6/02
2-93
DC1632/2240
6-383, 6-385
Status Indicator RAPs
Prelaunch Training/Review
6-383 ROS SOS K Length
The interval of the ROS SOS (K) signals exceeds the specified value.
Procedure
BSD 6.8 BSD 6.1
Check the voltage between the MCU PWB j401-b20 (+) and GND (-). +5VDC is measured.
YN
Replace the MCU PWB (PL 13.1)
Check the wire between the SOS PWB (K) j515-1 and the MCU PWB j401 for an open circuit.
Check the wire between the LD Drive K j526 and the MCU PWB j401 for an open circuit.
If no problems are found, replace the ROS Assembly (PL 3.1).
If the problem continues, replace the MCU PWB (PL 13.1).
6-385 ROS ASIC
Operation failure of the ROS ASIC in the MCU PWB.
Procedure
BSD 6.5 BSD 6.1
Switch power off then on. The problem continues.
YN
Return to Service Call Procedures.
Replace the MCU PWB (PL 13.1).
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