Hitachi Home-1 Projector Users Manual
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31 Lamp The projector uses a high-pressure mercury glass lamp. The lamp can break with aloud bang, or burn out,if jolted or scratched, handled while hot, or worn over time. Note that each lamp has a different lifetime, and some may burst or burn out soon after you start using them. In addition, when the bulb bursts, it is possible for shards of glassto fly into the lamp housing, and for gas containing mercuryto escape from the projector’s vent holes. • If the lamp should break (it will make a loud bang when it does), unplug the power cord from the outlet, and make sure to request a replacement lamp from your local dealer. Note that shards of glass could damage the projector’s internals, or cause injury during handling, so please do not try to clean the projector or replace the lamp yourself. • If the lamp should break (it will make a loud bang when it does), ventilate the room well, and make sure not to breathe the gas that comes out of the projector vents, or get it in your eyes or mouth. • Do not open the lamp cover while the projector is suspended from above. This is dangerous, since if the lamp’s bulb has broken, the shards will fall out when the cover is opened. In addition, working in high places is dangerous, so ask your local dealer to have the lamp replaced even if the bulb is not broken • If the indicators or a message prompts you to replace the lamp (see the section “Related Messages” and “Regarding the indicator Lamps”), replace the lamp as soon as possible. Using the lamp for long periods of time, or past the replacement date, could cause it to burst. Do not use old (used) lamps; this is a cause of breakage. • If the lamp breaks soon after the first time it is used, it is possible that there are electrical problems elsewhere besides the lamp. If this happens, contact your local dealer or a service representative. • Use the lamp of the specified type only.Type number: DT00611 (sold separately) • Handle with care: jolting or scratching could cause the lamp bulb to burst during use. • Before replacing the lamp, make sure the power switch is off and the power cable is not plugged in, then wait at least 45 minutes for the lamp to cool sufficiently. Handling the lamp while hot can cause burns, as well as damaging the lamp. • Do not use the projector with the lamp cover removed. At the lamp replacing, make sure that the screws are screwed in firmly. Loose screws could result in damage or injury. • Obey local ordinances when disposing of used lamps. In most cases, it is possible to dispose of used bulbs in the same manner as used glass bottles, but in some cases, bulbs are sorted separately. WARNINGHIGH VOLTAGE HIGH TEMPERATURE HIGH PRESSURE )0.&&O 1.

32 1Turn off the projector, and unplug the power cord. Allow the lamp bulb to cool for at least 45 minutes. 6Insert the new lamp, and tighten the 2 screws firmly to lock it in place. Slide the lamp cover into place, and tighten the screw of the lamp cover firmly. Slowly turn the projector so that the top is facing up. 3After making sure that the projector has cooled adequately, slowly flip over the projector, so that the bottom is facing up. 4Unscrew the screw of the lamp cover, then slide and take the lamp cover up. 2Contact your local dealer to prepare a new lamp. Tell the dealer your lamp type number. If the projector is mounted on the ceiling, or if the lamp has broken, also ask the dealer to replace the lamp. 9Turn on the projector, and reset the lamp timer. When the lamp has been replaced after the message of “THE POWER WILL TURN OFF AFTER 0hr.” is displayed, complete the following operation within 10 minutes of switching power on. (1) While the projector running, press the MENU button to open the menu. (2) Choose the “OPTION” on the menu using the / button, then press the button or ENTER button. (3) Choose the “LAMP TIME” using the / button, then press and hold the button of projector or the RESET button of remote control for 3 seconds. (4) Choose the “RESET” using the button. In the case of replacement by yourself, 5Unscrew the 2 screws, and slowly pick up the lamp by the handles. Replacing The Lamp WARNING• Please carefully read the “User’s Manual - Safety Guide”. CAUTION • Do not reset the lamp timer without replacing the lamp. • When you replace the lamp, please replace also the air filter. The air filter may be attached when you buy a replacement lamp for this projector. Please ask your dealer. If the indicators or a message prompts you to replace the lamp, replace the lamp as soon as possible. Using the lamp for long periods of time, or past the replacement date, could cause it to burst. If the projector is mounted on the ceiling, or if the lamp has broken, do not try to clean the projector or replace the lamp yourself. Lamp cover Screw Handles Screws 7 8 Lamp (continued) )0.&&O 1.

