved to the ON or OFF position. Upon the completion of the initialization, a normal screen is displayed. (If no signal input is entered, the information OSM is displayed.) If the screen is not displayed for more than 5 minutes after the electrification, however, this seems to have resulted from failure in the initialization of EEPROM. Such a condition is regarded as NG. Note 2: Connections for the connectors should be carried out always under the condition that the AC POWER cord plug has been pulled out.
3.4. Input signals
Refer to Paragraph 3.6.1 for each adjustment item.
3.5. POWER ON and signal input
1) Turn on the vacation switch located on the side of the main unit (the power supply for the signal generator turned off) and turn on the power circuit by pressing the POWER key on the front panel. Confirm in this case that the LED is lit in amber. When the power supply is turned on for the first time after the completion of PWB assembly, do not turn off the power supply for at least 10 seconds because initialization is required to be performed. 2) Turn on the power supply of the signal generator and enter an input of Signal 1. Confirm that the LED is turned from amber to green. * If this LED is not lit in green at that time, it is regarded as a defective LED. 3) Prior to adjustments, execute the factory reset procedure without fail. The method of this action is described below. a) Display the SERVICE menu and adjust the cursor to the item of [FACTORY RESET]. b) Enter a signal 2 input of VGA 640x480(Solid all white pattern). c) Press the (+) PLUS or (-) MINUS keys to execute the factory reset procedure.
4-4
3.6. Manual adjustments
3.6.1. Input video signal VG-819 setting values MODE DOT CLOCK [MHz] TOTAL [DOT] DISP [DOT] SYNC PULSE [DOT] BACK [DOT] HDstrat [DOT] Hdwidth [DOT] V INTERLACE TOTAL [H] DISP [H] [H] SYNC PULSE [H] BACK PORCH [H] EQPfp [H] EQPbp SERRATION [H] EDP [H] VDs [H] VBf [H] OUTPUT OUTPUT MODE NRZ/RZ CV HS VS CS HD VD RGB HT C VIDEO Set-up Sync Display setting H Signal 1 VESA 1024x768@75Hz 78.75 1312 1024 96 176 0 0 NON 800 768 3 28 0 0 OFF OFF 0 0 ANALOG NRZ POS POS NEG NEG NEG POS POS POS 0.70 OFF 0.3 Gray scale + External frame (16 gradations) 0 ~ 100% Signal 2 VGA 640x480 25.18 800 640 96 48 0 0 NON 525 480 2 33 0 0 OFF OFF 0 0 ANALOG NRZ NEG NEG NEG NEG NEG POS POS POS 0.70 OFF 0.3 Solid all white
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3.6.2.
VIDEO gain adjustments
Use the signal source for which the analog output (R/G/B) has been adjusted to 0.7V. 1) Enter a signal 1 input of SXGA 1024x768(75Hz). 2) Turn off the display pattern completely and obtain an all black screen. 3) Assume the FACTORY mode in the procedures of Paragraph 2.2.3 and display the SERVICE menu. 4) Press the NEXT key once and advance to the tag [2].
5) Adjust the display pattern to Gray Scale (0 to 100%: in 16 gradations) + External Frame. 6) Use the (4) RIGHT or (3) LEFT keys and adjust the cursor to [AUTO OFFSET]. Make adjustments by pressing the (+) PLUS or (-) MINUS keys. 7) When adjustments are over and the original screen has been recovered, confirm that all the 16 gradations of black to white are displayed. 8) Use the (4) RIGHT or (3) LEFT keys and adjust the cursor to [AUTO CONT MAX]. 9) Press the EXIT key and withdraw from the SERVICE mode.
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3.6.3.
Factory setting
1) Enter a signal input. (no prescribe) 2) Assume the FACTORY mode in the procedures of Paragraph 2.2.3 and display the SERVICE menu. 3) Press the NEXT key three times and advance to the tag |4|.
4) Use the (4) RIGHT or (3) LEFT keys and adjust the cursor to [OSD DESIGN],[OSM SELECT] and [URL]. Set by pressing the (+) PLUS or (-) MINUS keys. OSD DESIGN OSM SELECT URL 0 0 1
5) Press the EXIT key and withdraw from the SERVICE mode.
