Epson L800, Руководство по обслуживанию

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L800/L801 Revision A
Disassembly/Reassembly Main Board Unit 29
Confidential
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Disassembling the Main Board Unit
1. Remove the Main Board Unit (p.27) .
2. Remove the seven screws and remove the Upper Shield Plate M/B.
•
Screw (6 pcs.): C.B.S. M3x6 (tightening torque: 5-7 kgf.cm)
•
Screw (1 pc.): C.P. M3x6 (tightening torque: 4-6 kgf.cm)
(The numbers shown in the figure indicate the order of tightening the screws.)
Figure 1-27. Removing the Upper Shield Plate M/B
3. Remove the two screws and remove the Shield Plate M/B Sub.
•
Screw (2 pcs.): C.B.S. M3x6 (tightening torque: 4-6 kgf.cm)
(The numbers shown in the figure indicate the order of tightening the screws.)
4. Remove the screw and remove the Main Board Unit.
•
Screw C.B.S. M3x10 (tightening torque: 4-6 kgf.cm)
Figure 1-28. Removing the Main Board
C A U T I O N
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Do not apply unnecessary force on the screw receiving parts of
the Lower Shield Plate M/B, as they are easy to deform.
̈
When assembling or disassembling the Upper Shield Plate M/B,
be careful of its sharp edges.
Screw Receiving Part
3
Upper Shield Plate
M/B
2
5
1
6
4
7
Lower Shield Plate
M/B
Screw Receiving Part
C A U T I O N
Be careful of the sharp edges shown in the figure below when
assembling or reassembling.
̈
When installing the Main Board, match the positioning hole
with the guide pin shown in
Fig.1-28 .
̈
Tighten the screws in the order given in Fig.1-27 (p.29) ,
Fig.1-28 .
[Rear Side]
1
2
Shield Plate
M/B Sub
Upper Side: Main Board
Lower Side: Lower Shield Plate M/B
Sharp edge
Positioning Hole and
Guide Pin