Timeline for Troubleshooting PCB of an ATX power supply?
Current License: CC BY-SA 3.0
13 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 13, 2017 at 12:32 | history | edited | CommunityBot |
replaced http://electronics.stackexchange.com/ with https://electronics.stackexchange.com/
|
|
| Jun 20, 2015 at 16:52 | comment | added | Mahendra Gunawardena | Some thing similar to this might be helpful. electronics.stackexchange.com/questions/69666/… and also check this link too. electronics.stackexchange.com/questions/5577/fixing-an-atx-psu | |
| Jun 20, 2015 at 16:46 | comment | added | Mahendra Gunawardena | @FiazMR, Glad that the post has helped you. You have got passed the step 1 & 2. You are now at step 3. We will need more infomation about the power supply understand the failure. Details of Power supply, Model, schematic. If you opened up the power supply then pictures of the internal components. Bottom line is part of the output stage of the power supply is not fully functioning. Do little bit me research and post a separate question with all the details. BTW thank you for accepting the answer. | |
| Jun 20, 2015 at 14:24 | comment | added | techloris_109 | Have one doubt regarding your above answer troubleshooting the PCB, two of the three things you mentioned were, firstly to check whether supply is reaching and its being passed on. Secondly to provide input signals to appropriate stages and check if they are processed correctly. So if the first thing i.e. supply is not passed on to a particular successive stage, and to find out whether is there any fault with that stage in not receiving supply and processing, do i have to power that stage with a required signal from a function generator or something and see if it processing?Is that the way | |
| Jun 20, 2015 at 14:21 | comment | added | techloris_109 | thanks for the guidance. Got a good start in troubleshooting and learnt well about ATX with your references. After reading your answer tried these out on my ATX, powered it up, got a 5V reading b/w POWER_GOOD and STAND_BY pins, then jumped PS_ON# with COM pins and at that time heard a "ticking" sound probably like the turning ON of a relay. Took readings across other pins but zero indication on my voltmeter. | |
| Jun 20, 2015 at 12:46 | vote | accept | techloris_109 | ||
| Jun 19, 2015 at 9:29 | history | edited | Mahendra Gunawardena | CC BY-SA 3.0 |
added 1955 characters in body
|
| Jun 19, 2015 at 7:09 | comment | added | techloris_109 | on your suggestion updated the question with certain add-ons that was necessary to highlight my main problem. Thought that repairing PCB involved a common method, but when many asked me for the schematic and the main fault, felt that i need to be more specific with the circuit and the problem, and now I understood that we cant repair PCB just like that. thanks as im new here | |
| Jun 18, 2015 at 13:35 | comment | added | techloris_109 | yes ensuring that supply reaches the parts is a very first thing to be made. the circuit is an ATX power supply. i did check for the initial part of receiving the supply, that works well. but i got stopped then, when capacitors and diodes takes the rest of the circuit. probably thats the place where i came up to the idea of testing components. because if they work well they carry supply forward isn`t the way | |
| Jun 18, 2015 at 13:02 | vote | accept | techloris_109 | ||
| Jun 18, 2015 at 13:11 | |||||
| Jun 18, 2015 at 11:01 | history | edited | Mahendra Gunawardena | CC BY-SA 3.0 |
added 1 character in body
|
| Jun 18, 2015 at 10:51 | history | edited | Mahendra Gunawardena | CC BY-SA 3.0 |
added 158 characters in body
|
| Jun 18, 2015 at 10:38 | history | answered | Mahendra Gunawardena | CC BY-SA 3.0 |