User Manual
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...trademark • The trademark of PJLink is according to the directive 2002/96/EC Article 10 Information for users and Annex IV, and/or to conserve the environment we live in...registered trademark in ! Declaration of Conformity Model number: Trade name: Responsible party: Telephone number: HL2750U MITSUBISHI ELECTRIC Mitsubishi Digital Electronics America, Inc. 9351 Jeronimo Road, Irvine, CA 92618 U.S.A ... ...22 Adjusting projected images...28 Advanced features ...32 Indicators...37 Replacing the lamp ...38 Maintenance ...40 Troubleshooting ...41 Specifications ...44 Note: This...
...trademark • The trademark of PJLink is according to the directive 2002/96/EC Article 10 Information for users and Annex IV, and/or to conserve the environment we live in...registered trademark in ! Declaration of Conformity Model number: Trade name: Responsible party: Telephone number: HL2750U MITSUBISHI ELECTRIC Mitsubishi Digital Electronics America, Inc. 9351 Jeronimo Road, Irvine, CA 92618 U.S.A ... ...22 Adjusting projected images...28 Advanced features ...32 Indicators...37 Replacing the lamp ...38 Maintenance ...40 Troubleshooting ...41 Specifications ...44 Note: This...
User Manual
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...; Place the projector on . This equipment generates, uses and can lead to operate this product by Mitsubishi could void the user's authority to lamp breakage, fire, electric shock or other trouble. Important safeguards (continued) WARNING: Unplug immediately if there is something wrong with the instructions,...: between the equipment and receiver. • Connect the equipment into the lens when it may be determined by one or more than ±10°(right and left) or ±15°(front and rear) may cause trouble or explosion of your dealer for a Class B digital...
...; Place the projector on . This equipment generates, uses and can lead to operate this product by Mitsubishi could void the user's authority to lamp breakage, fire, electric shock or other trouble. Important safeguards (continued) WARNING: Unplug immediately if there is something wrong with the instructions,...: between the equipment and receiver. • Connect the equipment into the lens when it may be determined by one or more than ±10°(right and left) or ±15°(front and rear) may cause trouble or explosion of your dealer for a Class B digital...
User Manual
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...other products. 1 3 2 Inserting the batteries into the remote control 1. EN-6 Remote control parts Others • Lens cap (Attached to the projector) • Lamp replacement tray (857C106-10) • CD-ROM (919C167-20) • Safety Manual/ Quick Start up (871D534-20) Power cord (two) (246C483...pin (type B) Mini D-SUB 15-pin D-SUB 9-pin Audio/Video cable (246C381-10) Power supply parts USB 4-pin (type A) USB cable (246C509-10) Mini D-SUB 15-pin RGB cable for PC (246C521-10) D-SUB 9-pin RS-232C cable (246C548-10) • Used for a long time. • Do not combine a new battery...
...other products. 1 3 2 Inserting the batteries into the remote control 1. EN-6 Remote control parts Others • Lens cap (Attached to the projector) • Lamp replacement tray (857C106-10) • CD-ROM (919C167-20) • Safety Manual/ Quick Start up (871D534-20) Power cord (two) (246C483...pin (type B) Mini D-SUB 15-pin D-SUB 9-pin Audio/Video cable (246C381-10) Power supply parts USB 4-pin (type A) USB cable (246C509-10) Mini D-SUB 15-pin RGB cable for PC (246C521-10) D-SUB 9-pin RS-232C cable (246C548-10) • Used for a long time. • Do not combine a new battery...
User Manual
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...7 13 Terminal board 8 Caution: 9 Do not replace the lamp immediately after using the projector because the lamp would be extremely hot and it may cause burns. Preparating your projector (continued) Overview 6 13 12 11 10 1 Speaker 1 2 Air inlet grille/Filter cover 3 Control... area 4 ZOOM ring 2 5 FOCUS ring 3 6 Remote control sensor (Front) 4 7 Air outlet grille 5 8 Lamp cover 9 Air outlet grille 10 Remote control sensor (Rear) 11 Kensington Security Lock Standard connector 12 Lock bar (SECURITY ANCHOR) • Attach a chain, etc. Control ...
