Digital Voltmeter Trainer As A Learning MediaudOf Digital Technique Sequential On The Competency SkillsudOf Audio Video Technique In SMK Negeri 2 Yogyakarta

摘要

The purpose of this study is to know about the design, performance, and theudeligibility level of the Digital Voltmeter Trainer as a learning media of digital techniqueudsequential on the competency skills of Audio Video technique in SMK Negeri 2udYogyakarta.udResearch and Development method is the method that be used in this research. Theudobject of this study is the digital voltmeter trainer. The cycles of the research are : 1)udanalysis, 2) design, 3) implementation, 4) test, 5) validation, 6) and the using test. In orderudto collect the data, the research used some methods, they are: 1) test and performanceudobservation, 2) questionnaire, in order to know the eligibility level of the media, based onudthe content validity and construct validation and also the using test by students of SMK Nud2 Yogyakarta. Describtive analysis is used as the technique to analyse the data.udThe results of the research showed that digital voltmeter trainer as a learning mediaudof digital technique sequential including some cycles: 1) pulse generator, 2) control theudinput pulse, 3) decimal and hexa counter, 4) decoder BCD, 5) display, 6) overflow, 7)udDAC, 8) comparator, 9) selector, and 10) power supply. Test results of the test andudperformance observations of each circuit board trainer showed that it can work properlyudand when used as a gauge voltmeter to measure voltage up to 220V AC or DC. Theudeligibility level media trainer can be seen from the validation test of contents the result upudto 88.41%, the validation test of construct up to 80.11% and the using test by the studentudup to 82.14%, then the digital voltmeter trainer be used as a learning media in SMK N 2udYogyakarta.udKeywords: learning media, trainer, digital voltmeter