Lexmark C760 Service Manual

Diagnostic information2-55
  5060-4xx
2Do the gears stop and the fuser drive assembly gears 
make a loud buzzing sound? Replace the 
FRUs in the order 
shown:
1. Fuser drive  card. See 
“Fuser drive 
card 
assembly” 
on 
page 4-37 .
2. Fuser drive  assembly. 
See  “Fuser 
drive 
assembly” 
on 
page 4-37 .
3. “Fuser 
assembly” 
on 
page 4-35 .Go to step 3
3Check for correct installation of the fuser control cable 
to J33 on the system board. Make sure the cable is 
properly connected.
Is the cable...

2-56Service Manual
5060-4
xx   
148 error code
Step Action and questions Yes No
1 Connector J30 on the system board - Check for correct 
installation of the ITU drive motor cable from the ITU 
drive motor to the system board connector J30.
Is the cable connected correctly? Go to step 2 Install the cable 
correctly
2ITU drive motor - Check for continuity between pin 4 of 
CON1 on the motor drive card and the remaining pins 
in the connector.
Do you measure continuity?
Note: The ITU drive motor can be...

Diagnostic information2-57
  5060-4xx
150 error code
Black cartridge drive assembly
Note:  Any time any of the cartridge drive motor assemblies are replaced perform the  “Motor Detect” on 
page 3-17 . If this procedure is not performed, error code 168 is displayed.
Step Actions and questions Yes No 1 Indicates the black cartridge drive motor has either 
failed to lock or has lost lock. Check the black cartridge 
drive motor cable connection to J30 on the system 
board.
Is the cable installed correctly?...

2-58Service Manual
5060-4
xx   
151 error code
Magenta cartridge drive assembly
Note:  Any time any of the cartridge drive motor assemblies are replaced perform the  “Motor Detect” on 
page 3-17 . If this procedure is not performed, error code 168 is displayed.
152 error code
Cyan cartridge drive assembly
Note:  Any time any of the cartridge drive motor assemblies are replaced perform the  “Motor Detect” on 
page 3-17 . If this procedure is not performed, error code 168 is displayed.
Step Actions and...

Diagnostic information2-59
  5060-4xx
153 error code
Yellow cartridge drive assembly
Note:  Any time any of the cartridge drive motor assemblies are replaced perform the  “Motor Detect” on 
page 3-17 . If this procedure is not performed, error code 168 is displayed.
5Replace the system board.
Does this fix the problem? Problem solved Call your next 
level support
Step Actions and questions Yes No 1 Indicates that the yellow cartridge drive motor has 
either failed to lock or has lost lock. Check the...

2-60Service Manual
5060-4
xx   
154 error code
ITU belt motor
Step Action and questions Yes No
1 Connector J30 on the system board - Check for correct 
installation of the ITU drive motor cable from the ITU 
drive motor to the system board connector J30.
Is the cable connected correctly? Go to step 2 Install the cable 
correctly
2ITU drive motor - Check for continuity between pin 4 of 
CON1 on the motor drive card and the remaining pins 
in the connector.
Do you measure continuity?
Note: The ITU drive...

Diagnostic information2-61
  5060-4xx
156 error code
Black cartridge drive assembly
Note:  Any time any of the cartridge drive motor assemblies are replaced perform the  “Motor Detect” on 
page 3-17 . If this procedure is not performed, error code 168 is displayed.
Step Actions and questions Yes No 1 Error code 156 - The black cartridge drive motor has 
either failed to lock or has lost lock. Check the black 
cartridge drive motor cable connection to J30 on the 
system board.
Is the cable installed...

2-62Service Manual
5060-4
xx   
157 error code
Magenta cartridge drive assembly
Note:  Any time any of the cartridge drive motor assemblies are replaced perform the  “Motor Detect” on 
page 3-17 . If this procedure is not performed, error code 168 is displayed.
158 error code
Cyan cartridge drive assembly
Step Actions and questions Yes No
1 The magenta cartridge drive motor has either failed to 
lock or has lost lock. Check the magenta cartridge 
drive motor cable connection to J34 on the system...

Diagnostic information2-63
  5060-4xx
159 error code
Yellow cartridge drive assembly
Note:  Any time any of the cartridge drive motor assemblies are replaced perform the  “Motor Detect” on 
page 3-17 . If this procedure is not performed, error code 168 is displayed.
160 error code
ITU drive motor service check
Step Actions and questions Yes No
1 The yellow cartridge drive motor has either failed to 
lock or has lost lock. Check the yellow cartridge drive 
motor cable connection to J29 on the system...

2-64Service Manual
5060-4
xx   
162 error code
Black cartridge drive assembly 
Note:  Any time any of the cartridge drive motor assemblies are replaced perform the  “Motor Detect” on 
page 3-17 . If this procedure is not performed, error code 168 is displayed.
163 error code
Magenta cartridge drive assembly
Note:  Any time any of the cartridge drive motor assemblies are replaced perform the  “Motor Detect” on 
page 3-17 . If this procedure is not performed, error code 168 is displayed.
164 error code...