Burst Capacitor Found In Transformerless Orkia 22 LED Emergency Light
MAKE AND MODEL: Orkia 22 LED Emergency Light of Chinese make
COMPLAINT REPORTED: Dead
TROUBLESHOOTING AND RECTIFICATION DONE: Opened and cleaned the light. Found the 225K/400V Capacitor burst, battery leaked and PCB corroded. Cleaned the board thoroughly. Replaced the burst capacitor as well as the twoelectrolytic caps. Patched up dry solder and covered the tracks with fresh solder. Provided fresh wires including those which went to the selection switch.
This has a selection switch, which can be put to AC or DC or in off position. In AC, it works as an emergency light. In DC, it works as a room light or for carrying it around. In off condition, the charging will take place, but light will remain off in case of power failure, which function can be used during day time or while sleeping to avoid sudden bright light falling on the eyes when power fails. Replaced the battery. Checked and found that the light was working normally in all its functions. Mission accomplished and satisfaction added!
HERE ARE A FEW PICTURES:
This article was prepared for you by Parasuraman Subramanian from India. He is 70 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/longer-time-to-get-on-in-lg-crt-tv-solved/
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Gary Cale
July 29, 2020 at 9:57 pm
Interesting article that reminds me to pay attention to the obvious and simple things involved in electronic repair.
I have read your articles that involved supersluething and diagnosis that were very sophisticated, and in the end this repair was also mission accomplished!
Parasuraman S
July 29, 2020 at 11:09 pm
Many thanks for your encouraging comments! It counts for sure!
Albert van Bemmelen
July 29, 2020 at 10:47 pm
If someone can't see the light, you sure know how to fix it!
Parasuraman S
July 29, 2020 at 11:10 pm
Ha! Ha! Many thanks!
Waleed Rishmawi
July 30, 2020 at 1:27 pm
Went through the intensive care unit dead and was revived. Good job.
Parasuraman S
July 30, 2020 at 6:59 pm
Many thanks, friend!
Yogesh Panchal
July 31, 2020 at 10:53 pm
Transformer less power supply - some times very dangerous where this "X" rated capacitors are used.
Parasuraman S
August 1, 2020 at 12:15 pm
Yes, very true. If the battery is down or weak, high voltage present will damage other components. Sometimes it might cause burning too!
Humberto
August 3, 2020 at 10:47 am
Wow! A great satisfaction when you repair a set. Congratulations.
Parasuraman S
August 4, 2020 at 9:28 am
Many thanks!
Raj
August 5, 2020 at 9:40 pm
Good sharing..thanks
Parasuraman S
August 6, 2020 at 12:14 pm
Many thanks!