{"product_id":"probeasa5-asa-vi-curve-tester-circuit-board-fault-repair-and-detection-device-with-netlist-function","title":"ProbeASA5 ASA (VI) Curve Tester Circuit Board Fault Repair and Detection Device with Netlist Function","description":"\u003cp\u003e\u003cb\u003eNetlist\u003c\/b\u003e\u003cbr\u003ea. Node netlist: The pins of components on a circuit board that are short circuited to each other;\u003cbr\u003eb. Circuit board netlist: a netlist of all nodes on a circuit board.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eNetlist during Maintenance Testing:\u003c\/b\u003e\u003cbr\u003e- In the Huineng system, when there is a circuit board netlist, for each selected device pin ready for testing (left mouse click), the node netlist is given in two forms:\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/102892\/102892-01.jpg\"\u003e\u003cbr\u003ea. Image format: Refer to the image on the right. Using the pin as the center, display all pins of the node with flying wires;\u003cbr\u003eb. List format: In the three lists on the left side of the figure above (see figure below)\u003cbr\u003e  Code column: a list of all components on the circuit board;\u003cbr\u003e  Empty pin column: device pins that have not been added to the node netlist;\u003cbr\u003e  Node column: All component pins in the current node.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/102892\/102892-02.jpg\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eThe Significance of Netlist in Maintenance:\u003c\/b\u003e\u003cbr\u003ea. Any test on the circuit board can only locate the fault to the node. When testing a certain pin and finding a problem with the curve or voltage, the problem may not necessarily be on the tested pin. The components (pins) associated with this pin may also be possible. With a node netlist, it is possible to quickly find those components (pins), greatly improving the speed of detecting faulty components;\u003cbr\u003eb. The problem of wire breakage, especially in multi-layer boards, currently has no good solution and is basically a fault that cannot be repaired. With the support of component lists and node netlists, there is a possibility of repair; It may even repair circuit boards that have been incorrectly repaired;\u003cbr\u003ec. With the support of component lists and node netlists, it is much easier to draw circuit board schematics.\u003cbr\u003e\u003cb\u003e\u003cbr\u003eEstablishing a Netlist Supported by ASA Curve Library\u003c\/b\u003e\u003cbr\u003e1. Curve library: First, use a good circuit board to extract the ASA curves of all component pins to ground and store them in the curve library of the circuit board. This step is called building a curve library.\u003cbr\u003e2. Node netlist: The following are the steps to create a node netlist:\u003cbr\u003ea. Click on a pin with the mouse, and if the netlist is displayed, it means that the node where the pin is located has already been processed and does not need to be processed again. Click on another pin until you find a pin without a netlist;\u003cbr\u003eb. Clicking the search node netlist button will automatically search for a netlist called the \"search netlist\" for that node. The \"search netlist\" includes the \"actual netlist\", or in other words, the pins in the actual netlist will appear in the search netlist (with very few exceptions, as explained later), and there may also be extra pins. After deleting these extra pins, the actual netlist will be obtained.\u003cbr\u003ec. Using a multimeter or the Beep function provided here (similar to a multimeter, with the advantage that the on\/off threshold can be set between approximately 1-50 ohms), follow the prompts on the netlist to confirm each connection on the circuit board. Specifically, it is to test between the two device pins connected to each flying wire to confirm whether they are truly connected (short circuited).\u003cbr\u003ea) If there is no connection, it needs to be deleted. Just click on the pin you want to delete with the mouse, then press the \"Delete\" key to delete the pin from the list and flywire, and refresh the display;\u003cbr\u003eb) There is a connection. Just press the TAB key once, and a check mark will appear in front of the pin to indicate confirmation. See the figure below.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/102892\/102892-03.jpg\"\u003e\u003cbr\u003e\u003cbr\u003eEach connection represented by a fly line in the search netlist must be tested and confirmed. After all confirmations are completed, this node is considered processed. Go back to a. and handle the next node.\u003cbr\u003e3. Circuit board netlist: Once a node is processed, all pins of that node will no longer participate in the search, which is equivalent to being taken away from the board. It can also be said that the board has become smaller, and the testing workload for connecting is correspondingly reduced. The speed of processing the remaining node netlist will be faster until all nodes are processed.