TroubleshootingCouch/ControlTroubleshootingTroubleshoot
Patient couch control troubleshooting (CBTB-016A/016B)
Work the Aquilion 16 CBTB-016A/016B patient couch's control-side fault-isolation flows — from the couch not going UP or DOWN, through the slide-servo-amplifier's 17 numbered alarm codes and its message/display conditions, to a stop-position error — using the OEM's own step sequences for the vertical (lift) and horizontal (slide) control circuits (source §9.6, p.195-201).
Applies to
Aquilion 16 (TSX-101A) — gantry/couch control volume 2D201-063, section 9.6 ("Patient Couch Control Troubleshooting (for the CBTB-016A/016B)"). Source writes this fault-isolation section specifically for the CBTB-016A/016B patient couch — confirm the couch fitted is one of these two variants before using it (compare against the CBTB-014A / Selfpropelled couches covered by other sections of this same volume, e.g. Related: control-couch-horizontal-abs-value).
Personnel
1 technician · Intermediate — electrical fault isolation on the couch vertical (lift/hydraulic) and horizontal (slide/servo) control circuits: AC-voltage checks (200 VAC) at CP5, CNN1, and TB380; LED confirmation on the KGTSM; a potentiometer-resistance check at CNN26; and slide-servo-amplifier alarm-code fault isolation across 17 named alarm/message conditions (CN POWER three-phase checks, CNN14/CNN15/CN504/CN517 continuity, clutch/brake terminal-board voltage, and maintenance-tool parameter/feedback-pulse checks) — escalating to slide servo amplifier, motor, motor encoder, KGTSP, or KGTSM replacement, with two points that direct contacting Nasu Operations instead of continuing repair in the field (skill assessment derived from procedure content — not an OEM-stated skill level).
Steps
11 steps
Source
2D201-063E*G p.195-201
Full step-by-step for Patient couch control troubleshooting (CBTB-016A/016B)
All 11 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 Couch/Control guides
Set couch autoslide movement range and zero-clear time4 stepsAdjust couch height and projector angle displays10 stepsSet couch horizontal movement absolute-value control data9 stepsCouch slide servo amplifier operation and maintenance tool (CBTB-016A/016B)10 stepsSet couch-top sliding fine-adjustment function5 stepsCheck the couch-top speed2 steps
View all Aquilion 16 (TSX-101A) guidesSource: 2D201-063E*G p.195-201. Preview re-authored by FSELIB — the full procedure with figures and steps is in the paid service manual.