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Troubleshoot Activion16 DAS data-acquisition image faults — cause matrix (AJ-CONTROL / AJ-CONVERTER)

Use this page when a reconstructed image shows a ring artifact, a streak/shower artifact, a shifted CT number, or excessive image-SD (noise), and the installed DAS is the CDAS-035A/2A ("AJ") generation — the one built around the AJ-CONTROL and AJ-CONVERTER PWBs. Source states its own intended use for this table plainly: "The relationships between possible problems and their causes are shown in the

Applies to
Activion16 (TSX-031A), CDAS-035A/2A data acquisition section (AJ-CONTROL / AJ-CONVERTER PWBs). No model- or revision-specific restriction beyond that generation is stated in source for this matrix. The CDAS-035A/1A generation has its own byte-identical-shape matrix at §2.8.3 (Related), naming Converter-16/Control-16 in place of AJ-CONVERTER/AJ-CONTROL. Confirm which generation is installed per §2.1 Introduction (toshiba-ct-activion16-das-reference-cdas-version-identification) before using either matrix.
Steps
0 steps
Source
2D201-113EN*J §2.16.3 'Possible problems and troubleshooting' (p.276) — cause x symptom matrix for the CDAS-035A/2A ('AJ') data-acquisition section, followed immediately by four per-symptom troubleshooting flowcharts (pp.277-280: Ring image, Streak shower, Shifted CT number, SD). Structurally identical matrix at §2.8.3 (pp.181-186, CDAS-035A/1A generation) names Converter-16/Control-16 PWBs in place of AJ-CONVERTER/AJ-CONTROL — see Related.

Tools & parts

ItemPart numberQty
Main detector bodyn/a in source
REF detectorn/a in source
AJ-CONVERTER PWBn/a in source
AJ-CONTROL PWBn/a in source
Power cable / DAS power supplyn/a in source
Temperature controllern/a in source
Heatern/a in source
Thermal sensorn/a in source
OPCONTA (PWB)n/a in source
GCIFA (PWB)n/a in source
KGTSM (PWB)n/a in source
MHR2-FC (PWB)n/a in source

Full step-by-step for Troubleshoot Activion16 DAS data-acquisition image faults — cause matrix (AJ-CONTROL / AJ-CONVERTER)

All 0 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 DAS guides

Check the DAS supply voltage (AJ-CONTROL / AJ-CONVERTER PWBs)3 stepsCheck the DAS supply voltage (Control-16 / Converter-16 PWBs)3 stepsDAS gain-dependent abnormality — reading the GAIN/odd-even-view pattern (§2.8.5)4 stepsDAS integrator-dependent abnormality — odd/even-view fault pattern (Integ-A / Integ-B)0 stepsDAS/detector troubleshooting — slice thickness-dependent (row-dependent) abnormality7 stepsData acquisition faults — cause × symptom matrix and 4 isolation flowcharts (DAS)8 steps
View all Activion16 (TSX-031A) guides

Source: 2D201-113EN*J §2.16.3 'Possible problems and troubleshooting' (p.276) — cause x symptom matrix for the CDAS-035A/2A ('AJ') data-acquisition section, followed immediately by four per-symptom troubleshooting flowcharts (pp.277-280: Ring image, Streak shower, Shifted CT number, SD). Structurally identical matrix at §2.8.3 (pp.181-186, CDAS-035A/1A generation) names Converter-16/Control-16 PWBs in place of AJ-CONVERTER/AJ-CONTROL — see Related.. Preview re-authored by FSELIB — the full procedure with figures and steps is in the paid service manual.