Broken power supply!

Thread Starter

Mikkel Offersen

Joined Dec 3, 2017
3
hello
I have a power supply circuit board that when I turn on the machine it start for 1 second and turn off and continues until I switch off the power
I have tried to change all the capacitors but still do not work.

What could be the reason it does?

Thanks!
 

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AnalogKid

Joined Aug 1, 2013
8,948
Without a schematic it is impossible to say. If the output comes up to the correct voltage and holds there briefly, then the front end is at least partly functional. During that 1 second is the output correct, or higher than normal?

ak
 

Thread Starter

Mikkel Offersen

Joined Dec 3, 2017
3
Without a schematic it is impossible to say. If the output comes up to the correct voltage and holds there briefly, then the front end is at least partly functional. During that 1 second is the output correct, or higher than normal?

ak
Yes the output is normal in Thatcher 1 second.
I have also tried removing the motor conection and then evrything works except the motor
 
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