4059-XXX

990 Service - BIN X

 

FRU

Action

 

 

 

1

D.C. Motor

Check the DC motor cable

 

Mechanical Linkage

connector to be sure it is correctly

 

Assembly (Level 2)

installed at J4 on the output

 

 

expander option board. Go to

 

 

“Output Expander Control Board -

 

 

Level 2 DC Motor” on page 5-24.

 

 

If correct, disconnect J4 from the

 

 

option board and check the

 

 

resistance of the motor on the

 

 

cable connector: J4-1 to J4-2:

 

 

measures between 115 and 135

 

 

ohms. Also check J4-1 and J4-2 to

 

 

the motor case for shorts. If either

 

 

the resistance is incorrect or a

 

 

short is found, replace the motor/

 

 

mechanical linkage assembly.

 

 

Note: If the DC motor is shorted, it

 

 

may also be necessary to replace

 

 

the control board.

 

 

 

2

Output Expander Control

Disconnect the motor cable J4

 

Board (Level 2)

and check the voltages at J4 on

 

 

the board. Go to “Output

 

 

Expander Control Board - Level 2

 

 

DC Motor” on page 5-24.

 

 

Note: Use caution not to short to

 

 

adjacent pins on the connector.

 

 

J4-1 (Motor Idle) +24 V dc

 

 

J4-2 (Motor Idle) +24 V dc

 

 

J4-5 (Motor Idle) +5 V dc

 

 

J4-6 (Motor Idle) +5 V dc

 

 

If any of the voltages are incorrect,

 

 

replace the control board. If the

 

 

voltages are correct, replace the

 

 

DC motor/mechanical linkage

 

 

assembly.

 

 

 

2-854059 Service Manual

Page 112
Image 112
Lexmark 4059-XXX manual XXX Service BIN, Level 2 DC Motor on