Lexmark C520 Series, Service Manual

Page: 96 / 259

2-38
Service Manual
5022- xxx
146.xx—Motor (duplex) error service check
3 Close the front access door. Turn printer
power on and check for 24 V dc between
JCVR1 pin 1 (red wire) and ground. Is
voltage present?
Note: Ground lead of voltmeter can be
placed on metal chasis to obtain ground.
Go to step 4. Disconnect JCVR1 and
check for 24 V dc between
pin 1 of system card
connector and ground. If
voltage is present, replace
24V interlock switch.Go to
“Top access door 24V
interlock switch removal”
on page 4-60
. If voltage is
not present, replace system
card. Go to
“System card
removal” on page 4-47 .
4 Reconnect JCVR1 if disconnected. Ensure
top access door is completely closed. Check
for 24 V dc between JCVR1 pin 2 (white
wire) and ground. Is voltage present? Go to step 5. Replace 24V interlock
switch.Go to
“Top access
door 24V interlock switch
removal” on page 4-60
.
5 Replace bump aligner motor. Go to “Bump
aligner motor removal” on page 4-45 .
Does error clear?
Problem solved. Replace system card. Go to
“System card removal” on
page 4-47
.
Step Questions / actions Yes No
1 Turn the printer off and remove the rear
cover. Check connector JDUPLX1 for proper
connection to system card, cable for pinch
points and cable or connector for any other
damage. Is cable properly connected and
damage free? Go to step 2. If connector is damaged on
system card, replace
system card. Go to
“System card removal” on
page 4-47
. If JDUPLX1
cable is damaged, replace
duplex front door assembly.
Go to
“Duplex front door
assembly removal” on
page 4-34
.
2 Turn printer power on and check for 24 V dc
between JCVR1 pin 1 (red wire) and ground.
Is voltage present?
Note: Ground lead of voltmeter can be
placed on metal chasis to obtain ground.
Go to step 3. Disconnect JCVR1 and
check for 24 V dc between
pin 1 of system card
connector and ground. If
voltage is present, replace
24V interlock switch.Go to
“Top access door 24V
interlock switch removal”
on page 4-60
. If voltage is
not present, replace system
card. Go to
“System card
removal” on page 4-47 .
3 Reconnect JCVR1 if disconnected. Ensure
top access door is completely closed. Check
for 24 V dc between JCVR1 pin 2 (white
wire) and ground. Is voltage present? Go to step 4. Replace 24V interlock
switch.Go to
“Top access
door 24V interlock switch
removal” on page 4-60
.
Step Questions / actions Yes No