Service manual

EPSON Stylus Photo R340/350 Revision A
Disassembly and Assembly Disassembly 56
 Set the two positioning grooves ( ) of the Optical Tube Slot
onto the two guide pins. See Figure 2-26.
 Set the two guide pins ( ) of the Housing Slot into the
positioning holes.
Figure 2-27. Reinstalling the Housing Slot
 Tighten the screws to secure the Housing Slot in the order
shown in Figure 2-26.
 Make sure that the connector cable of the Tray/CD-R Sensor is
routed as shown in the figure below before placing the Main
Board Assy.
Figure 2-28. Routing the Connector Cable
Guide Pins
Tray/CD-R Sensor
Connector Cable
 Tighten the screws to secure the Main Board Assy. in the order
shown in Figure 2-25.
 Make sure there is no gap between the Housing Slot and the
Lower Housing.
Figure 2-29. Reinstalling the Main Board Assy.
 Set the positioning hole ( ) of the M/B Grounding Plate onto
the guide pin. See Figure 2-24.
 Tighten the screws to secure the M/B Grounding Plate in the
order shown in Figure 2-24.
 Connect the connector cables to the Main Board Assy. in the
order given in the table below.
Should be
No Gap
Lower Housing
Order
Connector
No.
Color
Number of
Pins
Destination
1 CN11 Black 4 CR Motor
2 CN4 White 3 PE Sensor
3 CN2 Red 4 Tray/CD-R Sensor
4 CN3 Black 3 PG Sensor
5 CN1 Gray 3 Power Supply Board
6 CN12 White 2 PG Motor
7 CN10 White 4 PF Motor
8 CN8 Black 15 Head Cable
9 CN7 Black 14 Head Cable
10 CN9 White 14 Head Cable