Help me repair computer PSU cooler master g750m

Thread Starter

disturbed123

Joined Jun 11, 2020
122
it is cooler master g750m.

the fuse doesn`t beep in diode test mode.i am ataching photo of it. i see any Volts And Amperes on it. With what to replace it? if the fuse is blown what to be the next check?

i am measuring sg60n03p. and after capacitance discharged with Red on D and Black on S i see OL. after put positive to gate for a second and after that bring back to D i see 195.this in diode testing mode. is the item faulty?

thanks
 

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Dodgydave

Joined Jun 22, 2012
11,284
The fuse usually has markings on the metal casing around the sides?

As for the Mosfet testing i check the D/S terminals on diode looking for open circuit and D/G , this fet has a diode across the D/S terminals.

Screenshot_2023-05-05-17-20-10-428_com.android.chrome.jpg
 

Thread Starter

disturbed123

Joined Jun 11, 2020
122
The fuse usually has markings on the metal casing around the sides?
mine has not markings. that`s why i write the model of the psu.

What is the different when check MOSFET with diode between D and s?
 

Thread Starter

disturbed123

Joined Jun 11, 2020
122
can someone find me a schematic ? i found 2 zener diodes shorted on the bottom side of the board but now don`t know what to insert without schematic.
 
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