Why is it dangerous to attempt self-repair of a monitor?

The reason it is dangerous to attempt self-repair of a monitor relates to the presence of high voltages within the device. Monitors contain electrical components that can retain a significant amount of charge even after being unplugged. This residual charge can be lethal; thus, anyone attempting to repair a monitor risks serious injury or death if they come in contact with these live electrical components.

Furthermore, while it is true that monitors may contain toxic chemicals and various internal hazards, the most immediate and pressing concern is the risk of electrocution from high voltage electrical sources. Proper safety precautions and procedures, often requiring specialized training, are essential when dealing with such devices to ensure a safe handling and repair process.