Document Fragment View

Matching Fragments

21. It is claimed that axial HM line uses a specially designed Mask for each stage to cover all components' locations on the PWB except the required location to be mounted. The operator uses Static insulation band to minimize rejections. The operators are given specialized training to read component value using standard coding techniques and to insert them on the correct location using masks. This system js developed to achieve maximum efficiency during insertion of axial component with least possible human errors. The PWB inserted with eyelets, jumper wire and axial component are passed through a missing checker machine to detect any error. The machine using one electronic sensor to detect any error which would be indicated by a buzzer alarm and necessary action has to be taken accordingly. The error free PWB is then fed to the radial HM line. The populated PWB (chassis) undergoes visual inspection where the operator can find out any persisting fault in insertion.