Control surface for a trunking personal radio

摘要: A control surface is positioned on the top horizontal of case a personal radio. flexible printed circuit connects to internal electronic circuits board connected by connector soldered both and board. Some plurality electrical pathways disposed are grouped into conductive pairs, while other connect pairs connector. keypad formed sheet resilient material encases Molded hollow keys, each which contains pad. When key depressed, pad associated with that makes contact predetermined ones board, completing an circuit. The completed detected radio used program functions