Epson RC520 Manual page 151

(7) Remove the mounting screw for the CPU board on the rear side of the Control Unit
(8) Install the new CPU board in the slot. Then, mount the board with the mounting
(9) Connect the cables to the CPU board.
RC520 Rev.7
CPU Board: SPI-6941-EPP
The Front Panel connector
details are shown in the figure.
CPU Board: PC686BX(PC)-EPP850
Front Panel Connector
The Front Panel connector
details are shown in the figure.
and remove the CPU board from the slot.
screw.
HDD
USB Parallel Port
Red Black
HDD
LED
Red
HDD
Parallel Port
Black
POWER LED
Green
Red
HDD LED
Black
Maintenance 4. Control Unit
FDD
Serial Port
COM2
Serial Port
COM1
Front Panel Connector
Green Black
POWER
LED
RESET
Red
FDD
Serial Port
COM2
Serial Port
COM1
USB
Memory
Red
RESET
Red
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