Epson LQ-570+ Manuale di servizio - Pagina 30

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Epson LQ-570+ Manuale di servizio
REV.-A
3.2.3 Removing the Circuit Boards
)
This section describes how to remove the BOARD ASSY.,MAIN (C107 MAIN board), the BOARD
3.2.3.1 Removing the BOARD ASSY.,MAIN (C107 MAIN Board)
Remove the HOUSING ASSY.,UPPER (see Section 3.2.2.2).
2.
Remove the CB (M3 X 6) screw that hold the HOLDING PLATE,FFC to the SHIELD PLATE,MAIN
BOARD, and remove it.
3.
Disoonneot the FFC(CABLE,HEAD, FRONT(REAR)) removing the oables for the CN6 and CN7
4.
Remove three CBB (C) (M3 X 10) sorews that hold the SHIELD PLATE,MAIN
BOARD to the BOARD ASSY.,MAIN, and remove it.
SHIELD PLATE, RIGHT>
5.
Remove the CBB (M4 X 10) sorew that hold the SHIELD PLATE, RIGHT to the BOARD
HOUSING ASSY.,LOWER. Remove the SHIELD PLATE, RIGHT.
6.
Remove the cables from the following connectors on the main board: CN3 (brown 12-pin), CN4
(white 5-pin), CN5 (white 6-pin), CN8 (yellow 2-pin), CN9 (black 2-pin), CN1O (blue 2-pin),CN11
(white 2-pin) and CN12 (red 2-pin).
7.
Remove three CBB(C) (M3 X 10) screws and CB A-IAMITITE (M3 X 8) sorew that hold the h
board to the lower ~sej Remove the main board.
Be oareful with a color of the harness cable when you connect them to the mnnector CN1l and
10) Screw -
BOARD ASSY., MAIN CBB(C) (M3X 10) Screws
Figure 3-6. Removing the Shield Plate, MAIN BOARD
CAUTION
~
MAIN
3-7
BOARD