Service manual

EPSON Stylus Color 400 Service Manual

Rev. A

3.2.2 Removing the Board Assembly

Since the main board(C206 Main) and power supply circuit board(C206 PSB) are built in different

bracket from the printer mechanism, remove the whole bracket from the printer mechanism.

1. Remove the housing.(Refer to 3.2.2)

2. Remove the 5 screws(No.1) securing the “M/B Shield plate” on the printer mechanism.

3. Pull out the “M/B Shield Plate” a little bit and remove cables which are hung on the A and B holders

as you can see in the figure below.

Then, take all cables out of connectors on the C206 main board. (CN11 black, CN4 yellow, CN5 white,

CN3 black and CN8 FFC)

4. After removing all the cables from the C206 main board, detach the “Shield plate M/B” completely

from the printer mechanism.

5. When removing each board unit from the “M/B Shield plate”, remove each screw securing each units

and shield plate. [C206 Main: 10screws (7 No.1 screws, 3 No.6 screws), C206 PSB/PSE:

4screws(No.1)] Refer to the next page for the figure.

Also, when removing the power supply board(C206 PSB), disconnect and also remove

the cable connecting to the Main board (CN6, 7 and 10 with lock device).

Since connector CN 6,7 and 10 are the connector with lock device, make sure to release the

lock before removing the cable. Also, make sure to lock when installing these cables.

When connecting cables to the connectors, each cable never cross each other in this printer.

So, if there are two connectors sitting next to each other, the cable from right should be connected

to the right connector and the cable from the left should be connected to the left one.

WORK POINT

[Cable Holder A and B]

M/B Shield Plate

(No.1)

Figure 3-3. Removing the M/B Shield Plate