4-7
INSPECTION
TABLE OF CONTENS
Page 1. Set Inspection----------------------------------------------------------------------------------------------------- 5-2 1.1.1. Application ----------------------------------------------------------------------------------------------------------- 5-2 1.2. Inspection conditions --------------------------------------------------------------------------------------------- 5-2 1.2.1. Power source voltage --------------------------------------------------------------------------------------------- 5-2 1.2.2. Equipment to be used--------------------------------------------------------------------------------------------- 5-2 1.2.3. Inspection cables/connections ---------------------------------------------------------------------------------- 5-2 1.2.4. Brightness setting -------------------------------------------------------------------------------------------------- 5-2 1.2.5. Inspection mode ---------------------------------------------------------------------------------------------------- 5-2 1.2.6. OSM functions ------------------------------------------------------------------------------------------------------ 5-2 1.2.7. Configuration of inspection jigs --------------------------------------------------------------------------------- 5-2 1.2.8. Inspection mode setting ------------------------------------------------------------------------------------------ 5-3 1.3. OSM control operation ------------------------------------------------------------------------------------------5-12 1.3.1. Switch functions ---------------------------------------------------------------------------------------------------5-12 1.3.2. Basic operational procedures ----------------------------------------------------------------------------------5-12 1.4. Power ON ----------------------------------------------------------------------------------------------------------5-13 1.5. Inspection ----------------------------------------------------------------------------------------------------------5-13 1.5.1. Inspection on LCD brightness and contrast ----------------------------------------------------------------5-13 1.5.2. Inspection on automatic adjustment function---------------------------------------------------------------5-14 1.5.3. Inspection on input signal identification----------------------------------------------------------------------5-15 1.5.4. Inspection on Audio function -----------------------------------------------------------------------------------5-16 1.6. Setting before shipment-----------------------------------------------------------------------------------------5-17 1.7. Safety test ----------------------------------------------------------------------------------------------------------5-17 1.7.1. Input current measurements -----------------------------------------------------------------------------------5-17 1.7.2. Power source/earth connections ------------------------------------------------------------------------------5-18 1.7.3. Dielectric strength test -------------------------------------------------------------------------------------------5-18 1.7.4. Leakage current test----------------------------------------------------------------------------------------------5-19 1.7.5. Insulation resistance test ----------------------------------------------------------------------------------------5-19 2. External inspection on the LCD module --------------------------------------------------------------------5-20 2.1. External inspection of the display surface ------------------------------------------------------------------5-20 2.1.1. Inspection items ---------------------------------------------------------------------------------------------------5-20 2.1.2. Inspection standards ---------------------------------------------------------------------------------------------5-20 3. 3.1. 3.2. 3.3. 3.4. Inspection of PLUG & PLAY communication and OSM "MONITOR INFORMATION" for model name/ serial number ------------------------------------------------------------------------------------5-22 A construction of System ---------------------------------------------------------------------------------------5-22 Input Signal --------------------------------------------------------------------------------------------------------5-22 Operational procedures -----------------------------------------------------------------------------------------5-23 EDID data file------------------------------------------------------------------------------------------------------5-24
5-1
1. Set Inspection
1.1.1. Application The inspection procedures specified in this item shall be applied to the inspection of the LCD1550ME unit.
1.2. Inspection conditions
Unless otherwise specified, inspection shall be carried out under the following conditions. 1.2.1. Power source voltage AC voltage: AC 100 - 120V/ 220 - 240V ± 5%, 50/60Hz 1.2.2. Equipment to be used Equipment that can generate an output of the adjusted VG-819 unit or equivalent. The signal timing for the inspection ROM shall conform to the table provided in Paragraph 1.2.8 herein. 1.2.3. Inspection cables/connections 1) Connections between the unit under inspection and the VG-819 shall be made through D-SUB connector of the unit under inspection and the cable that can carry each output of the VG-819, as specified below. BNC-DSUB (female) connector 2) For connections to the power supply, an AC cable for LCD1550VM shall be used. 1.2.4. Brightness setting Unless otherwise specified, inspection shall be carried out under the condition that the LCD brightness is set at the highest level. 1.2.5. Inspection mode Each inspection shall be carried out in the inspection mode specified in each relevant inspection item. The detailed setting for each mode shall be specified in Paragraph 1.2.8 herein. 1.2.6. OSM functions If checking and operation by OSM are specified in each inspection item, display and operation of the OSM shall be carried out by operating the push switches of the unit under inspection, according to the instructions. Outline operation is described in Item 1.3, "Operation of OSM control." 1.2.7. Configuration of inspection jigs Signal source 1) A video signal generator shall be used, which can generate an output of the VG-819 unit or equivalent.
