Transistor Failed In V-Guard Stabilizer
Device: V-Guard Stabilizer used for Refrigerators
Complaint reported: Dead
Observation: Complaint was due to some component failure.
Trouble shooting and rectification done: Cleaned the inside thoroughly. Checked the transistors one by one using Analogue Multimeter. Found one transistor shorted. Replaced it. Looked for any other failure of components. Did not find any. Did a thorough dry solder patch up.
Result: Connected a bulb as load and switched on, the Stabilizer worked after about three minutes (time delay) and the output was perfect! Mission accomplished and satisfaction added to the collection bag!
Here are some 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: