The logic board of the iMac (Retina 4K, 21.5-inch, 2017), model A1418, 2017, 21.5-inch, Retina 4K. Known faults are being collected.
No guided tree is live for this board yet. The profile, the viewer and manual entry are there on the free plan, and the first sessions on it build the tree.
Checked on 2026-10-29 against 2 sources: corrected. CSV info 'iMac 21.5" Slim 2017' leaves out that this is the Retina 4K board (the CSV puts the 4K label on 820-01069 instead). logi.wiki lists 820-01061 as '2017 iMac 21.5" 4K Core i5 7400 3.00GHz'; beetstech lists 820-01061-A as a printed part number of the 'Logic Board w/ CPU - iMac 21.5" A1418 (Mid 2017 4K)', 'only compatible with the iMac 21.5" A1418 (Mid 2017) with Retina 4K LCD display assembly'. Model name set to iMac (Retina 4K, 21.5-inch, 2017), identifier iMac18,2 (everymac: 2017 4K A1418 is EMC 3069, iMac18,2). Revision A is a placeholder until Studio records the real revisions.
Open the board in NextProbe, answer the symptom questions and follow the lit point. The free plan includes three guided sessions a month. Your own boardview and schematic stay on your machine.