33 Air Filter Caring For The Air Filter The air filter should be cleaned about every 100 hours. If the indicators or a message prompts you to clean the air filter (see the section “Related Messages” and “Regarding The Indicator Lamps”), clean the air filter as soon as possible. If the air filter becomes clogged by dust or the like, internal temperature rises and could cause malfunction. 1Turn off the projector, and unplug the power cord. 2Apply a vacuum cleaner to the top of the filter cover to clean the air filter. 3Reset the filter timer. Filter Cover WARNING• Please carefully read the “User’s Manual - Safety Guide”. • Before replacing the air filter, make sure the power switch is off and the power cable is not plugged in. • Use the air filter of the specified type only. Type number: NJ08312(sold separately) • Do not use the projector with the air filter and filter cover removed. The use without the air filter could result in damage. CAUTION • Do not reset the filter timer without cleaning or replacing the air filter. • If the air filter becomes clogged by dust or the like, internal temperature rises and could cause malfunction. The power is automatically turned off in order to prevent the projector from overheating internally. • When you replace the lamp, please replace also the air filter. The air filter may be attached when you buy a replacement lamp for this projector. Please ask your dealer. (1) Turn on the projector. While the projector running, press the MENU button to open the menu. (2) Choose the “OPTION” on the menu using the / button, then press the button or ENTER button. (3) Choose the “FILTER TIME” using the / button, then press and hold the button of projector or the RESET button of remote control for 3 seconds. (4) Choose the “RESET” using the button. )0.&&O 1.

34 Replacing The Air Filter Filter cover Air filter Release buttons Release buttons Turn off the projector, and unplug the power cord. 2Contact your local dealer to prepare a new air filter. Tell the dealer your air filter type number. 4Hold the release buttons of the air filter, while pulling down it. 3After making sure that the projector has cooled adequately, remove the filter cover. Hold the release buttons of the filter cover, while pulling up it. 6Reset the filter timer. (1) Turn on the projector. While the projector running, press the MENU button to open the menu. (2) Choose the “OPTION” on the menu using the / button, then press the button or ENTER button. (3) Choose the “FILTER TIME” using the / button, then press and hold the button of projector or the RESET button of remote control for 3 seconds. (4) Choose the “RESET” using the button. If the soiling will not come off the air filter, or it becomes damaged, then it needs to be replaced. Please replace the air filter as soon as possible. 1 Insert a new air filter, and replace the filter cover.5 Air Filter (continued) )0.&&O 1.

35 Other Care WARNING•Please carefully read the “User’s Manual - Safety Guide”. • Before replacing the air filter, make sure the power switch is off and the power cable is not plugged in. ATTENTION • Do not use cleaners or chemicals other than those listed below, including benzene and paint thinner. • Do not use aerosols or sprays. • Do not polish or wipe with hard objects. Caring For The Inside Of The Projector Caring For The Lens In order to ensure the safe use of your projector, please have it cleaned and inspected by your local dealer about once every 2 years. Never try to care for the inside of the unit yourself. Doing so is dangerous. 1Turn off the projector, and unplug the power cord. 2Lightly wipe the lens with a commercially available lens-cleaning wipe. Do not touch the lens directly with your hand. Caring For The Cabinet And Remote Control 1Turn off the projector, and unplug the power cord. 2Wipe lightly with gauze or a soft cloth. If soiling is severe, dip soft cloth in water or a neutral cleaner dilute in water, and wipe lightly after wringing well. Then, wipe lightly with a soft, dry cloth. Lens )0.&&O 1.

