Interlock Switch Removal - Lexmark X734de Service Manual

7526
24 V interlock switch removal
Step Questions / actions
Is the 24 V switch damaged?
1
Turn the printer off, and remove the rear
2
frame cover. See
removal" on page
Check the cable in connector JCVR1 for
proper connection to the system board, for
pinch points, and for any other damage to the
cable or connector.
A
Is the cable damaged?
1. Disconnect the cable in connector JCVR1/
3
2. Connect the new 24 V interlock switch.
3. Bring the printer up in the Diagnostics
menu (turn off the printer, press and hold
3 and 6, turn on the printer.)
4. Activate the new 24 V interlock switch.
Does the display go from Close Front Door to
the Diagnostics menu?
Service Manual
2-136
"Rear frame cover
4-40.
1 JBIN1 1 1 JFUSER1 1 JHVPS1 1 JBLW1 1
1
JSB1 1 JFAN1 JBOR1 JMIRR1 1 JOPP1
1
JCVR1
F5
F6 JT1
JLVPS2
1
JCARTP1 F7
1 J49
JCARTS1
1
JBOOT1 1
JUSB1
1
F9 JDIMM1
J10
JCARTS2
1
JTLBT1
1
JCARTP2 1 JFMUSB1
1 JTWF1
1
F10
JTDBUG1
1 JDVR1 1
JTPS1
1
JOPT1 J5
JDX1
1 1
1 F13
1 JFDS1
F12
1 JINT1 F14
JFDPCK1 JTRAY1 JSEC1
JPH1
1
1 JT12
Yes
Replace the 24 V interlock
switch. See
"24 V

interlock switch removal"

on page 4-54.
Replace the 24 V interlock
switch. See
"24 V
interlock switch removal"
on page 4-54.
Replace the 24 V interlock
switch. See
"24 V
interlock switch removal"
on page 4-54.
No
Go to step 2.
Go to step 3.
Replace the system board.
See
"System board
removal" on page 4-165.
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