Epson MR Series Technical Reference Manual page 266

Note:
The position of the power supply cable is different for 3.5"HDD or 2.5"HDD.
3.5"HDD Model
Power
supply
2.5"HDD Model
Power
supply
4. Remove the FDD cable from the FDD circuit board.
9-50 Disassembly and Assembly
3.5"HDD
CD-ROM
FDD
2.5"HDD
CD-ROM
FDD
FDD circuit board
Rev. I