Lexmark C782 Service Manual - Page 106

xx service error service check, > System Board

Page 106 highlights

5061 Step 9 10 Actions and questions Check the voltage at connector J6-1 when the black TMC switch is pressed. Does the voltage measure approximately +3.3 V dc? Check the developer HVPS to system board cable for damage, broken connections, or wire and shorts between adjacent pins. Are there any signs of damage to the cable? 11 Disconnect the developer HVPS cable from connector J6 on the system board. Measure the voltage on connector J14-1 on the system board. Does the voltage measure approximately 0 V dc? Yes Go to step 10 Replace the cable. Replace the system board. See "System board removal" on page 4-89. No Go to step 11 Replace the developer HVPS board. See "Developer HVPS board removal" on page 4-39. Replace the developer HVPS and developer HVPS to system board cable. 956.xx service error service check Service System Board Step 1 2 Actions and questions Remove all option boards from the system board. Turn on the printer. Does the error continue? Replace each option board one at a time, making sure the boards are properly seated. Turn the printer off and then on between each option board to view any error messages. Does the error reappear? Yes Replace the system board. See "System board removal" on page 4-89. Replace the failing option board. No Go to step 2 Problem resolved 982.xx error service check Step Actions and questions 1 Are the output options not recognized? 2 Remove the output option, and reinstall it on the printer. Power on the printer. Does this fix the problem? 3 Remove the input option, and reinstall it on the printer. Power on the printer. Does this fix the problem? 4 Voltage check, base printer autoconnect connector- Turn the power off, and remove the output option from the printer. Check the voltages on the base printer top autoconnect connector. See "Autoconnect-top" on page 5-18. Are the voltages correct? Yes Go to step 2 Replace the output option. Problem resolved Replace the output option. No Go to step 4 Replace the top option autoconnect cable. Go to step 4 Replace the bottom option autoconnect cable. 2-64 Service Manual

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2-64
Service Manual
5061
956.xx service error service check
Service <
xxxx
> System Board
982.xx error service check
9
Check the voltage at connector J6-1 when the black
TMC switch is pressed.
Does the voltage measure approximately +3.3 V dc?
Go to step 10
Go to step 11
10
Check the developer HVPS to system board cable for
damage, broken connections, or wire and shorts
between adjacent pins.
Are there any signs of damage to the cable?
Replace the
cable.
Replace the
developer HVPS
board. See
“Developer
HVPS board
removal” on
page 4-39
.
11
Disconnect the developer HVPS cable from connector
J6 on the system board. Measure the voltage on
connector J14-1 on the system board.
Does the voltage measure approximately 0 V dc?
Replace the
system board.
See
“System
board removal”
on page 4-89
.
Replace the
developer HVPS
and developer
HVPS to system
board cable.
Step
Actions and questions
Yes
No
1
Remove all option boards from the system board. Turn
on the printer.
Does the error continue?
Replace the
system board.
See
“System
board removal”
on page 4-89
.
Go to step 2
2
Replace each option board one at a time, making sure
the boards are properly seated. Turn the printer off and
then on between each option board to view any error
messages.
Does the error reappear?
Replace the
failing option
board.
Problem resolved
Step
Actions and questions
Yes
No
1
Are the output options not recognized?
Go to step 2
Go to step 4
2
Remove the output option, and reinstall it on the
printer. Power on the printer.
Does this fix the problem?
Replace the
output option.
Replace the top
option
autoconnect
cable.
3
Remove the input option, and reinstall it on the printer.
Power on the printer.
Does this fix the problem?
Problem resolved
Go to step 4
4
Voltage check, base printer autoconnect connector—
Turn the power off, and remove the output option from
the printer. Check the voltages on the base printer top
autoconnect connector. See
“Autoconnect—top” on
page 5-18
.
Are the voltages correct?
Replace the
output option.
Replace the
bottom option
autoconnect
cable.
Step
Actions and questions
Yes
No