Adjustment - Epson FX-980 Service Manual

FX-980
3.2.11 Removing the C276 Main Board Assembly


Changed points:

The C276 Main Board in the FX-980 can be removed without
removing the I/F cage, so the operation for removing the cage is
eliminated.

Step 5 (I/F cover removal) is added. (This operation is not new
but omitted in the FX-2170 Service Manual.)
1. Remove the rear / front edge guide assembly, front cover, paper
eject assembly, rear / front tractor unit, and printer cover (see
Section 3.2.1).
2. Remove the panel board (see Section 3.2.2).
3. Disconnect the following connectors from the C276 Main Board
assembly.
CN3 (10-pin, white)
CN5 (3-pin, black)
CN7 (4-pin white FFC)
CN9 (16-pin, white FFC)
CN11 (5-pin, blue)
CN13 (4-pin, black)
CN16 (2-pin, yellow)
NOTE: Disconnect the cables for CN10 and CN11 after
releasing the connector lock.
NOTE: Disconnect the cable for CN3 by pushing down the
connector lock.
4. Remove the 3 CBS screws (3 x 12, F/Zn) securing the upper
connector cover.
Disassembly and Assembly
CN4 (3-pin, white)
CN6 (2-pin, white)
CN8 (18-pin, white FFC)
CN10 (4-pin, blue)
CN12 (2-pin, blue)
CN15 (22-pin, FFC)
Printer Disassembly and Assembly
5. Remove the 2 screws securing the I/F cover and remove the I/F
cover.
6. Remove the 5 CBB screws (3 x 12, F/Zn) and 1 CBC lamitite screw
(3 x 8, F/Zn) securing the C276 Main Board assembly to the lower
housing assembly.
7. Remove the C276 Main Board.
Figure 3-37. Removing the C276 Main Board Assembly
If you replace the main board, perform the Bi-
directional adjustment and run the default setting
program.
Revision A
42