As i am H/w engg i am tranee in PCS (patani computer systems) sakinaka andheri i am repairing the smps but there is some hard smps like IBM they are not repair by me pls help me! i want to learn about the PC smps so will u please give details about the smps & also ckt diag of smps I also want to study the PC UPS. So, it will be great if u send me the detail ckt. diagrams of all types of S. M. P. S. & U. P. S. Thanks