Xerox DocuColor 2240 Service Manual page 496

021-360 Foreign Device Failure
The Foreign Device (3rd-party device such as vend station or mechanical Auditron) failed its
internal self-test, or the self-test result has not been returned from the Foreign Device at
power-on.
Procedure
Do not attempt to troubleshoot this circuit by jumpering the Transmit Data or Receive Data
lines (P343 pins 4 ~ 6 on the ESS PWB). This will destroy the serial port on the ESS PWB.
NOTE: Refer to Figure 1 (Circuit Diagram).
Switch the power off, then on. The problem continues.
Y N
Check for loose connections or dirty contacts between the ESS PWB and the Foreign
Interface, and between the FI and the attached device.
Switch off the power. Disconnect the device from the FI. Connect a jumper from pin 1 to pin 3
on J940 on the Foreign Interface. Switch on the power. The fault code is still present.
Y N
Repair or replace the Foreign Device.
Replace the Foreign Interface (PL 10.3). If the problem continues, replace the ESS PWB
13.1).
Figure 1 21-360 RAP Circuit Diagram
Initial issue
DC 3535/2240/1632, WC M24
CAUTION
(PL
09/03
2-463
Status Indicator RAPs
021-360