Lexmark C752 Service Manual page 109

Step Action and questions
7 Check the pick motor cable to HCIT system board
cable connected to CN4 for correct installation.
Is the cable connected correctly?
8 Use the "HCIT system board LED error code table"
on page 2-118.
Does the LED flash 7 times?
9 Make sure the registration home sensor cable is
installed correctly to the sensor and to CN6 on the
system board.
Is the cable connected correctly?
10 Is the registration home sensor operating correctly?
11 Use the "HCIT system board LED error code table"
on page 2-118.
Does the LED flash 8 times?
12 Make sure the pick home sensor cable is installed
correctly to the sensor and to CN6 on the system
board.
Is the cable connected correctly?
13 Is the registration home sensor operating correctly?
14 Use the Standalone Feeding Operation Test to
determine where the paper jams. Use the
system board LED error code table" on page 2-118
to help isolate problems in the feed unit assembly.
Are you able to determine where the failure is
occurring?
Yes
Replace the
following FRUs in
the order shown:
1. HCIT system
board
2. Feed unit
assembly
Go to step 9
Go to step 10
Replace the
following FRUs in
the order shown:
1. HCIT system
board
2. Feed unit
assembly
Go to step 12
Go to step 13
Replace the
following FRUs in
the order shown:
1. HCIT system
board
2. Feed unit
assembly
Repair or replace
"HCIT parts as
necessary
5060-2XX
No
Install the cable
correctly
Go to step 11
Install the cable
correctly
Replace the
following FRUs in
the order shown:
1. Registration
sensor
2. HCIT system
board
Go to step 14
Install the cable
correctly
Replace the
following FRUs in
the order shown:
1. Registration
Sensor
2. HCIT system
board
Replace the feed
unit assembly
2-75
Diagnostic information