ProcedureData TransmissionReplacement/FRUReplace

Disassemble the MUDAT (rotation and stationary section PWBs)

Remove the MUDAT — the gantry's optical data-transmission unit — down to its individual stationary- and rotation-section PWBs (SOT, SPD, ROT, RPD, PPBM, and PRTM), to replace a faulty board or to gain access for further work. Source documents this as a removal sequence and states explicitly: to reassemble, reverse the same procedure. No separate numbered reinstall subsection exists for this task i

Applies to

Activion16 (TSX-031A). No model- or hardware-generation-specific restriction is stated in source for this task.

Personnel

1 technician · Field service engineer (CT Data Transmission Unit — PWB-level service on the MUDAT rotation and stationary rings; comfortable working next to the slip ring/brush section)

Steps

8 steps

Source

2D201-113EN*J §3.5.5 'Procedure for disassembling the MUDAT' (p.395)

Tools & parts

Item	Part number	Qty
Connector cover, stationary section	n/a in source	1
Cables, stationary section	n/a in source	not stated
Main under cover mounting bracket	n/a in source	1
SOT mounting plate	n/a in source	1
PWB, SOT	n/a in source	1
PWB, SPD	n/a in source	1
PWB, ROT	n/a in source	1
PWB, RPD	n/a in source	1
PWB, PPBM	n/a in source	1
PWB, PRTM	n/a in source	1

Safety

DANGER

Hazard: Hazardous voltage in the LCSR (slip ring section) and brush section, reached by removing the rear dome cover

Consequence: Electric shock

Avoidance: Do not remove the rear dome cover. If it is necessary to remove it, turn OFF the breaker before mounting/removing the rear dome cover. Do not turn ON the power of the gantry when the rear dome cover is removed.

CAUTION

Hazard: Looking into the LED through the opening to check the luminescence of the SOT

Consequence: Hitting your head or another part of your body against peripheral parts

Avoidance: Be extremely careful when checking the luminescence of the SOT this way.

NOTICE

Hazard: Rotating the gantry rotating unit with the IR converter inserted in the notch

Consequence: Interference with the hood of the rotating unit, damaging the system

Avoidance: Never rotate the gantry rotating unit with the IR converter inserted in the notch.

Full step-by-step for Disassemble the MUDAT (rotation and stationary section PWBs)

All 8 steps are documented in the FSELIB Activion16 (TSX-031A) service manual — re-authored, web-first, with the real figures from the source.

Open the full procedure

Related Data Transmission guides

Check gantry rotation and MUDAT data transfer after working on the MUDAT7 steps Check the MUDAT transmission-LED luminescence (ROT and SOT sides)7 steps Data transfer section error-identification test tools (DAS / Console / ROTSOT / SOTROT / OPCONTA / GCIFA)6 steps GCIFA-D2 PWB troubleshooting flowchart (Data Transmission)0 steps Malfunction of DAS data communication — cause investigation (streak/ring artifacts)26 steps Malfunction of control system data communication — MUDAT ROTSOT/SOTROT fault tree (Data Transmission)14 steps

View all Activion16 (TSX-031A) guides

Source: 2D201-113EN*J §3.5.5 'Procedure for disassembling the MUDAT' (p.395). Preview re-authored by FSELIB — the full procedure with figures and steps is in the paid service manual.