Le labo de Michel | LDM #366: Aircraft Coffee Maker Part 2: reverse engineering @lelabodemichel5162 | Uploaded 4 months ago | Updated 2 hours ago
00:00 - Intro
00:19 - VG1000J unknown part (actually VQ1000J)
01:46 - Schematic diagram overview
02:38 - Power supply
04:31 - Modifications for 115/230V 50/60Hz
07:07 - AC-DC converter assy
08:03 - Temperature controller
10:22 - Crowbar circuits
11:42 - Logic circuits
14:28 - Capacitive probe fontend

Notes:
The supposed VG1000J is actually a VQ1000J:
vishay.com/docs/70226/70226.pdf

Blog:
https://mwblog.fr/ldm364/