Service manual

EPSON Stylus Photo 870/1270 Revision B

Disassembly And Assembly Disassembly Procedures 80

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.

NOTE:

The Main board and the Power Supply Board equipped with the and

Stylus Photo 1270 are the same, as listed below:

Main board: C304MAIN

Power Supply board: C298PSB/PSE

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 870: Seven screws

Stylus Photo 1270: Eight screws

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.

4. Disconnect all cables from the connectors on the main board and

power supply board.

CN1(AC Source connector on the power supply board)

CN5 (PE sensor)

CN6 (ASF HP sensor)

CN7 (ASF/Pump motor

CN8 (Head FFC1)

CN9 (Head FFC2)

CN10 (from the secondary side of the PS board)

CN11 (Panel Unit)

CN12 (PF Encoder Sensor)

5. Remove SHIELD PLATE, M/B Unit from the printer mechanism.

COVER, CABLE;B

CBS (3x6)

COVER, CABLE

CBS (3x6)