veereshs
Newbie level 1
![Newbie level 1](/styles/images/ranks/alevel1.gif)
Hi
i am new member in this site..now i am repairing of astec smps model number sa451-3500,but i have problem i.e when we switch on the power supply the outputs comes (+5v,+12,-12v,+3.3v,-5v,-12v) then all outputs goes to zero please help me what is the problem in the smps...i allready checked all passive and active components and replce the two ic(as2214f pwm,as2333c ) but still i have same problem
i am new member in this site..now i am repairing of astec smps model number sa451-3500,but i have problem i.e when we switch on the power supply the outputs comes (+5v,+12,-12v,+3.3v,-5v,-12v) then all outputs goes to zero please help me what is the problem in the smps...i allready checked all passive and active components and replce the two ic(as2214f pwm,as2333c ) but still i have same problem