Lexmark Optra N model 240 Service Manual - Page 27

Power Service Check, Diagnostic Information 2-14, Finisher

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4040 Finisher 2 Staple Tray Paper Sensor, PI-4, (5-1) 3 Finisher Driver Board (13-1) Check the voltage of J9-3 on the finisher driver board. There should be 0 V when the sensor is activated (PN 11D0071). If there is still a problem, replace the finisher driver board (PN 11D0294). Power Service Check Be sure the correct voltage is available at the power outlet, and the power plug is firmly plugged into the printer, paper deck, and finisher. FRU 1 Interface Connector 2 • Option Con- troller Board • Printer Con- troller Board 3 Fuse 4 Power Supply (3-1) 5 Finisher Driver Board (13-1) Action Be sure the interface cable (PN 11D0305) connector is properly connected. Turn the printer on. Measure the voltage between J4-7 (PWRON-IN) and J4-11 (GND) on the finisher board. If it does not measure approximately 5 V, replace the option controller board (PN 11D0326). If this does not fix the problem, replace the printer controller board. Remove the power supply and replace the fuse (PN 11D0343) if necessary. Turn the printer off and remove the finisher power cord. Be sure J1 is plugged into the finisher driver board. Plug the power cord into the finisher power supply and turn the printer on. Measure the DC power supply through connector J1. Be careful not to short it. If the voltage on J1-1 is not approximately 5 V, and the voltage on J1-2, -4 does not measure approximately +24 V, replace the power supply (PN 11D0076). Turn off the printer and check the lines and DC loads from J1 on the finisher driver board. There should be 0 V on J1-1 or J1-2, -4. If there is voltage, replace the finisher driver board (PN 11D0294). Diagnostic Information 2-14

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Diagnostic Information 2-14
4040 Finisher
Power Service Check
Be sure the correct voltage is available at the power outlet, and the
power plug is firmly plugged into the printer, paper deck, and fin-
isher.
2
Staple Tray
Paper Sensor,
PI-4, (5-1)
Check the voltage of J9-3 on the finisher driver
board. There should be 0 V when the sensor is
activated (PN 11D0071).
3
Finisher Driver
Board (13-1)
If there is still a problem, replace the finisher driver
board (PN 11D0294).
FRU
Action
1
Interface
Connector
Be sure the interface cable (PN 11D0305)
connector is properly connected.
2
•
Option Con-
troller Board
•
Printer Con-
troller Board
Turn the printer on. Measure the voltage between
J4-7 (PWRON-IN) and J4-11 (GND) on the finisher
board. If it does not measure approximately 5 V,
replace the option controller board (PN 11D0326).
If this does not fix the problem, replace the printer
controller board.
3
Fuse
Remove the power supply and replace the fuse
(PN 11D0343) if necessary.
4
Power Supply
(3-1)
Turn the printer off and remove the finisher power
cord. Be sure J1 is plugged into the finisher driver
board. Plug the power cord into the finisher power
supply and turn the printer on. Measure the DC
power supply through connector J1. Be careful not
to short it. If the voltage on J1-1 is not
approximately 5 V, and the voltage on J1-2, -4 does
not measure approximately +24 V, replace the
power supply (PN 11D0076).
5
Finisher Driver
Board (13-1)
Turn off the printer and check the lines and DC
loads from J1 on the finisher driver board. There
should be 0 V on J1-1 or J1-2, -4. If there is voltage,
replace the finisher driver board (PN 11D0294).