Service manual

EPSON Stylus Photo R260/R265/R270, R360/R380/R390 Revision B
Disassembly/Assembly Removing Control Boards 80
4.3.3 Disassembling the Main Board Unit
 Main Board Unit disassembly
1. Remove the screw and remove the MB Frame from the Main Board.
• Screw : C.B.S. M3x10 (tightening torque: 5-7 kgf.cm)
Figure 4-59. Removing the MB Frame
2. Remove the screw and remove the Main Board from the MB Cover.
• Screw : C.B.S. M3x10 (tightening torque: 7-9 kgf.cm)
3. Remove the two screws and remove the CB Support Shield Plate. (R360/
R380/R390 only)
• Screw : C.B.S. M3x8 (tightening torque: 7-9 kgf.cm)
Figure 4-60. Removing the MB Cover/CB Shield Plate Support
 Install the Main Board Unit following the steps below.
1. Install the MB Frame to the the Lower Housing, and make
sure that the Ground Plate MB contacts with the Main Frame.
(Screw (1) in Fig.4-54)
2. Install the Main Board Unit screwing it in the order given in
Fig.4-54.
3. Install the Main Board Unit to the MB Frame. (Fig.4-59)
 After installing the Main Board, check that the Ground Plate
MB contacts with the Main Frame.
Figure 4-57. Reinstalling the Main Board Unit(1)
 Insert the left and right front screw holes of the Main Board
Unit over the guide pins of the Middle Housing before screwing
the unit.
Figure 4-58. Reinstalling the Main Board Unit (2)
Main Board Unit
MB
Frame
[Rear side]
Main Frame
Ground Plate MB
MB Frame
: Screw Hole
: Guide Pin
[Front side]
C H E C K
P O I N T
The Main Board Unit differs in shape and etc. between the R260/
R265R270 and the R360/R380/R390, however, the removal
procedure is almost the same. Here, the procedure is illustrated
mainly using the R360/R380/R390 showing the difference as
necessary.
MB Frame
Main Board
MB Cover
CB Support
Shield Plate
Main Board
R260/R265/
R270