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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