C214 Main Board Removal - Epson LQ-670 Service Manual

3.2.3 C214 MAIN Board Removal

1. Remove [HOUSING, UPPER] (See Section 3.2.1)
2. Remove Printer Mechanism (See Section 3.2.2)
3. Remove seven screws (5: CBB/M3x12, 2: CBS/M3x4) fixing the shield plate, and remove
the shield plate.
4. Remove two screws (CBS/M3x12) fixing [COVER, CONNECTOR, UPPER], and remove
[COVER, CONNECTOR, UPPER].
5. Disconnect the cable of power supply unit from a connector CN3 on C214 MAIN board.
6. Remove four screws (CBB/M3x12) fixing C214 MAIN board, and remove C214 MAIN
board together with [GROUND PLATE, I/F, UPPER].
7. Remove [GROUND PLATE, I/F, UPPER] from C214 MAIN board.
8. Remove [GUIDE, I/F BOARD;B] from C214 MAIN board by unhooking two tabs.
9. Remove two screws (CP/M3x12) fixing [GROUND PLATE, I/F] and remove it from C214
MAIN board.
Be careful with the edges of the shield plate, as they are very sharp.
Make sure to match a RED marking on the cable of the motors, to pin 1 of
connector on C214 MAIN board when you re-connect them.
Rev. A
CAUTION
Figure 3-4. C214 MAIN Board Removal
Chapter 3 Disassembly and Assembly
3-7