Check LED luminescence with the IR converter (ROT and SOT)
Confirm that every ROT- and SOT-side communication LED in the gantry's optical data link is actually emitting light, by viewing each one — through an IR converter that turns its invisible infrared glow into visible red — first with the rotation section aligned to a notch, then rotated 45° to sweep the rest, and finally on the stationary side.
Tools & parts
| Item | Part number | Qty |
|---|---|---|
| IR converter | BSX77-2088 (Drawing No., Figure 5.4-1) |
Safety
Hazard: Hazardous voltage in the LCSR (slip ring section) and brush section — removing the rear dome cover, or turning gantry power ON while it is removed.
Consequence: Electric shock.
Avoidance: Do not remove the rear dome cover. If it is necessary to remove the rear dome cover, turn OFF the breaker before mounting/removing it. Do not turn ON the power of the gantry when the rear dome cover is removed.
Hazard: Inadvertent gantry rotation during servicing work.
Consequence: (not detailed further in source beyond worker injury from unexpected rotation)
Avoidance: Use the cover switch, NFB120, rotation lock pins, etc. to prevent inadvertent gantry rotation during servicing work in order to ensure safety of the workers.
Hazard: Manually rotating the rotation section without releasing the brake; source labels this call-out "CAUTION" — reclassified NOTICE here as an equipment-only outcome (same reclassification already applied in this volume's grouped safety-precautions atom).
Consequence: May result in system malfunction.
Avoidance: When rotating the rotation section manually, be sure to release the brake before rotating the rotation section.
Hazard: Replacing or checking parts that can be damaged by static electricity, such as PWBs or hard disks, without wearing an antistatic wristband; source labels this call-out "CAUTION" — reclassified NOTICE here as an equipment-only outcome (same reclassification already applied in this volume's grouped safety-precautions atom).
Consequence: (not stated in source beyond damage to static-sensitive components)
Avoidance: When replacing or checking parts that can be damaged by static electricity, such as PWBs or hard disks, be sure to wear an antistatic wristband.
Full step-by-step for Check LED luminescence with the IR converter (ROT and SOT)
All 7 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 Data Transfer (MUDAT) guides
Source: 2D201-059E*D p.93-96. Preview re-authored by FSELIB — the full procedure with figures and steps is in the paid service manual.