Removing The Circuit Board Assembly - Epson Stylus COLOR 760 Service Manual

EPSON Stylus COLOR 760

4.2.2 Removing the Circuit Board Assembly

Since the Main Board and Power Supply Circuit Board are built in a separate
bracket from the Printer Mechanism, remove the whole bracket from the printer
mechanism.
1. Remove the Upper Housing. (Refer to 4.2.2)
2) Remove the 7 screws(No.1) securing the M/B Shield Plate on the printer
mechanism. Refer to Figure 4-3.
No.1 Screw
Holder A
No.1 Screw
Figure 4-3. Removing the M/B Shield Plate
3) Pull out the "M/B Shield Plate Assembly" a little bit and remove cables
which are hung on the A and B holders as you can see in Figure 4-3.
Then, take all following cables out of connectors on the main board.
Disassembly and Assembly
No.1 Screws
Holder B
No.1 Screws
Disassembly Procedures
n
CN1(AC Source on PS board), CN5 (PE sensor),
CN6 (ASF HP sensor),
CN8 (Head FFC1), CN9 (Head FFC2), CN10 (PS Cable),
CN11 (Control Panel), CN12 (PF Encoder Sensor)
After removing all cables from the Main Board, detach the Shield Plate M/B
Assembly completely from the printer mechanism.
4) When removing each Circuit Board unit from the "M/B Shield plate",
remove the screws securing each unit and shield plate.
n
C298 Main Board : Total 12screws
(No.1 screw: 9screws)
(No.5 screw: 3screws)
n
C298 PS Board : Total 4screws (No.1 screw: 4 screws)
Refer to the next page for Figure 4-4. Also, when removing the Power Supply
Board, remove the cable connecting to the Main Board (CN10 with lock device)
Revision C
79