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DAS gain-dependent abnormality — reading the GAIN/odd-even-view pattern (§2.8.5)

This page is the FSELIB rewrite of the Activion16 service manual's §2.8.5 "DAS gain-dependent abnormality" — a short but dense piece of fault-isolation logic that tells you which DAS circuit failed based on which of the seven GAIN values read abnormal and whether the abnormality tracks odd views, even views, or every view. It is not a step-by-step check; it is the interpretation key you apply to a

Applies to

Activion16 (TSX-031A) DAS, both the CDAS-035A/1A generation (Converter-16/Control-16 PWBs, §2.2-2.9) and the CDAS-035A/2A generation (AJ-CONVERTER/AJ-CONTROL PWBs, §2.10-2.17) — per the coverage matrix, §2.16.5 'DAS gain-dependent abnormality' (p.281) is a literal repeat of §2.8.5 with no generation-specific detail added, so this single atom covers both. This is fault-isolation logic for interpreting an already-observed GAIN abnormality (e.g., via a DCA dump or offset-data check), not a stand-alone symptom-detection procedure.

Steps

4 steps

Source

2D201-113EN*J §2.8.5 'DAS gain-dependent abnormality' (p.187), identically repeated at §2.16.5 (p.281) for the CDAS-035A/2A generation

Full step-by-step for DAS gain-dependent abnormality — reading the GAIN/odd-even-view pattern (§2.8.5)

All 4 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 steps Check the DAS supply voltage (Control-16 / Converter-16 PWBs)3 steps DAS integrator-dependent abnormality — odd/even-view fault pattern (Integ-A / Integ-B)0 steps DAS/detector troubleshooting — slice thickness-dependent (row-dependent) abnormality7 steps Data acquisition faults — cause × symptom matrix and 4 isolation flowcharts (DAS)8 steps Replace the DAS PWB (Converter-16 / Control-16)7 steps

View all Activion16 (TSX-031A) guides

Source: 2D201-113EN*J §2.8.5 'DAS gain-dependent abnormality' (p.187), identically repeated at §2.16.5 (p.281) for the CDAS-035A/2A generation. Preview re-authored by FSELIB — the full procedure with figures and steps is in the paid service manual.