Ricoh DD5450 Field Service Manual page 177

• Relay PCB unit
2. Disconnect the connectors. (7 places)
3. Remove the four screws to remove the relay
PCB unit.
(Pan head screw with spring plain washer 3 x 6)
Reinstallation
IMPORTANT
● After replacing the relay PCB unit, check the
ROM version of the relay PCB unit. If it is not
the latest version, upgrade the version.
• Switching power supply 5V
2. Disconnect the connectors. (2 places)
3. Remove the four screws to remove the
Switching power supply 5V.
(Pan head screw with spring plain washer 3 x 6)
• Switching power supply 24V
2. Disconnect the connectors. (3 places)
3. Remove the five screws to remove the
Switching power supply 5V.
(Pan head screw with spring plain washer 3 x 6)
Chapter 4 1 Exterior
Relay PCB unit
Switching power
supply (5V)
Switching power
supply (24V)
４
175