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Common failures and problems analysis of computer moving head beam lights

Views:0     Author:Site Editor     Publish Time: 2021-06-17      Origin:Site

The computer moving head beam light is one of the necessary lamps for stage lighting. The engineer or lighting engineer should be familiar with its common faults and problem analysis. It is a kind of more sophisticated equipment that integrates electronics, machinery, and optics. It has high requirements on the environment, transportation, and use, so its failure rate is also high. Vangaa lighting combined with the common failure phenomena of computer moving head beam lights, and made an analysis of the possible causes.


(1) No response when starting up


1. Whether the power supply is normal and whether the power cord of the lamp is off;


2. Whether the fuse of the lamp is burned out;


3. Whether the switching power supply of the lamp has output voltage.


(2) The bubble does not turn on


1. First judge the quality of the bulb, check whether the bulb's core contact is burned, and whether the bulb itself is broken.


2. Make sure that when the lamp is in the bulb state, measure whether the main board bulb voltage output is normal. Normally, the voltage is generally 10-12 volts.


3. If the above two points are correct, measure whether the PFC output (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 you can directly determine whether there is a problem with the lighter.


After powering on for a period of time, the lamp will automatically reset:


1. The output voltage of the switching power supply is unstable;


2. The wire in the line is loose or the wire is not pressed tightly, resulting in poor contact and automatic reset.

Stage lighting configuration

Stage computer moving head beam light


(3) The bulb is automatically extinguished


1. The bulb is out of bubble, and it will turn on automatically after a period of time. Check whether the heat dissipation system is working properly. If the heat dissipation system fails, the temperature in the lamp body will be too high, and the temperature control switch will automatically trip to ensure the safe use of the lamp. When the electronic lighting is turned off, the lamp will automatically light up when the temperature of the lamp body drops.


2. After the bulb is extinguished, the bulb cannot be automatically lit: the bulb itself is a problem, the bulb sphere surface is white, the inside is black, and the bulb will be extinguished after a period of time (the end of the bulb's life).


3. When the lamp has no control signal for a long time, automatic protection of the gun will appear, and the lamp will be automatically lighted after the signal is turned on.


(4) The pattern plate, color plate, prism, and focus are stuck, jittered, and out of step


1. The jam is usually caused by mechanical reasons. At this time, the color film jam will occur: such as the pattern plate, the deformation of the color plate, the loosening of the fixing part screw, the ejection of the pressure spring of the fixed pattern, etc., will cause the jam. appear.


2. Vibration and loss of synchronization: the screw is loose or falling off, the chip of the channel on the main board is burned out, the motor wire is poorly connected, the broken skin is short-circuited to the ground, and the motor itself is defective.


Horizontal and vertical (X/Y axis) out of step, no positioning:


1. There is too much dust on the light lotus root, which causes the infrared light to be uncontrollable;


2. The light lotus root plate is damaged, and the distance between the light lotus root plate and the light lotus root is improperly adjusted (when it is excluded, the light lotus root plate should be in the middle of the light lotus root plate, and no scratches, bumps, or bumps should be avoided).

Stage beam lights

Stage computer moving head beam light


Vangaa lighting focuses on stage computer moving head beam lights, entered the stage lighting industry in 2004, and has 14 years of experience and technology precipitation. Provide light bitmaps, system diagrams, effect diagrams, lighting configuration; free technical guidance, appointment installation, debugging, training qualifications are complete, four systems, CE, ROHS, and test reports. We uphold the behavioral philosophy of continuous improvement, attitude, and teamwork, and respect every penny and trust of our customers.


The company's main product series are: LED video light series, LED conference light series, stage light series and related supporting products. Widely used in: TV stations, government units, business units, public security systems, schools, hotels and other places, and have been praised by users. Consulting Hotline: +86 159 4961 0761


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