Lesson 1Cooling systems: fans, vents, filters, thermal sensorsThis lesson talks about cooling parts in ultrasound machines, like air flows, fans, openings, filters, and heat watchers, stressing checks, cleaning, change times, and how too much heat harms trust and picture clearness in busy South Sudanese hospitals.
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 lesson looks at probe wires and joins, covering wire setups, shields, pull protections, and lock ways, with focus on check methods, usual break patterns, and thoughts on changing or fixing them for use in our rural health centers.
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 lesson makes clear the software layers in ultrasound systems, like base code, setup storage, ready modes, and tune data, centering on update steps, save plans, version watch, and safe change ways for maintenance in South Sudan facilities.
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 lesson goes over usual side connections for ultrasound, their jobs in work flow, and main upkeep spots, including link tests, setups, safety thinks, and fixing data and control add-ons common in our medical posts.
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 lesson explains the power part, covering inside power units, batteries or backup powers, fuses, and earth links, with strong focus on safety looks, problem finding, and checking right voltages under work load in local setups.
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 lesson maps out console work hardware, like brain chips, graph chips, sound chips, and special picture boards, showing their roles in beam making, rebuild, and after work, plus usual fail signs for South Sudanese techs.
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 lesson brings in cart-style general picture machines, their build layout, and usual shop models, pointing out shared designs, service enter points, and plans for stop problems in our community clinics.
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 lesson tells about screen and watch parts, covering flat panels, light backs, video wires, and setup choices, tying picture issues to likely causes and safe adjust and change steps for field use.
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 lesson gives details on main probe kinds and inside builds, like array shapes, back and match layers, and sound lenses, linking designs to work, fail ways, and safe hold practices in South Sudan.
Convex probes: geometry and applicationsLinear probes: structure and use casesEndocavitary probes: design and safetyPiezoelectric arrays and matching layersBacking, damping, and acoustic lens design
