Removing The C166 Psb/E Board Assembly - Epson 2070 - LQ B/W Dot-matrix Printer Service Manual

LQ-2070 Service Manual

3.2.11 Removing the C166 PSB/E Board Assembly

1. Remove the rear/front edge guide assembly, front cover, paper eject assembly, rear/front tractor
unit, and printer cover.
2. Remove the panel board (see Section 3.2.2) and upper housing assembly (see Section 3.2.7).
Remove the 5 CBB screws (3 × 12, F/Zn) securing the C166 PSB/E board assembly.
3.
4. Disconnect the cable for CN3 on the C186 MAIN board assembly.
5. Disconnect the cable for the fan motor from CN3 on the C166 PSB/E board assembly.
6. Remove the C166 PSB/E board assembly while pulling up the fan motor.
Figure 3-36 Removing the C166 PSB/E Board Assembly
Insert the cable for CN2 (C166 PSB/E board assembly side) under the fan motor.
The tightening torque for the CBB screw (3 × 12, F/Zn) =
Notice the direction for mounting the fan motor. Refer to the following figure.
Figure 3-37 Direction for Mounting the Fan Motor
Rev.A
CN3 Connector
Assembly Notes
Disassembly and Assembly
0.78 ~ 0.98 Nm (8 ~ 10 Kg f- cm)
3-25