Xerox DocuColor 2240 Service Manual page 143

6-383 ROS SOS K Length
The interval of the ROS Start-of-Scan (K) signals exceeds the specified value.
Procedure
+5VDC is measured between the MCU PWB P/J401-A2 (+) and ground (-).
Y N
Replace the MCU PWB (PL 13.1).
Refer to Figure 1 and check the wire between the SOS PWB (K) P/J515-2 and the MCU PWB
P/J401-B6 for an open circuit.
Check the wires between P/J526 and the MCU PWB
If no problems are found, replace the ROS Assembly
If the problem continues, replace the MCU PWB
Figure 1 6-383 RAP Circuit Diagram - ROS SOS K
Status Indicator RAPs
6-383, 6-385
P/J401 for an open circuit.
(PL 3.1).
(PL 13.1).
6-385 ROS ASIC
The Control Logic detected an operation failure of the ROS ASIC in the MCU PWB.
Procedure
Switch power off then on. The problem continues.
Y N
Return to Service Call Procedures.
Replace the MCU PWB (PL 13.1).
09/03
2-110
Initial issue
DC 3535/2240/1632, WC M24