Post (Power-On Self Test)-Transfer Module Stepper Motor Not Connected Error Service Check - Lexmark C734dn Service Manual

Step Questions / actions
Measure the resistance across the fuse F10
4
on the system board.
Is the fuse blown?
920.19—POST (power-on self test)—Transfer module stepper motor not connected
error service check
Step Questions / actions
Turn the printer off, and then remove the rear
1
frame cover. See
removal" on page
Reseat the motor driver cable in connector
JDVR1 (A).
A
Does the error clear?
Remove the right cover. See
2
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?
A
1 JBIN1 1 1 JFUSER1 1 JHVPS1 1 JBLW1 1
1 1 1
JSB1 JFAN1 JBOR1 JMIRR1 JOPP1
1
JCVR1
F5 JT1
F6
JLVPS2
1
JCARTP1 F7
J49
1
JCARTS1
1
1
JBOOT1
JUSB1
JDIMM1 1
F9
J10
JCARTS2
1
JTLBT1
JCARTP2 1 1
1 JTWF1 JFMUSB1 JFMUSB1
1
F10
1 JDVR1 JTDBUG1
1
JTPS1
1 J5
JOPT1
1 JDX1
1 F13 1
1 JFDS1
F12
JINT1 F14
1
JFDPCK1 JTRAY1 JSEC1 JPH1
1 1 JT12
"Rear frame cover
4-33.
1 JBIN1 1 1 JFUSER1 JHVPS1 1 1 JBLW1 1
1 1
JSB1 1 JFAN1 JBOR1 JMIRR1 JOPP1 JOPP1
1
JCVR1 JCVR1
F5
F6 JT1
JLVPS2 JLVPS2
1
JCARTP1 F7
1 J49
JCARTS1
1
1
JBOOT1
JUSB1
JDIMM1 1
F9
J10
JCARTS2
1 JTLBT1
1 1
JCARTP2 JFMUSB1
1 JTWF1
1
F10
JDVR1 JTDBUG1
1 1
JTPS1
1
JOPT1 J5
JDX1
1 1 F13 1
1 JFDS1
F12
1 JINT1 F14
JFDPCK1 JTRAY1 JSEC1
JPH1
1 1 JT12
"Right cover
4-37.
Yes
Replace the system board.
See
"System board
removal" on page 4-153.
Yes
Problem resolved.
Replace the motor driver
cable. See
"Motor driver
cable removal" on
page 4-115.
5026
No
Replace the EP drive
assembly. See
"Electrophotographic
(EP) drive assembly
removal" on page 4-82.
No
Go to step 2.
Go to step 3.
Diagnostic information
2-111
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