1 00:00:01,000 --> 00:00:05,650 Now you need to list probable faulty functions. 2 00:00:05,870 --> 00:00:14,710 You need to divide the equipment into functional areas in order to save troubleshooting steps use functional 3 00:00:14,710 --> 00:00:23,510 block diagrams or in short FP PD to show the functional areas of an equipment as well. 4 00:00:23,540 --> 00:00:30,690 The detail functions levels of inputs and outputs parameter for voltage and current. 5 00:00:31,160 --> 00:00:34,800 Making that diagram will save you a lot of time. 6 00:00:34,850 --> 00:00:39,950 Make sure to stay the input and the expected output for each block. 7 00:00:40,070 --> 00:00:41,900 Then start measuring 8 00:00:46,320 --> 00:00:46,830 next. 9 00:00:46,830 --> 00:00:50,910 You need to localize the faulty function. 10 00:00:50,910 --> 00:00:57,330 Now that you have a block diagram with all the required functions you need to start isolating the functional 11 00:00:57,390 --> 00:01:05,310 area that has an indication of malfunction knowledge skill and probe artist equipment should now be 12 00:01:05,310 --> 00:01:12,630 used to isolate the fault functional area after doing this. 13 00:01:12,630 --> 00:01:21,060 Now you have a clear idea what are the areas that have fault or problem and what are the areas that 14 00:01:21,060 --> 00:01:28,340 are functioning properly localizing that trouble of the circuit. 15 00:01:28,340 --> 00:01:36,210 First you need to isolate the circuit within the faulty unit more extensive troubleshooting is now required 16 00:01:36,210 --> 00:01:45,390 within the identified fault unit look for improper voltages and provide waveforms using a of scope obvious 17 00:01:45,390 --> 00:01:55,140 component of our heating all components that are blowing out so use your I use your eyes to smell and 18 00:01:55,140 --> 00:01:56,810 use your hearing. 19 00:01:56,940 --> 00:02:03,220 Use your ability to identify problems from their physical appearance. 20 00:02:03,600 --> 00:02:09,630 If nothing is shown you need to start using your multimeter oscilloscope to solve this thing. 21 00:02:09,660 --> 00:02:16,430 Each component as we explained previously isolate the defective circuit the group 22 00:02:19,100 --> 00:02:24,500 after this union to do failure analysis. 23 00:02:24,500 --> 00:02:31,740 Step 1 and 2 were used to recognize verify and obtain descriptive information. 24 00:02:31,760 --> 00:02:40,650 Step 3 and our process allowed you to make a logical selection of the logical faulty unit step 4 provided 25 00:02:40,650 --> 00:02:46,200 for symbol input output test and localize the faulty functions. 26 00:02:46,230 --> 00:02:51,930 Still 5 localized default to the circuit within the faulty unit. 27 00:02:51,930 --> 00:02:59,550 Step 6 will involve the actual replacement or repair or faulty circuit components. 28 00:02:59,550 --> 00:03:08,460 Now that you have a clear idea what's the circuit that has the problem you can replace any faulty component 29 00:03:08,520 --> 00:03:17,340 inside it or you can replace the whole board depending on the type of this plastic particular equipment. 30 00:03:17,940 --> 00:03:18,480 This is it. 31 00:03:18,840 --> 00:03:27,480 If you follow these four or these six steps you'll be able to make a diagram for your equipment or your 32 00:03:27,480 --> 00:03:35,370 board with inputs and outputs and you'll be able to separate each of these functions into a separated 33 00:03:35,370 --> 00:03:36,690 block diagram. 34 00:03:36,960 --> 00:03:44,760 And finally you'll be able to identify the board that has the problem and replace it or fix it depending 35 00:03:44,850 --> 00:03:47,100 on your skills. 36 00:03:47,140 --> 00:03:49,190 That's it for the failure annexes. 37 00:03:49,480 --> 00:03:57,280 If you follow these steps one by one you should be at the end of Step Six in the process of replacing 38 00:03:57,580 --> 00:03:59,420 or making the device work. 39 00:04:00,440 --> 00:04:01,220 Thanks for watching. 40 00:04:01,220 --> 00:04:03,680 This is Usha from education an engineering team.