Diagnostic information
2-71
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 2.
Go to step 3.
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 system 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 system 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 JMOD2
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 fax card. See
“Fax card removal” on
page 4-102
.
Replace the controller
board. See
Y112730-2
Содержание d-Color MF920
Страница 1: ...SERVICE MANUAL Copiatrici Copiers d Color MF920 d Color MF923 Code Y112730 2...
Страница 10: ...x Service Manual Y112730 2...
Страница 15: ...Notices and safety information xv Y112730 2...
Страница 16: ...xvi Service Manual Y112730 2...
Страница 18: ...xviii Service Manual Y112730 2...
Страница 22: ...xxii Service Manual Y112730 2...
Страница 124: ...2 80 Service Manual Y112730 2...
Страница 198: ...3 74 Service Manual Y112730 2...
Страница 203: ...Repair information 4 5 4 Remove the three screws A on the rear side of the left cover A Y112730 2...
Страница 211: ...Repair information 4 13 9 Remove the two springs D 10 Remove the two screws E on the bottom Y112730 2...
Страница 234: ...4 36 Service Manual 4 Snap the new gear onto the shaft D The installation is the same as the old gear Y112730 2...
Страница 288: ...4 90 Service Manual 6 While holding the op panel mounting assembly remove the op panel bezel cover Y112730 2...
Страница 302: ...4 104 Service Manual Y112730 2...
Страница 305: ...Locations 5 3 Interior view Y112730 2...
Страница 306: ...5 4 Service Manual Printer boards Controller Board Y112730 2...
Страница 317: ...Locations 5 15 HVPS Y112730 2...
Страница 319: ...Locations 5 17 LVPS Y112730 2...
Страница 324: ...6 2 Service Manual Y112730 2...
Страница 331: ...Index I 7 Y112730 2...
Страница 332: ...UPDATINGSTATUS DATE UPDATEDPAGES PAGES CODE 09 2010 1ST EDITION 332 Y112730 2...