Replace a broken or damaged power supply board for iMac Intel 27" A1419 (Late 2012-Mid 2017) A2115 (Early 2019-2020) and fix problems with randomly shutting down (on and off) and black screen.

Compatibility:
Compatible with iMac 27 inch A1419 (Late 2012-Mid 2017)
-Compatible with iMac Intel 27" Late 2012 A1419 (EMC 2546)
iMac13,2 Late 2012: MD095LL/A (2.9 GHz Core i5) or MD096LL/A (3.2 GHz Core i5) or (3.4 GHz Core i7)
-Compatible with iMac Intel 27" Late 2013 A1419 (EMC 2639)
iMac14,2 Late 2013: ME088LL/A (3.2 GHz Core i5) or ME089LL/A (3.4 GHz Core i5) or (3.5 GHz Core i7)
-Compatible with iMac Intel 27" Retina 5K Display (Late 2014 & 2015) A1419 (EMC 2806)
iMac15,1 Retina 5K Late 2014: MF886LL/A (3.5 GHz Core i5) or (4.0 GHz Core i7)
iMac15,1 Retina 5K Mid 2015: MF885LL/A (3.3 GHz Core i5)
-Compatible with iMac Intel 27" Retina 5K Display (Late 2015) A1419 (EMC 2834)
iMac17,1 Retina 5K Late 2015: MK462LL/A (3.2 GHz Core i5) or MK482LL/A (3.3 GHz Core i5) or (4.0 GHz Core i7)
-Compatible with iMac Intel 27" Retina 5K Display (Mid 2017) A1419 (EMC 3070)
iMac18,3 Retina 5K Mid 2017: MNE92LL/A (3.4 GHz Core i5) or MNEA2LL/A (3.5 GHz Core i5) or MNED2LL/A (3.8 GHz Core i5) or (4.2 GHz Core i7)

Compatible with iMac Intel 27" Retina 5K Display A2115 (Early 2019-2020)
-Compatible with iMac Intel 27" Retina 5K Display (Early 2019) A2115 (EMC 3194)
iMac19,1 Retina 5K Early 2019: MRQY2LL/A (3.0 GHz Core i5) or MRR02LL/A (3.1 GHz Core i5) or MRR12LL/A (3.7 GHz Core i5) or BTO (3.6 GHz Core i9)
-Compatible with iMac Intel 27" Retina 5K Display 2020 A2115 (EMC 3442)
iMac20,1 Retina 5K 2020: MXWT2LL/A (3.1 GHz Core i5) or MXWU2LL/A (3.3 GHz Core i5) or MXWV2LL/A (3.8 GHz Core i7)
iMac20,1 Retina 5K 2020: BTO (3.6 GHz Core i9)or(3.8 GHz Core i7) or (3.6 GHz Core i9)

-Both of the Model and EMC Number are l