Replacing Three Bulged Caps Saved An LG Monitor
Hi, my comrades! I am resuming my articles after a long gap due to hectic domestic activities! Keeping healthy and kicking around as usual! This LG Monitor belongs to the Hospital, where I work and it was brought to me in a dead condition. As I forgot to click it when it was not working, I have just put a picture of it taken immediately after it started working!
As usual, I opened the Monitor at the hospital and the IT-Administrator helped me in cleaning the inside thoroughly. I dismantled the set completely and carried only the boards with the panel to my home for troubleshooting.
On verification, I found that three of the electrolytic capacitors were bulged. After replacing these, looked for any other defective components and could not find any. Did a thorough retouch of the entire power supply board. Applied power and found that the outputs voltages were correct as marked on the board.
So reconnected the board and applied power and found a satisfying display.
Carried the display back to hospital and fit it in its cabinet, connected it to a computer and allowed it to run for hours. As it was working very well, concluded the mission was accomplished successfully!
Well, I never forgot to allow the satisfaction get added to its reopened bag! (LOL).
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 Cracked Fuse, Capacitor, Shorted STR & Diodes Found In ONIDA Ultra Slim CRT TV