Burst Capacitor And Dry Solder Found In FOXIN Computer ATX MODEL FPS500S
This is one among the five Computer SMPS brought from the hospital for repair. As the cleaning was already done by the staff there, I straightaway investigated the reasons for its failure. Found a cap bulgy and dry solders all around. A couple of components were found to be rusted too, which cleared up on cleaning with IPA.
The SMPS fan did not rotate even when I tried hard. It was stuck like cemented. Any amount of lubrication also did not free it necessitating a replacement.
I checked the two tank capacitors and found the values were way out. So, replaced all the electrolytic capacitors on the board, before I did the complete retouch of the board with fresh solder.
The SMPS was found to be working very well on test.
I am sure some of you at least might wonder why am I doing servicing these SMPS, as new replacements were available at economic rates. Well, in this way, I am not only saving a lot of money for the hospital, but also preventing large pile up of E-Waste. The cost of repair is confined only to the cost of components as my service is free to this hospital.
No need to say that mission got accomplished again and satisfaction found its way very easily to its collection place.
To conclude the article, here is a picture of all the components replaced in this SMPS ATX. The fan was retrieved from an old discarded ‘beyond repair’ SMPS (control IC not available for replacement).
This article was prepared for you by Parasuraman Subramanian from India. He is 72 years old and has more than 30 years’ experience in handling antique equipment like Valve Radio, Amps, Reel Tape Recorders and currently studying latest tech-classes conducted by Kerala State Electronics Technicians’ Association. He has done graduation in BBA degree, private diploma in Radio Engineering and retired as MD of a USA company. Presently working as Consultant to Hospital and other institutions.
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You may check on his previous article on Sony DVD Player Repair