Mitsubishi Electric MELDAS 600M Series Instruction Manual page 429

< HDD unit installed externally to the control section >
Turn the control section power OFF when replacing the HDD unit.
1) Confirm that the control unit power is OFF. (If the power is not OFF, turn it OFF.)
2) Open the operation box door.
3) Disconnect the heater power cable running from the HDD unit to the operation section PCB.
4) Disconnect the F140 cable connected to the HDD in the HDD unit.
5) Remove the HDD unit installation screws, and remove the HDD unit from the operation box.
6) Replace the HDD unit with the new one, install it onto the operation box, and fix with the
7) Connect the F140 cable to the HDD in the HDD unit.
8) Connect the heater power cable of the HDD unit to the operation section PCB.
9) Close the operation box door.
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(Hold the HDD firmly in front and back when disconnecting the F140 cable.)
installation screws.
(Hold the HDD firmly in front and back, and pay attention to the connector direction when
connecting the F140 cable.)
Operation
section
PCB
Heater power cable
Heater power cable
HDD unit
F140 cable
Pin 1 display mark
Pin 1 display mark
CAUTION
Incorrect connections may damage the devices, so connect the cables to the specified
connectors.
Do not replace the HDD while the power is ON.
Dispose of the old HDD according to local laws.
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CHAPTER 3 MAINTENANCE
7. Daily Maintenance
Control
section
F140 cable
HDD unit
Heater power cable
Leave 4 pins open
Pay attention to the connector direction.
F140 cable
Leave 4 pins open on the left side
and connect the cable.
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Heater power cable