Xerox WC5545F, Service Manual

Page: 335 / 2320

August 2007
2-143
WorkCentre 5687 Family
06-340
Status Indicator RAPs
06-340 ROS Laser Failure RAP
06-340. The IOT PWB has not detected the ROS laser reaching the operating speed.
Procedure
WARNING
Avoid exposure to laser beam. Invisible laser radiation.
Go to Flag 3, connect a service meter to P/J 2 pin 7 and make a set of 5 copies. 0V is mea-
sured at P/J2 pin 7 on the IOT PWB during run.
Y
N
The xerographic module is fully home and the front door is fully closed or the front
door interlock is cheated.
Y
N
Correct the condition.
Go to Flag 1. Disconnect P/J18 from the LVPS. Check the following voltages on the
LVPS:
• +24V between pins 1 and 2.
• +3.3V between pins 3 and 4.
The voltages are good.
Y
N
Go to the relevant RAP:
• 01B 0V Distribution RAP, refer to the 3.3V return and 24V return.
• 01D +3.3V Distribution RAP.
• 01G +24V Distribution RAP.
Enter the dC330 output code 06-020. Go to Flag 2. The ROS motor gives a distinctive
ascending frequency sound, of a short duration (5 to 6 seconds) during transition
from standby to run.
Y
N
Go to the 06-020 ROS Motor Failure RAP.
NOTE: The ROS must be removed from the machine, REP 6.1, to disconnect P/J122
and P/J121. The ROS PWB where P/J122 and P/J121 are connected may not be
marked with the correct PJ numbers. P/J122 can be identified as a four way power har-
ness. P/J121 can be identified as a seven way signal harness.
Check the wiring at Flag 1, Flag 2 and Flag 3. The wiring is good.
Y
N
Repair the wiring or install new harness PL 6.10 Item 5.
Install a new ROS, PL 6.10 Item 4.
Go to Flag 4. Check that P/J109 (32-55 ppm) or P/J228 (65-87 ppm) on the image processing
PWB is securely connected. If the fault is still present, remove the ROS, REP 6.1. Go to Flag 4
and ensure that PJ122 on the ROS is securely connected. If the fault is still present, go to Flag
4 and check the continuity of the ROS data cable ( P/J228 or P/J109 to PJ122). The ROS
data cable is good
Y
N
Install a new ROS power distribution/communications harness, PL 6.10 Item 5.
Install new parts in the following order:
• ROS, PL 6.10 Item 4.
• Image processing PWB (32-55 ppm), PL 3.20 Item 3.
• Image processing PWB (65-87 ppm), PL 3.10 Item 3.
• Perform OF7 IOT PWB Diagnostics RAP before a new IOT PWB is installed, PL 1.10 Item
2.
Figure 1 Component Location
ROS
P/J18 (harness)
P/J2 (harness)
P/J122
P/J121
P/J120
A
A
B
B