Device: Leica E7500i (Electronic/Optical Measurement Instrument). Findings reflect the technician’s best professional judgment and confidence level at the time documented. Reported fault is that the device resets during measurement and/or presents a garbled display. This behavior is consistent with an unstable internal power regulation/distribution condition and/or a compromised display subsystem (display module or its interconnect), requiring authorized module/assembly-level service. Systems Decomposition & Component Health Assessment Procedure (SD-CHAP). ? External Power Input / Battery Charging: Functional? Power Regulation & Distribution: Not Functional?? Processing / Control: Functional?? Measurement / Sensing Subsystem: Functional?? Optical Path / Alignment: Functional? Display & Video Output: Not Functional?? User Input (Keypad/Buttons): Functional?? I/O & Connectivity (Ports): Functional?? Mechanical Structure & Sealing: Functional?? Internal Interconnects & Protection: Functional. Main Control PCB Assembly – LCE7500I-70249180. Power Management / Regulation PCB Assembly – LCE7500I-70249181. Display Module Assembly (LCD/OLED with Integrated Driver) – LCE7500I-70249182. Battery Pack Assembly (Removable/Serviceable Unit) – LCE7500I-70249183. Optical/Measurement Engine Assembly (Core Measurement Module) – LCE7500I-70249184. Sensor/Detector Module Assembly (Measurement Detector Submodule) – LCE7500I-70249185. Laser/Emitter Module Assembly (If Applicable to Device Variant) – LCE7500I-70249186. Keypad / Button Board Assembly – LCE7500I-70249187. User Interface Overlay / Keymat Assembly – LCE7500I-70249188. I/O Port PCB Assembly (External Ports/Connectors Board) – LCE7500I-70249189. DC Input Jack Assembly (If Applicable) – LCE7500I-70249190. Battery Contact / Terminal Assembly – LCE7500I-70249191. Charging Dock / Cradle Interface Assembly (If Applicable) – LCE7500I-70249192. Display Flex / Interconnect Cable Assembly – LCE7500I-70249193. Main Board-to-Module Harness Set (Internal Cable Set) – LCE7500I-70249194. Internal Grounding Strap Set – LCE7500I-70249195. Upper Housing Assembly (Top Shell with Window/Bezel Features) – LCE7500I-70249196. Lower Housing Assembly (Bottom Shell) – LCE7500I-70249197. Front Bezel Assembly (Display Surround/Window Frame) – LCE7500I-70249198. Protective Display Lens / Cover Assembly – LCE7500I-70249199. Sealing Gasket Set (Housing/Buttons/Ports) – LCE7500I-70249200. Internal Shielding Set (EMI/Optical Baffles as Assemblies) – LCE7500I-70249201. Internal Mounting Bracket Set (Module Supports/Standoffs) – LCE7500I-70249202. Carrying Handle / Grip Assembly (If Applicable) – LCE7500I-70249203. Tripod/Bracket Mount Insert Assembly (If Applicable) – LCE7500I-70249204. Port Hardware Set (Nuts/Washers/Retainers as Kit) – LCE7500I-70249205. Fastener Kit (External/Internal Screws as Kit) – LCE7500I-70249206. Foot/Bumper Set (Rubber Feet/Corner Bumpers, Set) – LCE7500I-70249207. Battery Door / Cover Assembly (If Applicable) – LCE7500I-70249208. Connector Dust Cover Set (If Applicable) – LCE7500I-70249209. Regulatory / Model Label Set – LCE7500I-70249210. Leica E7500i device (main unit only, as inspected). No additional accessories are guaranteed unless explicitly shown in photos e. Chargers, batteries, cables, cases, mounts, manuals, software/media. Food and Drug Administration and state and local regulatory agencies.