...7 13 Terminal board 8 Caution: 9 Do not replace the lamp immediately after using the projector because the lamp would be extremely hot and it may cause burns. Preparating your projector (continued) Overview 6 13 12 11 10 1 Speaker 1 2 Air inlet grille/Filter cover 3 Control... area 4 ZOOM ring 2 5 FOCUS ring 3 6 Remote control sensor (Front) 4 7 Air outlet grille 5 8 Lamp cover 9 Air outlet grille 10 Remote control sensor (Rear) 11 Kensington Security Lock Standard connector 12 Lock bar (SECURITY ANCHOR) • Attach a chain, etc. Control ...
User Manual
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..., depends on the characteristics of the screen. When operating the remote control, keep the distance from fluorescent lamps. Reception angle Vertical directions 20° 10° 20° 10° Vertical directions (ceiling mount) 20° 20° EN-9 Otherwise, the remote control may malfunction. ... If there is an inverter-operated fluorescent lamp near the remote control, the remote control operation may become unstable. • When you use the remote control too close to the projector via the screen within a distance of 10 m (30 feet) from the projector, pointing ...
..., depends on the characteristics of the screen. When operating the remote control, keep the distance from fluorescent lamps. Reception angle Vertical directions 20° 10° 20° 10° Vertical directions (ceiling mount) 20° 20° EN-9 Otherwise, the remote control may malfunction. ... If there is an inverter-operated fluorescent lamp near the remote control, the remote control operation may become unstable. • When you use the remote control too close to the projector via the screen within a distance of 10 m (30 feet) from the projector, pointing ...
User Manual
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... non-recommended ceiling mount kit or installation of 1500 meters or higher may appear darker than +95ºF (or +35ºC ). INSTALLATION WALL SCREEN BEIGE LAMP MODE STANDARD 2. Press the W or X button to select the color closest to that emit hot air from being blocked. • Do not use the projector...
... non-recommended ceiling mount kit or installation of 1500 meters or higher may appear darker than +95ºF (or +35ºC ). INSTALLATION WALL SCREEN BEIGE LAMP MODE STANDARD 2. Press the W or X button to select the color closest to that emit hot air from being blocked. • Do not use the projector...
User Manual
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... on . Press the W or X button on the remote control to light up when the POWER button is turned on the remote control that the lamp should be replaced soon. Important: • When a 16:9 image is pressed, the image may flicker before displaying 4:3 image, the afterimages of... positioned perpendicularly to each other. (See page 10.) • When the projector cannot be projected in their specified sizes. 5. When LAMP MODE has been set to 7, if necessary. In such a case, wait for the lamp to light up. • The lamp fails to reduce flicker, if it...
... on . Press the W or X button on the remote control to light up when the POWER button is turned on the remote control that the lamp should be replaced soon. Important: • When a 16:9 image is pressed, the image may flicker before displaying 4:3 image, the afterimages of... positioned perpendicularly to each other. (See page 10.) • When the projector cannot be projected in their specified sizes. 5. When LAMP MODE has been set to 7, if necessary. In such a case, wait for the lamp to light up. • The lamp fails to reduce flicker, if it...
User Manual
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... screen optionally. Example of the setting procedure for a while or press the MENU button. 9. For the method to cool the lamp. • The lamp can't be obscured. The projector automatically makes optimum positional settings for the input signal. • If the projected image is displayed...indicator is also muted by pressing the MUTE button. Press the AUTO POSITION button. In this standby mode, the STATUS indicator blinks green. 10.Wait about 2 minutes. • During this procedure with the lens cap to a notebook computer, images may be displaced. Viewing computer...
... screen optionally. Example of the setting procedure for a while or press the MENU button. 9. For the method to cool the lamp. • The lamp can't be obscured. The projector automatically makes optimum positional settings for the input signal. • If the projected image is displayed...indicator is also muted by pressing the MUTE button. Press the AUTO POSITION button. In this standby mode, the STATUS indicator blinks green. 10.Wait about 2 minutes. • During this procedure with the lens cap to a notebook computer, images may be displaced. Viewing computer...
