Just Patching Up Dry Solder Revived A Dead ZEBRONICS Computer PC SMPS
This SMPS Model No. Zebronics ZEB-N450W was brought to me in dead condition. After opening and cleaning the inside thoroughly using blower and various brushes, the complaint was confirmed to be true by applying power and shorting the green wire to ground. On inspection, a lot of dry solders were seen. This was patched up very well. Checked for any defective or burst components on the board and did not find any.
As I was not having the other tools like Ring Tester, ESR checker etc. in the hospital, where I carried out the repair, I powered the unit after doing the dry solder patch up and lubricating the fan. It worked very well, adding a quick satisfaction to its collection bag! Here are a few pictures:
This article was prepared for you by Parasuraman Subramanian from India. He is 71 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 repair article below:
https://jestineyong.com/pc-atx-smps-saved-from-dump-with-almost-no-cost-for-repairs/
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Tayo
March 27, 2021 at 3:47 pm
Parasuraman, are you finding your client's dry solder issue being caused by the age of the device or the manufacturing practices?
Parasuraman S
March 28, 2021 at 12:42 am
Heat produced and age issues. Many thanks for your comments!
Albert van Bemmelen
March 27, 2021 at 6:21 pm
Fixing a 450 Watt PC power supply without any of the usual tools is normally not easy or possible but it can happen like you showed here. A few days ago my portable DVD player that needs a 12V 1.5A Provision power adapter - model DVP007T02 - input voltage of 110 to 240 VAC, suddenly no longer worked. Completely unexpected I was able to fix the adapter by just patching up all solder, and opening and afterwards closing the black housing was very easy. It was so easy that I didn't make a repair article of it.
Parasuraman S
March 28, 2021 at 12:43 am
Yes, very true! Many thanks for your comments!
Anwar Y Shiekh
March 27, 2021 at 10:39 pm
It is amazing how many repairs are fixing the solder or replacing capacitors or oiling a fan.
I had a brand new car battery charger whose fan stopped spinning; while still under warrantee it was so much easier to just oil the fan.
Also a brand new car battery load tester with one diagnostic light no longer working; again it was so much easier to just open it up and fix the soldering.
Parasuraman S
March 28, 2021 at 12:44 am
Yes, it happens always! Many thanks for your comments!
Yogesh Panchal
March 31, 2021 at 5:03 pm
Quick fix! good job Sir.
Parasuraman S
April 1, 2021 at 11:03 pm
Many thanks!
Humberto
April 1, 2021 at 11:54 pm
Anyway the SMPS was fixed and it´s working fine in the PC nowadays.
Humberto
April 1, 2021 at 11:55 pm
I forgat saying in the above comment that the voltages shown in the Digital MultiTester are in the range.
megan
September 9, 2023 at 8:18 pm
sir , i have zebronics psu 450 watts , i would like to keep some stock of this transistors 208c5027r, 13007 0706, 13007 1012b and of secondary side -
stpr1620ct 7skwy u phl 430 stps2045ct 7sabz vw phl 009 stps2045ctc g417b vw chn 236
in india i dont know where to get these online . please guide me to get replacements for these , thank you .