Repair guides
Pick a type, an appliance or a brand. Every guide lists the tools, the safety call-outs, the steps and the reading you should expect.
Diagnostic · 374
Symptom → most likely cause, step by step
Component tests · 69
How to test a specific part, with expected readings
Installation · 33
Install, replace and hook up appliances correctly
Fundamentals · 24
Core skills every appliance tech uses
Appliance
Brand-specific guides
2 guides for Hisense · TVs
Diagnostic · 2
Guide · TVSound but no picture (backlight / LED strip test)
The flashlight test tells you in one minute whether the panel is producing an image with no backlight. If you can see a faint image, the LED strips or LED driver are the likely fault; if not, look at T-con or main board.
Guide · TVTV stuck on logo / restarting (boot loop)
Usually firmware or main board, occasionally power supply. Try a full power drain and a firmware recovery/factory reset before replacing boards.