3.2.11 Removing the C166MAIN Board Assembly
1. Remove the rear/frontedge guide assembly,front cover, papereject assembly, rear/front tractor
unit, and printer cover (see Section 3.2.1)
2. Remove the panelboard (see Section 3.2.2)and upper housingassemblies (see Section 3.2.7).
3. Disconnect the following connectorsfrom the C166 MAIN board assembly.
CN3 (10-pin , blue) CN4 (3-pin,white) CN5 (3-pin, black)
CN6 (2-pin,white) CN7 (4-pin, whiteFFC) CN8 (18-pin, white FFC)
CN9 (16-pin,white FFC) CN10 (4-pin, blue) CN11 (5-pin, blue)
CN12 (4-pin, white) CN13 (4-pin, black) CN15 (22-pin FFC)
❇Disconnectthe cables for CN10and CN11 after releasingthe connector lock.
❇Disconnectthe cable for CN3by pushing down theconnector lock.
4. Remove the 2 CBSscrews ( 3 ×12, F/Zn)securing the upper connectorcover.
5. Remove 5 CBB screws (3×12, F/Zn) and 1 CBClamitate screw (3×8, F/Zn ) securing theC166
MAIN board assemblyto the lowerhousing assembly.
6. Remove the optionI/F cage from the C166MAIN board by releasingthe hooks which is fixing it to the
C166 MAIN board.
7. Remove the C166MAIN board assembly.
Notice the location of the CBC lamitite screw (3 ×8, F/Zn). Refer to the above figure.
Lock CN10 and CN11 by pushing down each connector’s lock after inserting the connector cable.
The tightening torque for the CBB (3 ×12, F/Zn) screw = 0.78 ~ 0.98 Nm (8~ 10 Kg f - cm)
The tightening torque for CBB (3 ×8, F/Zn) screw = 0.78 ~ 0.98 Nm (8 ~ 10 Kg f - cm)
If you replace the main board, adjust the bidirectional print alignment and run the default setting
program. Refer to Chapter 4.
C 166 MAIN Baord Assembly
Figure 3-37 Removingthe C166 MAIN Baord Assembly
Disassembly andAssembly FX-2170 Service Manual
3-24 Rev.A