TROUBLESHOOTING OF FAULTS IN LIQUID CRYSTAL DISPLAY (LCD) TELEVISIONS BY ELECTRONIC TECHNICIANS

Abstract

The study was carried out to determine Troubleshooting of Faults in Liquid Crystal Display (LCD) Televisions by electronic technicians in Anambra State. In carrying out the research, five research questions and five null hypotheses were formulated for the study.  The population for the study was 3209 persons. This consists of 11 electronic teachers in 10 Government Technical Colleges in Anambra State as well as 3198 electronic technicians in Anambra State. All the 11 electronic technology teachers in 10 Government technical Colleges in Anambra State were used for study as well as 155 electronic technicians selected by simple random sampling. Questionnaire was the instrument used for data collection. This consists of 32 questions (items) developed from the reviewed literature and used to elicit responses from electronic technology teachers and electronic technicians regarding the research questions. Copies of the questionnaire were distributed by the researcher with the help of six research assistants. 95 % of the copies of the questionnaire were returned. Data collected were analyzed using mean while t-test for independent sample was used to test the five null hypotheses at 0.05 level of significance. After carrying out necessary analysis, possible ways of troubleshooting faults in LCD television related to picture, sound, control buttons, power section and other ways were revealed. It was concluded that Electronic technicians should carry out maintenance of LCD televisions by troubleshooting the suspected sections of the LCD television before carrying out any remedy to the faults.