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Service Manual
7526
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Dead printer service check
A dead printer is a condition where the display is blank, the LED on the operator panel is off, no fans turn, no
motors turn, and the fuser lamp does not come on.
If a 550-sheet option assembly is installed, remove the option, and check the base printer for correct operation.
If the base printer operates correctly, replace the 550-sheet option assembly.
Warning:
Observe all necessary ESD precautions when removing and handling the system board or any
installed option cards or assemblies. See
“Handling ESD-sensitive parts” on page 4-2
.
Remove any input and output paper handling options from the printer.
Step
Questions / actions
Yes
No
1
Check the AC line voltage.
Is the line voltage correct?
Go to step 2.
Inform the customer.
2
Is the AC line cord damaged?
Replace the line cord.
Go to step 3.
3
Check the system board for +5 V dc between
JLVPS2 pin 1 and ground.
Is the voltage correct?
Replace the system board.
See
.
Go to step 4.
4
Is the JLVPS2 cable correctly installed at
JLVPS2 on the system board?
Go to step 5.
Reseat the JLVPS2 cable.
5
1. Turn the printer off.
2. Disconnect the JLVPS2 cable from the
system board.
3. Turn the printer on.
4. Measure the voltage between the JLVPS2
cable pin 1 and the JLVPS2 pin 14 (black
wire).
Does this measure approxi5 V dc?
Go to step 6.
Replace the LVPS. See
“Low-voltage power
supply (LVPS) removal”
on page 4-124
.
CAUTION
When you see this symbol, there is a danger from hazardous voltage in the area of the product
where you are working. Unplug the product before you begin, or use caution if the product
must receive power in order to perform the task.
Содержание X734DE
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Страница 15: ...Notices and safety information xv 7526 Go Back Previous Next...
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Страница 254: ...3 58 Service Manual 7526 Go Back Previous Next Printer base...
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Страница 277: ...Repair information 4 11 7526 Go Back Previous Next d Touch Quick Test A page similar to this one prints...
Страница 293: ...Repair information 4 27 7526 Go Back Previous Next 4 Remove the five larger screws B and the two smaller screws C...
Страница 300: ...4 34 Service Manual 7526 Go Back Previous Next 4 Remove the five larger screws B and the two smaller screws C...
Страница 316: ...4 50 Service Manual 7526 Go Back Previous Next 7 Remove the six screws G 8 Remove the screw H in front...
Страница 324: ...4 58 Service Manual 7526 Go Back Previous Next 6 Grasp the auger shaft C and remove it C...
Страница 328: ...4 62 Service Manual 7526 Go Back Previous Next 5 Remove the two screws C 6 Remove the cartridge cooling fan C...
Страница 359: ...Repair information 4 93 7526 Go Back Previous Next 14 Remove the two screws O on the inside O P...
Страница 360: ...4 94 Service Manual 7526 Go Back Previous Next 15 Remove the seven screws R securing the EP drive R R First R R...
Страница 398: ...4 132 Service Manual 7526 Go Back Previous Next 3 Insert the motor into the frame 4 Replace the screws C...
Страница 422: ...4 156 Service Manual 7526 Go Back Previous Next f Touch Quick Test A page similar to this one prints...
Страница 464: ...4 198 Service Manual 7526 Go Back Previous Next 4 Remove the five larger screws B and the two smaller screws C...
Страница 482: ...4 216 Service Manual 7526 Go Back Previous Next 9 Remove the two screws G G 18B1236...
Страница 495: ...Repair information 4 229 7526 Go Back Previous Next 5 Lift the cover from the ADF...
Страница 513: ...Repair information 4 247 7526 Go Back Previous Next 5 Grasp the cover on the lower right and pull up...
Страница 571: ...Connector locations 5 1 7526 Go Back Previous Next 5 Connector locations Locations printer base...
Страница 572: ...5 2 Service Manual 7526 Go Back Previous Next Connectors System board...
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Страница 592: ...7 4 Service Manual 7526 Go Back Previous Next Assembly 2 Front 5 2 3 4 7 9 11 A B D 8 10 12 E 13 C G F F 1 6...
Страница 594: ...7 6 Service Manual 7526 Go Back Previous Next Assembly 3 Right 1 2 3 4 5 6...
Страница 596: ...7 8 Service Manual 7526 Go Back Previous Next Assembly 4 Rear...
Страница 602: ...7 14 Service Manual 7526 Go Back Previous Next Assembly 8 Covers scanner 6 8 9 10 5 7 11 14 1 2 13 3 4 12...
Страница 604: ...7 16 Service Manual 7526 Go Back Previous Next Assembly 9 Automatic document feeder ADF...
Страница 606: ...7 18 Service Manual 7526 Go Back Previous Next Assembly 10 Flatbed scanner...
Страница 612: ...7 24 Service Manual 7526 Go Back Previous Next Assembly 14 Options and features...
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