View Single Post
Old 02-28-2021, 07:32 PM   #10
Join Date: Aug 2014
City & State: Delaware
My Country: USA
Line Voltage: 120VAC
I'm a: Hobbyist Tech
Posts: 119
Default Re: 1300W PSU - Help with replacement mosfet

Ive attached an image of pcb.
red are bad componants.(so far)
green is the good FET circuit

yellow is a questionable power transistor labeled GP4S60S. Cant fine a datasheet on that.
The reason why i question them is because there only 20ohms between the 1st and 3rd leads but also a 10K smd resistor between them as well.... Is it right to suspect them to be bad?
I didnt remove them because they're hard to get to.
Attached Images
File Type: jpg marked.jpg (845.9 KB, 39 views)
sdinelli is offline   Reply With Quote