Lesson 1Cooling systems: fans, vents, filters, thermal sensorsThis part covers ultrasound cooling parts like air flows, fans, vents, filters, and heat sensors, stressing checks, cleaning, replacement times, and how too much heat harms reliability and picture quality in hot Ugandan settings.
Airflow paths and chassis ventilationFan types, control, and replacementDust filters: inspection and cleaningThermal sensors and overheat alarmsHeat sinks and component temperature limitsLesson 2Probe cables, connectors, and strain relief designThis part looks at probe cables and connectors, including wire setup, shielding, strain reliefs, and locking parts, focusing on check methods, common damage types, and options for fixing or replacing in resource-limited areas.
Cable construction and conductor bundlesShielding, grounding, and noise controlStrain relief design and flex pointsProbe connector pins and keyingVisual inspection and bend testingLesson 3System software: firmware, settings, presets, calibration dataThis part explains ultrasound machine software layers, like firmware, setup storage, presets, and calibration info, focusing on update steps, backup plans, version tracking, and safe changes during maintenance.
Main firmware roles and update methodsBootloader, BIOS, and recovery optionsUser settings and exam preset managementCalibration data storage and protectionSoftware logs and error code interpretationLesson 4Peripheral interfaces: USB, network, DICOM, footswitch, gel warmersThis part reviews common ultrasound add-on connections, their roles in daily work, and key upkeep points, including link checks, setup, safety tips, and fixing data and control tools.
USB ports and peripheral device supportNetwork ports, switches, and cablingDICOM configuration and connectivity testsFootswitch wiring, pedals, and mappingGel warmers: power, safety, and upkeepLesson 5Power subsystem: internal PSU, batteries/UPS, fuses, groundingThis part explains the power system, including inside power units, batteries or backup modules, fuses, and earthing, with focus on safety tests, fault finding, and checking right voltages under use.
AC input, line filters, and inrushInternal PSU rails and regulationBattery or UPS modules and testingFuses, breakers, and protection pathsProtective earth and leakage concernsLesson 6Detailed console components: CPU, GPU, DSP, image processing boardsThis part outlines console processing hardware, like CPU, GPU, DSP, and special image boards, explaining their jobs in beam forming, rebuilding, and after-processing, plus usual failure signs.
Main CPU board and system controlGPU roles in rendering and 3DDSP and beamformer hardware blocksImage processing and I/O boardsBoard cooling, seating, and connectorsLesson 7Types of cart-based general imaging systems and common modelsThis part introduces cart-based imaging machines, their build layout, and usual market models, pointing out shared designs, service spots, and tips for upkeep planning in Ugandan hospitals.
Typical cart mechanical layoutConsole, cart, and probe bay ergonomicsPower entry, wheels, and cable managementModel families from major vendorsService access panels and labelsLesson 8Display and monitor subsystems: panels, video cables, settingsThis part describes screen and monitor systems, including LCD panels, backlights, video cables, and setup options, linking picture issues to causes and safe adjustment and replacement steps.
LCD panel types and backlight systemsVideo signal formats and cablingBrightness, contrast, and gamma setupImage artifacts and display diagnosticsMounting hardware and tilt mechanismsLesson 9Probe types: convex, linear, endocavitary — construction and acoustic elementsThis part details main probe types and their inside build, like array shapes, backing and matching layers, and sound lenses, linking designs to performance, breakdowns, and safe handling.
Convex probes: geometry and applicationsLinear probes: structure and use casesEndocavitary probes: design and safetyPiezoelectric arrays and matching layersBacking, damping, and acoustic lens design
