Xerox DocuColor 2240, Service Manual

Page: 140 / 1489

09/03
2-107
DC 3535/2240/1632, WC M24
6-371
Status Indicator RAPs Initial issue
6-371 Exposure Lamp
Open circuit of the Lamp was detected.
Procedure
Enter dC330 [006-002]. Press Start. The Exposure Lamp illuminates.
Y N
Switch off the power. Remove the Platen Glass ( REP 6.2 ) and the IPS Cover ( PL 18.3 ).
Switch the power on. (Refer to Figure 1 .) There is +24VDC from P/J724 -3 on the IIT/
IPS PWB to ground (-).
Y
N
There is +24VDC from
P/J724 -1 to P/J724 -4 on the IIT/IPS PWB.
Y N
Replace the IIT/IPS PWB ( PL 18.3 ).
Replace the Lamp Wire Harness ( PL 18.6 ).
If the problem continues, replace the Lamp Ballast PWB ( PL 18.6 ).
If the problem continues, replace the IIT/IPS PWB ( PL 18.3 ).
Enter dC 330 [006-002] and select Start . The voltage at P/J724 -3 drops to approxi-
mately 7.5 VDC.
Y
N
Replace the IIT/IPS PWB ( PL 18.3 ).
Replace the Exposure Lamp ( PL 18.6 ).
If the problem continues, replace the Lamp Wire Harness ( PL 18.6 ).
If the problem continues, replace Lamp Ballast PWB ( PL 18.6 ).
Check the following:
•
The White Reference Strip, under the frame that is below the Registration Edge, for
excessive contamination (
REP 6.13 ).
• The optical light path for contamination.
If the Strip and optics are clean, replace the Exposure Lamp ( PL 18.6 ).
If the problem continues, replace the Lamp Ballast PWB ( PL 18.6 ).
If the problem continues, replace the IIT/IPS PWB ( PL 18.3 ).
Figure 1 6-371 RAP Circuit Diagram - Exposure Lamp