Ros +5 Vdc Switched Voltage Rap - Xerox Phaser 790 Service Manual

001-705 ROS +5 VDC Switched Voltage RAP

Initial Actions
Check the following:
• Ensure the Right Front Cover is closed.
• Ensure the Top Cover is correctly positioned and is actuating the Top Cover Interlock.
Procedure
Switch off the power. Remove the Rear Cover. Switch on the power. +5 VDC is measured
between J32-22 on the Low Voltage Power Supply and machine frame.
Y N
Replace the Low Voltage Power Supply (PL 11.1).
Remove the Top Cover. Actuate the Top Cover Interlock. +5 VDC is measured between
J125-1 on the ROS Assembly and machine frame.
Y N
With the Top Cover Interlock still actuated, +5 VDC is measured between FS2 (blue
wire) on the Top Cover Interlock and machine frame.
Y N
+5 VDC is measured between FS1 (blue wire) on the Top Cover Interlock and
machine frame.
Y N
+5 VDC is measured between J194-1 (blue wire) on the Right Front Cover
Interlock and machine frame.
Y N
+5 VDC is measured between J193-1 (brown wire) on the Right Front
Cover Interlock and machine frame.
Y N
Go to Flag 3. Check the wire for an open circuit.
Replace the Right Front Cover Interlock (PL 11.2).
Go to Flag 2. Check the wire for an open circuit.
Replace the Top Cover Interlock (PL 11.1).
Go to Flag 1. Check the wire for an open circuit.
The ROS +5 VDC Switched circuit appears to be functioning correctly.
Initial Issue
Phaser 790/DocuColor 2006
10/00
2-13
Status Indicator RAPs
001-705