vom multimeter

within the permitted range, but the harmonic content in the output power supply is too large, it also causes frequent host crashes or restarts. In this case, we use a multimeter to test its voltage. It is best to replace an excellent power supply for troubleshooting. Solution: Change the high-power computer power supply. 4. The mains plug of the switch power supply of the host is loose, poor contact, and no plug-in is tight. In this case, most of the

Supply and power protection. However, when the power supply stops, the load is reduced, and the power supply starts again. Because the recovery time after the protection is very short, the performance is that the host restarts automatically. Another case is that the performance of the host's switching power supply is poor. Although the voltage is stable, it is within the permitted range, but the harmonic content in the output power supply is too large, it also causes frequent host crashes or re

a conflict. , 5th port traffic This exception caused us to note that the port only connects to the only device on the server. How can this cause a conflict? We switch to the vswitch list and further check the port information.) We found that the connection speed is 10 Mb/s and half duplex, And the vswitch supports full duplex connection, is it possible that the server and switch port duplex do not match? After obtaining the user's consent, we disconnected the server from the switch and connect

As a cost-effective network device, terminal servers have a broad market in China. It can connect many asynchronous devices and only occupy one network node, thus reducing the collision rate on the Ethernet and improving the communication performance of the network. The terminal server can also be used as a printing server or an asynchronous router. When a problem occurs on the terminal server, it will have a great impact on many users. Next I will introduce two problems and solutions for the JE

supply is poor, the impact of interference signals from hard drives, optical drives, and CPU fans cannot be filtered out. Reducing the power cord of the IDE cable and the CPU fan can reduce the impact of the corresponding equipment. You can also try another power supply. 2. The connection between the microphone and the sound card does not use a shielded line or the screen line is not properly grounded. noise may occur when high-frequency interference signals are input by the microphone string.

collect the signals of each sensor, such as temperature and humidity, pressure, voltage, control signal generator chip to produce a specified frequency of sine wave, square wave and triangular waves, acquisition of high-frequency signal and send data through the network to the pc,pc end of the LabVIEW program responsible for processing and display. In order to operate locally, such as signal generators and multimeter functions, the wince has done a s

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: Electrostatic sensor perimeter detector does not work or no switch signal out

the connectivity of the end-to-end is not affected when such a fault occurs, the common multimeter cannot be used to check the cause of the fault. Only a dedicated cable tester can be used to check the cause. 2) cable transmission channel Authentication Test The certification test does not improve the channel performance of the integrated wiring, but only confirms whether the installed cables, related connection hardware and their processes meet the

proper length of the network cable is required. First, prepare your weapons: sharp mouth pliers, diagonal pliers, wrenches, and multimeter. ◆ First, place the annular screws, metal rings, and photo and skin washers in the locking BNC connector assembly on the end of the RG58 A/U cable in sequence; ◆ Remove A small section of RG58 A/U coaxial cable outer package (about 1-1.2), expose some of the Guide power grids, and unplug the guidance power grids;

switch runs normally, a false alarm can be generated for the DDBC secondary power board. First, use a multimeter to measure the bus bar terminal on the DCB1 backplane of the rack. The output voltage is normal. At this time, the DDBC board reset key RT two needle seat) transient, the occurrence of a short harsh scream after the light off the bell. Transient RT initializes the DDBC board to eliminate error alarms. If an alarm is reported after the abov

point to the end point of the groove. If the width of the groove exceeds 80mm, the length of the two groove is calculated. 3. Wiring 1. confirm that the cables are smooth: 1) cable and telephone line tests: Separate the crystal head and use the network tester to test the disconnection; 2) cable TV line, audio/video line, and audio line test: Use A multimeter to test the disconnection; 3> other cables: Use the corresponding professional instruments to

OFF3 ENUM 1 Voip Path OFF4 INT 2 Speaker Playback Volume 24 245 INT 2 Headphone Playback Volume 24 246 ENUM 1 Modem Input Enable on#But the horn was still ringing, stating that it had not been closed. Check the schematic "control pin on the power amplifier" on which GPIO is followed. According to the manual, only to Gpio2_d7 can output low level can achieve the speaker's closure , using a multimeter measured after inserting the headset, the pin is st

Based on several purposes1, battery is not good, mobile phone parts intact.2. Long-time navigation required3. No SIM card requiredTurn the obsolete phone into a portable navigation machine.Basic ideas:Disassemble the battery, obtain the circuit protection Board, reduce the voltage to 4.2v, the current 1 A, plus the capacitor to regulate the role of the switch, can do the battery (external) and external power supply synchronous use, external power is compatible with 18650 and on-board power, cons

on temperature characteristic of thermistor(22) Design of semiconductor thermometer(23) Rectification Filter Circuit experiment(24) Design multimeter Experiment(25) Measurement of the magneto-resistance characteristics of indium antimony flake(26) refractive index and film thickness measured by ellipsometry(27) Zeeman effect experiment(28) Raman spectroscopy experiment(29) Characteristic measurement of solar cells(30) Light emphasis method for measur

signal?A: "comes with the SPI peripheral, when the data is sent to the clock output." ”(4) XC866 MBC level OCDs mode Helpq:xc866 Development Board. Using Ulink through the OCDs interface debugging, the book says: if (mbc,tms,p0.0) = (0,1,1), will go into the OCDS mode for program code debugging. First initialize the OCDs, then jump to the program memory address 0000H, execute flash or ROM memory in the user code, start debugging. In OCDs mode, the low 64 bytes (address 00h-3fh) of the internal

input voltage of 0V, op amp will be more than 0V output, and if the resistance is small, you need a little more than 0V input to get 0V output. For this application, the R3 should be larger, as this will keep the input and output curves linear, and only subtract the ADC readings from the 0V input to get accurate results.Part of the test picture:The data is basically accurate. The actual display effect of the digital tube is better than the picture.The multi