v groove weld

, toggle switch, power plug, lm317t chip, 0.1uf electrodeless capacitor, 1uf has pole capacitor, 240ω and 680ω resistor, wire several, hole plate one, potentiometer knob one. These can be easily bought in the electronic market. Fan side I chose two AVC brand, the use of magnetic bearings fan, model 5010, which means that the length is about 50mm, and the height of 10mm. His current is also the largest fan of the same model, nominal 0.25A, measured 0.14A. Step One: Insert the origina

Stm32 Running water lamp Experiment Holiday, finally have time to engage in my STM32 of the small board. Started soldering last night, right? Core Board Welding completed, the first welding 0805 package, QFP64 is the first time. Just started feeling a little afraid, but fortunately, the forum is not the introduction of welding experience. The theory is still relatively solid. Welding Stm32 chip when that is a halo, first put the chip well, and then put on a little rosin, with a soldering iro

I wrote a time ago, "with the PWM drive intelligent car" and "infrared Remote Control Code identification" Two Bowen, respectively, introduced how to use PWM drive DC motor and infrared Remote control code recognition, this time we combine the two, with infrared remote control intelligent car. In the "Infrared Remote Control Code recognition", we use bread plate to build a simple circuit to verify the infrared reception signal, but put on the car is not, the related devices we need to

discharge, and then return to the original appearance. After the boot can enter the CMOS restore its default settings. 7, the hardware conflict is mainly the hard disk and the optical drive between the different memory strips. At this time can be a single check, you can first optical drive power cord and data cable unplug, and then try to only use a single memory for troubleshooting. 8, the motherboard or the video card itself may be a problem. You can check whether there is a capac

(as shown in Figure 2) This point is very important, design must consider 3. Plug-in hole (PTH) hole-to-hole spacing (hole edge to hole edge) cannot be less than: 0.3mm of course, the larger the better (as shown in Figure 3) This point is very important, design must consider 4. Pad to Outline line spacing 0.508mm (20mil) Four Anti-Weld 1. Plug Hole open window, SMD open window side can not be less than 0.1mm (4mil)Five Characters (character Fu des

The SFP is the abbreviation for the small FORM pluggable and can be easily understood as an upgraded version of the Gbic. The SFP module is half the size of the Gbic module, and can be configured with more than one port number on the same panel. The other features of the SFP module are basic and gbic consistent. Some switch vendors call the SFP module a miniaturized GBIC (mini-gbic). The SFP module is half the size of the Gbic module, and can be configured with more than one port number on the s

Q: What are the techniques used in CorelDRAW's styling/shaping/node editing tools? A: A lot of friends often encounter this problem: with CorelDRAW modelling tool to shape a curve, the local line of nodes will be too sharp or blunt, not soft and natural. Then if you convert it to a symmetrical curve, the lines on both ends will deform. Solution: Just double-click on both sides of the node to add a node, and then double hit the knot between the deletion, the line naturally become smooth and smo

solution is to press F12 to the contour line attributes to a round head. The second situation usually appears on some informal fonts, like the left of the "China" two words, we know to use CorelDRAW rectangle, fillet welding to do, and some font manufacturers for the sake of convenience, directly draw a rectangle, draw a circle, with strokes crossed to cover up deficiencies, Just like the group in our CorelDRAW, the result of the engraved output is fragmented. The only way to solve this proble

replace, if the key press the contact is broken normal, the explanation may be due to virtual welding, desoldering or gold chip hole oxidation, can be measured along the printed line step by step, to find fault for re-welding; if the oxidation of metal pores, the oxide layer can be washed clean, And then re-weld firmly, if the metal hole is completely off and cause the circuit breaker, can be additional solder lead to connect. Common faults Three: i

, according to WinDbgThe instructions in the Help cross-weld, you can get a serial line that can be used for debugging. Use the serial cable to connect the two computers, the first with Windows comes with theHyperTerminal tool, choose a good serial port and baud rate connection. If you press the key in HyperTerminal to display the key on another computer's HyperTerminal, it meansThe serial cable is connected successfully. Next, you can use WinDbg to c