Development of training Manual for Maintenance of Radio and Digital Versatile Disc Player Radio Sub-System for Electronics Craftsmen

Abstract

This study developed a training manual for maintenance of Radio and Digital Versatile Disc (Radio and D VD) Player for electronics craftsmen. Specifically, the study developed appropriate maintenance contents for training craftsmen in the radio sub¬system of the Radio and DVD player. One research question and one hypothesis guided the study. The study is Research and Development (R&D) and adopted the Wheeler's model. The population for the study was 58 respondents which consist of 32 electronics teachers in all the accredited science and technical colleges offering electronics trade and 26 master craftsmen with the NDE States head offices in North-Central States of Nigeria. The instrument used for data collection was questionnaire. The questionnaire has section A and B. Section A solicited information on respondents personal data while section B solicited information on appropriate maintenance contents for training craftsmen in the radio sub-system with 67structure item that was organised under maintenance objective, task criteria, teaching content and tools and materials. Data collected was analyzed using mean for the research question and Nest for hypothesis. After carrying out the analysis, emerging findings revealed appropriate maintenance objective, task criteria, teaching content and tools and materials for training craftsmen in the radio suh-system. Some of the findings on objectives and tasks are; verify DC supply, verify functioning of Audio Frequency (A.F) Amplifters, test continuity of connector tab pin terminals to radio board, Test surface mounted regulatory transistors terminals. Recommendation made include Radio and DVD player maintenance training module should be included in craftsmen training programme in Nigeria, consequently the developed training manual should be adopted and used for training and retraining of craftsmen in the maintenance of R and DVD player.