Service manual

Epson Stylus Photo PX650/TX650/TX659/PX660/PX660 Premium/Artisan 635 Revision C
DISASSEMBLY AND ASSEMBLY Removing the Circuit Boards 79
Confidential
2. Pull out the Head FFC from the ferrite core.
3. Peel off the acetate tape and remove the ferrite core.
4. Remove the screws (x6) that secure the Main Board Unit.
5. Lift the rear side of the Main Board Unit, and remove it while avoiding from the
rib of the Card Slot Cover.
Figure 4-38. Removing the Main Board Unit (2)
 When installing the Main Board Unit, align the positioning
holes (x2) of the Main Board Unit with the dowels (x2) of the
Card Slot Cover. (See Figure 4-38.)
 When installing the Main Board Unit, put the Head FFC
through the ferrite core, align the ferrite core with the line
mark of the Shield Plate M/B Upper and secure it with acetate
tape. (See Figure 4-38.)
 Tighten the screws in the order given in Fig. 4-38.
C.B.P. 3x10 (6±1 Kgfcm)
C.B.S. 3x6 (8±1 Kgfcm)
Acetate tape (50mm)
Ferrite core
Line mark
Positioning hole and dowel
Rib of Card Slot Cover
1
2
3
4
5
6
Head FFC
Rear side of printer
 See the following for routing the cables to the Main Board Unit.
Figure 4-39. Routing the Cables
Cable/FFC Hook/Rib Double-sided tape CN No.
Power Supply Unit cable Rib A --- CN3
CDR Sensor cable Rib B --- CN4
PF Motor cable Hook A --- CN13
CR Motor cable Hook B --- CN14
PE Sensor cable Hook C --- CN6
APG Sensor cable Hook C --- CN7
PF Encoder FFC --- x2 CN8
Rib of Lower Housing
Double-sided tape
PF Encoder FFC
Power Supply Unit cable
CR Motor cable
PF Motor cable
CDR Sensor cable
APG Sensor cable
PE Sensor cable
Hook A
Hook B
Hook C
Rib B
Rib A