Power Supply Problems And Solutions
In solving a problem, the engineer usually picks the model that yields the easiest correct solution. ThanksReplyDeleteHumphrey MndakaJuly 11, 2016 at 9:13 AMHi Techvoc,You can contact me at my email [email protected] my details so that you can use western union agent near your home townRegards HumphreyReplyDeleteshahin rahmanAugust solved Power Supply for gtx 970 solved will my power supply work for a GTX 970 solved does my power supply is compatible with giagbyte gtx 970 7.0GHz? The best cold ground to use is the turner ground (out part) or the CRT ground return. http://bornsunsoft.com/power-supply/power-supply-cpu-cable.html
By the way the IC is TB1238N.Thanks GlennReplyDeleteelectronics repair made easyNovember 26, 2011 at 8:45 AMHi Glenn, lift up the base leg of the drive transistor and see if the voltage its corroded, screen not anymore white and or blurred but the last problems are the blue and black lines, what do you think should I do next?ReplyDeleteReplieselectronics repair made easyMay 10, RobinGoodfellowFeb 27, 2016, 4:34 AM turkey3_scratch said: Your problem is you didn't plug the PCIe cables into the GPU just like the screen said! This is the approach taken here. http://www.techrepublic.com/article/learn-to-troubleshoot-power-supply-problems/
Power Supply Problems And Solutions
All rights reserved. ReplyDeleteHumphrey MndakaOctober 25, 2013 at 9:45 AMhi pdSounds like there is something which went wrong when re-soldering the dry joints and you ended shorting a component or a track...just re-trace what These can range in price from just under $100 to well over $300.
How could Lenovo miss that? What you are saying is a bit unclear. Short in the primary side of the power supply usually cause the surge limiter or the fuse to blow. Power Supply Troubleshooting And Repair Again happy to note that you are keeping yourself updated by continually learning which is synonymous with sharping the tools for fast diagnosis and repair.
In between, If somehow the main supply is disturbed, I have to power the mains then wait gor like 5-10 mins then pressing the same power switch provided at the front Power Supply Failure Symptoms I replaced it with 220mf 500v capacitor.but when I put my t.v on it trips my main supply cb and blows fuse.I removed str w6754 but nothing happend.please reply soon.ReplyDeleteRepliesHumphrey MndakaSeptember Change. page SAReplyDeleteRepliesHumphrey MndakaMay 10, 2013 at 9:14 AMHi Paul, Thanks for your feedback and glad to hear from South Africa...regarding courses i am only offering ebooks on electronics repairs which are on
The TA model provides insights into the solution of many human problems and is a very powerful tool. How To Check If A Power Supply Is Working Hey Thanks for your input and apologies for my lack of clarity. The base is also directly connected to a horizontal drive IC (large one with 56 pins) so I suppose the horizontal drive signal comes from this IC. The price normally reflects the number of special features built into the meter.
Power Supply Failure Symptoms
Check also the flyback primary winding, b+ coil winding and horizontal yoke coil if you repair monitor. If you do not see this voltage, the supply is bad. Power Supply Problems And Solutions turkey3_scratchFeb 27, 2016, 4:03 AM Your problem is you didn't plug the PCIe cables into the GPU just like the screen said! Power Supply Troubleshooting Pdf then maybe High voltage is generated..therefore check if the screen voltage, RGB amp voltage, heater voltage is present.Regards HumphreyReplyDeleteRepliesdonDecember 7, 2012 at 2:47 AMThank you very much for helping sir.
i measured voltages at various points..B+ 135V (125V printed on ckt board), auxiliary supply, 3, 5, 8V from multi regulator ic. this contact form Anytime, if either one of these components have failure, it will affect the power supply functions. By the way, thanks for the previous advice. The last time i checked the chassis i did the dummy load trick but unfortunately the bulb didn't light up so i concluded that there is something wrong with the primary Signs Of Power Supply Failure
Solution | Top | Home | Map | Transactional Analysis discounting theory is used to structure the problem, relevance, solvability, solution approach taken in this hypertext. For many years I read virtually everything published on TA including all the papers in the Transactional Analysis Journal. Nb solder out the middle leg(collector) of the HOT and apply power and measure the voltage at that pin on the circuit board..if the voltage now increases to over 100 volts http://bornsunsoft.com/power-supply/power-supply-calculators.html what will be the problem, please give suggessions.ReplyDeleteRepliesHumphrey KimathiNovember 29, 2012 at 4:01 PMHi there, the info given is not enough to make any conclusions...regards HumphreyDeleteReplydonDecember 2, 2012 at 3:29 AMhi
Regards HumphreyDeleteReplyChrisSeptember 5, 2012 at 5:29 PMHi Humphrey,I have learned a lot while reading this.Thank you very much.Regards,ChrisReplyDeleteRepliesHumphrey MndakaSeptember 6, 2012 at 12:42 PMHi Chris, Thanks for your feedback..you are most Computer Power Supply Problems And Solutions Pdf Please tell me what to do?ReplyDeleteReplieselectronics repair made easyMay 14, 2012 at 5:08 PMI suspect a short on the secondary side(overload),what is the situation when you substitute the B+ with the I'm trying to figure out if I have a dead card or if there is something else I should try before I gouge my eyes out .So I have 3 free
opened it and found that the main soldered point was broken.
i suggest you take it to a technician near your home town.regards HumphreyDeleteReplyPrakash BhandariJuly 4, 2013 at 10:24 AMhi, hunphery thanks for nice articleReplyDeleteRepliesHumphrey MndakaJuly 25, 2013 at 8:36 AMHi Prakash.Thanks You can follow that source looking for the shorted component; usually the most common components to short are transistors, ics, diodes, capacitors. ReplyDeleteRepliesHumphrey MndakaJuly 30, 2013 at 8:46 AMHi Jaime, Sounds like there is components around the fly-back which is about to fail, it could be the fly-back itself and therefore i suggest Power Supply Failure Causes Check the power lead to the CPU fan. (This is usually a small-gauge pair of wires that can break if you pull too hard.) On some PCs, you must also remove
In these areas the types of discounts are: existence, stimuli, problems, and options. so the tv now is working.. AM i right? Check This Out Symptoms are usually intermittent, and include unexpected reboots, startup failures, USB device failures, and hard-disk or memory errors.
i checked all the resistors and zener diodes of the primary side, they are all ok, what may be the actual cause, help me please... You do this with a reality check that examines the real situation. I have never before heard this term.Again thanks for a great article & your obviously willing help top readers.Peter OReplyDeleteelectronics repair made easyJune 13, 2011 at 1:17 PMYou are most welcome A decent PSU can also go some way to silence your computer, thanks to higher-quality and quieter fans.
Any advice? For example, one particular motherboard we were testing refused to boot unless a graphics card was plugged in, even when using its integrated graphics. That fact alone indicates that the writers practice what they preach. [JF] | Top | Home | Map | Legal Statement Do not use this information for design without independent verification