Lexmark C734 - Check

2-108 Service Manual
5026
920.19—POST (power-on self test)—Transfer module stepper motor not connected
error service check
Step Questions / actions Yes No
1 Turn the printer off, and then remove the rear
frame cover. See “Rear frame cover
removal” on page 4-33.
Reseat the motor driver cable in connector
JDVR1 (A).
Does the error clear?
Problem resolved. Go to step 2.
2
Remove the right cover. See “Right cover
removal” on page 4-37.
Check the motor driver cable in connector
JDVR1 on the system board for pinch points
or any other damage to the cable or
connector. Also check the connector on the
motor drive card.
Is the cable damaged?
Replace the motor driver
cable. See “Motor driver
cable removal” on
page 4-101.
Go to step 3.
3
Measure the resistance across fuses F12 (A)
and F13 (B)on the system board.
Is either fuse blown?
Replace the system board.
See “System board
removal” on page 4-139.
Go to step 4.
1
JSB1
JBIN1
JFAN1
JFUSER1
JBOR1
JHVPS1
JMIRR1JMIRR1
JBLW1
JCVR1
JLVPS2
JCARTP1
JCARTS1
JCARTS2
JCARTP2
JDVR1
JTPS1
JOPT1
JFDS1
JINT1
JFDPCK1JTRAY1JSEC1
JDX1
JT12
J5
JDIMM1
JOPP1
JT1
JUSB1
JBOOT1
JFMUSB1
J49
JTWF1
JTDBUG1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
JTLBT1
JPH1
F5
F6
F7
F9
F10
F12
F13
F14
1
1
J10
1
1
A