Epson Stylus PHOTO 890 Service Manual page 85

EPSON Stylus Photo 890/1280/1290
C378PSB/PSE
Board
SHIELD PLATE, M/
Earth Plate
Figure 4-4. Circuit Board Removal
6. For removing each circuit board assembly from the M/B Shield Plate, remove the
screws securing each unit and shield plate.
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C393MAIN Board: Total 10 screws
7 screws: CBS (3x6)
3 screws: CP (3x6)
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C378PSB/PSE Board: Total 4 screws (CBS, 3x6)
DISASSEMBLY AND ASSEMBLY
CBS (3x6)
C393MAIN Board
Earth Plate
CP (3x6)
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Since the CN10 is a locking connector, be sure to unlock it
C A U T I O N
before disconnecting the cables.
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Since the head FFCs have the same number of pins, be sure to
connect them to the right connectors.
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When connecting the cables, connect them to the correct
connectors paying attention to the number of the pins.
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Be sure to perform the following adjustments when you replace
A D J U S T M E N T
R E Q U I R E D
the Main Board:
1. Head ID input (Refer to Chapter 5.)
2. Bi-D adjustment (Refer to Chapter 5.)
3. USB ID input (Refer to Chapter 5.)
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Be sure to replace the following parts when replacing the Main
Board:
1. Waste ink absorbers
2. Ink cartridge (BK & Color)
Note this part replacement is required since several counters stored
in the EEPROM are lost with a Main board replacement.
Disassembly Procedures
Revision C
85