2-96
Service Manual
7541-03x
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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.
Summary of Contents for X925 7541-03 series
Page 14: ...xiv Service Manual 7541 03x Go Back Previous Next ...
Page 188: ...3 50 Service Manual 7541 03x Go Back Previous Next ...
Page 306: ...4 118 Service Manual 7541 03x Go Back Previous Next 5 Remove the screw C 6 Remove the screw D ...
Page 307: ...Repair information 4 119 7541 03x Go Back Previous Next 7 Remove the screw E ...
Page 404: ...5 4 Service Manual 7541 03x Go Back Previous Next Rip Board connectors ...
Page 410: ...5 10 Service Manual 7541 03x Go Back Previous Next Printhead controller connectors ...
Page 419: ...Locations 5 19 7541 03x Go Back Previous Next Engine board connectors ...
Page 438: ...5 38 Service Manual 7541 03x Go Back Previous Next ...
Page 440: ...6 2 Service Manual 7541 03x Go Back Previous Next ...
Page 442: ...7 2 Service Manual 7541 03x Go Back Previous Next Assembly 1 Covers ...
Page 444: ...7 4 Service Manual 7541 03x Go Back Previous Next Assembly 2 Flatbed and ADF ...
Page 446: ...7 6 Service Manual 7541 03x Go Back Previous Next Assembly 3 Flatbed ...
Page 448: ...7 8 Service Manual 7541 03x Go Back Previous Next Assembly 4 ADF 1 ...
Page 450: ...7 10 Service Manual 7541 03x Go Back Previous Next Assembly 5 ADF 2 ...
Page 452: ...7 12 Service Manual 7541 03x Go Back Previous Next Assembly 6 Duplex components 1 ...
Page 454: ...7 14 Service Manual 7541 03x Go Back Previous Next Assembly 7 Duplex components 2 ...
Page 456: ...7 16 Service Manual 7541 03x Go Back Previous Next Assembly 8 Paper exit ...
Page 458: ...7 18 Service Manual 7541 03x Go Back Previous Next Assembly 9 Base 1 ...
Page 460: ...7 20 Service Manual 7541 03x Go Back Previous Next Assembly 10 Base 2 ...
Page 462: ...7 22 Service Manual 7541 03x Go Back Previous Next Assembly 11 Base 3 ...
Page 466: ...7 26 Service Manual 7541 03x Go Back Previous Next Assembly 13 Electrical 1 ...
Page 468: ...7 28 Service Manual 7541 03x Go Back Previous Next Assembly 14 Electrical 2 ...
Page 470: ...7 30 Service Manual 7541 03x Go Back Previous Next Assembly 15 Upper assembly ...
Page 474: ...7 34 Service Manual 7541 03x Go Back Previous Next Assembly 17 Paper trays ...
Page 476: ...7 36 Service Manual 7541 03x Go Back Previous Next Assembly 18 Fuser ...
Page 478: ...7 38 Service Manual 7541 03x Go Back Previous Next Assembly 19 550 sheet option feeder covers ...
Page 480: ...7 40 Service Manual 7541 03x Go Back Previous Next Assembly 20 550 sheet option feeder base ...
Page 484: ...7 44 Service Manual 7541 03x Go Back Previous Next Assembly 22 550 sheet option feeder tray ...
Page 500: ...I 14 Service Manual 7541 03x ...