Title: S19J PRO - Help with repair Post by: Perverza on November 14, 2021, 07:50:37 PM Hello,
i have board where only 21 chips found. Resistors around chips 21 and 22 are good. I changed chip 21 and 22, but same result, only 21 chips was found. I used this repair manual : Code: https://www.zeusbtc.com/manuals/Antminer-S19-Pro-Hash-Board-Repair-Guide.asp Is layout chips different between S19 PRO and S19J PRO ? Or chips from Alibaba are bad ? :) . Soldering is good, checked twice under microscope. Thanks. M. |