Mosfet Help anyone??

[gtp89]

Hi i am new to the whole fixing electronics so just starting..
I have a rockford fosgate BD1000D oldschool amp and i wanted to know how do i test to see which mosfets are good the guy i took it too told me there was a total of 8 out of the 12 on that side and i want to test em out with my multimeter how do i do that?

 

[wakibaki]

Basic Testing of Semiconductor Devices

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[gtp89]

how do i find out which is the source, gate n drain to test it out?

 

[wakibaki]

Look on the device, it'll have a manufacturers part number on it or a mil. spec. number. Put the number (it may be numbers and letters) into google and find the datasheet, it'll have a picture with the pins marked.

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[gtp89]

you mean the irf3415 number right?