vom multimeter

exposed is the same as the micro USB cable that was previously processed. If the same words just by color matching to join together, if the unfortunate difference, then according to the above list of solder joints cut before cutting the male ratio, if you have a multimeter on hand, you can actually test it.Splicing Data CableCarefully stitch the two data lines together and make sure the heat shrink tube is on the data line before stitching. Because l

Today little X teaches you to use your smartphone to do a universal remote need to prepare some materials: 1: An infrared emitter with 38K carrier, (wavelength 940nm) Standard mode: 30khz~60khz; Remote mode: 38K. The best use of our universal Remote control brand brand 38k+-5kb are applicable to normal 38k+-3kbpart of the cottage remote control carrier maximum toMax 38k±20k, our remote control will not be able to use, so our universal remote control only 85% of the infrared device can be used wi

) User Board base or backboard faultAfter judging whether the user board is normal, remove the corresponding cable plug-in from the cabinet backboard and use a table to test the socket on the backboard. If the output voltage is much lower than 48 V, it indicates that the fault occurred on the base or backboard of the user board. The solution is to disable this port for a long time and disable it temporarily. DEL-DSSU: OFFTYPE = L, STNO = 2000; 4) damaged cable connections or plug-insThe user cab

mode does not match, check whether the computer and switch ports have been set as automatic protocols. Figure 2: The NetTool network multimeter is used to test the connection status of network devices at both ends online to obtain the level, transmission line pair, duplex, and adaptive rate. Step 2: Network Traffic Monitoring Use online tools to check whether the computer has successfully applied to the DHCP server and received the

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, as long as the gpio2_d7 can output low level can achieve the speaker off , using a multimeter measured in the headset after inserting the pin is still high, view code changes recorded in the previous version of the

Collect collected information from the Internet: How can I determine whether the crystal oscillator is working properly? 1. There are many judgment methods. It is most direct to view the waveform with an oscilloscope. You can also test the voltage with the voltage file of a digital multimeter. Because the duty cycle of the crystal oscillator waveform is 50%, therefore, the average voltage measured is about 1/2 VCC. For 51 single-chip microcomputer, wh

perform customs clearance for tomb shadows? -------------------------------------------------------------------------------- Hardware0266 have you used a light pen?0267... have you made a light pen?You used ......0268... is the telex typewriter?0269... tape?0270... OK?0271... optical disk library?0272... rack?You have assembled ......0273... Is PC compatible?0274... is apple compatible?You know how to use ......0275... is the semiconductor oscillator?0276... Tables Table?0277... counter?0278...

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 them will occur on DIY machines. the power cord of the ho

static electricity on the body from penetrating the CPU and causing damage. Another scientific method is to use a multimeter with a temperature sensor to detect the temperature of the processor. The appropriate temperature varies depending on the type and model of the processor. But in general, the temperature should be less than 110 degrees. If you find that the processor test is higher than this temperature, check whether the fan in the chassis is

, there is also the welding hole, sometimes the welding hole is too small, we often use things to drill, after drilling, cracks may occur between the Solder Pad and the circuit, leading to Broken Circuit. This should be checked carefully. Sometimes the Broken Circuit is only a small crack, so you cannot pay attention to it. Check whether the connection between each node and the circuit is normal with the Ohm of the multimeter. 4. Virtual soldering. Th

A low-ripple Linear Power Supply previously used in instrument products is suitable for product design that is not the first consideration. (Original file name: p5.png) Because of the product volume and high requirements on power supply stability, I added a pre-filter circuit before the conventional linear voltage regulator circuit, Q1, R14, C11 constitute a Capacitor Multiplier, it is equivalent to the capacitance filtering effect of 2 Farah. In the actual version of the test Q1, the collecto

there is a camera controller in the middle. The following mainly analyzes software interfaces. 3. hardware interface The camera's hardware schematic is as follows: After obtaining the schematic diagram, we need to pay attention to the two pins 1 and 2 connected to i2c_sda1 and i2c_scl1 respectively. This shows that the camera can be configured through I2C controller 1. In addition, when debugging the camera, you can use an oscilloscope to measure the waveform based on this schematic to verify

the mixed gas burn too early, so that the crankshaft and connecting rod are severely impacted, resulting in parking or damage to the device. Heat plug-in on the top of the engine cylinder is used to ignite the mixture. Before installation, you can use a multimeter or the prescribed voltage to check whether the current is good. During installation, compress the engine cylinder to prevent air leakage. The engine cylinder is covered with many heat sink

as S-video.Effect:The display effect is blurred, and the audio effect is normal.Summary:The display effect is unacceptable and is not recommended.Iv. Connection Method VGA Note: "home theater. LCD TV. common interfaces (1)" describes VGA interfaces. Method:The audio interface is on the right of the VGA interface.Select PC as the TV Signal SourceEffect:The display is completely normal, with slight audio noisesSummary:When Samsung and many other brand LCD TVs are connected to a computer through V

CableIQ™Qualification tester. The CableIQ tester checks the cable bandwidth to ensure support for VoIP requirements. This prevents shutdown and repair failures when the VoIP device is installed on a cable with insufficient bandwidth. The Toolbox also contains NetTool with VoIP test options.™Series II online network multimeter. NetTool allows users to deeply observe VoIP calls by installing NetTool between IP phones and networks. Users now can quickly

, and will separately require 485 manufacturers to install their fixed performance parameters for production and quality testing, therefore, it has good compatibility with its access control equipment. do not purchase the 485 converter from a brand manufacturer at a low cost. Strictly follow the construction specifications of the 485 bus to prevent any luck. If the line load is too long, we should adopt an active and scientific reserved solution.If the communication distance is too long, we reco

complex: what interface on the board, chip, main device, circuit, it is necessary to test what, especially in the case of the Board normal operation of the power/voltage/ripple/timing, business interface of the eye Diagram/template, the internal data bus signal integrity and timing (such as Mii, RGMII, XAUI, PCIE,PCM Bus, Telecom bus, SERDES, UART, etc.), CPU subsystem (such as clock, reset, Sdram/ddr,flash interface).A good hardware engineer, whether it is a document or a report is a clear, wh

Http://www.elecfans.com/dianzichangshi/200805269451.htmlHigh-impedance state: is neither higher nor low, if the high impedance state and then input the next level of the circuit, no impact on the lower circuit, and not the same, if using a multimeter is likely to be high level also may be low level, with the things that follow it fixed.Tri-State output gate Circuit ( TS(three-state output gate) Doorthe schematic diagram of the three-state gate output