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Ring image View the display section of the thermoregulator. NO 京 北 Defective heat controller, heater, or thermal sensor L or LL size 39°C to 41°C YES 司 公 限 cn 有 m. 展 co 发 a. 54 术 ti 4/ 技 en /4 捷 ig 34 安 il 40 勤 .d 00 天 ww -65 w 0 Check the FOV. SS, S, or M size NO Is the FMD output normal? 01 YES NO Proper FMD alignment? Check the appearance of slits (wedge slit, beam trimmer slit). Realign the FMD YES Problem in the FMD Wedge slit Flaw ont beam trimmer Slit flaw? Trouble in X-ray optical system Defective beam trimmer No flaw NO In proper alignment? For an INTEG PWB that has an abnormal channel, exchange it with the adjacent normal PWB and check the data again. Improper alignment YES YES NO Error on a few channels? Data transmitted right in TEST mode? YES Error channels moved? YES Erroneous data every 16 channels? Defective main detector NO Failure of the OPCONT2 PWB or subsequent section, or of the TIMING I/O PWB, or of cables for each unit, or connector failure YES Defective INTEG PWB NO NO Are offset and offset SD normal? Defective INTEG PWB YES Defective TIMING I/O PWB or FPA/ADC PWB or main detector. Or insufficient dose (increase mAs and perform image acquisition) Figure 2.5-1 Ring image troubleshooting flowchart No. 2D201-103EN*E 110 NO Defective INTEG PWB