36 Troubleshooting Related Messages When the units power is ON, messages such as those shown below may be displayed. When any such message is displayed on the screen, please respond as described below. If the same message is displayed after the treatment, or if a message other than the following appears, please contact your dealer or service company. MessageDescription CHANGE THE LAMP AFTER REPLACING LAMP, RESET THE LAMP TIMER. (*1)Lamp usage time is approaching 2000 hours. (*2) Preparation of a new lamp, and an early lamp change is recommended. After you have changed the lamp, please be sure to reset the lamp timer. CHANGE THE LAMP AFTER REPLACING LAMP, RESET THE LAMP TIMER. THE POWER WILL TURN OFF AFTER ** hr. (*1)Lamp usage time is approaching 2000 hours. (*2) A lamp change within ** hours is recommended. When lamp usage reaches 2000 hours, the power will automatically be turned OFF. Please change the lamp by referring to the “Lamp” section of this manual. After you have changed the lamp, please be sure to reset the lamp timer. CHANGE THE LAMP AFTER REPLACING LAMP, RESET THE LAMP TIMER. THE POWER WILL TURN OFF AFTER 0 hr.As lamp use has reached 2000 hours (*2), the power will soon be automatically turned OFF. Please immediately turn the power off, and change the lamp by referring to the “Lamp” section of this manual. After you have changed the lamp, please be sure to reset the lamp timer. NO INPUT IS DETECTED ON ***There is no input signal. Please confirm the signal input connection, and the status of the signal source. SYNC IS OUT OF RANGE ON *** *****kHz *****HzThe horizontal or vertical wavelength of the inputted signal is outside of the response parameters of this unit. Please confirm the specs for this unit or the signal source specs. CHECK THE AIR FLOW The internal portion temperature is rising. Please turn the power OFF, and allow the unit to cool down at least 20 minutes. After having confirmed the following items, please turn the power ON again. • Is there blockage of the air passage aperture?• Is the air filter dirty?• Does the peripheral temperature exceed 35°C? (*1) • Although this message will be automatically disappeared after around 3 minutes, it will be reappeared every time the power is turned ON. (*2) • Lamps have a finite product life. Lamps are characterized by the fact that, after long hours of usage, a lamp will no longer light up, or the lamp will break or burst, etc. This unit is equipped with an automatic shut-down function, such that the power will automatically be turned OFF when lamp usage time has reached 2,000 hours. Please be aware, however, that among lamp types, there are major differences in product lifetimes; a lamp may thus fail to light even prior to the functioning of the automatic shut-down function of this unit.NOTE fHfV )0.&&O 1.

37 Wipe the dust-detecting window by using a soft cloth. Troubleshooting (continued) Related Messages (continued) MessageDescription CLEAN THE AIR FILTER POWER OFF FIRST, THEN CLEAN THE AIR FILTER. AFTER CLEANING THE AIR FILTER, RESET THE FILTER TIMER.A note of precaution when cleaning the air filter. Please immediately turn the power OFF, and clean or change the air filter by referring to the “Air Filter” section of this manual. After you have cleaned or changed the air filter, please be sure to reset the filter timer. If the same message is displayed after the treatment, please clean the transparent area of filter cover and the dust-detecting window, according to the following. ATTENTION• The transparent area of filter cover and the dust-detecting window should be cleaned for normal operation of the optical dust detecting system. Please pay attention not to remain fiber or fragment of cloth inside the duct. Turn off the projector, and unplug the power cord. 2After making sure that the projector has cooled adequately, remove the filter cover. Hold the release buttons of the filter cover, while pulling up it. 4Remove the air filter. Hold the release buttons of the air filter, while pulling down it. 1 Replace the air filter and filter cover. Transparent areaFilter cover Dust detecting window 3Wipe the transparent area of the filter cover by using a swab or a soft cloth. 5 6 (Rear side) (Bottom side) Filter cover Air filter Release buttons Release buttons )0.&&O 1.

38 ATTENTION• When the interior portion has become overheated, or when the lamp cover has not been properly fixed (attached), for safety purposes, the power source may be automatically turned off, and the indicator lamps may also be turned off. In such a case, press the “Ó” (OFF) side of the power switch, and wait at least 45 minutes. After the unit has sufficiently cooled down, please make confirmation of the attachment state of the lamp and lamp cover, and then turn the power on again. Regarding The Indicator Lamps Lighting and flashing of the POWER indicator, the LAMP indicator, and the TEMP indicator have the meanings as described in the table below. Please respond in accordance with the instructions within the table. If the same indication is displayed after the treatment, or if an indication other than the following is displayed, please contact your dealer or service company. POWER indicatorLAMP indicatorTEMP indicatorDescription Lighting in orangeTurned offTurned offThe unit is in a standby state. Please refer to the “Power ON/OFF” section of this manual. Flashing in greenTurned offTurned offThe unit is warming up. Please wait. Lighting in greenTurned offTurned offThe unit is in an ON state. Ordinary operations may be performed. Flashing in orangeTurned offTurned offThe unit is cooling down. Please wait. Blinking in red-- The unit is cooling down. A certain error has been detected. Wait until the POWER indicator has finished flashing, and then perform the proper response measure using the item descriptions below as reference. Lighting or blinking in redLighting in redTurned off The projector lamp does not light, and/or there is a possibility that the interior portion has become heated. Turn the power OFF and wait at least 20 minutes. After the unit has sufficiently cooled down, please make confirmation of the following items, and then turn the power ON again. If the same indication is displayed, please change the lamp. • Is there blockage of the air passage aperture? • Is the air filter is dirty? • Does the peripheral temperature exceed 35°C? Troubleshooting (continued) )0.&&O 1.

