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repair power supply pc

moath

Sep 23, 2017
3
Joined
Sep 23, 2017
Messages
3
pls help me


i'm repair power pc

im first find the 300vdc on the capacitor
but not any found out put voltage

i'm test transistor s chooper thats ok


i'm not ihave not idea ho test the ic lm324n


pls help me
thank yo
 

kellys_eye

Jun 25, 2010
6,514
Joined
Jun 25, 2010
Messages
6,514
Your lack of understanding could be potentially fatal.

The 300-odd volts appears after the bridge rectifier - no volts could mean either the main fuse has blown or the bridge rectifier has (or both) or the surge suppressor has gone open etc etc.

Since they are so cheap and readily available why not save yourself some trouble (and, potentially, your own life) by purchasing a new one?
 
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