本规范涵盖时钟/显示器驱动器印刷线路组件，此处称为PWA。这是六个印刷线路组件之一，包括简化测试设备/内燃机可重新编程（STE/ICE-R）车辆测试仪（VTM）（见图12259265）。

This specification covers a Clock/Display Driver Printed Wiring Assembly referred to herein as the PWA. This is one of six printed wiring assemblies which comprise the Simplified Test Equipment/Internal Combustion Engine-Reprogrammable (STE/ICE-R) Vehicle Test Meter (VTM) (see Drawing 12259265).