1 00:00:18,882 --> 00:00:20,861 The complete Main Switching 2 00:00:20,895 --> 00:00:27,367 The complete Main Switching, which is actually installed on switching number two, is the main part of the switching device. 3 00:00:27,392 --> 00:00:37,500 On this board, we have several modules including LAN-GPS, Wifi Module, Micro Module, Command Module, Fan Controller Module and Power Supply (PS) Module. 4 00:00:37,525 --> 00:00:42,679 In some cases, we face some problems where we have of replace one of these modules. 5 00:00:42,704 --> 00:00:46,039 Here we are going to explain how to replace a module. 6 00:00:46,064 --> 00:00:51,414 If we are facing a Wi-Fi connection issue or more specifically we cannot connect to the device using the 7 00:00:51,439 --> 00:00:58,679 Wi-Fi and we have performed all tests and did not get any result, we need to replace the Wi-Fi module. 8 00:00:58,704 --> 00:01:01,976 When we substitute the Main Switching of two devices, 9 00:01:02,009 --> 00:01:07,312 we leave the Wi-Fi module as it is so that we do not have to reset the Wi-Fi settings. 10 00:01:07,337 --> 00:01:10,078 This part is what is meant by Wi-Fi module. 11 00:01:10,103 --> 00:01:16,937 This means that if we have a problem with the Wi-Fi and we want to swap the Wi-Fi of the two devices, 12 00:01:16,962 --> 00:01:22,312 we open this screw and swap only this module. This module is called Wi-Fi. 13 00:01:22,279 --> 00:01:24,843 If there is a problem with the GPS module, 14 00:01:24,868 --> 00:01:34,132 in other words if we are facing a problem with connecting to the GPS or in LAN connection and our conclusion is that the LAN-GPS module is not functioning properly, 15 00:01:34,157 --> 00:01:35,468 we need to swap this module. 16 00:01:35,493 --> 00:01:43,116 To swap this module, first we need to open this spacer, then open this screw and then the LAN-GPS module is released. 17 00:01:43,141 --> 00:01:48,155 So, this is the Wi-Fi module and this is the LAN-GPS module. 18 00:01:49,110 --> 00:01:53,920 The micro module is the heart of the device. When we are performing different tests, 19 00:01:53,945 --> 00:02:02,694 there are some issues where we conclude that maybe the microprocessor of the device is not functioning properly and we need to swap it. 20 00:02:02,719 --> 00:02:07,467 There is no screw on the micro and it is connected to the board only by some pins. 21 00:02:07,492 --> 00:02:13,264 To detach the module, we release it from one side and then completely release it from the other side. 22 00:02:13,289 --> 00:02:20,053 This is how the micro module is detached. Reinstalling this module is as easy as it was to detach it. 23 00:02:20,078 --> 00:02:29,584 There are three pins at the bottom and five pins at the top, first we need to adjust them and then the pins with a higher number are installed. 24 00:02:29,827 --> 00:02:32,560 This is how this module is installed. 25 00:02:32,712 --> 00:02:37,529 Next is the “command” module in which we have the Overcurrent error of board number two. 26 00:02:37,554 --> 00:02:45,842 Whenever we face the Overcurrent error of the board number two, first we replace the “command” of the complete Main Switching side with the other side. 27 00:02:45,867 --> 00:02:51,217 The screw is opened like this and the module is detached and replaced with the command of the other side. 28 00:02:51,201 --> 00:02:59,132 After the replacement, we turn the device on using a series lamp. Then connect the relays of the device and connect to the device. 29 00:02:59,164 --> 00:03:06,093 If the Overcurrent error of board number two is eliminated, this means that the problem was with this “command” and it must be corrected. 30 00:03:06,118 --> 00:03:12,023 If the Overcurrent error of board two still remains, we need to examine the other parts (which will be explained later). 31 00:03:12,048 --> 00:03:18,093 Fan controller module, in fact there are four fans in the device, two fans in the back panel, 32 00:03:18,118 --> 00:03:24,038 one fan on the heat sink and another one on the amplifier module which will be explained later. 33 00:03:24,063 --> 00:03:31,288 If any of these fans be it the heat sink fan or the fan on the back panel which is on the same side as the switching is not working, 34 00:03:31,313 --> 00:03:38,757 and there is no problem with the fan, then our conclusion is that the fan controller module is causing the problem and it needs to be replaced. 35 00:03:38,782 --> 00:03:45,640 The module is opened like this and then swapped with the other fan controller module and the problem is solved. 36 00:03:45,665 --> 00:03:50,999 PS module, in fact the 12 volt power of the modules is provided from here. 37 00:03:51,024 --> 00:03:54,749 When the device is turned on and electricity enter the switching, 38 00:03:54,774 --> 00:04:04,389 there is no problem but the fans are not working which means that power is not reaching the micro and it has no reaction and only the power button is turning on. 39 00:04:04,414 --> 00:04:09,889 In such cases, the problem may be with the PS module and it needs to be replaced. 40 00:04:09,914 --> 00:04:16,498 This module has four screws, two at the top side and two at the bottom side that are opened like this. 41 00:04:16,523 --> 00:04:26,717 If the problem is caused by this module or in other words you do not have the 12-volt power, a test must be performed to see if the problem is with the upper Minmax or the lower one. 42 00:04:26,746 --> 00:04:29,621 Then, the faulty one is replaced with the spare module. 43 00:04:29,646 --> 00:04:38,269 This is one of the modules that are located on the Main switching and its function, how to move it and how to replace it have been already explained. 44 00:04:38,434 --> 00:04:47,425 Another point about PS module is that this module provides our switching set with two 12 volts DC and 5 volts DC Minmaxes. 45 00:04:47,450 --> 00:04:54,629 If we want to test to see whether this module is providing us with the 12 volt Minmax or the 5 volt Minmax, 46 00:04:54,659 --> 00:04:59,050 , there is a set of Pin Headers using which we can check these values. 47 00:04:59,075 --> 00:05:11,620 These six upper Pin Header are 12 volts positive and these four lower pins are 5 volts positive and these eight pins in the middle with GND phrase written on them. 48 00:05:11,645 --> 00:05:27,026 This means that between measuring the voltage between GND and 12 volt we can make sure that the 12 volts is healthy and between GND and 5 volts we can check to see if the circuit is provided with the 5 volt voltage or not. 49 00:05:27,051 --> 00:05:34,387 If we do not have any of these, one of the 12 volt or 5 volt Minmaxes is definitely damaged.