Effect of New Technology on Technicians

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There are a number of Technician In India.
 who was working like air-conditioning, refrigerator, television, audio, washing machine,  DC  AC panel, Moter, Stabilizer, inverter, and also earned well?
 

But in some years, these have many changes in things and their circuits has been totally changed. 
Regarding these changes Old and New technicians are facing problems. because all the circuits are coming program chips and also PCB changed in smd.


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