User Manual
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... VIDEO or S-VIDEO button on the remote control that the lamp should be positioned perpendicularly to light up . • The lamp fails to the screen, adjust the projection angle. (See page 10.) 6. Do not strip off before the lamp becomes stable. Adjust the position of the projector to the ... which images are perpendicular to each other. (See page 10.) • When the projector cannot be replaced soon. Projecting images Preparation: • Remove the lens cap. • Turn on . When LAMP MODE has been set to LOW, the lamp mode changes from a DVD player that the projector and...
... VIDEO or S-VIDEO button on the remote control that the lamp should be positioned perpendicularly to light up . • The lamp fails to the screen, adjust the projection angle. (See page 10.) 6. Do not strip off before the lamp becomes stable. Adjust the position of the projector to the ... which images are perpendicular to each other. (See page 10.) • When the projector cannot be replaced soon. Projecting images Preparation: • Remove the lens cap. • Turn on . When LAMP MODE has been set to LOW, the lamp mode changes from a DVD player that the projector and...
User Manual
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..., leave the projector for 1 minute after use may be distorted. • When the audio cable is on, allow the projector to cool down for 10 minutes with the lens cap to protect it should be lit again for a while or press the MENU button. 9. Press the POWER button. •... standby mode. If you want to change the volume from the speaker Press the VOLUME + or - button to turn on the screen. To light the lamp again, press the POWER button. VOLUME 15 • The volume control bar will take another 1 minute for safety purpose. Viewing video images (continued) POWER ...
..., leave the projector for 1 minute after use may be distorted. • When the audio cable is on, allow the projector to cool down for 10 minutes with the lens cap to protect it should be lit again for a while or press the MENU button. 9. Press the POWER button. •... standby mode. If you want to change the volume from the speaker Press the VOLUME + or - button to turn on the screen. To light the lamp again, press the POWER button. VOLUME 15 • The volume control bar will take another 1 minute for safety purpose. Viewing video images (continued) POWER ...
User Manual
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... MENU WALL SCREEN *1 LAMP MODE AUTO POWER ON AUTO POWER OFF IMAGE CAPTURE *2 *3 SETUP SPLASH SCREEN BACK COLOR MUTE MODE IMAGE REVERSE AUTO PRESENTATION STANDARD THEATER sRGB USER ±30 ±30 STANDARD LOW HIGH USER ±10 ±10 ±5 OK GAMMA ... *3 RESOLUTION (MEMORIZE HORIZ.POSITION *8 VERT.POSITION *8 FINE SYNC. *3 *8 TRACKING *2 *3 *8 COMPUTER INPUT *3 OVER SCAN *2 HOLD *2 *3 *8 USER LAMP TIME (LOW) INPUT RESOLUTION VERTICAL FREQUENCY HORIZONTAL FREQUENCY SYNC. SYNC LPF *3 *8 SHUTTER(U) SHUTTER(L) SHUTTER(LS) SHUTTER(RS) VERTICAL FREQUENCY HORIZONTAL FREQUENCY HORIZ. EN...
... MENU WALL SCREEN *1 LAMP MODE AUTO POWER ON AUTO POWER OFF IMAGE CAPTURE *2 *3 SETUP SPLASH SCREEN BACK COLOR MUTE MODE IMAGE REVERSE AUTO PRESENTATION STANDARD THEATER sRGB USER ±30 ±30 STANDARD LOW HIGH USER ±10 ±10 ±5 OK GAMMA ... *3 RESOLUTION (MEMORIZE HORIZ.POSITION *8 VERT.POSITION *8 FINE SYNC. *3 *8 TRACKING *2 *3 *8 COMPUTER INPUT *3 OVER SCAN *2 HOLD *2 *3 *8 USER LAMP TIME (LOW) INPUT RESOLUTION VERTICAL FREQUENCY HORIZONTAL FREQUENCY SYNC. SYNC LPF *3 *8 SHUTTER(U) SHUTTER(L) SHUTTER(LS) SHUTTER(RS) VERTICAL FREQUENCY HORIZONTAL FREQUENCY HORIZ. EN...
