Slide projector lamp life extension method:
1. The switching time interval should be about 5 minutes. Because the power supply of the projector adopts the proportional pulse width modulation method, the utility power is stepped down, stabilized, and stabilized. When processing these points, the projector power supply is used. Both the power switch tube and the transformer will work at a higher frequency. The switching tube will naturally have a considerable switching loss during the frequent switching process. These losses will be transferred into heat, which will cause the internal temperature of the projector. The rise, coupled with the heat generated by the bulb itself, is concentrated in the small space inside the projector, which can easily cause the bulb to explode. In addition, frequent switching of the power supply will also cause a large current impact on the projection bulb, and the projection bulb will be easily damaged. In order to avoid damage to these bulbs, we try not to switch the projector frequently, and remember that if you want to reboot after turning off the projector, you must wait patiently for about 5 minutes.
2. The projection environment should not be reflective. Many people often mistakenly believe that as long as the brightness of the bulb is raised enough, the projection effect will be very clear and easy to distinguish; in fact, the projection effect is good or bad, in addition to the brightness of the bulb, It is related to the working environment of the light bulb, and the light intensity of the working environment will affect the projection effect. Therefore, we must lay out the projection working environment, as far as possible to avoid the projection lamp working under too strong conditions, because too strong ambient light may make the bulb brightness effect worse; so to get better Projection effect, we may wish to install curtains in the room to block the outdoor light; the walls and floors of the room should use materials that are not suitable for reflection, because these details will make the brightness of the bulbs to a higher level.
3. Ensure the "identity" of the power supply In order to prevent the lamp from exploding or the working power mismatch, the projector has strict regulations on the power supply specifications. When connecting the projector to a power outlet, the user should pay attention to the nominal value of the power supply voltage, the ground wire of the machine and the polarity of the power supply, and pay attention to grounding. This is because when the projector is connected to a signal source (such as a PC) with different power sources, there may be a high potential difference between the two zero lines. When the user plugs in or unplugs the signal cable or other circuits, the ignition will occur between the plug and the socket, and the signal input circuit may be damaged. Not only may the lamp not work properly, but also the projector may be damaged. In serious cases, Caused a fire accident. Therefore, it is best to use the supplied power cord and ensure that the outlet connected to the power cord is grounded reliably.
4. Switching power supply attention order Because the projector power supply part bears the task of powering the internal circuit part of the projector and the projector bulb. If the projector power is not turned off in the correct order, then the bulb may be connected to the projector circuit part. When the power is turned off, the fan power inside the projector will stop working, so that the heat generated by the bulb and the projector during the working process cannot be removed by the fan in time, which may cause the bulb to explode. Many users who have just started to touch the projector often switch the projector frequently and arbitrarily. In fact, the projector is strictly regulated to turn on and off its power supply, otherwise it may damage the light bulb or the projector. Normally, when turning on the projector, we should first turn on the power, and then press and hold the LAMP indicator in the projector's control panel until the green light does not flash. When the power is off, you cannot directly cut off the power. Instead, press and hold the LAMP indicator until the green light does not flash, the projector cooling fan stops rotating, and then turn off the power. Therefore, proper power to the projector can greatly affect the life of the lamp and the life of the internal components of the projector.
5. Each work does not exceed four hours. If the projection lamp is working for a long time, the imaging system inside the projector may emit a lot of heat, which will cause the temperature inside the projector to increase rapidly due to the inner wall of the projector bulb. Quartz will devitrify under high temperature conditions, resulting in white spots, so the devitrification will block a lot of light, causing the temperature of the local area to rise abnormally, which will cause the devitrification area to further expand, thus causing the brightness to decay rapidly, and very May cause the bulb to explode. Therefore, we must pay attention to the projector's duration of work can not exceed four hours.
1. The switching time interval should be about 5 minutes. Because the power supply of the projector adopts the proportional pulse width modulation method, the utility power is stepped down, stabilized, and stabilized. When processing these points, the projector power supply is used. Both the power switch tube and the transformer will work at a higher frequency. The switching tube will naturally have a considerable switching loss during the frequent switching process. These losses will be transferred into heat, which will cause the internal temperature of the projector. The rise, coupled with the heat generated by the bulb itself, is concentrated in the small space inside the projector, which can easily cause the bulb to explode. In addition, frequent switching of the power supply will also cause a large current impact on the projection bulb, and the projection bulb will be easily damaged. In order to avoid damage to these bulbs, we try not to switch the projector frequently, and remember that if you want to reboot after turning off the projector, you must wait patiently for about 5 minutes.
2. The projection environment should not be reflective. Many people often mistakenly believe that as long as the brightness of the bulb is raised enough, the projection effect will be very clear and easy to distinguish; in fact, the projection effect is good or bad, in addition to the brightness of the bulb, It is related to the working environment of the light bulb, and the light intensity of the working environment will affect the projection effect. Therefore, we must lay out the projection working environment, as far as possible to avoid the projection lamp working under too strong conditions, because too strong ambient light may make the bulb brightness effect worse; so to get better Projection effect, we may wish to install curtains in the room to block the outdoor light; the walls and floors of the room should use materials that are not suitable for reflection, because these details will make the brightness of the bulbs to a higher level.
3. Ensure the "identity" of the power supply In order to prevent the lamp from exploding or the working power mismatch, the projector has strict regulations on the power supply specifications. When connecting the projector to a power outlet, the user should pay attention to the nominal value of the power supply voltage, the ground wire of the machine and the polarity of the power supply, and pay attention to grounding. This is because when the projector is connected to a signal source (such as a PC) with different power sources, there may be a high potential difference between the two zero lines. When the user plugs in or unplugs the signal cable or other circuits, the ignition will occur between the plug and the socket, and the signal input circuit may be damaged. Not only may the lamp not work properly, but also the projector may be damaged. In serious cases, Caused a fire accident. Therefore, it is best to use the supplied power cord and ensure that the outlet connected to the power cord is grounded reliably.
4. Switching power supply attention order Because the projector power supply part bears the task of powering the internal circuit part of the projector and the projector bulb. If the projector power is not turned off in the correct order, then the bulb may be connected to the projector circuit part. When the power is turned off, the fan power inside the projector will stop working, so that the heat generated by the bulb and the projector during the working process cannot be removed by the fan in time, which may cause the bulb to explode. Many users who have just started to touch the projector often switch the projector frequently and arbitrarily. In fact, the projector is strictly regulated to turn on and off its power supply, otherwise it may damage the light bulb or the projector. Normally, when turning on the projector, we should first turn on the power, and then press and hold the LAMP indicator in the projector's control panel until the green light does not flash. When the power is off, you cannot directly cut off the power. Instead, press and hold the LAMP indicator until the green light does not flash, the projector cooling fan stops rotating, and then turn off the power. Therefore, proper power to the projector can greatly affect the life of the lamp and the life of the internal components of the projector.
5. Each work does not exceed four hours. If the projection lamp is working for a long time, the imaging system inside the projector may emit a lot of heat, which will cause the temperature inside the projector to increase rapidly due to the inner wall of the projector bulb. Quartz will devitrify under high temperature conditions, resulting in white spots, so the devitrification will block a lot of light, causing the temperature of the local area to rise abnormally, which will cause the devitrification area to further expand, thus causing the brightness to decay rapidly, and very May cause the bulb to explode. Therefore, we must pay attention to the projector's duration of work can not exceed four hours.
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