Diagnostic Information
10
4012-0XX
Operator Panel Service Check
FRU Action
1
Power Supply
Disconnect J2 from the fax board and
check the following voltages on the power
supply cable:
J2-1 to GND = +5 V dc
J2-3 to GND = +34 V dc
If you do not have correct voltage, replace
the power supply. Be sure to unplug the
machine before you reconnect the power
supply to the fax board.
2
Operator Panel Board
Operator Panel Cable
Perform the Operator Panel Test; see
“Operator Panel Test” on page 24
If some of the buttons do not work, check
the contacts on the back of the keypads
and the surface of the lands on the opera-
tor panel board. Replace the keypads as
necessary. Check the continuity of the
operator panel cable before replacing the
operator panel board.
3
Fax Board
Turn the printer on. Check for +5 V dc at
J4-3 on the fax board.
Summary of Contents for Medley 4012-005
Page 9: ...ix 4012 0XX Chinese Safety Information Korean Safety Information ...
Page 59: ...Parts and Test Point Locations 50 4012 0XX Fax Board J4 J5 J6 J7 J8 J9 J10 J11 J12 J1 J2 J3 ...
Page 66: ...4012 0XX 57 Assembly 1 Covers 9 19 1 20 21 3 6 4 10 5 15 8 2 11 22 7 ...
Page 68: ...4012 0XX 59 Assembly 2 Frame 2 9 10 3 4 1 8 8 6 5 7 ...
Page 70: ...4012 0XX 61 Assembly 3 Operator Panel 9 3 10 2 1 6 5 4 8 7 11 ...
Page 72: ...4012 0XX 63 Assembly 4 Printer Paper Feed Assembly 4 6 7 9 8 1 2 3 5 ...
Page 74: ...4012 0XX 65 Assembly 4 Printer Paper Feed Assembly cont 11 13 12 11 10 14 ...
Page 76: ...4012 0XX 67 Assembly 5 Carrier 3 1 4 6 1 2 5 ...
Page 78: ...4012 0XX 69 Assembly 6 Carrier Transport 1 2 4 5 3 6 7 ...
Page 80: ...4012 0XX 71 Assembly 7 Maintenance Station 3 1 4 2 ...
Page 82: ...4012 0XX 73 Assembly 8 Scanner 3 6 9 10 7 1 4 2 8 5 14 12 13 ...
Page 84: ...4012 0XX 75 Assembly 9 Electronics ...
Page 86: ...4012 0XX 77 Assembly 10 Automatic Sheet Feed ASF 10 4 2 7 6 11 1 8 7 9 3 5 ...