Epson Perfection 4870 Photo - Removal of TPU Main Board

Perfection 4870 Photo Revision A
DISASSEMBLY/ASSEMBLY Disassembly Procedure 57
4.2.14 Removal of TPU Main Board
1. Remove of TPU Lower Housing. (Refer to 4.2.11 Removal of TPU Lower Housing )
2. Move the TPU Carriage Unit to the position shown in Figure 4-44.
Figure 4-44. Moving TPU Carriage Unit
3. Disconnect the TPU Carriage FFC from the TPU Main Board. (Refer to Step 2 to
Step 3 in 4.2.12 Removal of TPU Inverter Board.)
4. Disconnect the three connectors from the TPU Main Board.
5. Remove the two screws (C.B.P M3x8) which secure the TPU Main Board Unit.
6. Remove the TPU Main Board Cover and then remove the TPU Main Board.
Figure 4-45. Removal of TPU Main Board
TPU Carriage Unit
Connectors
TPU Main Board Unit
Positioning holes
and the bosses
C.B.P M3x8
(5±1 kgfcm)
Positioning holes
and the bosses
TPU Main Board TPU Main Board Cover