electrostatic speakers

Electrostatic inductionPerimeter detectors are very sensitive sensors. To ensure proper use of the system and give full play to its functions, the project installer must carefully read the product instructions before construction, check the cables, ground wires, power cables, and installation according to the product instructions carefully before determining the fault. Then, the test starts after 5 minutes of power-on:

Failure phenomenon:B490 and other models in the use of external speakers or headphones occasionally appear in the built-in speaker at the same time audible, if you try to plug and replace other speakers or headphones still have this phenomenon, you can refer to the following instructions to operate. Solution: 1. Check whether the driver is up to dateTo Lenovo-driven Web site to download the latest sound c

People in the carpet or sofa stand up, the human body voltage can be as high as 10,000 volts, and the rubber and plastic film industry electrostatic can be as high as more than 100,000 volts. So, why is the voltage of static electricity so high? The following author from the electrostatic generation principle began to analyze. A The principle of electrostatic gen

! By the way, there's a little trick to forget to tell you, perhaps a lot of friends are using the Display protection screen, this device can prevent radiation and electrostatic damage, display protection screen has a leader to export the received static electricity, you can connect the other end of the lead wire just produced in any part of the electrostatic conduction line, Simply cut a small opening of t

Electrostatic sensor perimeter detector debugging: 1. After all devices are installed and connected, power-on is enabled for debugging. 2. debugging is performed according to the operation interface on the detector panel. The details are as follows: 3. Power supply light: After the detector is powered on for V, the power supply light will light up. When the AC power is out of the 187V-242V range, the power supply light will flash. 4. Cable light: when

A while ago a friend said they had a project in which there was a process circuit for ESD protection. I couldn't understand it at the time. But then the more I see the more I understand. Now share with you. is also a contribution to high-tech. The right of the regulator diode plays the role of the control voltage, when the regulator diode conduction, will be in its high over a current, the current through the resistance below, will cause the voltage on both sides of the lower resistance rise, th

Electronic products in the CE certification, often need over-radiation interference ( 1. If the low-frequency exceeded, the general is the input power radiation out, to ensure that the use of DC adapter qualified, and then the PCBA board power input processing, usually wire string beads, capacitance to ground and other processing. 2. If it is high-frequency exceeded, the general is a clock (system clock, crystal clock, peripheral chip clock foot) of the multiplier radiation, first determine wh

In the first year as an electronic engineering student, you've been told repeatedly that electrostatic discharge (ESD) is a phenomenon of electrical transients and poses a serious threat to electronic circuitry. The most common reason for electrostatic generation is that the friction between the two different materials causes the charge to accumulate on the friction surface. The use of handheld and wearable

First of all, to solve the computer speakers have a murmur of the idea is to first exclude the speaker is not the problem, and then eliminate the system and sound card driver, equalizer settings, such as software problems, if the above methods are not the cause of the problem, then you can consider is not the motherboard above the audio part of the The bottom line indirectly leads to the occurrence of such situations. First the Speaker power supply a

Failure phenomenon: The small new air series is made of metal shells. When charging, the fuselage has inductance and hemp hand situation very possibly is the metal machine Shell surface Area Bureau's electrostatic charge. Solution: We have been strictly tested, metal fuselage surface electrostatic is less than 0.05mA, far less than the safety regulation of 0.25mA, please feel free to use.

It is very common for computers to appear without sound, but there are many reasons why computers do not sound, and if you want to eliminate them all, sometimes you don't know when to exclude them. But if you're a win7 system, there's an easy way to find out what the problem is. 1 Win7 has a feature that automatically helps you find the problem. Click on the Start menu, Control Panel, in the system and security, choose to find and solve problems; 2 Turn on the hardware and sound, under the

A problem has been encountered, the Bluetooth speaker can search but cannot connect. Reason Analysis: 1, System problems 2, set the error Solution: A, mobile phone or tablet can search the Bluetooth speaker, but after the selection prompts can not connect 1.1 Connect the Bluetooth speaker to other devices to see if there is a problem with the speakers. 1.2 To see if there is a recent installation of Bluetooth software, if so, recommend uninstal

In fact, I do not know what should be called the effect of better, it is called electrostatic effect bar. Effect Chart: 1. Create circular text: 2, the use of circular text lightning and zoom blur effect: 　 　 3, to flatten the layer, apply the gradient effect: 　 　 　 4. Clone bitmap: Note: The zoom blur mentioned in the tutorial is MX2004 version, which involves the Xenofex filter, has been provided many times in the Dream forum downl

Dolby Digital plus for tablets tries to compensate for weak speakerscan software optimizations make the speakers in today's tablets any better? Dolby Digital plus for tablets, shown here in a preliminary form, is a reasonably successful software fix for a pervasive hardware problem-namely, the low-rent speakers in most tablets. Dolby On most smartphones and tablets, sp