2-106 Service Manual
5060-4xx
DC power service check
The machine is partially operative, a motor turns, display is on or the Power On LED may be on or off.
6
Low voltage power supply - Turn the power off and
disconnect the LVPS at J35 on the system board.
Measure the voltages on J35-3 and J35-4. The voltage
should measure approximately +5 V dc.
Is there approximately +5 V dc on any of these
connector pins?
Replace the
“System board”
on page 4-72
Replace the
“LVPS
assembly” on
page 4-46
Step Actions and questions Yes No
1 Does the printer beep 5 times and the operator panel
display all diamonds?
Go to “Operator
panel LCD/
status LED/
buttons service
check” on
page 2-125
Go to step 2
2
DC power to system board - Turn the power off and
disconnect the LVPS cable to J35 on the system board.
Turn the power on and check the following voltages on
the LVPS cable:
Note: All voltages are approximate values.
Are the voltages correct?
Go to step 3 Replace the
“LVPS
assembly” on
page 4-46
3
Unplug all cables from the system board, except J6,
J35, J37. See “System board - non-network” on
page 5-6 or “System board - network” on page 5-7.
Does the printer power up and display a message?
Go to step 4 Replace the
“System board”
on page 4-72.
Step Actions and questions Yes No
J35-1 +3.3 V dc
J35-2 +3.3 V dc
J35-3 +5 V dc
J35-4 +5 V dc
J35-5 +24 V dc
J35-6 +24 V dc
J35-7 +24 V dc
J35-8 +3.3V dc
J35-9 Ground
J35-10 Ground
J35-11 Ground
J35-12 Ground
J35-13 Ground
J35-14 Ground
J35-15 Ground
J35-16 Ground
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