Epson Stylus Pro 3800 Service Manual page 117

Epson Stylus Pro 3800/3800C/3850/3880/3885/3890
4.3.4.2 BOARD ASSY., POWER SUPPLY
1. Pull out the BASE, ENCLOSURE.
When removing the BOARD ASSY., POWER SUPPLY, do not
C A U T I O N
start the work immediately after disconnecting the AC cable.
Wait for at least five minutes for the electrolytic capacitor to
finish discharging residual charges.
When performing step 2. to step 4., be careful not to disconnect
the cable forcibly from CN2 on the board as the cable is
directly-mounted and it cannot be disconnected.
2. Disconnect the Power Board Cable from CN13 on the BOARD ASSY., MAIN.
Note that the connector is locking the cable. Be sure to unlock it to disconnect the
cable. See Figure 4-33.
3. Disconnect the HARNESS, AC INLET from CN1 on the BOARD ASSY.,
POWER SUPPLY. See Figure 4-34.
4. Remove the four screws that secure the BOARD ASSY., POWER SUPPLY to the
BASE, ENCLOSURE, and remove the BOARD ASSY., POWER SUPPLY.
Four C.B.S. 3 x 6 screws (6
CN2
Figure 4-32. Connector Layout of the BOARD ASSY., POWER SUPPLY
DISASSEMBLY & ASSEMBLY
(p111)
±
1 kgf.cm)
CN1
Disassembly/Assembly Procedure (Group 1)
CN13
Figure 4-33. Disconnecting the Power Board Cable from CN13
C.B.S. 3x6
BOARD ASSY., POWER SUPPLY
Figure 4-34. Removing the BOARD ASSY., POWER SUPPLY
Revision C
Power Board Cable
BOARD ASSY., MAIN
HARNESS, AC INLET
CN1
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