39 POWER indicatorLAMP indicatorTEMP indicatorDescription Lighting or blinking in redTurned offBlinking in red The cooling fan is not operating. Turn the power OFF and wait at least 20 minutes. After the unit has sufficiently cooled down, please make confirmation of the following item, and then resent the power to ON. • Is there no foreign matter caught in the cooling fan? Lighting or blinking in red Turned offLighting in red There is a possibility that the interior portion has become heated. Turn the power OFF and wait at least 20 minutes. After the unit has sufficiently cooled down, please make confirmation of the following item, and then resent the power to ON. • Is there blockage of the air passage aperture? • Is the air filter is dirty? • Does the peripheral temperature exceed 35°C? Lighting in greenAlternative blinking in the redThere is a possibility that the interior portion has become overcooled. Please use the unit within the usage temperature parameters (0°C to 35°C). After the treatment, resent the power to ON. Lighting in greenSimultaneous blinking in red It is time to clean the air filter, or there is no air filter. Please immediately turn the power OFF, and clean or change the air filter by referring to the “Air Filter” section of this manual. After you have cleaned or changed the air filter, please be sure to reset the filter timer. After the treatment, resent the power to ON. Regarding The Indicator Lamps (continued) Troubleshooting (continued) )0.&&O 1.

40 WARNING• Please carefully read the “User’s Manual - Safety Guide”. Never use the projector if abnormal operations such as smoke, strange odor, excessive sound, damaged casing or elements or cables, penetration of liquids or foreign matter, etc. should occur. Phenomena That May Easily Be Mistaken For Machine Defects • Although bright spots or dark spots may appear on the screen, this is a unique characteristic of liquid crystal displays, and such do not constitute or imply a machine defect.NOTE Before requesting repair, please check in accordance with the following chart. If the situation cannot be corrected, then contact your dealer. PhenomenonCases not involving a machine defect, and Items to be confirmedReference pages Power does not come ON. The main power source is not ON. Turn on the main power. 11,14The electrical power cord is not plugged in. Correctly connect the power cord. The main power source has been interrupted during operation, such as by a power outage (blackout), etc. Be sure to press the “Ó” (power OFF) side of the main power switch, and leave this OFF for at least 20 minutes. After the unit has sufficiently cooled down, turn ON the power source. 14 The lamp has not been properly fixed. Turn the power OFF and wait at least 45 minutes. After the unit has sufficiently cooled down, please make confirmation of the attachment state of the lamp and lamp cover, and then turn the power ON again. 32 Neither sounds nor pictures are outputted.The input changeover settings are mismatched. Select the input signal, and correct the settings.15 No signal is being inputted. Correctly connect the connection cables.10 Pictures are displayed, but no sounds are heard. The electrical wiring to this unit is not correctly connected. Correctly connect the connection cables.10 The volume setting has been set at (or adjusted to) an extremely low level. Adjust the VOLUME setting to a higher level.17 The MUTE mode is the current setting. Press the MUTE button to release (change) the MUTE mode setting.17 Sounds are heard, but no pictures are displayed. The electrical wiring to this unit is not correctly connected. Correctly connect the connection cables.10 The brightness setting has been set at (or adjusted to) an extremely low level. Adjust the BRIGHT setting to a brighter level.22 The lens cap has not been removed. Remove the lens cap.4,14 Troubleshooting (continued) )0.&&O 1.