ProcedureX-ray & HV (SRU generator)Replacement/FRUReplace
Replace the inverter in the SRU generator
Replace an individual inverter in the SRU generator — and its matching filter-board fuse — by removing the top cover chassis, disconnecting the four input/signal cables, unbolting the filter screws to lift the assembly clear, then freeing the radiator so the inverter itself can be swapped.
Applies to
Aquilion 16 (TSX-101A)
Personnel
Intermediate — reach the inverter by removing the SRU generator's top cover chassis (keeping the near-side drive power supply mounted on it), disconnecting the four input/signal cables, unbolting the screws at J1 to J10(11) and J14 to J18 on both filters to lift the assembly clear together with the drive power supply, then freeing the screws at both ends of the inverter's radiator — ideally with a magnetic screwdriver, since a dropped screw is otherwise hard to recover from around the radiator — before swapping the inverter and its matching filter-board fuse together. No torque value, electrical test, or calibration step is stated within this section itself. (Skill assessment derived from procedure content — not an OEM-stated skill level.)
Steps
5 steps
Source
2D201-064E*H p.117
Tools & parts
| Item | Part number | Qty |
|---|---|---|
| Magnetic screwdriver | n/a in source | 1 — optional; source states the radiator may instead be lifted out together with its screws if one is not available |
| Replacement inverter | n/a in source | n/a in source |
| Corresponding filter-board fuse | n/a in source | n/a in source |
Full step-by-step for Replace the inverter in the SRU generator
All 5 steps are documented in the FSELIB Aquilion 16 (TSX-101A) service manual — re-authored, web-first, with the real figures from the source.
Open the full procedureRelated X-ray & HV (SRU generator) guides
Identify the defective inverter before replacement0 stepsRemove and remount the SRU unit11 stepsError-cause identification flowchart (block test to isolate SRU/HV cable)4 stepsTroubleshoot inverter temperature error and anode/cathode arc0 stepsTroubleshoot kV/mA output faults (Over mA, Under mA, HV overcurrent, Under kV)0 stepsTroubleshoot SRU status error and identify the faulty inverter block0 steps
View all Aquilion 16 (TSX-101A) guidesSource: 2D201-064E*H p.117. Preview re-authored by FSELIB — the full procedure with figures and steps is in the paid service manual.