electronic displays faults, applying safe working practices and relevant standards, codes and regulations, including: cathode ray tube displays encompassing: operation and characteristics of various types of cathode-ray tubes, including delta, in-line and precision in-line voltages, statics and x-rays around cathode ray tubes set-up and adjustment techniques rear and front projection television systems typical faults plasma displays and their circuit control operation encompassing: advantages of flat panel displays (over conventional cathode ray tubes and raster geometry) theory of plasma gas discharge and phosphor excitation scanning techniques (column/row addressing) luminance/colour aspects (the need to re-address pixels to control light output) gamma correction considerations (reversal of the gamma correction that is carried out at the television studio to compensate for the non-linearity of light output of a conventional cathode ray tube plasma flat panel construction (and handling) liquid crystal displays and the control circuit operation encompassing: principles of transmissive liquid-crystal display (LCD) (as opposed to reflective types) light polarisation (polarisation twisting characteristics of liquid crystal and the need for polarisation filters in display panel) voltage/current requirements and need for electric field fluorescent back light (need for high frequency operation and power requirements) scanning techniques (colour/row addressing and thin film transistors) light attenuation (caused by the many layers/filters the back light has to pass through) construction and handling display circuit diagnostics encompassing: sub-system components (i.e. functional blocks) and their operating parameters factors effecting system performance typical faults, their symptoms and cause fault diagnosis procedures and testing sub-system adjustments advance electronic measuring instruments encompassing: test/measuring devices and their application: frequency counters and synthesisers, spectrum analysers, noise and distortion meters, and radio frequency (RF) communications service monitor connection of test/measuring devices into a circuit encompassing: safety procedures loading and matching storage and delay circuit arrangement of test/measuring devices taking and interpreting readings notion of decibels, including dBm, dBr, dBu and dBo WHS/OHS enterprise responsibilities encompassing: provisions of relevant WHS/OHS legislation principles and practice of effective WHS/OHS management management arrangements relating to regulatory compliance enterprise hazards and risks, control measures and relevant expertise required characteristics and composition of workforce and their impact on WHS/OHS management relevance of enterprise management systems to WHS/OHS management analysis of working environment and design of appropriate WHS/OHS management systems analysis of relevant data and evaluation of WHS/OHS system effectiveness assess resources to establish and maintain WHS/OHS management systems relevant manufacturer specifications relevant workplace documentation relevant workplace policies and procedures. |