Circuit Board Assembly Removal - Epson Stylus PHOTO 890 Service Manual

EPSON Stylus Photo 890/1280/1290

4.2.2 Circuit Board Assembly Removal

Since BOARD ASSEMBLY, MAIN and BOARD ASSEMBLY, POWER SUPPLY
are built in a bracket separated from the Printer Mechanism, they can be removed as
one unit.
1. Remove HOUSING. (Refer to Section 4.2.1.)
2. Remove the screws (CBS, 3x6) securing the M/B Unit to the printer mechanism.
Refer to Figure 4-3.
Stylus Photo 890: 7 screws
Stylus Photo 1290: 8 screws
COVER, CABLE
CBS (3x6)
CBS (3x6)
Figure 4-3. Removing the M/B Shield Plate
3. Lifting up SHIELD PLATE, M/B Unit a little, remove COVER, CABLE and
COVER, CABLE; B together with the cables.
DISASSEMBLY AND ASSEMBLY
COVER,
CBS (3x6)
CBS (3x6)
4. Disconnect all cables from the connectors on the main board and power supply
board.
n
CN1(AC Source connector on the power supply board)
n
CN5 (PE sensor)
n
CN6 (ASF sensor)
n
CN15 (ASF/Pump motor)
n
CN8 (Head FFC)
n
CN9 (Head FFC)
n
CN19 (from the secondary side of the PS board)
n
CN11 (Panel Unit)
n
CN12 (PF Encoder Sensor)
5. After removing BOARD ASSY, MAIN without cables, remove SHIELD PLATE,
M/B Unit from the printer mechanism.
Disassembly Procedures
Revision C
84