5-2
1.2.8. Inspection mode setting The respective setting data shall be the data for the VG-819. Signal Mode H CLOCK [MHz] HPERIOD [DOT] HDISP [DOT] HSYNC [DOT] HBACKP [DOT] HDSTART [DOT] HDWIDTH [DOT] VTOTAL [H] VDISP [H] VSYNC [H] VBACKP [H] EQP FP [H] EQP BP [H] SERRATION EQP [H] VDSTART [H] VDLINE SCAN NRZ/RZ HS VS CS HD VD CLOCK SYNC ON RGB VIDEO SETUP CLKMODE CLKOUT DISP,1CH,2CH SW0,SW1 RGB R(7-0),G(7-0),B(7-0) DELAY CLOCK DELAY Format Code Font Cell Direction : 0 01 28.322 900 720 108 54 0 0 449 350 2 60 0 0 OFF OFF 0 0 Nonint NRZ POSI NEGA NEGA NEGA NEGA NEGA VG-819 setting values 02 03 04 Not used 35.500 21.053 28.322 936 848 900 720 640 720 72 64 108 108 84 54 0 0 0 0 0 0 446 440 449 400 350 400 3 8 2 61 25 35 0 0 0 0 0 0 OFF OFF OFF OFF OFF OFF 0 0 0 0 0 0 Nonint Nonint Nonint NRZ NRZ NRZ NEGA NEGA POSI POSI NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA 05 35.500 936 720 72 108 0 0 446 400 3 42 0 0 OFF OFF 0 0 Nonint NRZ NEGA POSI NEGA NEGA NEGA NEGA
V
OUTPUT
PAT SEL CHRA PATTERN GRAY OPTION 2
POSI POSI POSI POSI POSI 0.70V 0.70V 0.70V 0.70V 0.70V OFF OFF OFF OFF OFF 1/2 1/2 1/2 1/2 1/2 ALL ALL ALL ALL ALL POSI POSI POSI POSI POSI OFF OFF OFF OFF OFF 8 bit 8 bit 8 bit 8 bit 8 bit 11111111 11111111 11111111 11111111 11111111 ON ON ON ON ON 4 nsec 4 nsec 4 nsec 4 nsec 4 nsec OPTION 2 OPTION 2 OPTION 2 OPTION 2 OPTION 2 1 1 1 1 1 82 82 82 82 82 16*16 16*16 16*16 16*16 16*16 16*16 16*16 16*16 16*16 16*16 L0: 0 L1: 17 L2: 34 L3: 51 L4: 68 L5: 85 L6: 102 L7: 127 L8: 143 L9: 159 LA: 175 LB: 191 LC: 207 LD: 223 LE: 239 LF: 255 (Note 2)
5-3
Signal Mode H CLOCK [MHz] HPERIOD [DOT] HDISP [DOT] HSYNC [DOT] HBACKP [DOT] HDSTART [DOT] HDWIDTH [DOT] VTOTAL [H] VDISP [H] VSYNC [H] VBACKP [H] EQP FP [H] EQP BP [H] SERRATION EQP VDSTART [H] VDLINE [H] SCAN NRZ/RZ HS VS CS HD VD CLOCK SYNC ON RGB VIDEO SETUP CLKMODE CLKOUT DISP,1CH,2CH SW0,SW1 RGB R(7-0),G(7-0),B(7-0) DELAY CLOCK DELAY Format Code Font Cell Direction : 0
V
OUTPUT
PAT SEL CHRA PATTERN GRAY OPTION 2
VG-819 setting values 06 07 08 09 10 25.18 30.24 31.5 31.5 36.0 800 864 832 840 832 640 640 640 640 640 64 56 96 64 40 120 80 48 96 128 0 0 0 0 0 0 0 0 0 0 509 525 520 500 525 480 480 480 480 480 3 3 2 3 3 25 39 28 16 33 0 0 0 0 0 0 0 0 0 0 OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF 0 0 0 0 0 0 0 0 0 0 Nonint Nonint Nonint Nonint Nonint NRZ NRZ NRZ NRZ NRZ NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA G POSI POSI POSI POSI POSI 0.70V 0.70V 0.70V 0.70V 0.70V