Hello all
fun times here tinking with the electronics.
Minifridge PSU blew up. i replaced a diode bridge rectifier and one mosfet that was shorted. a blown fuse and the varistor.
( yes i know i should have replaced both mosfets. Im learning)
i didnt really find anything else wrong so i plugged in and got some high pitch sounds and after 5 secs fireworks went off.
Two resistors fried.
trying to figure out the values of them. No way to tell but hoping someone can give me a general safe bet based on knowledge of switching PSU's.
ive also found a 4.7cap measuring only 2.3uf, shorted zener diode and out of spec 10ohm(i think) resistor attached to that rail.
The other diodes in teh area are measuring OK
See picture. ive circles all the components red.
please let me know what you think happened and what the values could be. and anything else to check.
Thank you in advance
fun times here tinking with the electronics.
Minifridge PSU blew up. i replaced a diode bridge rectifier and one mosfet that was shorted. a blown fuse and the varistor.
( yes i know i should have replaced both mosfets. Im learning)
i didnt really find anything else wrong so i plugged in and got some high pitch sounds and after 5 secs fireworks went off.
Two resistors fried.
trying to figure out the values of them. No way to tell but hoping someone can give me a general safe bet based on knowledge of switching PSU's.
ive also found a 4.7cap measuring only 2.3uf, shorted zener diode and out of spec 10ohm(i think) resistor attached to that rail.
The other diodes in teh area are measuring OK
See picture. ive circles all the components red.
please let me know what you think happened and what the values could be. and anything else to check.
Thank you in advance
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