2-92
Service Manual
7541-03x
Power supply (Dead machine) service check
Note:
Before proceeding, make sure that this is not an issue with the display. Turn the machine on. If the
machine’s fans, and motors start up, it could be an issue with the display.
Step
Action and questions
Yes
No
1
Is the power cord connected to the printer and the wall
outlet?
Go to step 3.
Go to step 2
2
Connect the power cord to the printer and wall outlet.
POR the printer. Did it start?
Problem solved
Go to step 3.
3
Try a different power cord. Did this fix the problem.
Problem solved
Go to step 4.
4
Verify that the voltage to the machine is within
spec.110v, ac +/- 10%, 220v, ac +/- 10%. Is the voltage
in within spec?
Go to step 5.
Try a different
power outlet.
5
Verify that the cables connecting the power inlet, the
switch and secondary power supply are properly
connected.
Go to step 6.
Properly connect
the cables.
6
Verify that the cables connecting CN02 on the
secondary power supply unit to CN03 on the LVPS are
connected properly.
Go to step 7.
Properly connect
the cables.
7
Replace the switch. Did this fix the problem.
Problem solved
Go to step 8.
8
Are the fuses blown on either supply?
Go to step 9.
Go to step 10.
9
Replace the power supply with the blown fuse. Did this
fix the problem?
Problem solved
Go to step 10
10
Check CN03 on the scanner power supply for the
following voltages and grounds:
Pins 1,and 2 should be +5V dc
Pins 2 and 4 should be + 24V dc
Pins 5,6,7, and 8 are GND
Are the voltages correct?
Go to step 11.
Replace the
scanner power
supply. See
“Scanner power
supply removal”
on page 4-58
.
11
Replace the RIP board. See
“RIP board removal” on
page 4-73
. Did this fix the problem
Problem solved.
Go to step 12
12
Check CN03 on the low voltage power supply for the
following voltages and grounds:
Pins 4,and 8 should be +5V dc
Pins 2 and 6 should be + 24V dc
Pins 1,3,4, and 7 are GND
Are the voltages correct?
Go to step 13
Replace the
LVPS. See
“Low
volt power
supply removal”
on page 4-51
.
13
Replace the printhead controller board. See
“Printhead controller board removal” on page 4-37
.
Did this fix the problem?
Problem solved.
Contact you next
level support.
Содержание X925
Страница 14: ...xiv Service Manual 7541 03x ...
Страница 182: ...3 50 Service Manual 7541 03x ...
Страница 228: ...4 46 Service Manual 7541 03x 5 Remove the two screws C 6 Remove the two screws D ...
Страница 229: ...Repair information 4 47 7541 03x 7 Remove the one screw E 8 Remove the four screws F on top ...
Страница 230: ...4 48 Service Manual 7541 03x 9 Remove the two screws G on top 10 Remove the two screws H ...
Страница 231: ...Repair information 4 49 7541 03x 11 Remove one screw I 12 Remove the screw J ...
Страница 234: ...4 52 Service Manual 7541 03x 4 Remove the three screws B securing the bottom of power supply to the power supply cage ...
Страница 242: ...4 60 Service Manual 7541 03x 6 Remove the screw C from the lower left corner of the scanner power supply ...
Страница 263: ...Repair information 4 81 7541 03x 8 Push the fan cage back 9 Remove the two screws E in the upper right corner E ...
Страница 285: ...Repair information 4 103 7541 03x 4 Disconnect the fan cable B from the MDCONT engine board ...
Страница 300: ...4 118 Service Manual 7541 03x 5 Remove the screw C 6 Remove the screw D ...
Страница 301: ...Repair information 4 119 7541 03x 7 Remove the screw E ...
Страница 312: ...4 130 Service Manual 7541 03x 3 Remove the two screws A securing the motor frame to the ADF main feeder unit ...
Страница 342: ...4 160 Service Manual 7541 03x 4 Pull the two tabs B back to release the sensor from the mounting bracket ...
Страница 347: ...Repair information 4 165 7541 03x 4 Remove the hinge 5 Pull the inner top cover away from the ADF main feeder ...
Страница 351: ...Repair information 4 169 7541 03x 4 Lift the cover up and slide the tab on the cover out of the ADF assembly ...
Страница 358: ...4 176 Service Manual 7541 03x 6 Lift and pull the tray away from the printer ...
Страница 368: ...4 186 Service Manual 7541 03x 5 Take the MPF shaft out 6 Remove the MPF roll ...
Страница 392: ...5 4 Service Manual 7541 03x Rip Board connectors ...
Страница 398: ...5 10 Service Manual 7541 03x Printhead controller connectors ...
Страница 407: ...Locations 5 19 7541 03x Engine board connectors ...
Страница 426: ...5 38 Service Manual 7541 03x ...
Страница 428: ...6 2 Service Manual 7541 03x ...
Страница 430: ...7 2 Service Manual 7541 03x Assembly 1 Covers ...
Страница 432: ...7 4 Service Manual 7541 03x Assembly 2 Flatbed and ADF ...
Страница 434: ...7 6 Service Manual 7541 03x Assembly 3 Flatbed ...
Страница 436: ...7 8 Service Manual 7541 03x Assembly 4 ADF 1 ...
Страница 438: ...7 10 Service Manual 7541 03x Assembly 5 ADF 2 ...
Страница 440: ...7 12 Service Manual 7541 03x Assembly 6 Duplex components 1 ...
Страница 442: ...7 14 Service Manual 7541 03x Assembly 7 Duplex components 2 ...
Страница 444: ...7 16 Service Manual 7541 03x Assembly 8 Paper exit ...
Страница 446: ...7 18 Service Manual 7541 03x Assembly 9 Base 1 ...
Страница 448: ...7 20 Service Manual 7541 03x Assembly 10 Base 2 ...
Страница 450: ...7 22 Service Manual 7541 03x Assembly 11 Base 3 ...
Страница 452: ...7 24 Service Manual 7541 03x Assembly 12 Paper feed ...
Страница 454: ...7 26 Service Manual 7541 03x Assembly 13 Electrical 1 ...
Страница 456: ...7 28 Service Manual 7541 03x Assembly 14 Electrical 2 ...
Страница 458: ...7 30 Service Manual 7541 03x Assembly 15 Upper assembly ...
Страница 460: ...7 32 Service Manual 7541 03x Assembly 16 Printhead controller board cables ...
Страница 462: ...7 34 Service Manual 7541 03x Assembly 17 Paper trays ...
Страница 464: ...7 36 Service Manual 7541 03x Assembly 18 Fuser ...
Страница 466: ...7 38 Service Manual 7541 03x Assembly 19 550 sheet option feeder covers ...
Страница 468: ...7 40 Service Manual 7541 03x Assembly 20 550 sheet option feeder base ...
Страница 470: ...7 42 Service Manual 7541 03x Assembly 21 550 sheet option feeder paper feed ...
Страница 472: ...7 44 Service Manual 7541 03x Assembly 22 550 sheet option feeder tray ...
Страница 488: ...I 14 Service Manual 7541 03x ...