Xerox DFC155, Service Manual & Parts List

Page: 102 / 151

7-6 602E52970
7.2 DISASSEMBLY AND REPLACEMENT PROCEDURES
This section describes how to disassemble and replace the main units of the
facsimile machine.
WARNING: Should a procedure require one or more connectors to be unplugged
from the motherboard , we recommend the following:
1) before starting the procedure , print all configuration parameters
(both user-level and service-level) and the user's telephone list
2) upon completion of the procedure , restore the facsimile as refer-
enced in paragraph 7.2.21.
Before starting to disassemble the facsimile machine, unplug the power
cable from the wall outlet and the telephone line.
7.2.1 Wirings
Figures 7-7 and 7-8 show the motherboard connectors and their connection to the
fax machine assemblies, to facilitate re-installation of the replaced assemblies.
J1 Paper edge sensor J9 Keypad
J2 Document sensor J10 Interline motor
J3 Contact sensor (CIS) J11 Carriage motor
J4 Print head cleaner E.M. J13 Dynamic memory Reset
J6 Power supply J14 NCU board
J7-8 Print head
Fig. 7-7 Locating the connectors on the motherboard
J11
J10
J14
J13
J1 J2 J3 J4 J9 J8 J7 J6