Xerox Phaser 7760 Service Manual page 166

009-348, 009-349 1st BTR Contact Fail
The 1st BTR did not meet the Contact position or the 1st BTR did not reach the Retract posi-
tion. This procedure can be used for troubleshooting Chain Link code 009-348 or 009-349.
Troubleshooting References
Table 1 References
Applicable Parts Parts List Wiring and Plug/Jack References
Left Door PL 2.8
Retract Home Sensor PL 2.9
Accumulator Belt Assembly PL 5.2
Engine Control Board PL 13.1
(MCU PWB)
Status Indicator RAP's
009-348, 009-349
Section 7, Engine Control Board (MCU PWB) Plug/
Jack Locations - Figure 15
Figure 1 009-348, 009-349 1st BTR Retract Sensor
Troubleshooting Procedure
Step Actions and Questions
1 Is the Retract Sensor or Actuator damaged
or out of position?
2 1. Enter Service Diagnostics
Printer Menu > Troubleshooting >
Service Tools > Printer Status Page
> hold the Up and Down buttons
simultaneously > Run Service Diag-
nostics > OK. Run the 1st BTR
Motor Contact/Retract test in Diag-
nostics.
2. Do the 1st BTRs contact and retract?
3 1. Run the 1st BTR Retract Sensor test.
2. Does the status change between H
and L?
January 2010
2-130
Table 2 Procedure
Yes No
Repair or reseat the Go to step 2.
Sensor.
Menu: Replace the Accu- Go to step 3.
mulator Belt Assem-
bly (REP 9.15).
Go to the Transmis- Replace the Accu-
sive Sensor Proce- mulator Belt Assem-
dure. bly (REP
Phaser 7760 Color Laser Printer
9.15).
Revised