Actions Yes No
Step 7
Replace the ADF. See “ADF unit removal” on page 333.
Does this fix the situation?
Problem solved. Replace the controller
board. See “Controller
board removal” on
page 257.
Modem/fax card service check
Note: This service check should be used if the paper feeds and jams in the ADF. If the paper is not feeding into the
ADF see “ADF feed errors service check” on page 158.
Actions Yes No
Step 1
Is the phone line properly connected to the modem card and the wall jack?
Go to step 2. Go to step 3.
Step 2
Properly connect the phone line to the modem card and wall jack.
Did this fix the problem?
Problem resolved. Go to step 3.
Step 3
Test the ability of the phone line to send and receive calls.
Did the phone line work properly?
Go to step 5. Go to step 4.
Step 4
Use the MFP on a properly functioning phone jack.
Did this fix the problem?
Problem resolved. Go to step 5.
Step 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.
Step 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.
Step 7
Check the modem card ribbon cable for continuity.
Is there continuity?
Go to step 8. Replace the modem
card cable.
Step 8
Check the voltages from connector JMOD2 on the controller board. Check
Pin 1, 9, 12 and 13 for +3.3VDC. Pin 10 for +5VDC. Pins 2, 4, 5, 6, 7, and 8
are grounds.
Are the signals or voltages present?
Replace the fax card.
See “Modem removal”
on page 263.
Replace the controller
board. See “Controller
board removal” on
page 257.
7016
Diagnostic information
160
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