2-52
Service Manual
7013-XXX
Modem / fax card service check
Step
Questions / actions
Yes
No
1
Is the phone line properly connected to the
modem card and the wall jack?
Go to step 3.
Go to step 2.
2
Properly connect the phone line to the
modem card and wall jack.
Did this fix the problem?
Problem resolved.
Go to step 3.
3
Test the phone line’s ability to send and
receive calls.
Did the phone line work properly?
Go to step 5.
Go to step 4.
4
Use the MFP on a properly functioning
phone jack.
Did this fix the problem?
Problem resolved.
Go to step 5.
5
Is the modem card ribbon cable properly
connected to the controller board at JMOD2
and the modem card?
Go to step 7.
Go to step 6.
6
Properly connect the modem card cable to
the modem card and controller board.
Did this fix the problem?
Problem resolved.
Go to step 7.
7
Check the modem card ribbon cable for
continuity. Is there continuity?
Go to step 8.
Replace the modem card
cable.
8
Check the voltages from connector J39 on
the controller board. Check Pin 4 and 5 for
+3.3VDC. Pin 7 for +5VDC. 9, 11, 13, 15,
17, and 19 are grounds. Are the signals or
voltages present?
Replace the modem card.
Replace the controller
board. See
“Controller
board removal” on
page 4-13
.
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Summary of Contents for 363dn - X B/W Laser
Page 13: ...Notices and safety information xiii 7013 XXX All manuals and user guides at all guides com...
Page 14: ...xiv Service Manual 7013 XXX All manuals and user guides at all guides com...
Page 20: ...xx Service Manual 7013 XXX All manuals and user guides at all guides com...
Page 92: ...2 58 Service Manual 7013 XXX All manuals and user guides at all guides com...
Page 138: ...3 46 Service Manual 7013 XXX All manuals and user guides at all guides com...
Page 232: ...7 2 Service Manual 7013 XXX Assembly 1 Covers All manuals and user guides at all guides com...
Page 234: ...7 4 Service Manual 7013 XXX Assembly 2 Scanner All manuals and user guides at all guides com...
Page 250: ...I 8 Service Manual 7013 XXX All manuals and user guides at all guides com...