It means degaussing resistance. Degausser is a positive temperature coefficient thermistor, in the operating temperature range with the increase of its own temperature, its resistance will increase rapidly in a short time, the resistance value from ten to tens of euros at room temperature to a large, from the on-state to the resistance state, so the degausser has switching characteristics.
The shape of the degaussing resistance is rectangular and oval, but the rectangle is more common. The pins have two legs and three legs, but two legs are more common, and there is a cylindrical degausser inside, and a metal elastic contact piece on each side.
What is the meaning of the circuit board phc, respectively, is a degaussing resistance transistor diode voltage regulator diode integrated circuit. Let's see what other people say.