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eEstablish a Netlist without ASA Curve Library\u003c\/b\u003e\u003cbr\u003e- For situations where there is no curve library and a multimeter or runner is used to build a netlist, the netlist function can also provide great help. In this case, the netlist function can record and manage data in the form of images, displaying completed work and reminding you of unfinished work, effectively improving work efficiency.\u003cbr\u003e- Of course, to use the netlist function, the first step is to input the image of the circuit board and all the components on the circuit board into the system. With proficiency, it takes about several tens of minutes to work on a medium-sized circuit board. Secondly, all connection relationships must be determined using a multimeter and a wire runner. Here is a simple example to briefly illustrate.\u003cbr\u003e1. Add pins to a node netlist: For example, we have confirmed that the upper pins of the two devices on the left in the following figure are connected. Left click on the upper pin of device 1 (or 2), press the \"Enter\" key, and move the mouse. At this point, a constantly flashing line segment appears from the pin to the current position of the mouse, and the endpoint moves with the mouse cursor. See the following figure:\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/102892\/102892-04.jpg\"\u003e\u003cbr\u003e\u003cbr\u003eNote that the 'Node' list is empty at this time. Click on the top pin of device 2 with the mouse to complete the addition. At this point, a new flashing line appears, and you can continue to add the next one. See the following figure:\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/102892\/102892-05.jpg\"\u003e\u003cbr\u003e\u003cbr\u003eIf you no longer want to add, press the ESC key to exit the add state, and the empty pin and node list will be updated accordingly. See the following figure:\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/102892\/102892-06.jpg\"\u003e\u003cbr\u003e\u003cbr\u003eRepeat the operation like this. Every time a pin is clicked, all the pins that have been added and are connected to that pin will be displayed in the form of a list (in the \"node\" list) and flyby.\u003cbr\u003eThe pins that have already entered the node will not appear in the \"empty pin\" list. So, as it continues to be added, the list gradually becomes smaller until it becomes empty, indicating that all pins have been processed.\u003cbr\u003e\u003cbr\u003e2. Merge node netlist \"When adding a pin in the previous step, if the pin to be added is already in a node netlist, it will automatically prompt as follows. Click\" Yes \"to perform the merge.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/102892\/102892-07.jpg\"\u003e\u003cbr\u003e\u003cbr\u003e3. Delete pins: As mentioned earlier. Click on the pin to be deleted and select it, then press the Delete key.\u003cbr\u003e4. Delete node netlist: Click on any pin in the node, and then click the \"Delete\" node button.\u003cbr\u003e\u003cbr\u003eThe Beep function is similar to the beep mode of a multimeter and is mainly used for the \"run line\" function in common maintenance. When using, connect the red probe to the O1 terminal of port A of the tester, and connect the black probe and the tester in common ground.\u003cbr\u003eThere are several differences between the Beep function and the beep mode of a regular multimeter, which can be summarized as follows:\u003cbr\u003e1. The beep threshold can be set within 30 ohms, which is not supported by a regular multimeter.\u003cbr\u003e2. During testing, the software can emit different tones based on the ratio between the measured resistance value and the threshold value. For example, if the threshold value is set to 10 ohms, the tone will become darker as the measured resistance value approaches 10 ohms, such as 9 ohms; When the measured resistance value is further away from the threshold, such as around 1 ohm, the tone becomes sharper and brighter.\u003cbr\u003e3. When the measured resistance value is greater than the set threshold and less than 100 ohms, no sound is emitted, but the actual resistance value can be indicated.\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x VI Curve Tester\u003c\/p\u003e","brand":"ProbeASA","offers":[{"title":"Default Title","offer_id":41114153844785,"sku":"102892","price":1421.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/102892-1.jpg?v=1783503945","url":"https:\/\/www.thanksbuyer.com\/fr\/products\/probeasa5-asa-vi-curve-tester-circuit-board-fault-repair-and-detection-device-with-netlist-function","provider":"Thanksbuyer Online,SDR Radio, Testers and Measurement devices, Astronomy products,  Audio Amplifer and Decoders","version":"1.0","type":"link"}