User Manual
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... viewing images from the front with BACK COLOR or MUTE MODE set the time elapsed before the projector enters the stand-by mode when the lamp is switched, the projected image may flicker. • Frequent switching of the screen with the projector installed on the floor....pressed. Use to capture the screen for a long time with the projector installed on the ceiling. • Regardless of the setting of the lamp. Select when viewing images projected from the source. When selecting any option depending on the color of the screen with the projector installed on which...
... viewing images from the front with BACK COLOR or MUTE MODE set the time elapsed before the projector enters the stand-by mode when the lamp is switched, the projected image may flicker. • Frequent switching of the screen with the projector installed on the floor....pressed. Use to capture the screen for a long time with the projector installed on the ceiling. • Regardless of the setting of the lamp. Select when viewing images projected from the source. When selecting any option depending on the color of the screen with the projector installed on which...
User Manual
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.... Indicates the type of the sync signal for the interval of lamp replacement.) • When the lamp operating time is 0 to 10 hours, "0H" is indicated by the actual hours. • When the lamp operating time reaches 3750 hours, the bar turns to red. Menu... operation (continued) 5. Indicates the horizontal frequency of the currently projected video signal. The lamp operating time exceeding 10 hours is displayed. INFORMATION menu opt. INFORMATION 0 H LAMP TIME (LOW) INPUT RESOLUTION VERTICAL FREQUENCY HORIZONTAL FREQUENCY R GB H V SYNC. When it reaches 4750 hours...
.... Indicates the type of the sync signal for the interval of lamp replacement.) • When the lamp operating time is 0 to 10 hours, "0H" is indicated by the actual hours. • When the lamp operating time reaches 3750 hours, the bar turns to red. Menu... operation (continued) 5. Indicates the horizontal frequency of the currently projected video signal. The lamp operating time exceeding 10 hours is displayed. INFORMATION menu opt. INFORMATION 0 H LAMP TIME (LOW) INPUT RESOLUTION VERTICAL FREQUENCY HORIZONTAL FREQUENCY R GB H V SYNC. When it reaches 4750 hours...
User Manual
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... to personal computer through the USB port, you are recommended to use the mouse remote control function with a computer supporting USB only. • When the lamp is turned ON, the computer connected with USB connector USB USB cable To USB port USB 4-pin (type B) USB 4-pin (type A) • You can operate...
... to personal computer through the USB port, you are recommended to use the mouse remote control function with a computer supporting USB only. • When the lamp is turned ON, the computer connected with USB connector USB USB cable To USB port USB 4-pin (type B) USB 4-pin (type A) • You can operate...
User Manual
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... was off .) Blinking green/red Blinking green/red O f f Steady or Blinking The lamp cover isn't closed. Steady red Steady red Blinking green The protection circuit is working or the lamp is in an abnormal condition. • Wait until the STATUS indicator goes out, then press...green or Blinking orange Abnormal temperature • The ventilation grilles are clogged with a new lamp if this duration will be turned off and consult your dealer. *1: Duration when LAMP MODE of the projector. Steady green Blinking green/red Steady red Blinking red Steady red Steady...
... was off .) Blinking green/red Blinking green/red O f f Steady or Blinking The lamp cover isn't closed. Steady red Steady red Blinking green The protection circuit is working or the lamp is in an abnormal condition. • Wait until the STATUS indicator goes out, then press...green or Blinking orange Abnormal temperature • The ventilation grilles are clogged with a new lamp if this duration will be turned off and consult your dealer. *1: Duration when LAMP MODE of the projector. Steady green Blinking green/red Steady red Blinking red Steady red Steady...
User Manual
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...is set to STANDARD, this duration will be lit red only) and the lamp replacement message will be shorted. *2: When LAMP MODE is set to LOW. The period of lamp replacement appears, replace it from lamp to lamp, depending on . Be careful not to breathe it or avoid it with ...use . You may decrease during use it should enter your dealer for 1 minute every 25 hours*1 thereafter. Contact your face. When the lamp isn't installed properly, it above your dealer for any foreign object present inside of the projector. Decrease in luminescence and/or color brightness indicates...
