Abstract: A timing control circuit includes a single chip having a plurality of output ports; a chip selecting circuit having a plurality of control ports connected to the output ports and paths; a signal input circuit; a signal output circuit; and a switching circuit including a plurality of signal channels. The chip selecting circuit generates a selection signal according to a control signal and outputs the selected signal via one of the selected paths. One of the channels is selected when a selection signal is output via the selected channel. When one of the signal channels is selected and there are signals inputted by the signal input circuit via the signal channel, the signals from the signal input circuit are passed to the signal output circuit through the signal channel and the light emitting diode in the signal channel is turned on.

Abstract: A connector port for mounting in a housing of an electronic device is illustrated. The connector port includes a shell defining an accessing hole having an opening, a port cover movably retained in the accessing hole, and a resilient element. The shell includes a plurality of spaced contact pins exposed in the accessing hole. One end of the resilient element is arranged adjacent to the port cover for maintaining the port cover at the opening of the accessing hole when the resilient element is in a natural state.

Abstract: A timing control circuit includes a single chip having a plurality of output ports; a chip selecting circuit having a plurality of control ports connected to the output ports and paths; a signal input circuit; a signal output circuit; and a switching circuit including a plurality of signal channels. The chip selecting circuit generates a selection signal according to a control signal and outputs the selected signal via one of the selected paths. One of the channels is selected when a selection signal is output via the selected channel. When one of the signal channels is selected and there are signals inputted by the signal input circuit via the signal channel, the signals from the signal input circuit are passed to the signal output circuit through the signal channel and the light emitting diode in the signal channel is turned on.

Abstract: A connector port for mounting in a housing of an electronic device is illustrated. The connector port includes a shell defining an accessing hole having an opening, a port cover movably retained in the accessing hole, and a resilient element. The shell includes a plurality of spaced contact pins exposed in the accessing hole. One end of the resilient element is arranged adjacent to the port cover for maintaining the port cover at the opening of the accessing hole when the resilient element is in a natural state.

Abstract: A machine motion control system for testing electronic devices includes two test machines, a control card and a main controller. The test machines secure the electronic devices, whereby each test machine includes a plurality of moving parts for securing the electronic devices and a plurality of driving modules. The driving modules drive and control the corresponding moving parts of the test machine. The control card controls the driving modules. The main controller provides and transmits a movement instruction to the control card, the control card monitors and controls the driving modules according to the movement instruction, and the driving modules accordingly adjusts and drives the test machines and the moving parts on the test machines.

Abstract: A testing system for a portable electronic device includes a sequential control card, a plurality of test devices, and a plurality of switches. The sequential control card provides and outputs command signals according to a predetermined test sequence. The test devices test the portable electronic devices according to the test sequence. The switches are connected between the sequential control card and the corresponding test devices, and are switched on, in order, under the control of the command signal from the sequential control card according to the test sequence to activate the corresponding test devices. The test devices test the portable electronic device according to the predetermined test sequence.

Abstract: A machine motion control system for testing electronic devices includes two test machines, a control card and a main controller. The test machines secure the electronic devices, whereby each test machine includes a plurality of moving parts for securing the electronic devices and a plurality of driving modules. The driving modules drive and control the corresponding moving parts of the test machine. The control card controls the driving modules. The main controller provides and transmits a movement instruction to the control card, the control card monitors and controls the driving modules according to the movement instruction, and the driving modules accordingly adjusts and drives the test machines and the moving parts on the test machines.