Xx, 920.01-Post (Power-On Self Test) Aligner Error Service Check - Lexmark C734dn Service Manual

5026
Step Questions / actions
Check the MPF/duplex gear assembly for
5
damage.
Do the gears turn freely, and are they free of
damage?
Measure the resistance across fuse F5 (A) on
6
the system board.
A
Is the fuse blown?
147.xx, 920.01—POST (power-on self test) aligner error service check
Step Questions / actions
1. Turn the printer off.
1
2. Remove the rear frame cover. See
frame cover removal" on page
3. Check the cable in connector JFPCK1 for
proper connection to the system board,
the cable for pinch points, and the cable or
connector for any other damage.
A
Is the cable damaged?
Service Manual
2-50
Yes
Go to step 6.
Replace the system board.
See
"System board
removal" on page
1 JBIN1 1 JFUSER1 1 1 JHVPS1 1 JBLW1 1
JSB1 1 JFAN1 JBOR1 1 JMIRR1 1 JOPP1
1
JCVR1
F5
F6 JT1
JLVPS2
1
JCARTP1 F7
1 J49
JCARTS1
1
JBOOT1 1
JUSB1
1
JDIMM1
F9 J10
JCARTS2
1
JTLBT1
1
JCARTP2 1
1 JTWF1 JFMUSB1
1
F10
JTDBUG1
1 JDVR1 1
JTPS1
1
JOPT1 J5
1 JDX1 1
1 F13
1 JFDS1
F12
1 JINT1 F14
JFDPCK1 JTRAY1 JSEC1
JPH1
1
1 JT12
Yes
Replace the paper pick
mechanism. See
"Rear
pick mechanism
4-33.
assembly removal" on
page 4-127.
1 JFUSER1 1 1
1 JBIN1 1 JHVPS1 JBLW1 1
1 1
JSB1 1 JFAN1 JBOR1 JMIRR1 JMIRR1 JOPP1
1
JCVR1
F5
F6 JT1
JLVPS2
1
JCARTP1 F7
J49 J49
1
JCARTS1
1
1
JBOOT1
JUSB1
JDIMM1 JDIMM1 1
F9
J10
JCARTS2
1 JTLBT1
JCARTP2 1 1
JFMUSB1
1 1 JTWF1
F10
JDVR1 JTDBUG1
1 1
JTPS1
1
JOPT1 J5
JDX1
1 1 F13 1
1 JFDS1
JINT1 F12
1 F14
JFDPCK1 JTRAY1 JSEC1 JPH1
1 1 JT12
No
Replace the MPF/duplex
gear assembly. See
"Multipurpose feeder
(MPF)/duplex gear and
housing removal" on
page 4-116.
Replace the MPF/duplex
motor. See
"Multipurpose
4-153. feeder (MPF)/duplex
motor assembly
removal" on page
No
Go to step 2.
"Paper
Previous
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Go Back
4-118.