OFF OFF OFF OFF OFF 1/2 1/2 1/2 1/2 1/2 ALL ALL ALL ALL ALL POSI POSI POSI POSI POSI OFF OFF OFF OFF OFF 8 bit 8 bit 8 bit 8 bit 8 bit 11111111 11111111 11111111 11111111 11111111 ON ON ON ON ON 4 nsec 4 nsec 4 nsec 4 nsec 4 nsec OPTION 2 OPTION 2 OPTION 2 OPTION 2 OPTION 2 1 1 1 1 1 82 82 82 82 82 16*16 16*16 16*16 16*16 16*16 16*16 16*16 16*16 16*16 16*16 L0: 0 L1: 17 L2: 34 L3: 51 L4: 68 L5: 85 L6: 102 L7: 127 L8: 143 L9: 159 LA: 175 LB: 191 LC: 207 LD: 223 LE: 239 LF: 255 (Note 2)
5-4
Signal Mode H CLOCK [MHz] HPERIOD [DOT] HDISP [DOT] HSYNC [DOT] HBACKP [DOT] HDSTART [DOT] HDWIDTH [DOT] VTOTAL [H] VDISP [H] VSYNC [H] VBACKP [H] EQP FP [H] EQP BP [H] SERRATION EQP VDSTART [H] VDLINE [H] SCAN NRZ/RZ HS VS CS HD VD CLOCK SYNC ON RGB VIDEO SETUP CLKMODE CLKOUT DISP,1CH,2CH SW0,SW1 RGB R(7-0),G(7-0),B(7-0) DELAY CLOCK DELAY Format Code Font Cell Direction : 0 11 36.0 1024 800 72 128 0 0 625 600 2 22 0 0 OFF OFF 0 0 Nonint NRZ POSI POSI NEGA NEGA NEGA NEGA
V
OUTPUT
VG-819 setting values 12 13 14 40.0 49.5 50.0 1056 1056 1040 800 800 800 120 128 80 64 88 160 0 0 0 0 0 0 628 625 666 600 600 600 6 4 3 23 21 23 0 0 0 0 0 0 OFF OFF OFF OFF OFF OFF 0 0 0 0 0 0 Nonint Nonint Nonint NRZ NRZ NRZ POSI POSI POSI POSI POSI POSI NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA NEGA
15 56.25 1048 800 64 152 0 0 631 600 3 27 0 0 OFF OFF 0 0 Nonint NRZ POSI POSI NEGA NEGA NEGA NEGA
PAT SEL CHRA PATTERN GRAY OPTION 2
POSI POSI 0.70V 0.70V OFF OFF 1/2 1/2 ALL ALL POSI POSI OFF OFF 8 bit 8 bit 11111111 11111111 ON ON 4 nsec 4 nsec OPTION 2 OPTION 2 1 1 82 82 16*16 16*16 16*16 16*16 L0:0 L1:17 L2:34 L7:127 L8:143 L9:159 LE:239 LF:255
POSI POSI POSI 0.70V 0.70V 0.70V OFF OFF OFF 1/2 1/2 1/2 ALL ALL ALL POSI POSI POSI OFF OFF OFF 8 bit 8 bit 8 bit 11111111 11111111 11111111 ON ON ON 4 nsec 4 nsec 4 nsec OPTION 2 OPTION 2 OPTION 2 1 1 1 82 82 82 16*16 16*16 16*16 16*16 16*16 16*16 L3:51 L4:68 L5:85 L6:102 LA:175 LB:191 LC:207 LD:223 (Note 2)
5-5
Signal Mode H CLOCK [MHz] HPERIOD [DOT] HDISP [DOT] HSYNC [DOT] HBACKP [DOT] HDSTART [DOT] HDWIDTH [DOT] VTOTAL [H] VDISP [H] VSYNC [H] VBACKP [H] EQP FP [H] EQP BP [H] SERRATION EQP VDSTART [H] VDLINE [H] SCAN NRZ/RZ HS VS CS HD VD CLOCK SYNC ON RGB VIDEO SETUP CLKMODE CLKOUT DISP,1CH,2CH SW0,SW1 RGB R(7-0),G(7-0),B(7-0) DELAY CLOCK DELAY Format Code Font Cell Direction : 0
V
OUTPUT
PAT SEL CHRA PATTERN GRAY OPTION 2
16 57.28 1152 832 64 224 0 0 667 624 3 39 0 0 OFF OFF 0 0 Nonint NRZ NEGA NEGA POSI POSI POSI POSI G