1. According to the test requirements and test board, the structure of the fixture can be designed after choosing a good control mode. It can design board, press board, connector module and so on. The board / press plate of the tool is reasonable, and there are corresponding protective measures to avoid damage test board in the test of the product.
2, the positioning of the fixture is accurate, and the docking of the connector should be smooth.
3, the layout of the fixture box is reasonable, and the cabling and installation control system has plenty of space.
4, optical fiber /MIC/SPK/SIM card analog insertion card should be reserved, and the location of the quasi zone.
5, the location of the interface should be correct, enough and reasonable layout.
6, fixture box lock should use box buckle or buckle to facilitate replacement parts and maintenance.
7. Correct zero point correction. The zero point drift of the test tool will change with the change of the test condition or the difference of the test tool, so it is necessary to correct the zero point correction of the open circuit and the short circuit. Therefore, FCT test fixture has open circuit and short circuit correction settings.
8, when the fixture is broken and aged, needle maintenance can be maintained. If the fixture is damaged, it can not be repaired and the customer changes are no longer needed.
PCBA test fixture is generally customized for a product, which can effectively improve productivity and quality of shipment.