920.28, 920.29-Post (Power On Self Test) Service Check; 925.03, 925.05-Fan Error Service Check; Next - Lexmark C734dn Service Manual
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Also See for C734dn:
- User manual (216 pages) ,
- Wireless setup manual (35 pages) ,
- Connection manual (5 pages)
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5026
920.27, 920.28, 920.29—POST (power on self test) service check
Step
Questions / actions
Is the specified option the 550-sheet tray?
1
Is the specified option the special media tray?
2
Is the specified option the high-capacity input
3
tray (HCIT)?
925.01, 925.03, 925.05—Fan error service check
Step
Questions / actions
Turn the printer off, and then remove the rear
1
frame cover. See
removal" on page
Check the cable in connector JFAN1 (A) for
proper connection to the system board, for
pinch points, and for any other damage to the
cable or the connector.
A
Is the cable damaged?
Measure the resistance across fuse F5 on the
2
system board.
A
Is the fuse blown?
1. Disconnect the cable in connector JFAN1,
3
and connect a new fan.
2. Bring the printer up in Diagnostic menu
(turn off the printer, press and hold
. and turn on the printer).
Did the error clear?
Service Manual
2-116
"Rear frame cover
4-33.
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
1
JCARTP2
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
1
JBIN1
1
1
JFUSER1
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
1
JBOOT1
JUSB1
1
JDIMM1
F9
J10
JCARTS2
1
JTLBT1
JCARTP2
1
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
and
Yes
Replace the 550-sheet tray
with a new 550-sheet tray
option.
Replace the special media
tray with a new special tray
option.
Replace the HCIT
controller board assembly.
See
"HCIT controller
board assembly
removal" on page
4-197.
Yes
Replace the fan. See
"Cooling fan removal" on
page
4-74.
Replace the system board.
See
"System board
removal" on page
4-153.
Replace the cooling fan.
See
"Cooling fan
removal" on page
4-74.
No
Go to step 2.
Go to step 3.
No
Go to step 2.
Go to step 3.
Replace the system board.
See
"System board
removal" on page
4-153.
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