Disassembly Procedures Unique To The Lq-570+/1070; Removing The Cl07 Main Board Assembly - Epson LG1-1070 Service Manual

Disassembly Procedures Unique to the LQ-570+/1070+

For the part, disassembly of the LQ-570+/1070+ is the same as for the LQ-
most
number of screws to remove for the LQ-570+/1070+ than the LQ-570/1070. For your
convenience, this section describes disassembly of the Cl07 MAIN board, power
supply board, and control panel. Refer to Chapter 3 of the
for other disassembly procedures.
Manual

Removing the Cl07 MAIN Board Assembly

1. the upper housing assembly. (See Section 3.2.2.2.)
Remove
2. 1 CB (M3 x 6) screw securing the holding plate for the flat flexible cable
Remove
the board shield plate. Then remove the holding plate.
to main
3. Disconnect the FFC (front and rear head cable) by disconnecting the cables
connectors CN6 and CN7 on the main board assembly.
4. Remove the 3 CBB(C) (M3 x 10) screws that hold the
the main board assembly, and remove the shield plate.
Right Shield Plate
CBB (M4 X 10) Screw
Cl07 MAIN Board Assembly
Figure B-IO. Remouing the Main Board Shield Plate
5. Remove 1 CBB (M4 x 10) screw that holds the right shield plate to the main
board assembly. Remove 1 CBB(C) (M4 x 14) screw that holds the right shield
plate to the lower housing assembly. Then remove the right shield plate.
6. Remove cables from the following connectors on the main board: CN3 (brown,
12 pins); CN4 (white, 5 pins); CN5 (white, 6 pins); CN8 (yellow, 2 pins); CN9
(black, 2 pins); CNlO (blue, 2 pins); CNll (white, 2 pins); and CN12 (red, 2 pins).
3 CBB(C) (M3 x 10) screws and 1 CB (M3 x 8) screw that hold the
7.
Remove
board to the lower case. Then remove the main board.
Both connector CNll and CN12 are 2-pin connectors, so be careful not to
them up when you connect them to the main board:
BLACK WIRE AND WHITE WIRE: CNll
GRAY WIRES:
Epson LQ-570+/1 070+
LQ-570/1070 Service
- - -
CAUTION
CN12
Appendix B
board shield plate to
main
- -
F F C Holding Plate
Main Board Shield
Plate
main
mix
from
B-15