LED move beam light  problems to slove

Issuing time:2018-11-20 00:00

The light beam has a small angle of light and is more concentrated. So it can produce a rich stage shape. Another is that the lamps are small, the scanning speed is faster, and the stage is more active.  The beam lamp is a kind of more sophisticated equipment. It integrates electronics, machinery and optics, and has high requirements for environment, transportation and use, so its failure rate is also high. Here, combined with the phenomenon of failure, an analysis of the possible causes is made for reference by relevant personnel.The beam light and our traditional computer lights are still structurally different.  The first is the bulb circuit: the previous traditional computer lights are bright bulb lines using magnetic ballasts + triggers. Beam lights generally use electronic ballasts (aka lighters), no need to be equipped with triggers. One more PFC (AC220V to DC380V) because the input of the ballast is DC 380V.  The second is the control part: the beam lamp is basically a transformer power supply transformer, which communicates with the traditional inductor transformer. Since the switching power supply is used, the stability of the control circuit of the latter stage is greatly enhanced. Due to the technical difficulty of the switching power supply, the failure rate will be higher than that of the inductor transformer. Because the switching power supply is used, the beam lamp is not affected by the change of the external voltage, and can be input at full voltage (110V-240V).  The problem caused by the unstable voltage does not exist.For some common faults, the analysis is as follows:No response at boot 1. Is the power supply normal, and the power cord of the lamp is off? 2. Whether the fuse of the lamp is burnt out; 3. Whether the switching power supply of the lamp has an output voltage. Boot is not bright 1. First judge whether the bulb is good or bad, check if the bulb's bubble contact is blown, and if the bulb itself is broken. 2. Determine whether the lamp's bubble voltage is normal when the lamp is in the state of bubble, and the normal condition is generally 10 to 12 volts. 3. If the above two points are correct, measure whether the PFC output (the input end of the lighter) has an AC voltage output of about 380V. If there is an output, it indicates that the PFC is good, so that it can directly determine whether there is a problem with the lighter.

After the power is turned on for a period of time, the lamp is automatically reset. 1. The output voltage of the switching power supply is unstable; 2. The cable is loose in the line or the pressure line is not pressed, resulting in poor contact, resulting in automatic reset

Pattern plate, color plate, prism, focusing appear stuck, jitter, out of step 1, the card is generally a mechanical cause, this time there will be a phenomenon of color chip stuck: such as the pattern plate, the color plate deformation, the loosening of the fixing parts, the loosening of the fixed pattern, etc., will cause the card to die. appear. 2, jitter and out of step: the screw loose or fall off, the chip on the main board on its main board burned out, the motor line is in poor contact, the skin is short-circuited to the ground, and the motor itself is a problem. Horizontal vertical (X/Y axis) out of step, no positioning 1. Excessive dust on the diaphragm causes the infrared light to be out of control; 2, the diaphragm is damaged, the distance between the diaphragm and the diaphragm is not properly adjusted (when excluded, the diaphragm should be in the middle of the diaphragm, and there is no scratch, bump, and smash);The above is the analysis of the causes of some common faults. In fact, it is necessary to reduce the occurrence of faults. The usual maintenance is indispensable. The following is a brief introduction to the daily maintenance:

1. For optical components, firstly use a vacuum cleaner or air bag to gently blow off the surface dust, wipe off the granules with odorless cotton paper or cotton cloth soaked with water, and remove the dust and residue with cotton cloth or odorless paper soaked with ethylene glycol. Material, use distilled water for final cleaning, and then dry with a soft cotton cloth;

2, with coated color film and optical lens parts, because the surface of the coating layer is very brittle, it is easy to scratch, so do not use a destructive solvent for cleaning; 3, the beam light should be lightly handled to avoid collisions, falls, etc.; 4, pay attention not to use in places with a lot of sand and dust, or use quality products, and clean in time

5. After the performance, use the console to extinguish the bubble, the lamp does not cut off the power supply, let it continue to work for a period of time (let the fan inside the lamp continue to work to reduce the temperature inside the lamp); 6. After the performance of the liquidity, it should be installed in the special air box to prevent moisture and shock. The fixed installation of the beam lamp should pay attention to anti-ash and anti-shock.

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