Check - Lexmark C734 Service Manual

5026
920.19—POST (power-on self test)—Transfer module stepper motor not connected
error service check
Step Questions / actions
1 Turn the printer off, and then remove the rear
frame cover. See
removal" on page
Reseat the motor driver cable in connector
JDVR1 (A).
A
Does the error clear?
2 Remove the right cover. See
removal" on page
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?
3
Measure the resistance across fuses F12 (A)
and F13 (B)on the system board.
Is either fuse blown?
2-108
Service Manual
"Rear frame cover
4-33.
1 JBIN1 1 1 JFUSER1 1 JHVPS1 1 JBLW1 1
JSB1 1 JFAN1 JBOR1 1 JMIRR1 JMIRR1 1 JOPP1
1
JCVR1
F5 JT1
F6
JLVPS2
1
JCARTP1 F7
1 J49
JCARTS1
1
1
JBOOT1
JUSB1
1
JDIMM1
F9
J10
JCARTS2
1
JTLBT1
JCARTP2 1 1
1 JFMUSB1
1 JTWF1
F10
JDVR1 JTDBUG1
1 1
JTPS1
1
J5
JOPT1
1 JDX1 1
1 F13
1 JFDS1
F12
JINT1 F14
1
JFDPCK1 JTRAY1 JSEC1 JPH1
1 1 JT12
"Right cover
4-37.
Yes
Problem resolved.
Replace the motor driver
cable. See "Motor driver
cable removal" on
page 4-101.
Replace the system board.
See "System board
removal" on page 4-139.
No
Go to step 2.
Go to step 3.
Go to step 4.