Test circuit and method for detecting sound function of movements

• Main Author: LI YANQIAO
• Format: Patent
• Language: Chinese; English
• Published: 15.02.2019
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention relates to a test circuit and method for detecting the sound function of movements. The test circuit for detecting the sound function of movements includes one or more movement units, test keys connected with the movement units, an LED lamp control circuit and LED indicator lamps. The number of the test keys and the number of the LED indicator lamps correspond to the number of the movement units. Each movement unit includes a movement shell and a circuit board arranged inside the movement shell. Each circuit board is equipped with a microprocessor, and an LCD display circuit, a key circuit, a clock circuit and a buzzer oscillation circuit connected with the microprocessor. According to the invention, the LED indicator lamps are used to replace the test of load sound, whetherthe sound and oscillation circuits in watch movements are good or bad can be directly distinguished according to whether the LED indicator lamps go on or off, and the production and detection efficiency and the detection effe