Here the repair manual for S17 >
https://www.zeusbtc.com/NewsDetails.asp?ID=170and this is for the T17 >
https://www.zeusbtc.com/NewsDetails.asp?ID=187If you need other manuals for other models just search within the same website, also for more information on how to fix them and what tools you need, I sugest you read this
topcAlso, are the temperature sensors part of the chips, or are these separate components?
The chip temp sensor is a part of the chip, but the PCB sensors are 4 different once and they are located near the chips usually around the 4 corners of the hashboard, I have investigated this topic intensively
here and I arrived at the conclusion that it's almost never about a bad temp sensor even if the kernel log tells you it is.