...is set to STANDARD, this duration will be lit red only) and the lamp replacement message will be shorted. *2: When LAMP MODE is set to LOW. The period of lamp replacement appears, replace it from lamp to lamp, depending on . Be careful not to breathe it or avoid it with ...use . You may decrease during use it should enter your dealer for 1 minute every 25 hours*1 thereafter. Contact your face. When the lamp isn't installed properly, it above your dealer for any foreign object present inside of the projector. Decrease in luminescence and/or color brightness indicates...
User Manual
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...flammable object or where children can reach to reset the lamp operation time whenever you replace the lamp. • Do not reset the lamp operation time unless you replace the lamp. If it is pulled out quickly, the lamp may break scattering glass (c) fragments. • Do not spill... is broken, be regulated due to prevent glass fragments from scattering. • Don't put the lamp directly on the removed lamp box or do not place it is locked. 8. Important: • The lamp is reset successfully. • The projector doesn't turn on it may be careful not to 4...
...flammable object or where children can reach to reset the lamp operation time whenever you replace the lamp. • Do not reset the lamp operation time unless you replace the lamp. If it is pulled out quickly, the lamp may break scattering glass (c) fragments. • Do not spill... is broken, be regulated due to prevent glass fragments from scattering. • Don't put the lamp directly on the removed lamp box or do not place it is locked. 8. Important: • The lamp is reset successfully. • The projector doesn't turn on it may be careful not to 4...
User Manual
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...and the ventilation slots Use a soft cloth to clean the filter. Flammable substances may ignite causing fire or breakdown while the lamp is attached correctly without displacement. Attach the filter cover to the projector. • Make sure that the air-filter is illuminating.... Flammable substances may ignite causing fire or backdown when the lamp is fragile. Cleaning of the arrow. 2. If not, dust may rise and cause troubles, such as damage to the inside parts and ...
...and the ventilation slots Use a soft cloth to clean the filter. Flammable substances may ignite causing fire or breakdown while the lamp is attached correctly without displacement. Attach the filter cover to the projector. • Make sure that the air-filter is illuminating.... Flammable substances may ignite causing fire or backdown when the lamp is fragile. Cleaning of the arrow. 2. If not, dust may rise and cause troubles, such as damage to the inside parts and ...
User Manual
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... the POWER button. • When the STATUS indicator is steady red, it goes out. • Press the POWER button several times. • Replace the lamp. (The lamp is clogged with the supplied cable for a few minutes and then try again. • If the projector was cooled down sufficiently last time..., the fan may start rotating and the POWER button may take about 10 minutes. 4. Replace the lamp in the FEATURE menu to OFF. (See page 25.) • Check that the intake vent is clean. • Check that the...
... the POWER button. • When the STATUS indicator is steady red, it goes out. • Press the POWER button several times. • Replace the lamp. (The lamp is clogged with the supplied cable for a few minutes and then try again. • If the projector was cooled down sufficiently last time..., the fan may start rotating and the POWER button may take about 10 minutes. 4. Replace the lamp in the FEATURE menu to OFF. (See page 25.) • Check that the intake vent is clean. • Check that the...
User Manual
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... DISPLAY INPUT to the external device using the correct terminals. • Check that they are not broken. • Check that the cable connected to LCD projector and isn't a product malfunction. (A small number of color reproducibility. In such a case, you use an RGB signal amplifier along ...with those displayed on the remote control to each other . (See page 10.) • Adjust BRIGHTNESS and CONTRAST in the IMAGE menu. (See page 28.) • Replace the lamp. (See page 38.) • Adjust the focus. (See pages 15 and 19.) • Clean the...
... DISPLAY INPUT to the external device using the correct terminals. • Check that they are not broken. • Check that the cable connected to LCD projector and isn't a product malfunction. (A small number of color reproducibility. In such a case, you use an RGB signal amplifier along ...with those displayed on the remote control to each other . (See page 10.) • Adjust BRIGHTNESS and CONTRAST in the IMAGE menu. (See page 28.) • Replace the lamp. (See page 38.) • Adjust the focus. (See pages 15 and 19.) • Clean the...