Replacing Switching Power Supply Module 2 - Epson RC420 Manual

(12) Remove four mounting screws, and
(13) Secure the metal plates to a new
(14) Mount the new Switching Power Supply module 1 in the same position.
(15) Secure the new Switching Power Supply module 1 with the screws 1 and 2.
(16) Connect the CN1 and CN2 connectors.
(17) Secure the Bottom Cover to the Controller with the six mounting screws.
(18) Insert the battery into the Controller.
(19) Secure the battery cover to the Controller with the six mounting screws.
(20) Connect the battery connector to the battery.
(21) Connect the connector (X400) of the board for display to the front cover.
(22) Secure the front cover to the Controller with the four mounting screws.
(23) Turn ON the UPS ON/OFF switch.
(24) Connect the all the cables to the back of the Controller.

5.3.2 Replacing Switching Power Supply Module 2:

■ Before performing any maintenance procedure, always make sure that the main
power of the Controller is turned OFF and that the high voltage charged area is
completely discharged.
Performing any maintenance procedure while the main power is ON or the high
WARNING voltage charged area isn't discharged completely is extremely hazardous and
may result in electric shock and/or cause serious safety problems.
(1) Perform the step (1) through (9) in the previous section 5.3.1 Replacing Switching
(2) Remove five connectors from the
RC420 Rev.9
remove the metal plates from the
Switching Power Supply module 1.
Switching Power Supply module 1
with the four mounting screws.
Power Supply Module 1 .
Switching Power Supply module 2.
CN7 and CN8 connectors:
Projections on the upper side
CN15 connector:
Projections on the lower side
Maintenance 5. Switching Power Supply Module
Metal Plate
Metal Plate
Connectors
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